33results about "Foundation engineering" patented technology

A decorative floor tile including at least one decorative layer and a backing layer having an array of resilient annular projections. Each annular projection includes a concave top surface, an outside wall surface, and an inside wall surface. The inside wall surface defines a central, blind passageway area. When the decorative floor tile is installed over an underlying surface, and pressure is applied to the decorative floor tile, a vacuum is created within the blind passageway and the underlying surface. The vacuum increases the amount of frictional drag between the surface covering and the underlying surface, and thus allows the surface covering to remain in place without the need for an adhesive.

The invention discloses a communication pole tower with a steel tube pile as foundation and aims to provide the communication pole tower which is reasonable in structure, capable of achieving quick piling and fixing and mounting, good in stability and convenient and fast to replace and detach. The communication pole tower comprises a tower body and the steel pile extending into the ground. The bottom of the tower body is provided with a tower bottom flange. The top of the steel pile is provided with a pile top flange. The tower bottom flange is connected with the pile top flange through a connection piece. The pile top flange is provided with a plurality of reserved lower wiring holes allowing cables to pass. The outer wall of the steel pile is provided with a plurality of reserved grounding ends. The pile top flange is provided with a plurality of reinforcement connection pieces. The bottom of the outer side of the tower body is provided with a concrete-encapsulated tower foot. The pile top flange and the reinforcement connection pieces are all located in the concrete-encapsulated tower foot and connected with the concrete-encapsulated tower foot. The communication pole tower has the beneficial effects that the communication pole tower can be mounted quickly, the construction period is short, the structural strength is guaranteed, and disassembly and assembly are convenient in the maintenance and replacement processes; and the steel pile can be reserved, and the tower body can be replaced directly very conveniently and fast.

The invention discloses a construction method for the concrete bottom sealing of a steel sheet pile cofferdam, including (1) base construction: partitioning is carried out according to the area of ​​the steel sheet pile cofferdam, and each area is excavated and tested for its elevation, and after conforming to the design base elevation Stop to form the base; (2) Cushion construction: Lay gravel cushion in the base; (3) Back cover construction: Arrange the back cover ducts according to the partitions, and carry out concrete pouring through the back cover ducts, and at the same time check the elevation until it conforms to the design Stop after the back cover elevation; this construction method avoids the inclusion of sediment and concrete by adding cushion construction and adjusting the concrete pouring sequence, thereby improving the strength of the back cover concrete and ensuring the quality of the project.

The invention belongs to the field of offshore wind power engineering, and particularly relates to a construction method of an aquaculture net cage based on a built offshore wind power multi-pile bearing platform foundation. The construction method comprises the following steps that a first hoop is installed on a pile leg in a surrounding mode; a fixing piece is installed on the first hoop; the rest of hoops are installed on the pile leg along the fixing piece; and anchor chain rings of a net are installed in cooperation with the hoops, the edge of the net is bound to the fixing piece, and installation of the net is completed. The construction method has the following beneficial effects that the construction method for installing the net through the hoops and the fixing piece is low in difficulty, underwater welding operation is not needed, and the cost is saved.

The invention discloses a grouting technology state switching method. The grouting technology state switching method is characterized by comprising the following steps that grouting is in a normal grouting state, when the abnormal situation is detected, grouting is switched into an abnormal grouting state, and abnormity handling is conducted; and before grouting is switched into abnormal grouting,priority judgment is conducted firstly, and a priority judgment method comprises the steps that when the abnormal situation is triggered, whether other abnormities are handled currently or not is judged firstly, and if not, abnormity handling is conducted directly; and if handling of the abnormal situation is not finished currently, which of the two abnormal situations has high priority is judged, the resource use right of current abnormity handling can be captured under the abnormal situation with the high priority, and the abnormal situation with the high priority is handled preferentially.According to the grouting technology state switching method, the detecting and handling problems of the various grouting abnormal situations are solved, and meanwhile, normal grouting and abnormal grouting are switched.

The invention discloses a lift type underground ring main unit based automatic water drainage system. The lift type underground ring main unit based automatic water drainage system comprises a lift type underground ring main unit integral structure, a water accumulating pond, a submersible pump, a middle controller, a first liquid level meter, a second liquid level meter, a third liquid level meter, a water drainage tube, a non-return valve, an audible and visual alarm, an automatic dialing device, a standby power supply, a photographic device, a client side and a foundation pit, wherein whileaccumulated water reaches the position of the second liquid level meter, a signal is transmitted to the middle controller to control the submersible pump to start, and water is extracted and discharged into an urban drainage pipeline through the submersible pump; while accumulated water reduces to the position of the first liquid level meter, the submersible pump stops work, and the non-return valve is closed; if water level rises to the second liquid level meter, the submersible pump is not started, and water level in the water accumulating pond continuously rises; while water level reachesthe third liquid level meter, the signal is transmitted to the middle controller for controlling the audible and visual alarm by the third liquid level meter, and the automatic dialing device is started for transmitting the signal to the client side, so that hidden danger of a safety accident is avoided.

The invention discloses a method for preventing concrete of a spillway tunnel of a hydropower station from cracking and a concrete modification method and particularly relates to a method for modifying the concrete in the spillway tunnel of the hydropower station. According to the method for preventing concrete of the spillway tunnel of the hydropower station from cracking, after the scouring-resistant and abrasion-resistant concrete of the spillway tunnel is poured, no crack is found, and chemical grouting and polymer chemical material sealing treatment are conducted on construction joints and structural joints prearranged in the concrete construction process; detection is conducted in the tunnel after water is introduced into the tunnel for six months, no crack exists on the concrete in the tunnel, and the construction joints and the structural joints prearranged in the construction process are not changed obviously after being scoured. According to the method, through full-responsibility layering and blocking and prearranging of the construction joints, foundational restraints are effectively reduced, and the concrete construction quality is strictly controlled; a comprehensive temperature control measure is taken, so that cracks, which are not arranged in advance, of the concrete are effectively avoided, chemical grouting and polymer chemical material sealing treatment are conducted on the prearranged regular joints, and thus concrete treatment can meet the design requirement.

The invention discloses a connection method for the wall sections of an ultra-deep anti-seepage wall. The connection method for the wall sections of the ultra-deep anti-seepage wall comprises the steps of sequentially arranging downwards a plurality of joint pipes onto the end head of a slotted hole, and pulling out the joint pipes in a process of pouring concrete into the slotted hole, wherein the step of sequentially arranging downwards a plurality of joint pipes onto the end head of the slotted hole comprises the following steps: arranging a valve assembly and an adjustment assembly at oneend of a bottom pipe of each of the plurality of joint pipes; arranging downwards each bottom pipe with the valve assembly and the adjustment assembly at the bottom of the slotted hole, configuring one end of each of the valve assembly and the adjustment assembly to face the bottom of the hole, so that in the process of pouring the concrete, the adjustment assembly adjusts the opening degree of the valve assembly of the bottom pipe, and the phenomenon of pipe casting is prevented; and when the joint pipes are pulled out in the process of pouring the concrete, a pulling-out time for the joint pipes is controlled according to the components of the concrete and an environment temperature, so that the concrete cannot be adhered to the outer walls of the joint pipes. According to the method, the concrete cannot be adhered when the joint pipes are pulled out, a high hole-forming rate is achieved, the drilling amounts of the concrete joints are greatly reduced, the comprehensive working efficiency of the anti-seepage wall is increased, and the ultra-deep anti-seepage wall without wall breakage is formed.

A lateral force resisting system according to the present disclosure includes a metal lateral force resisting panel and holdowns. A foundation bolt placement template may be used to locate and support the foundation bolts during fabrication of the foundation and to further secure the frame foundation interface. The metal lateral force resisting panel may be formed from a single piece of material and may include a plurality of ductility apertures forming lateral force resisting elements to enable the panel to flex without catastrophic failure. In a hybrid configuration, a wooden structural frame may be combined with the metal structural panel. The structural panel may be subdivided into multiple panes using ductility apertures to tailor the response of the panel to the lateral force load. The holdowns secure the rigid structural panel to the foundation bolts and may be either a folded strap and pin configuration or self-tightening.

The invention provides a portable grouting device and a grouting vehicle. The portable grouting device comprises a mobile grouting device, a power supply system and an air supply system, wherein the mobile grouting device comprises a flat car, and a first material cylinder, a second material cylinder, a grouting machine and an electric control cabinet are arranged on the flat car; a first materialsucking pump and a second material sucking pump are arranged in the first material cylinder and the second material cylinder respectively, the first material sucking pump and the second material sucking pump are correspondingly connected with a feeding port of the grouting machine through a material sucking pipe, a material conveying pipe is arranged at a discharging port of the grouting machine,and a grouting gun is arranged on the material conveying pipe; and the first material suction pump and the second material suction pump are correspondingly connected with the air supply system, and the electric control cabinet is connected with the power supply system through a cable. As the mobile grouting device and the power supply system and the air supply system are separately arranged, themovable grouting device is small in size and convenient to move so that the mobile grouting device can be moved into a narrow working area such as an underground tunnel for construction operation, andcompared with a large grouting device, the mobile grouting device is small and portable.

The invention discloses a method for correcting building inclination caused by pile inclination. According to the method, a static pressure inclined pile is adopted in the method to be matched with pre-stressed anchor cables to correct inclination of an above-ground structure, meanwhile soil on one side in the direction opposite to the inclined direction of inclined piles is hollowed out to reduce soil pressure, and soil on the other side in the direction opposite to the inclined direction of the inclined piles is matched with soil pressing piles to increase the soil pressure so as to correct and reinforce inclination of foundation piles, so that inclination correction of the building and a whole pile foundation can be achieved. The method can achieve the aim of inclination correcting under the condition that the building does not need to be jacked, the safety coefficient is high, and the cost is low.

The invention discloses a sleeve valve pipe for reinforcing the pit bottom of a water-rich pebble bed deep foundation pit and a construction process, and the sleeve valve pipe is used for reinforcingthe pit bottom of the water-rich pebble bed deep foundation pit, preventing the pit bottom from bulging and improving the stability of the foundation pit. The sleeve valve pipe is characterized by comprising a sleeve valve pipe body (1), a grouting pipe (2), grouting liquid (7), a manual sand filling layer (6), a drainage plate (5), a grout stopping plug (3), a connector (8), a rubber raft (4) anda conical plug (9). The construction process comprises the following steps: after surveying and setting out, positioning a drilling machine in place, drilling holes, preparing sand, installing the sleeve valve pipe, constructing a manual sand filling layer, conducting grouting in sections and sealing holes. The sleeve valve pipe is fixed through manual sand filling, river sand in the manual sandfilling layer can be flushed into a pebble stratum through high grouting pressure and grouting liquid and is effectively packed into gaps of the pebble stratum after being mixed with the grouting liquid, the gradation of the pebble stratum is changed, a better grouting effect is achieved, the manufacturing cost is low, and economic benefits are high.

The invention discloses movable grouting equipment. The movable grouting equipment comprises a grout making unit and a grouting control unit; the grout making unit is used for making cement into cement grout, and the grouting control unit is used for injecting the cement grout into grouting holes to complete grouting; and the grout making unit and the grouting control unit are detachably mounted on a driving vehicle. According to the movable grouting equipment, the integrated movable grout making unit and the integrated movable grouting control unit are adopted, so that convenience and quickness in movement are realized.

The invention provides an application of a positioning rib in a large storage tank bearing platform ring wall foundation. By means of the application, the flatness of the surface of a formed ring wall is improved, trimming of the surface of the ring wall is more convenient, efficient and rapid, the construction period is shortened, and the construction cost is reduced. The positioning rib is applied in the large storage tank bearing platform ring wall foundation, the elevation of the positioning rib and the elevation of the formed ring wall foundation are consistent, the positioning rib is an annular steel bar (1) arranged in the horizontal direction, the bottom end of the annular steel bar (1) is welded to the top ends of vertical ribs (2) arranged vertically, and the distance between every two adjacent vertical ribs (2) is 900-1100 mm. The bottom end of each vertical rib (2) is welded to a main rib (3) arranged in the horizontal direction, and the main ribs (3) are welded and fixed to the top of a storage tank bearing platform ring wall foundation steel bar net frame (4).

The invention provides a method for mounting and adjusting a hammer crusher. The method for mounting and adjusting the hammer crusher comprises the steps that (1) a foundation is constructed; (2) backing boards are mounted through a bed mortar mode, wherein a layer of cement slurry is brushed on the foundation, a formwork is then arranged at the positions where sizing blocks are mounted, mixed mortar is poured into the formwork and rammed tightly by a hammer, flat backing boards are arranged, the elevation of the sizing blocks is measured through a level gauge, the sizing blocks are leveled, and then demoulding, buttress and maintenance are carried out; (3) the foundation is maintained; (4) equipment is mounted; (5) the equipment is adjusted, wherein foundation bolts are fastened, the equipment is primarily adjusted to be level by adjusting the sizing blocks in a free state, the degrees of tightness of all sets of the sizing blocks are maintained to be in consistency, the bolts are then fastened in sequence, the bolts are fastened with proper strength in a first round and then are tightened by adding a lever, locking nuts are then fastened, and lastly all the backing boards are secured firmly through spot welding. Through the steps, influences brought by uneven foundations are compensated, the precision of mounting of the hammer crusher is ensured, the running vibration of the hammer crusher is reduced effectively, and the service life of the equipment is prolonged.

The invention discloses a barrel foundation capable of sinking through blasting and a using method thereof. The barrel foundation comprises a steel portion, a concrete portion and explosive installation holes. In use, a blasting scheme is made first, then land fabrication and explosive filling are conducted, the explosive installation holes are numbered and grouped in sequence according to the blasting scheme, the device is transferred to an installation site, a first set of explosive is detonated after the device is stabilized according to the blasting scheme to enable the device to sink under the action of its own dead weight after blasting, a second set of explosive is detonated after sinking becomes stable so that the device can sink again under the action of its own dead weight after blasting, and the operation is repeated till all explosive is detonated or the barrel foundation sinks to a specified depth. In this way, the marine barrel foundation can be placed and made to sink through blasting, the defect of the negative-pressure sinking technique or positive-pressure sinking technique that operation is affected by sea conditions greatly is overcome, the whole installation process can be controlled and regulated, offshore construction cost can be reduced, and offshore construction time can be shortened.

A concrete charging bucket landing anti-swing system for a dam construction cable crane comprises a feeding positioning mechanism and a traction speed regulation mechanism. In a feeding platform of the feeding positioning mechanism, two fixed pulleys are fixed to the inner side of a fort ridge, a wheel disc is parallel to the ground, double-drum winches are installed on the fixed pulleys in the horizontal direction, and a first rope and the fixed pulleys jointly form a four-line rail, so that a charging bucket moves back and forth under traction of the winches and can be accurately and rapidlyin place. The traction speed regulation mechanism comprises a cable crane lifting hook provided with a speed sensor and an upstream cable-stayed positioning winch connected with a self-adaptive speedregulator, and the cable crane lifting hook and the upstream cable-stayed positioning winch can enable the charging bucket to be quickly positioned at a dam bin position needing to be poured and prevent collision accidents when the cable crane charging bucket enters the bin. The time efficiency and the safety of hoisting the heavy object by the cable crane are greatly improved.

The invention relates to a novel quickly-disassembled-and-assembled combined cofferdam with a slope-retaining gallery for a river channel. The effects that construction is convenient, safety is achieved, the anti-impact capacity is improved, and damage to a channel slope lining structure plate is repaired are effectively achieved. A cofferdam body is composed of an inlet section cofferdam body, amiddle section cofferdam body, a plug section cofferdam body and a pulling operation fixing device, the inlet section cofferdam body, the middle section cofferdam body and the plug section cofferdam body are connected together through connecting plates and flanges at the rear end of an inlet section, the front part of the inlet section cofferdam body is provided with the pulling operation fixing device composed of a ground anchor, a winch and a pulley block, the front lower part of the inlet section cofferdam body is provided with an adsorption fixing device, the ground anchor and the winch are arranged on a river bank of the inlet section cofferdam body, the pulley block is connected with the winch through a pulling rope, the ground anchor is connected with the front part of the inlet section cofferdam body through a pulling rope, the pulling operation fixing device is adopted to conduct pulling operation on the cofferdam, and the adsorption fixing device is utilized to fix the cofferdam. The damaged channel slope lining structure plate can be repaired without cutting off water, construction is convenient, safety is achieved, and the working efficiency is high.

The invention discloses a center cylinder component, a center cylinder and a tower foundation. The center cylinder component is in a bending shape and comprises a first section and a second section connected sequentially. The first section is provided with a first peripheral wall and a first side wall deviated from the second section. The second section is provided with a second peripheral wall and a second side wall deviated from the first section. The center cylinder component is provided with first prestress pipelines and second prestress pipelines penetrating the center cylinder component.Two ends of the first prestress pipelines are opened on the first side wall and the second peripheral wall separately, and two ends of the second prestress pipelines are opened on the second side wall and the first peripheral wall separately. The center cylinder component which is a prefabricated product is not poured in situ, and the volume and width of the center cylinder component are far smaller than those of the center cylinder, so that the center cylinder component is conveniently transported, and the splicing efficiency is high by a connecting mode of tensioning prestressed tendons.

The invention discloses a large-dip-angle trash rack one-time forming suspension type sliding formwork and a construction method. The large-dip-angle trash rack one-time forming suspension type sliding formwork comprises a formwork body system and a suspension system; the formwork body system comprises trash rack-shaped formworks formed by splicing panels, and reinforcing ribs and supporting trusses are arranged between the formworks; a working platform is laid on the upper surface of the formwork body system; a hydraulic control system is arranged on the working platform; the suspension system comprises a suspension supporting frame of a truss structure, and the suspension supporting frame is fixed to a trash rack upper platform through anchor bars and steel supports; a plurality of groups of suspension pull rods are connected below the suspension supporting frame; the bottom ends of the suspension pull rods are connected with a truss of the formwork body system through hydraulic jacks; the suspension angle of the suspension pull rods is consistent with the inclination angle of the trash rack; a concrete conveying system is arranged above the formwork body system along the installed steel bars and the installed rails; and a defect elimination maintenance system is connected below the formwork body system. The large-dip-angle trash rack one-time forming suspension type slidingformwork has the characteristics that steel bars are bound in place at a time, grid grooves and rails are installed at a time, second-stage concrete construction is omitted, and one-time forming is achieved through a suspension type sliding formwork.

The invention provides a building method of a concrete faced rockfill dam in a karst development region. Compared with a conventional dam foundation treatment mode, a mode of the method provided by the invention is characterized in that the dam foundation basic treatment of the mode comprises two types: riverbed section dam foundation treatment and left and right bank dam foundation treatment; fortwo kinds of foundation surfaces, exposed water-eroded groove inner surface soil, loose soil layers and boulder stones need to be cleanly cleared; undisturbed filling soil capable of being cleared inwater-eroded grooves is cleared; and for conditions that the water-eroded grooves are narrow, and filling clay is difficult to clear in a local region, 30cm of reverse filter materials are filled andbuilt on the surface, and compaction treatment is performed. Similar problems of karst development, wide spreading of water-eroded grooves and stalagmites and clints, concrete faced rockfill dam foundation construction treatment of a gryke development region are solved. An obvious treatment mode is provided for conditions of exposed water-eroded grooves, stalagmites and clints and the like of thedam foundation. The treatment mode has the advantages that the treatment effect of the dam foundation basic surface can be effectively ensured; and adverse influence caused by nonuniform sedimentation due to a dam foundation problem on an anti-seepage body and a dam body is avoided.

The invention discloses a deviation rectifying method for a soil layer pile foundation. The method comprises the following steps that S01, an initial pile hole is drilled in a soil layer; S02, a first extendable mechanism and a second extendable mechanism are rotationally connected to a drill rod, the first extendable mechanism is perpendicular to the drill rod, the second extendable mechanism is perpendicular to the drill rod, and the extendable directions of the second extendable mechanism and the first extendable mechanism are opposite and parallel; and S03, the levelness of the first extendable direction mechanism and the second extendable direction mechanism is measured, if the end, away from the drill rod, of the second extendable mechanism is inclined downwards, the second extendable mechanism is controlled to extend, and the first extendable mechanism is controlled to extend till the first extendable mechanism or the second extendable mechanism is horizontal; and if the end, away from the drill rod, of the second extendable mechanism is inclined upwards, the first extendable mechanism is controlled to extend, and the second extendable mechanism is controlled to retract till the first extendable mechanism or the second extendable mechanism is horizontal. The problem that in the prior art, it cannot be guaranteed that a pile hole is not inclined under the conditions that cost is not increased and the project progress is not slowed down is solved.

The invention provides an adjustable portable template supporting device. A supporting seat is of a cross-shaped structure, each end of the supporting seat is provided with a threaded hole, and a supporting assembly is in threaded connection with the interior of each threaded hole; each supporting assembly comprises a screw rod and a supporting plate, the periphery of each screw rod is in threaded connection with the interior of the corresponding threaded hole, one end of each screw rod is fixedly connected to one end of the corresponding supporting plate, and the other end of each supporting plate makes contact with a template in a rectangular hole channel; and each screw rod is provided with a first through hole, and a pry bar is detachably installed in each first through hole. According to the adjustable portable template supporting device, the supporting length can be adjusted, safety and reliability are achieved, no danger exists in the disassembling and assembling process, operation is easy, the adjustable portable template supporting device can be carried with a user after being disassembled, the standardization is high, the supporting surface is wide, and the hole forming quality is good; and shaping manufacturing is adopted, accessories are standard parts, the adjustable portable template supporting device is suitable for batch production, the manufacturing cost is reduced, the structure is simple, and the practicability is high.

A rapid construction method for gate pier concrete high and large formworks comprises the following steps that before surveying and setting out are conducted and installation is conducted, formwork installation side lines are determined through surveying and setting out, and the position line of each formwork is marked according to a board matching drawing; the formworks are assembled, and before installation, all the sets of formworks are assembled in advance; the formwork are installed, wherein workers are matched with a crane to sequentially install the assembled formworks according to a surveying and setting-out line and a plate matching drawing; and the template is reinforced and adjusted. By the adoption of the structure, an existing Doka formwork of a project is utilized to be assembled into a high and large formwork supporting system, steel formworks do not need to be additionally configured and customized according to a traditional construction technology, the construction efficiency is improved, the construction period is greatly shortened, and the construction cost is reduced.

The invention discloses a composite type anti-settling plate basis with railing gaps in a bottom plate and a manufacturing method thereof. The anti-settling plate basis is composed of the bottom plate and connecting beams, the surface of the basic bottom plate is in the shape of railing gaps, the width of gaps between every two adjacent steel plates is 0.1-0.3 time as wide as the width of the steel plates, the width of the gaps is equal or unequal, and upward or downward skirt plates may be arranged on the two sides of the bottom plate. The manufacturing method processes comprise basic bottom plate manufacturing and skirt plate and connecting beam welding on the basic bottom plate, wherein the basic bottom plate is formed by the steel plates which are arrayed and arranged, the gap left between the adjacent steel plates constitutes the railing gap of the basic bottom plate, and then the skirt plates and the connecting beams are welded on the bottom plate. The composite type anti-settling plate basis with railing gaps in the bottom plate and the manufacturing method thereof have the advantages that the manufacturing method is simple, the manufacturing cycle is short, the welding work amount is small, the manufacturing cost is low, and compared with a normal anti-settling plate basis, carrying capacity of the manufactured anti-settling plate basis improves 10%-50% on the basis that the structural rigidity is guaranteed.

The invention discloses a combined cofferdam suitable for offshore large-size bearing platform construction, relates to the field of constructional engineering, and aims to solve the problems that under the conditions of super-thick silt layer geology and large-size bearing platform construction, an existing constructed cofferdam is too high in material consumption, high in cost, difficult in sinking, prone to deviation, high in measurement and positioning difficulty and the like. The combined cofferdam suitable for offshore large-size bearing platform construction comprises a plurality of main steel pipes, a plurality of connecting lock catches and a plurality of pieces of profile steel; a plurality of bearing platforms are arranged in multiple columns; each column of bearing platforms is formed by vertically arranging the plurality of bearing platforms side by side; a circle of profile steel is welded to the periphery of each bearing platform; the multiple main steel pipes are arranged in rows; every two adjacent main steel pipes are connected through a connecting lock catch; the rows of main steel pipes surround the peripheries of the multiple columns of bearing platforms and are welded to the profile steel; and every two adjacent columns of bearing platforms are arranged in a staggered mode and are connected through one row of main steel pipes. The combined cofferdam is used for fixing the bearing platforms.