80 results about "Geotechnical engineering" patented technology

The invention relates to a bituminous pavement track field evaluation method which comprises the following steps: A, performing field track survey, namely (1) selecting a road section to be evaluated; (2) testing the track depth; and B, calculating and settling the measurement result: (1) drawing a cross-section profile and a top datum line of each lane on the section line according to a ratio of 1:1; (2) determining the track depths D1 and D2 on the drawings, and reading to 1mm, wherein the maximum value serves as the maximum track depth of the section; (3) working out the mean value of the maximum track depth of each measured section to serve as the mean track depth of the evaluated road section; (4) determining the track deformation area of each section by employing a grid method, and determining the track deformation area of the evaluated road section through a formula; and (5) calculating the track repair engineering quantity between certain adjacent sections through the formula Vi+1=(Ai+Ai+1)*Di+1/2, and calculating the repair engineering quantity of the whole road section. The field track diseases can be objectively evaluated and reliable basis is provided for determining the track maintenance and repair engineering quantity.

The invention discloses a combined splicing tubular pipe. The combined splicing tubular pipe comprises at least two hollow pile bodies which are sequentially connected with each other, and is characterized by also comprising at least one steel tube body, the steel tube body is a hollow cylinder and sleeved on the outer circumference of the junction of two adjacent hollow pile bodies of the combined splicing tubular pile, the steel tube body is provided with a plurality of plug welding holes, and the steel tube body is connected with the hollow pile bodies through the plug welding holes in a welding manner. The inner side wall of the steel tube body is connected with the tail part of one pile body in a welding manner and then connected with the head of another pile body in a plug welding manner. The pile for the irrigation works is simple in pile splicing operation, high in carrying capacity and strong in bend resistance; the steel tube body is added on the junction of the two pile bodies, so that the carrying capacity of the pile for the irrigation works can be increased; the steel tube body is provided with the plug welding holes, and the steel tube body is connected with the pile bodies in the plug welding manner, so that convenience in welding is achieved, and time and labor are saved.

The invention relates to the technical field of geotechnical engineering monitoring, and discloses an underground preloading settlement monitoring system, which is arranged in a to-be-detected foundation soil layer and comprises a testing hole, a fixed rod, a signal cable, a settling tray, a liquid storage tank, a vibration wire type pressure sensor and a data receiving terminal, wherein the testing hole is formed in the to-be-detected foundation soil layer and the lower end of the testing hole stretches into a stable soil layer; the fixed rod is arranged in the testing hole and the lower end of the fixed rod is connected to the stable soil layer; the vibration wire type pressure sensor is arranged on the fixed rod; the settling tray is arranged in an orifice in the upper end of the testing hole; the liquid storage tank is arranged on the lower surface of the settling tray; a pressure pipe is connected o the liquid storage tank; the vibration wire type pressure sensor is connected to the tail end of the pressure pipe; and the data receiving terminal is in communication with and connection with the vibration wire type pressure sensor so as to acquire an electric signal of the vibration wire type pressure sensor. The settlement monitoring system disclosed by the invention is free of influence on the construction and traffic capacity of surface boats, and is safe and high in stability.

The invention discloses an automatic early warning and monitoring device system for urban road underground collapse, and belongs to a road geological disaster monitoring technology. According to the technical scheme, the system is characterized by comprising an underground early warning device and an overground early warning information receiver; a signal transmission module, a displacement sensor, a power supply and a power switch are fixedly connected to the side wall of the cavity in the body and are connected in series through wires; a horizontal transverse shaft is arranged in the sealedcavity, the two ends of the transverse shaft are rotationally connected with the inner wall of the cavity through bearings, and a displacement line is wound on the transverse shaft; a containing groove is formed in the lower end of the body, a falling body is arranged in the containing groove, one end of the displacement line is connected with the power switch, the other end of the displacement line enters the containing groove to be fixedly connected with the falling body, and the displacement sensor is close to the displacement line. The problem that the conventional monitoring technology isnot suitable for directly monitoring the underground collapse of the urban road is solved, and the effect of early warning before the pavement collapse is formed is achieved.

The invention relates to the technical field of geological exploration, and concretely relates to a geological exploration sampling device. The device comprises a supporting plate and a base plate and further comprises: a lifting plate slidably connected with the supporting plate, wherein a handle is fixedly mounted on the lifting plate; a control box located on the lifting plate, wherein the control box is in sliding connection with the supporting plate; and a sampling mechanism respectively connected with the supporting plate and the control box. The sampling mechanism comprises a soil sampling assembly, a lifting assembly and a positioning assembly, and the soil sampling assembly comprises a transmission unit, a sampling head and a sampling tube. The geological exploration sampling device is easy to operate and convenient to carry, the flexibility and practicability of the device are improved, the sampling work efficiency is improved, the accuracy of a sample detection result can be guaranteed, and convenience is provided for workers.

The invention relates to the field of road equipment, especially to an asphalt pavement repairing machine, which comprises a machine body and an asphalt cavity formed in the top wall of the machine body and provided with a small opening. A mixing cavity which is positioned below the asphalt cavity and extends to an opening in the bottom wall of the machine body is formed in the machine body; a feeding hole communicated with the mixing cavity is formed in the bottom wall of the asphalt cavity; a first heating block located in the machine body is arranged on the outer wall of the mixing cavity;and a first transmission cavity located above the asphalt cavity is formed in the machine body. According to the asphalt pavement repairing machine, stones in an old asphalt pavement can be utilized after the old asphalt pavement is shoveled up automatically, the new asphalt pavement is compacted at high temperature after new asphalt is paved, the pavement can be put into use as soon as possible by quickly cooling the pavement through a ground cooling device, the influence on the traffic is reduced, and a large amount of manpower and material resources are reduced.

The invention provides a separated layer water injection string for petroleum exploitation and a water injection process thereof. The separated layer water injection string for petroleum exploitationcomprises a casing pipe and an oil pipe. A plurality of packers are arranged in the casing pipe in a packer sealing mode from top to bottom in sequence. The top of the oil pipe is connected with a tubing hanger. The bottom of the oil pipe penetrates through all the packers in sequence and is connected with a circular plug. An insertion seal is arranged between the oil pipe and each packer. A hydraulic safety joint is arranged in the position, above each packer, of the oil pipe. A water distributor is arranged in the position, below each packer, of the oil pipe. A circulating sliding sleeve isarranged between the hydraulic safety joint at the upper end of the oil pipe and the tubing hanger. Through the separated layer water injection string for petroleum exploitation, separated layer waterinjection can be realized; after the string gets blocked, casing milling and salvaging measures can be taken; and the problem that the separated layer effective period is shortened due to shaking ofan existing water injection string is solved.

The invention discloses a portable depth measuring device for hydraulic engineering. The depth measuring device comprises a main rod, wherein one end of the main rod is fixedly connected with a grip;the grip is sleeved with an anti-slip rubber pad; an outer rod is fixedly connected below the other end, opposite to the grip, of the main rod; an inner rod is arranged in a groove of the outer rod; and one side of the inner rod is fixedly connected with a plurality of first gears. The depth measuring device has the beneficial effects that: the depth measuring device is convenient to carry and usethrough arranging the grip, a detection block is arranged, the main rod is moved to a position above the water surface by means of the grip when in use, the inner rod moves downwards by rotating a rotary handle, a servo motor is turned on to drive a winding disc to rotate when the inner rod touches the bottom, a steel wire is put down until the detection block makes contact with the water surface, the servo motor is turned off, the inner rod leaves the water bottom by means of the grip, the water depth can be detected by detecting the distance between the detection block and the bottom part of the inner rod through using a scaleplate, and the depth measuring device is more convenient to use and carry by adopting the design.

The invention discloses a quantitative evaluation method suitable for the borehole wall stability of a horizontal section of deep shale gas. The quantitative evaluation method comprises the following steps: 1, quantitatively calculating formation collapse and fracture pressure; 2, quantitatively representing uncertainty of formation collapse and fracture pressure; 3, calculating the drilling ECD of the horizontal section of the shale gas, and quantitatively representing the uncertainty of the drilling ECD of the horizontal section of the shale gas; 4, based on the quantitative representation of the formation collapse and fracture pressure uncertainty in the step 2 and the quantitative representation of the shale gas horizontal section drilling ECD uncertainty in the step 3, quantitatively evaluating the shale gas horizontal section well wall stability, namely, an analysis model for quantitatively evaluating the well wall stability is established. According to the method, the difficulty in identifying the borehole wall instability of the horizontal section of the deep shale gas is solved, the quantitative evaluation of the borehole wall stability is realized, the fault occurrence rate can be effectively reduced, the drilling efficiency is improved, the drilling period is shortened, and technical support is provided for reducing the cost and increasing the speed of shale gas drilling construction.

The invention discloses a packer, a setting tool and an integrated method of well drilling and well completion. The packer comprises a cylindrical upper joint, a cylindrical lower joint, an external sleeve for connecting the upper joint and the lower joint, a rubber cylinder piece with the upper end fixedly connected with the upper joint, and an internal sleeve for limiting the lower end of the rubber cylinder piece, wherein the rubber cylinder piece is located in the inner cavity of the external sleeve, the upper end of the internal sleeve is selectively and fixedly connected with the upper joint, the lower end of the internal sleeve extends in the inner cavity of the external sleeve through the rubber cylinder piece, wherein a first clamping and hanging part is arranged on the inner wallof the internal sleeve, the packer is installed on a sleeve pipe in advance, and is opened by the setting tool installed on a drill pipe when necessary.

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.

The invention discloses an anti-scouring system and method for a pile foundation of offshore wind power. The anti-scouring system for the pile foundation of the offshore wind power comprises a slope section system, a top section system and a three-dimensional supporting structure, wherein the three-dimensional supporting structure is trapezoidal and comprises a base, a top horizontal surface and an inclined slope surface, and the inclined slope surface is connected with the base and the top horizontal surface; the slope section system and the top section system are each of a grid structure, the grid system is composed of grids and stand columns, and each grid is vertically fixed by two stand columns; the vertical slope section system is arranged on the inclined slope surface, and the vertical top section system is arranged on the top horizontal surface. According to the anti-scouring system for the pile foundation of the offshore wind power, through a multi-layer grid structure, the water flow velocity is slowed down, and silt close to the bottom layer of a seabed is blocked; through the inclined slope surface of the three-dimensional supporting structure, the flow resistance is further increased, and the water flow speed is reduced; through the combination of the three-dimensional supporting structure and the grid structure, the seabed roughness is remarkably increased, the water flow speed is reduced, and the foundation anti-scouring purpose is achieved.

The invention discloses a roadbed filler compaction quality control method and system. The method comprises the following steps: acquiring compaction target information; drawing a dry density-mass moisture content relation curve graph according to the compaction target information; according to the dry density-mass moisture content relation curve graph, generating quality controllable data; and executing quality control operation through the quality controllable data. The method solves the problems that according to an existing compaction method and standard, the index values such as the mass moisture content, the dry density/compaction degree or the rigidity of compaction filler are controlled, the indexes cannot represent the unsaturated state, therefore roadbed design, compaction construction and normal service lack unsaturated soil theoretical correlation, it cannot be really and effectively guaranteed that the compaction characteristic meets design targets and service requirements such as post-construction volume change and water-force performance in the service period, space-time variability of compaction energy, filler physical states (types, gradation and the like) and the like in the field compaction process is not considered, and compaction quality evaluation indexes still need to be further improved.

The invention discloses environment-friendly pervious concrete and a preparation method thereof. The environment-friendly pervious concrete is prepared from cement, water, coarse aggregate, fine aggregate, an admixture, an additive, a coloring agent and thickening powder. The preparation method comprises the following steps: mixing the cement and the water and then stirring the mixture to be uniform to form cement paste; sequentially adding the coarse aggregate, the fine aggregate and the admixture into the cement paste in the step 1, and fully stirring and mixing to form an initial mixture; mixing an additive and a coloring agent together, adding the mixture into the initial mixture obtained in the step 2, and stirring and mixing the mixture to form a secondary mixture; putting the secondary mixture obtained in the step 3 on a concrete vibration table, and adding thickening powder to form a three-stage mixture; moving out the three-stage mixture in the concrete vibration table to formthe environment-friendly pervious concrete. In the invention, the reasonable coarse aggregate is selected and the fine aggregate is properly added, so that the preparation proportion of the environment-friendly pervious concrete is ensured, and the excellent pervious performance of the concrete is achieved.

The invention relates to the technical field of geological survey, in particular to a rapid pit digging device for geological exploration. The rapid pit digging device comprises a base plate, a fixed frame is fixedly installed at the top of the left side of the base plate, universal wheels are fixedly installed at four corners of the right side wall of the base plate, a top plate is arranged below the fixed frame, the top plate is fixedly connected to the base plate, connecting rods are fixedly installed at the four corners between the top plate and the fixing frame, connecting blocks are fixedly installed on the opposite side walls of the four connecting rods, guide rods are fixedly installed between the sets of connecting blocks and the fixing frame, and sliding plates are slidably installed between the four guide rods; an upper connecting cylinder is fixedly installed on the lower side wall of the sliding plate; and a connecting ring is fixedly installed at the bottom end of the upper connecting cylinder. Compared with the prior art, pits with different sizes can be drilled according to requirements, and the problem that the size of a pit drilled by a traditional pit digging device is fixed, and the requirement for digging the pits with different sizes cannot be met is avoided.

The invention provides a same-hole multi-slurry injection machine tool and a same-hole multi-slurry injection plugging method. The machine tool comprises a grouting head body, a grouting hard pipe andgrouting hoses; the grouting head body comprises two first grouting cylinder parts which are arranged side by side and a second grouting cylinder part, and one-way valve elements are arranged in thefirst grouting cylinder parts; a first transverse channel and a second transverse channel communicating the first transverse channel with the outside are communicated between the two first grouting cylinder parts, and a first temporary plug is arranged at the end, communicating with the outside, of the second transverse channel; a second temporary plug is arranged at the bottom of the second grouting cylinder part; the grouting hard pipe is communicated with the top of the second grouting cylinder part, and the grouting hard pipe is communicated with a hard pipe outer joint; and the grouting hoses are communicated with the tops of the first grouting cylinder parts, and hose outer joints are communicated with the grouting hoses. According to the same-hole multi-slurry injection machine tooland the same-hole multi-slurry injection plugging method, water stopping and leaking stoppage can be achieved rapidly, the soil body strength of a water stopping and leaking stoppage position can beimproved, the double-liquid grouting setting time is easy to master, and the grouting effect is good.

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 concrete pipe pile. The concrete pipe pile comprises a first pile body, a second pile body, an end plate and a pile cap, wherein each of the first pile body and the second pile body comprises a concrete layer and a steel wire mesh, the first pile body is fixedly connected with the end plate, a first longitudinal reinforcing rib and second longitudinal reinforcing ribs arewelded to the lower surface of the end plate, metal rods are welded to the first longitudinal reinforcing rib, stirrups are welded to the second longitudinal reinforcing ribs, the metal rods penetrate through the steel wire meshes, the tail ends of the metal rods are welded to the second longitudinal reinforcing ribs and the stirrups correspondingly, the metal rods and the stirrups form triangular shapes correspondingly, a metal plate is arranged on the second pile body, the metal plate is in threaded connection with the first pile body, angle iron is welded to the bottom surface of the metalplate, the pile cap comprises a rubber pad and a sleeve, and the rubber pad is a square rubber pad. The concrete pipe pile does not generate noise and is convenient to transport when the concrete pipe pile is constructed.

The invention discloses rock core sample storage equipment for geotechnical engineering exploration, and belongs to the technical field of civil engineering. The rock core sample storage equipment comprises a base, wherein the top surface of the base is fixedly connected with a support beam frame; a driving roller and a driven roller are rotationally connected between the inner surfaces of the support beam frame; the peripheral side surfaces of the driving roller and the driven roller are connected with two annular driving belts in symmetrical arrangement; a main driving motor is fixedly connected in a position, corresponding to the driving roller, on the surface of the support beam frame; one end of an output shaft of the main driving motor is fixedly connected with the driving roller; aset of storage mechanisms in equal-distance distribution is arranged on the surfaces of the two annular driving belts; and each storage mechanism comprises a positioning framework. Through the designof the annular driving belts and the storage mechanisms, the fixed storage structure of the conventional sample storage device is changed into a moving storage structure; through the moving storage structure, the arrangement position of the storage mechanisms can be fast changed; and through the fast change of the arrangement position, the fast taking and placing of the rock core samples can be convenient.