37results about "Artificial islands" patented technology

The present invention relates to an arrangement in a floating drilling and intervention vessel, for controlling a heave compensated drill floor 7 suspended in drill floor compensator cylinders 10. Below the compensated drill floor 7 there is installed a tidal structure (3) suspended in tidal cylinders 2 or wires 25. By adjusting the tidal cylinders 2 or the wires 25 in step with the tide 17 it is achieved that the drill floor compensator cylinders 10 can operate around their middle position regardless of the tide lifting or lowering the vessel 16.

This invention relates to the field of treating subterranean formations to increase production. The method of the current invention is particularly useful in hydrocarbon wells that are long, for example, in excess of one kilometer. The method providing increasing production from a primary wellbore by intersecting this wellbore with a secondary wellbore near to the hydrocarbon production zone such that acid treatment or other treatment can be directed to the intersection.

The invention relates to a device and a method for monitoring the subsidence of a jacket platform based on inclination angle monitoring, which belong to the technical field of monitoring of jacket platforms. The device comprises inclination angle sensors, transmission wire cables, a data acquisition mechanism and a host monitor, wherein the inclination angle sensors are connected with the data acquisition mechanism which is connected with the host monitor; and spud legs and cross beams between the spud legs are arranged on the jacket platform, and the inclination angle sensors are installed on the cross beams of the jacket platform. In the method, the inclination angle sensors are arranged on the cross beams of the jacket platform, the host monitor acquires inclination angle signal data of the inclination angle sensors on the jacket platform in real time through the data acquisition mechanism, and the comparative analysis is carried out on the inclination angle signal data and a preset value for monitoring the subsidence of the jacket platform. The device and the method have the advantages of convenience in monitoring, real-time on-line monitoring, quick response, accurate data, graded pre-warning, security, reliability and the like.

The invention discloses a bolt type hydraulic lifting system and belongs to the technical field of marine tools. The system is characterized in that multiple columns of bolt holes are formed in a pile leg, and a fixed ring beam and a movable ring beam are sequentially arranged in the axial direction of the pile leg from top to bottom; multiple first bolt assemblies are arranged on the fixed ring beam, and multiple second bolt assemblies are arranged on the movable ring beam; the two ends of each lifting cylinder are correspondingly connected with the fixed ring beam and the movable ring beam; the fixing ends of multiple balancing cylinders of the system are hinged to a fixing frame, and piston rods of the balancing cylinders are hinged to the fixed ring beam; and accumulators of the system correspondingly communicate with rod chambers of the balancing cylinders and rodless chambers of the balancing cylinders. By the adoption of the bolt type hydraulic lifting system, the service life of the bolt assemblies can be prolonged.

The invention discloses an all-directional wedge-shaped pretension sound-proof well lid, comprising a round well base and a cover board. Three locations of the well base internal ring are uniformly set with bidirectional wedge-shaped convex plates convex towards the central direction of the well base. The back of the location of the cover board corresponding to the well base convex plates is set with bidirectional wedge-shaped projections. Each bidirectional wedge-shaped projection is connected with the cover board by an elastic member. The bidirectional wedge-shaped convex plates of the well base have smaller upper slope and larger lower slope. The bidirectional wedge-shaped projections of the cover board have smaller lower slope and larger upper slope. The upsides of the bidirectional wedge-shaped projections of the cover board are compatible with the lower sides of bidirectional wedge-shaped convex plates of the well base. And the cover board is fixed firmly on the well base by the pretension from circumferential and vertical directions. The invention can prevent the cover board from jumping and displacement when being rolled and impacted by automobile and avoid the impact noise of the cover board to the well base.

The invention discloses a pile shoe structure for a self-elevating drilling platform. The structure comprises a pile shoe body, a cone point, and a center pipe positioned in the center of the pile shoe body; the cone point is an inverted frustum structure, is positioned in the bottom center of the pile shoe body, and coats the center pipe; the pile shoe body consists of a first pile shoe component, a second pile shoe component and a third pile shoe component; the second pile shoe component and the third pile shoe component are substantially the same with the first pile shoe component in structure; and the unique different point is that the third pile shoe component further includes a trunk channel. Compared with the prior art, the pile shoe structure is averagely divided into three parts with substantially identical structures, and the three parts all use plane structures, so that the pile shoe manufacturing difficulty is reduced; and meanwhile, the cone point is designed to enhance the antiskid capacity of the self-elevating drilling platform.

The invention discloses a liaison channel under airport taxiways, characterized in that it adopts a box body structure, and three-shaft cement blending piles are arranged in the groundsills under the airport taxiways below the box body structure and in the 20m-40m range on its two sides, there are attachment straps on its two sides, and the attachment straps are connected with the groundsills on its two sides, provided with three-shaft cement blending piles. In the specific engineering environment of airport, it reinforces the groundsills by three-shaft cement blending piles and can assure the strict differential settlement requirements of the airport.

The invention discloses a construction method based on a box-drum-type pile stabilizing platform. The construction method comprises the following steps that sequentially, the pile stabilizing platformassembled by a box drum, a steel pipe, a fixed truss and a moving truss is dragged to a construction site, synchronous and identical-speed air pumping is conducted on the box drum for fixing the pilestabilizing platform, the moving truss is lifted upwards to above the surface of the water and then fixed, a piling frame and a pile holding device are mounted on the moving truss, and a steel pipe pile with the large diameter is hoisted into the pile holding device; and an ejecting device on the pile holding device is used to adjust the perpendicularity, the steel pipe pile with the large diameter enters into the stable state after sinking into mud, pile sinking is conducted to the design elevation position, the pile stabilizing platform is moved, and the processes are repeated until the construction is completed. The construction method based on the box-drum-type pile stabilizing platform is simple in operation, the pile stabilizing platform adopted in the construction process is simplein structure, the horizontal carrying capacity and construction efficiency of the box-drum-type pile stabilizing platform are greatly improved, the construction quality of the steel pipe pile with the large diameter can be further ensured effectively, and the construction method is suitable for the construction of the steel pipe pile with the large diameter under different water depth and geological conditions.

The invention relates to the field of prefabricated building components, and particularly discloses fabricated cantilever retaining walls. The fabricated cantilever retaining walls comprise at least two prefabricated retaining walls and a plurality of prefabricated soil-retaining parts; the fabricated cantilever retaining walls comprise upright walls and bases arranged at the lower ends of the upright walls; the two side faces in the thickness directions of the upright walls are correspondingly provided with clamping grooves in vertical and downward modes; and the prefabricated soil-retainingparts are clamped to the clamping grooves of the adjacent upright walls. According to the fabricated cantilever retaining walls and a construction method of soil-retaining of the fabricated cantileverretaining walls, by the prefabricated retaining walls and the prefabricated soil-retaining parts, the prefabricated soil-retaining parts are clamped between theadjacent prefabricated retaining walls,construction of the cantilever retaining walls can be finished in a efficient, economic, and quality and quantity assured mode.

A building construction method adopting stepwise implementation of forward construction and reverse construction comprises the following steps: S1, carrying out the reverse construction on vertical support members of a peripheral reverse construction area; S2, using the reverse construction method to carry out construction in the peripheral reverse construction area and manufacture horizontal support members of structural beams and slabs, so that a closed-loop horizontal support system is formed on the periphery of a main building; S3, reserving back pressure earth in the peripheral reverse construction area according to pit deformation requirements, and carrying out excavation on a main building area to reach a base through multistage sloping; and S4, carrying out the forward constructionon a main building area structure, and simultaneously carrying out upward construction on the main building and downward reverse construction on an underground structure of a reserved earth sloping area on the periphery of the main building after beam and slab structures of different floors, which are achieved through the forward construction of the main building, are integrated with beam and slab structures of the different floors, which are achieved through the corresponding peripheral reverse construction. The method provided by the invention has the advantages that the temporary support engineering amount can be greatly reduced, the excavation efficiency can be improved, and the construction progress can be greatly accelerated; and in the peripheral reverse construction stage, a large-space opening in the main building forward construction area is achieved, so that the ventilation and daylighting conditions of underground construction can be remarkably improved.

The invention discloses a composite structure with bracing soldier piles and a basement exterior wall overlapped and a construction process of the composite structure. The bracing soldier piles are arranged in a column manner at equal intervals and are closely attached to the outer side of the basement exterior wall, after concrete is poured into the clearances between embedded horizontal reinforcement in pile bodies of the bracing soldier piles and the soldier piles, a continuous overall pile wall is formed, and a shear force groove is formed in the pile wall. After the surface of the pile wall is scabbled and cleaned up, the bracing soldier piles and the basement exterior wall are connected to form overlapped connection through the shear force groove in the pile wall and reinforcement connectors in the bracing soldier piles, and thus the composite structure for resisting external water and soil pressure together is formed. According to the composite structure, the horizontal stiffness and bending resistance of the bracing soldier piles can be fully utilized, the bracing soldier piles and the basement exterior wall are combined, so that a temporary bracing structure becomes one part of a permanent underground main structure, then stress of the basement exterior wall is relieved, the thickness of the basement exterior wall is reduced, the usable area of a basement is increased,and social resources are saved.

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 provides construction equipment of a highway well lid peripheral concrete anti-cracking device, and belongs to the technical field of highway construction. The construction equipment ofthe highway well lid peripheral concrete anti-cracking device comprises a rack main body, a rotating assembly, a horizontal assembly, an angle assembly and a drilling and milling assembly, and is characterized in that a power head provides main drilling and milling power, a rotary worktable is fed at a low speed, vibration generated by high-speed rotation of equipment is reduced, the impact on concrete is mitigated, the cracking is reduced, the angle assembly adjusts the milling angle, a well lid mounting pit groove side wall inclined plane and a pit slot bottom boss are synchronously processed, concrete cracking caused by later polishing of an inclined plane angle is reduced, a vertical milling cutter divides the road well lid mounting groove, damage to the well lid mounting groove causedby subsequent hollowing is avoided, the risk of concrete breaking is reduced, one-time clamping and synchronous machining are achieved, the machining efficiency of the well lid mounting groove is improved, the risk of cracking of concrete around a well lid is reduced at the same time, road maintenance is more convenient, and the road maintenance quality is higher.

The invention discloses an adjustable conveying belt muck discharging method for a high-slope-ratio entrance and exit channel. Aiming at urban underground excavation subway stations complex in geological condition and peripheral pipelines, construction safety can be ensured better by excavating entrances and exits downwards, the construction risk is reduced, but if the entrances and the exits are subjected to downward excavation construction, muck is difficult to transport. According to the adjustable conveying belt muck discharging method for the high-slope-ratio entrance and exit channel, the problem that downward excavation construction of the entrances and the exits of a subway station is difficult to conduct is effectively solved by introducing an adjustable conveying belt; during construction, the problem that the high-slope-ratio entrance and exit channel is difficult in muck discharging is solved emphatically from the aspects of conveying belt type selecting, designing, machining, field installing, using and the like, and valuable experience is provided for downward excavation construction of more and more high-slope-ratio entrances and exits in the future; and through practice testing, the adjustable conveying belt muck discharging method is feasible, and the industrial problems which cannot be solved through existing technologies are solved.

The invention specifically discloses a connection joint structure of a prefabricated sandwich side wall and a prefabricated laminated bottom plate and a construction method of the connection joint structure of the prefabricated sandwich side wall and the prefabricated laminated bottom plate. The connection joint structure comprises the prefabricated sandwich side wall arranged vertically and the prefabricated laminated bottom plate arranged horizontally below the prefabricated sandwich side wall, the prefabricated sandwich side wall includes an internal prefabricated plate and an external prefabricated plate, the internal prefabricated plate and the external prefabricated plate are connected through an erection truss between the internal prefabricated plate and the external prefabricated plate, and a horizontal water-stop steel plate is arranged in the middle of the bottom of the prefabricated sandwich side wall; embedded and extending U-shaped steel bars are arranged at both ends of the prefabricated laminated sandwich side wall, the U-shaped steel bars are arranged in a staggered mode in the height direction, and vertical stressed steel bars are arranged on the inner sides of theU-shaped steel bars; the prefabricated laminated bottom plate is a single-layer prefabricated plate, erection bars are arranged on the upper part of the prefabricated laminated bottom plate, and externally-extended L-shaped steel bars are arranged near the end parts of both ends of the side wall; and L-shaped reinforcing ribs are arranged at the corners of a joint of the prefabricated sandwich side wall and the prefabricated laminated bottom plate. The joint with a simple structure, reliable connection, reasonable stress and simple and convenient construction is provided, so that the overallstress performance of the connection joint structure is more superior.

The invention belongs to the technical field of underwater pipeline construction and especially relates to a sludge river channel water taking pipeline installation method. The method fills the blankof water taking pipeline installation in narrow river channels, and high pressure water is creatively utilized to solve the sludge problem of high-sensitivity high-rheological-property foundations; inaddition, the method cannot damage primal environment on the both shores of the river channels, so that the method is worth popularizing.

The invention discloses a pipeline laying and concrete structure in a high-fall pipe well and a construction method, and aims to solve the problem that a high-fall vertical shaft is small in space and personnel cannot enter the vertical shaft to install a pipeline and guarantee the safety of the personnel, the welding quality of the pipeline and the feasibility of a test scheme in the pipeline installation process. The structure comprises an upper equipment room, a lower equipment room, a high-fall vertical shaft and a plurality of water supply and drainage steel pipes, the water supply and drainage steel pipes are vertically arranged in the high-fall vertical shaft, and a backfill concrete structure is arranged in the high-fall vertical shaft. The construction method comprises the steps that firstly, an upper-layer equipment room and a lower-part equipment room are excavated, and a high-fall vertical shaft is excavated; hoisting water supply and drainage steel pipes; and the excavated high-fall vertical shaft is subjected to segmented concrete backfilling. When the fall of the pipe well exceeds a certain height, the pipe well can be divided into several sections of high-fall pipe wells, and similar or identical pipeline laying and concrete structures and construction methods are arranged.

The invention relates to the technical field of offshore platforms, in particular to a building method for an offshore platform. The building method for the offshore platform includes the steps that auxiliary equipment is installed on a to-be-hoisted pile leg section on a base face; the pile leg section and the auxiliary equipment which are assembled together are hoisted to the top of a former pile leg section; and the bottom end of the pile leg section and the top end of the former pile leg section are installed and fixedly connected. Through application of the method, the auxiliary equipment is installed on the corresponding to-be-hoisted pile leg section on the operating base face, and then the pile leg section and the auxiliary equipment which are fixedly connected are integrally hoisted and installed. Compared with an installation method in the prior art that one pile leg section is hoisted to a high position higher than the base face and the auxiliary equipment is installed on the pile leg section at the high position, the operating convenience and efficiency of the building method for the offshore platform are remarkably improved.

The invention discloses a convenient to clean inspection well and relates to the technical field of inspection wells. The convenient to clean inspection well comprises a well foundation, a well bottom, a well body, a well lid base and a well lid, wherein a first sieve plate and a second sieve plate are fixed in the well body; the mesh of the first sieve plate is smaller than that of the second sieve plate; one end of the well body is fixedly connected with the top end of the well bottom through a connecting piece and a bolt; a plurality of first bulges, a plurality of second bulges and a plurality of sliding rails are uniformly fixed on the inner surface of the well body in an annular shape; the first bulges are positioned above the second bulges; and the first bulges, the second bulges and the sliding rails are distributed at intervals. According to the convenient to clean inspection well, the first sieve plate and the second sieve plate are arranged for screening, so that the situation that the well is blocked when larges-scale garbage, or pebbles or excessive sandy soil falls into the well is avoided; and through arranging a rectangular sliding block, a penetrating notch, a rectangular groove, a retaining ring, a safe hook, a nylon rope, a blocking ring and a flow guiding ring, the problems that the existing inspection well is likely to block and is inconvenient to clean aresolved.

The invention provides a soil retaining structure suitable for eliminating a frost heaving effect in a cold region and a construction method. The soil retaining structure comprises a slope protection backfill material, an EPS-containing mixed structure, a wall heel clay layer, a retaining wall, a drainage hole, a rigid pull rod and an anchoring plate; a through drainage hole is formed in the upper portion, the middle portion and the lower portion of the retaining wall body; the backfilling structure for eliminating the frost heaving effect is tightly attached to the wall back; the left ends of the rigid pull rods are embedded into the retaining wall, and the right ends of the rigid pull rods transversely penetrate through the EPS light soil to be connected with the anchoring plate in the soil embedded behind the wall; and the construction method comprises the following steps of construction preparation, foundation trench excavation and construction working face building, construction of the retaining wall and the backfill structure behind the wall, construction of the rigid pull rod and construction of the EPS-contained mixed structure. The structure is suitable for soil slope reinforcement engineering or high fill engineering needing to reduce or eliminate the frost heaving effect in infrastructure construction in the cold region, and has the advantages of being simple in structural form, easy and convenient to construct and low in engineering cost.

The efficient well lid dismantling device comprises a stand column, a rotating column is rotationally connected to the rotating middle of the bottom end of the stand column, five rotating plates are slidably connected to the middle of the bottom end of the outer surface of the rotating column at equal intervals, and an electric telescopic column is welded to the middle of the top end of each rotating plate; a pentagonal strip plate is welded to the top end of an electric telescopic column, a cutting, crushing and taking mechanism is installed in the middle of the inner wall of one rotating plate, a crushing rotating disc and an outer cutting disc can rotate conveniently through a crushing rotating motor in the cutting, crushing and taking mechanism, and the rotating difficulty of the outer cutting disc and an inner cutting disc is reduced; and meanwhile, through cooperation of an inner cutting disc, an outer cutting disc, a hydraulic rod, a threaded rod and a connecting piece, the asphalt pavement on the edge of the well lid can be conveniently cut, the cutting difficulty of the asphalt road side is lowered, the cutting difficulty of the edge of the asphalt pavement of the well lid in the prior art is lowered, and meanwhile the phenomenon that the cutting discs make contact with the well lid is prevented.