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467results about "Caissons" patented technology

Open caisson sinking control method based on dynamic balance of soil resistance field

The invention provides an open caisson sinking control method based on dynamic balance of a soil resistance field, which comprises the following steps of: judging whether an open caisson posture dynamic balance condition is met or not according to an open caisson bottom surface soil resistance vector field and an open caisson posture offset, if not, intervening space distribution of the open caisson bottom surface soil resistance vector field, and reconstructing the open caisson bottom surface soil resistance vector field; the dynamic balance condition of the open caisson posture is met; and based on the open caisson bottom surface soil resistance vector field, the height difference vectors of the adjacent bins on the open caisson bottom surface and the soil taking control matrix, a dynamic decision objective function is constructed, the objective function is solved, an optimal soil taking control matrix is obtained, and an actuator cluster is controlled to take soil from the bins on the open caisson bottom surface. According to the method, the influence of dynamic evolution of the soil resistance field of the bottom face of the open caisson on the open caisson attitude offset is considered, the soil resistance field is dynamically adjusted, the open caisson attitude is accurately controlled, and soil taking control is optimized.
Owner:THE THIRD CONSTR CO LTD OF CHINA CONSTR THIRD ENG BUREAU

Press-in type open caisson

PendingJP2025145604ACaissonsCaisson
To stably press a caisson in.SOLUTION: A cylindrical press-in type open caisson extending in the up-down direction includes a cutting edge provided at the lower end of the press-in caisson, a friction cut section provided on the entire outer surface of the press-in caisson at a predetermined height from the lower end and at a predetermined thickness from the outer surface outward, and multiple plate-shaped protrusion sections provided at predetermined intervals in the circumferential direction of the outer surface, at a predetermined width in the circumferential direction of the outer surface, at a predetermined height from the upper end of the friction cut section, and with a thickness less than the thickness of the friction cut section.SELECTED DRAWING: Figure 3
Owner:OKUMURA CORP

Permanent and temporary combined square block and caisson combined gravity type wharf and construction method thereof

A permanent-temporary combined square block and caisson combined gravity type wharf comprises a land area rear storage yard, a temporary prefabricating yard used for prefabricating square blocks and caissons is arranged on the land area rear storage yard, the temporary prefabricating yard is communicated with square block structural sections through caisson shipping channels, and the square block structural sections are arranged along the coast and serve as caisson temporary shipping wharfs. The caisson shipping channel is used for transporting prefabricated square blocks and caissons; and after the caisson is transported out through the caisson shipping channel and the square structure section, the caisson is arranged to be connected with the square structure section into a whole, and the caisson structure section wharf is formed. According to the wharf, a site does not need to be additionally found to serve as a prefabrication yard and a temporary wharf as a construction site, and the temporary shipping wharf and part of the prefabrication yard are combined permanently and temporarily, so that wharf construction and dismantling cost can be saved.
Owner:CHINA STATE CONSTR PORT ENG GRP

Open caisson sinking construction control method and system based on accurate sinking resistance detection

The invention discloses an open caisson sinking construction control method and system based on accurate sinking resistance detection. The open caisson sinking construction control method comprises the steps that an end resistance monitoring device and a side friction resistance monitoring device are pre-buried in an open caisson structure; in the sinking process of the open caisson, end resistance and side friction resistance data are collected; the data processing center dynamically calculates the real-time proportion of the end resistance and the total side friction resistance in the sinking total resistance, and analyzes the spatial distribution characteristics of the real-time proportion; based on the real-time proportion and the spatial distribution characteristics, the sinking state of the open caisson is intelligently judged, and the sinking state at least comprises normal sinking, end resistance type sinking difficulty, side resistance type sinking difficulty, inclination risk and sudden sinking risk; and according to the intelligently judged sinking state, a targeted control instruction is generated and output so as to control a sinking assisting system deployed on the open caisson to execute partitioned and graded resistance reduction or stable sinking operation. Real-time sensing, intelligent diagnosis and accurate active control of the sinking process of the open caisson are achieved, and the construction safety, efficiency and engineering quality are effectively improved.
Owner:HUBEI COMM PLANNING & DESIGN INST CO LTD +3

Steel open caisson supporting cushion device in deepwater environment

ActiveCN223535748UCaissonsCaissonCushion
The utility model provides a supporting cushion device for a steel open caisson in a deepwater environment. The supporting cushion device comprises a grouting capsule and a capsule flange, the capsule flange is connected between the open caisson and the grouting capsule; a connecting bolt hole, an internal thread grouting hole and an internal thread vent hole are formed in the side, facing the capsule flange, of the grouting capsule. The grouting pipe and the breather pipe respectively penetrate through the open caisson and the capsule flange and then are connected with the internal thread grouting hole and the internal thread air hole; the side, away from the grouting capsule, of the grouting pipe is connected with a grouting machine. And the grouting capsule is fixedly connected with the capsule flange through the connecting bolt hole.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1

Semi-prefabricated construction method for large deep-water caissons in shallow dock

PCT designated stageWO2026011694A1Climate change adaptationBridge erection/assemblyCaissonDry dock
The present application relates to a semi-prefabricated construction method for large deep-water caissons in a shallow dock. Concrete for a caisson base slab is poured in a dry dock, prefabricated slabs and steel trusses are mounted around the base slab to form an open box structure, then a box is towed to a bridge site, the construction of the caissons is completed by means of cast-in-place concrete pouring on the water, and finally the caisson is filled with water and sinks into place. The present application can greatly reduce the requirements for the excavation depth of the dry dock, and decrease the dredging workload of an undocking and floating channel, thereby reducing construction costs, and also facilitating shortening the construction period of the caissons.
Owner:ROAD & BRIDGE INT CO LTD

Modularized turnover double-wall steel hanging box structure and construction method

The invention discloses a modular turnover double-wall steel hanging box structure and a construction method, and relates to the technical field of steel hanging box structures, the modular turnover double-wall steel hanging box structure comprises a double-face wall body, an inner support and an outer communicating vessel, a plurality of guide devices are arranged on the inner wall of the double-face wall body, the inner support is arranged between the outer walls of the double-face wall body, and the outer communicating vessel is arranged between the inner support and the outer wall of the double-face wall body. An outer communicating vessel is arranged in the double-face wall body, an inner communicating vessel is arranged on the inner wall of the double-face wall body, a plurality of steel hanging box bottom plates connected with an inner support are arranged on the inner wall of the double-face wall body, hanging leg outriggers are arranged at the top ends of the steel hanging box bottom plates, bottom sealing concrete is arranged on the inner wall of the double-face wall body, and the bottom sealing concrete is arranged on the inner wall of the double-face wall body. According to the device, the process of installing the suspender is omitted, the overall truss inner support and the suspender are directly designed to be spliced with the steel suspension box into a whole in advance, the key line procedure is shortened, and the construction progress of the bottom sealing concrete is greatly accelerated.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD +1

Open caisson air curtain control method and device, electronic equipment and computer storage medium

The invention provides an open caisson air curtain control method and device, electronic equipment and a computer storage medium, is applied to an open caisson air curtain intelligent cooperative self-healing control system, and relates to the technical field of bridge construction. According to the method, a foundation open caisson structure model is established based on geological and hydrological data, then an air curtain and a monitoring module are added according to a specific construction project, real-time data communication between a real object and the model is established, data are monitored in real time through the monitoring module, and a control instruction is processed and output through the model; the opening and closing of the electromagnetic valves of all the subareas of the air curtain and the air pressure of the air compressor are adjusted in real time, the abnormal condition processing time in the sinking process of the open caisson is shortened, flexible combination of the multiple adjacent air curtain subareas is achieved, manual intervention is reduced in the construction process, and the construction progress is accelerated.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD

Deep foundation pit elevator shaft and sump nest support forming construction process

This invention relates to the field of deep foundation pit support construction technology, specifically a nested support construction process for deep foundation pit elevator shafts and sump pits. It solves the problem that traditional caisson waterproofing technology is prone to failure due to pit wall collapse in highly permeable gravel strata, making it difficult to create stable construction conditions. The process includes a steel caisson support structure, within which a steel caisson waterproofing structure is nested. This steel caisson waterproofing structure is used in conjunction with the steel caisson support structure for nested construction. This invention, through the nested cooperation of the steel caisson support structure and the steel caisson waterproofing structure, and the injection of a self-compacting concrete filling layer, achieves an integrated support and waterproofing effect during construction. It creates a stable, dry, and enclosed working space in easily collapsible, highly permeable strata, solving the problem of failure of traditional single waterproofing technology and creating safe and reliable conditions for subsequent structural construction.
Owner:BEIJING URBAN & RURAL CONSTR GRP CO LTD +1

Anti-inclination device for open caisson

The utility model relates to the technical field of open caisson construction equipment, and discloses an open caisson anti-inclination device which is arranged on a well body and comprises I-shaped steel arranged on the well body, a deviation rectification adjusting mechanism is arranged on the I-shaped steel and comprises a movable positioning assembly and a weight increment deviation rectification assembly, the movable positioning assembly is arranged at the lower end of the I-shaped steel, and the weight increment deviation rectification assembly is arranged at the lower end of the movable positioning assembly. The well cover is matched with the well body; and the weight increasing and deviation rectifying assembly is arranged at the upper end of the I-shaped steel and matched with the concrete plate. Through the arrangement of the movable positioning assembly, limiting and movement control can be removed conveniently, a rolling migration mechanism is formed, and reset locking of the dynamic I-shaped steel position is achieved; through the arrangement of the weight increasing and deviation rectifying assembly, limiting release and concrete plate loading, pressure self-balancing locking and anti-displacement guarantee can be achieved, and concrete plate sliding caused by construction vibration or load change is effectively restrained; the problems that a traditional deviation rectifying structure cannot dynamically adjust the position in a well in real time, and deviation rectifying hysteresis is prominent are solved.
Owner:SHAANXI NO 7 CONSTR ENG CO LTD

An emergency rescue high-bay bin caisson formwork structure

The utility model discloses an emergency rescue high bin grid caisson template structure, including caisson template mechanism, the caisson template mechanism includes a plurality of template frame that connects in proper order, and is connected through the bend connecting support between template frame, the both ends of bend connecting support with the both sides adjacent template frame between respectively through detachable connecting structure and connect, the bottom outside of template frame respectively detachable connection has bottom connecting beam, the both ends end of bottom connecting beam and the end of adjacent bottom connecting beam between through lock pull structure and lock, the caisson template mechanism still includes a plurality of setting between adjacent template frame's lock pull connecting support, lock pull connecting support will adjacent bottom connecting beam and draw tight, through above -mentioned structure realizes in the process of emergency rescue repair building construction, with high stability, high construction efficiency mode and pours the concrete construction, and the above -mentioned template structure prevents the high ability of inflation, and the stability, security of construction is high.
Owner:SINOHYDRO BUREAU 11 CO LTD

Caisson construction method

The invention relates to the technical field of underwater caisson construction, in particular to a caisson construction method. The underwater leveling machine is assembled and formed on the supporting platform, and the semi-submersible barge and the sea side of the supporting platform are berthed; the underwater leveling machine walks to the semi-submersible barge, and the underwater leveling machine is transported through the semi-submersible barge; the underwater leveling machine is separated from the semi-submersible barge and reaches the mounting area, and leveling operation is carried out; the semi-submersible barge is berthed with the side, close to the sea, of the supporting platform again, and the caisson is moved to the semi-submersible barge from the supporting platform; and the caisson is transported to the installation area based on the semi-submersible barge, and the caisson is installed. According to the caisson construction method, the supporting platform serves as a launching platform shared by the caisson and the underwater leveling machine, launching transportation of the underwater leveling machine can be carried out through an existing semi-submersible barge used for transporting the caisson in wharf construction by means of the walking capacity of the underwater leveling machine, and therefore cost does not need to be additionally input for hoisting the underwater leveling machine to be launched; therefore, the construction cost is effectively reduced.
Owner:CCCC FOURTH HARBOR ENG CO LTD +1

Underwater construction device for ultra-deep well and construction method thereof

The invention provides an ultra-deep well underwater construction device and a construction method thereof. The construction method comprises the steps that ground piles are driven around an open caisson, pulley assemblies are arranged on the ground piles, the open caisson and a concentric beam frame correspondingly, a steel wire rope passes through the pulley assemblies, and a hoisting mechanism is started to lower the concentric beam frame into the open caisson; the first sliding box and the second sliding box are arranged on the concentric beam frame, the first sliding box moves on the concentric beam frame through the driving mechanism and forms a pouring area, the pump pipes are lowered to the bottom of the open caisson, a drill bit below the pump pipes cuts a soil layer, and after cutting, the pump pipes are started to spray high-pressure water flow to clean sludge hung on the wall; the drill bit is changed into a one-way pipe valve to prevent water from entering the pump pipe, pouring and bottom sealing are conducted, the one-way pipe valve is changed into a pump head after bottom sealing is completed, water in the open caisson is pumped out, and the concentric beam frame is lifted to an open caisson opening through the hoisting mechanism to be disassembled. According to the construction method, dredging and bottom sealing construction can be achieved, the dredging walking route and the concrete pouring range do not interfere with each other, and the large pouring area can be effectively covered.
Owner:SHANGHAI MECHANIZED CONSTR GRP

A caisson pressure lifting and sinking control device and method

The application discloses a caisson pressure-lifting sinking control device and method, and relates to the technical field of caisson construction. The caisson pressure-lifting sinking control device comprises a supporting assembly, a pressure-lifting assembly for controlling sinking of a caisson segment is arranged on the supporting assembly; the pressure-lifting assembly comprises a downward pressing mechanism for pressing down the caisson segment and a lifting mechanism for lifting the caisson segment. The application can realize active adjustment of sinking timing, single sinking amplitude and sinking speed of caisson construction, changes sinking of the caisson from an uncontrolled mode to a controlled mode, improves sinking precision and safety of the caisson, and reduces engineering risk.
Owner:CHINA MCC5 GROUP CORP LTD

A method for reinforcing the formwork of a caisson cutting edge

This invention relates to the field of caisson construction technology and discloses a method for reinforcing the formwork of the cutting edge of a caisson, comprising the following steps: S1, construction preparation: according to the caisson design drawings, the diagonal bracing at the inner chamfer of the cutting edge is refined, fabricated in sections, and conventional materials are prepared; S2, foundation layer construction: first, the positioning lines of the foundation layer and the positioning holes of the diagonal bracing are located on the construction site. After the bearing capacity and flatness meet the requirements, the foundation layer is constructed; S3, diagonal bracing installation; S4, reinforcement and formwork installation; S5, concrete pouring and curing; S6, formwork removal and diagonal bracing removal. Using multi-layer bamboo plywood as formwork provides a smooth surface, light weight, and easy handling and installation, improving appearance quality and reducing labor intensity. Furthermore, after shaping, it conforms to the shape of the caisson, preventing grout leakage. The staggered joints allow the formwork to interlock, enabling coordinated stress distribution during pouring, enhancing the stability of the formwork system, reducing deformation, and ensuring the quality of concrete pouring and construction efficiency.
Owner:SHANGHAI BAOYE GRP CORP

Circular caisson resonance tank combined structure

This invention provides a circular caisson resonant pool combination structure, comprising an upper circular caisson, a lower circular caisson, and a resonant pool. The upper and lower circular caissons are stacked, with the resonant pool positioned on their rear sides. The wave-facing sides of both the upper and lower circular caissons are arc-shaped curved surfaces, and the top-view outline of the upper caisson overlaps that of the lower caisson. Along the wave-facing direction, the upper and lower circular caissons are staggered with the resonant pool. This invention, through its two-layer stacked circular caisson and resonant pool combination structure, achieves superior stress performance, reduces wave reflection, and significantly weakens wave energy accumulation through scattering, maintaining a stable harbor surface. Addressing the strong penetrating characteristics of medium- and long-period waves, the resonant pool allows the internal fluid to approach a resonant state, utilizing fluid viscosity and vortex structures to dissipate wave energy, further enhancing the wave-damping effect.
Owner:OCEAN UNIV OF CHINA

Vertical adjusting device for offshore steel open caisson

ActiveCN223607897UCaissonsJackscrewPipe
The utility model discloses a vertical adjusting device for an offshore steel open caisson, which is arranged on the wall of the steel open caisson at intervals along the perimeter direction of the steel open caisson. The device comprises a counter-force seat, a supporting column, a guide steel pipe, a temporary connecting piece, a jack and a supporting cushion assembly. The counter-force seat is fixedly connected to the top of the well wall of the steel open caisson; the guide steel pipe is vertically arranged below the counter-force seat and is fixedly connected with the wall of the steel open caisson; the supporting column is arranged in the guiding steel pipe in a penetrating mode and slides relative to the guiding steel pipe in the axial direction. The difference between the inner diameter of the guide steel pipe and the outer diameter of the supporting column is not larger than 15 cm, and the supporting column is limited in the radial direction. The top of the temporary connecting piece is connected to the counter-force base, and the bottom of the temporary connecting piece is connected with the supporting column so that the supporting column can be hung below the counter-force base. The jack is arranged at the top of the supporting column; the supporting cushion assembly comprises a first part; the first part is arranged at the top of the supporting column and staggered with the jack; and the first part is used for supporting the counter-force seat, so that the jack is unloaded.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1

River bottom super deep high water pressure shield maintenance and repulsion construction method

The application provides a kind of river bottom super deep high water pressure shield maintenance and re-pushing construction method, and relates to the technical field of shield construction.When shield machine is forced to stop during tunneling in river due to equipment failure, especially when serious failure such as disassembling cutter head or taking out bearings for maintenance occurs, sink well is sunk to design elevation, the soil between sink well and cutter head and the soil around shield is frozen and reinforced from sink well to shield direction, the portal is broken and the frozen soil in front of cutter head is removed by using underground excavation method, and annular lining is constructed, and shield machine is pushed into sink well from annular lining for maintenance and then launched for the second time;The application can provide safe working space for shield equipment maintenance in water bottom environment with water depth of more than 20 meters, so that it can re-tunnel, and the tunnel can continue construction.
Owner:CCCC TUNNEL ENG CO LTD +1

Method for correcting rotation and caisson structure

To provide a correction method of rotation of a caisson skeleton and a caisson skeleton in a pneumatic caisson method.SOLUTION: A correction method of rotation of a caisson skeleton 100 accompanied by sinking of the caisson skeleton 100 in a pneumatic caisson method includes: a tensioning step in which a tendon 110 provided at an outer periphery of the caisson skeleton 100 gives tensile force T in a direction correcting rotation; and a correction step of correcting rotation of the caisson skeleton 100 by the tensile force T when the caisson skeleton 100 sinks.SELECTED DRAWING: Figure 4
Owner:NISHIMATSU CONSTR CO LTD +1

A sacrificial pile group, a sacrificial pile and a sacrificial pile group positioning method

This application discloses a sacrificial pile group, sacrificial piles, and a method for positioning the sacrificial pile group, belonging to the field of bridge foundation protection and water flow control technology. The sacrificial pile group is located on the upstream side of the bridge pier and consists of a guiding zone far from the pier and a return flow reflection zone adjacent to the pier. A kinetic energy dissipation zone is formed between the two zones. Through flow diversion, return flow counter-current, and turbulent collision, the kinetic energy of the water flow is dissipated step by step, suppressing downflow and horseshoe vortices around the pier, and synergistically mitigating scouring and erosion of the pier foundation. The sacrificial pile is a cylindrical structure with openings along the water flow direction, which can divide the incoming flow and suppress turbulent superposition. The openings use non-uniform cross-section flow channels to accelerate the water flow. Multiple sets of openings can be set to adapt to water level fluctuations, and active thrust components such as shaftless pumps can be integrated to form a combined active and passive flow control structure. The sacrificial pile adopts a modular combination design of fixed sections, pile body sections, perforated sections, and pile top sections, which is convenient to connect and highly versatile. The positioning method uses prefabricated land-based positioning and bearing reference components as a unified platform. After precise placement of connectors, the entire pile group is sunk into place, achieving high-precision positioning and stable installation. This application offers high protection efficiency and strong adaptability to various working conditions, effectively improving the erosion and abrasion resistance of bridge foundations and reducing operation and maintenance costs.
Owner:GANSU JINQIAO HIGHWAY ENGINEERING CO LTD

Apparatus for preventing rocking of box and method for installing box in water

To provide a device for preventing rocking of a box body and a method for installing the box body in water, capable of reducing labor required for work for installing a storage body in the box body and work for removing the storage body from the box body.SOLUTION: A housing body 2 having a bottom surface 3 and a peripheral wall 5 formed of a waterproof sheet is installed on a box body 50 having a hollow part 51, and a fluid Wb is housed in a non-filled state in an area partitioned by the bottom surface 3 and the peripheral wall 5 for constituting the housing body 2. When the box body 50 in a state of floating on the water is oscillated and inclined, the box body 50 is moved downward and installed at a prescribed position in the water by injecting water Wa into the hollow part 51 while suppressing the oscillation of the box body 50 by making the fluid Wb flow toward the lower side in the inclination direction of the box body 50 inside the housing body 2.SELECTED DRAWING: Figure 1
Owner:TOA KENSETSU KK +1

Measurement and control method and system for underwater sinking pipe butt joint

The invention provides a measurement and control method and system for underwater immersed tube butt joint. The method comprises the following steps that optical, mechanical and inertial multi-source sensor data and the like in the immersed tube butt joint process are synchronously collected; and when the optical beacon is shielded, the position of the optical beacon is repaired through inverse dynamic estimation. Performing time-frequency analysis on the multi-source data, and separating the multi-source data into a motion main signal and a noise signal; the motion main signal is input into a motion state filter, and the noise signal is input into a noise state model filter to identify comprehensive noise features in real time. The core step is to generate a feed-forward compensation item based on the noise characteristics, and the feed-forward compensation item is used for correcting the updating process of the motion state filter so as to eliminate the noise influence in advance and output the optimal pose estimation. And finally, generating a smooth control instruction based on the optimal pose. The method has the effect of improving the butt joint precision of the immersed tubes in the underwater complex environment.
Owner:WUHAN NORTH & SOUTH POLE SURVEYING & MAPPING GEOGRAPHIC INFORMATION CO LTD

Adjustable open caisson excavation positioning device

The utility model discloses an adjustable open caisson excavation positioning device which comprises a bottom plate, and positioning pins are fixed to the bottom of the bottom plate at equal angles. A pipeline penetrates through the middle of the bottom plate in a sliding mode, a first motor is fixed to the outer end of the bottom plate, a threaded rod is in key connection with the inner end of the first motor, the threaded rod is connected into the bottom plate through a bearing, a moving plate is in threaded connection with the threaded rod, and a second motor is fixed to the top of the inner end of the moving plate. And the output end of the second motor is connected with the friction belt, and the inner wall of the friction belt is attached to the outer wall of the pipeline to form a limiting mechanism. The adjustable open caisson excavation positioning device is provided with the threaded rod, the threaded rod can be driven to rotate through the first motor, then the threaded rod can drive the moving plate to move, rapid adjustment can be conducted according to pipelines of different sizes, and therefore re-adjustment is avoided, and the use convenience is improved.
Owner:HENAN ANGANG GRP ENG MANAGEMENT CO LTD +2

A removable round assembled precast caisson and construction method

The application discloses a removable circular assembled prefabricated well and a construction method thereof, and belongs to the technical field of well construction. The prefabricated well comprises a prefabricated well shaft which is formed by annularly splicing a plurality of longitudinally arranged supporting columns, the supporting column comprises a superposition part and a blade foot part, the superposition part is fixedly installed by connecting a plurality of superposition splicing blocks in an up-down mode, and the blade foot part is fixedly installed at the lower end of the superposition part. At least one longitudinal grouting hole is arranged in the middle of the superposition splicing block, and flow guide holes are arranged on the inner and outer sidewalls of the superposition splicing block and are communicated with the grouting hole. The prefabricated well is assembled on the ground, is sunk by using the well sinking method, is pulled out after backfilling in the prefabricated well shaft is completed, and the time for cast-in-situ production of the well is greatly shortened. Meanwhile, the prefabricated well is sunk by using the well sinking method, and can adapt to different geological requirements. After the construction is completed, the removable characteristic solves the problems of difficulty in removing the cast-in-situ well, occupation of underground space and waste of resources.
Owner:YANGTZE ECOLOGY & ENVIRONMENT CO LTD

Excavation robot for caisson construction, caisson construction system, and caisson construction method

Provided are a digging robot, a caisson construction system and a caisson construction method. The digging robot comprises a base installed on a fixed position in a shaft structure, a support assembly and a movable arm. The support assembly is installed to the base and can rotate relative to the base about a first vertical axis. The movable arm is installed to the support assembly and can rotate relative to the support assembly about a second vertical axis. The second vertical axis is parallel to the first vertical axis and is spaced apart from the first vertical axis by a predetermined distance. The movable arm can also swing relative to the support assembly about a first horizontal axis. The end of the movable arm is provided with a digging part configured to dig soil in the shaft structure within a predetermined contour in response to the digging robot running a predetermined program. According to the scheme of the present application, the digging robot is suitable for undrained construction, is flexible to operate, can adapt to shafts with any cross-sectional shape, and the frequently moving parts have small weight, which can slow down wear and tear and prolong service life.
Owner:朱瑶宏

Construction method of prestressed tension cast-in-place integral open caisson

PendingCN121781618ACaissons
The invention relates to a prestress tension cast-in-place integral open caisson construction method which comprises the steps that a foundation pit is excavated in a preset area, a bottom layer well body is arranged in the foundation pit, a steel strand penetrates into a threading pipe of a lower open caisson body, and the prestress tension procedure is executed; the open caisson structure is controlled to gradually sink by a corresponding depth size; and the steps of lower open caisson body manufacturing and open caisson structure sinking are repeatedly executed till the open caisson structure reaches the preset design depth, the reinforcement cage of the lower open caisson body of the upper layer is connected to the lower open caisson body of the lower layer through the connection mechanism, and at least one machinable area is reserved in the preset area of the open caisson structure. The open caisson structure is cast in place, and the requirement for the construction site area is lowered. The open caisson structure forms tensioning prestress through the steel strands, and the supporting force of the open caisson structure on surrounding soil is improved. The preset area of the open caisson structure forms a machinable area, so that tunneling equipment can conveniently tunnel into a soil body from the machinable area in the later period.
Owner:NINGBO YONGGONG TECHNOLOGY CO LTD

Fabricated open caisson sinking device

The utility model discloses a fabricated open caisson sinking device, and relates to the technical field of open caisson construction. The assembly type open caisson sinking device comprises a sinking supporting seat, a sinking supporting column which extends upwards is hinged to the sinking supporting seat, the sinking supporting column is further connected with the sinking supporting seat through a luffing mechanism, the sinking supporting column is provided with a pressing mechanism used for pressing a segment ring, and the pressing mechanism is provided with a leveling mechanism used for leveling the segment ring. According to the assembly type open caisson sinking device, the installed pipe piece ring can be leveled through the leveling mechanism, the situation that the pipe piece ring inclines is avoided, and it is guaranteed that the sinking track of the pipe piece ring does not change; the pipe piece ring can be downwards pressed to sink by utilizing the pressing mechanism; the amplitude changing mechanism can drive the sinking supporting column to drive the downward pressing mechanism to incline in the direction away from the segment ring, so that the downward pressing mechanism is moved to the outer side of the segment ring, the subsequent segment ring can be directly hoisted in place on the installed segment ring, and then the construction efficiency is improved.
Owner:CHINA MCC5 GROUP CORP LTD

Open caisson real-time attitude monitoring system and method based on hydraulic communication principle

The invention discloses an open caisson real-time posture monitoring system and method based on the hydraulic communication principle, and belongs to the field of open caisson posture monitoring. The open caisson real-time posture monitoring system based on the hydraulic communication principle comprises an open caisson body, and open caisson inner sensors located at the same height are arranged in the open caisson body; an earth surface reference sensor, a liquid storage tank and data recording and processing equipment are arranged on the open caisson body, the open caisson inner sensors are used for collecting water pressure data of the same height in the open caisson, and the liquid storage tank communicates with the earth surface reference sensor and the open caisson inner sensors through liquid transmission pipelines. And the earth surface reference sensor and the in-open caisson sensor are connected with the data recording and processing equipment through data lines. According to the open caisson real-time attitude monitoring system and method based on the hydraulic communication principle, the problems that in the prior art, precision is low, arrangement is complex, the anti-interference capacity is weak, maintenance is difficult, and manual guarding is needed can be solved.
Owner:SOUTH CHINA UNIV OF TECH

Suction caisson foundation

ActiveCN115596002BWind energy generationCaissonsSuction forceSuction caissons
The present application relates to the field of floating offshore wind turbine anchoring technology, and particularly relates to a suction caisson foundation, the suction caisson foundation comprising a pipe body, a guide pipe and a support component, one end of the guide pipe being connected with the pipe body, the guide pipe extending along the height direction of the pipe body, the support component comprising a first pipe and a second pipe, one end of the first pipe being sleeved on the guide pipe, and the first pipe being movable on the guide pipe along the height direction of the pipe body, the other end of the first pipe being pivotally connected with one end of the second pipe, the other end of the second pipe being pivotally connected with one end of the pipe body inserted into the soil body. The suction caisson foundation can improve the vertical and horizontal bearing capacity and facilitate the installation of the suction caisson foundation.
Owner:HUANENG (ZHEJIANG) ENERGY DEV CO LTD +1

Gravity-Based Structure (GBS)

The present invention is applicable to hydroelectric power plants and can be used to assemble production, transportation, transshipment and warehousing complexes for various applications in coastal and offshore locations. The GBS has rectangular top and bottom slabs 2, 4 and outer and inner vertical walls for separating it into compartments. The GBS has a central portion 1 and protruding portions 3. The central portion 1 of the GBS is shaped as a rectangular prism with said top slab 2. The GBS protruding portions 3 extend along both sides of the central portion 1 all around its periphery and have vertical outer walls 5. The protruding portions 3 and the central portion 1 share a bottom slab 4 and the protruding portion 3 is of lower height than the central portion 1. The central portion 1 has inner vertical longitudinal and transverse walls 5 forming compartments 6, 7 and the protruding portion 3 has inner vertical walls 5 perpendicular to its outer walls and forming compartments 15 from its short ends and forming ballast compartments 8 on both sides. Vertical longitudinal and lateral walls forming additional compartments 20 are located between the intermediate horizontal slab 13 and the bottom slab 4. The new GBS design is suitable for transportation through shallow water depths and adapted for arctic conditions and ice impacts.
Owner:PUBLICHNOE AKTSIONERNOE OBSHCHESTVO NOVATEK