62results about "Caissons" patented technology

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.

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.

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.

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.

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.

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.

This invention relates to the field of caisson bottom sealing construction technology, and discloses a dynamic sealing sludge and water inrush sealing system for caissons. The system integrates a bottom sealing template assembly, a dynamic sealing baffle, a novel quick-setting sealing grout injection assembly, a drainage and pressure relief assembly, a fixing and anchoring assembly, and an anti-sludge isolation assembly. The bottom sealing operation is completed through an integrated process of layered sealing, immediate curing, and simultaneous bottom sealing. During construction, the base is first cleaned and the components are installed; after the dynamic sealing baffle is deployed, it is hydraulically attached to the base plate and the water inrush point is detected; then, quick-setting grout is injected into the leakage area in a targeted manner, and drainage and pressure relief are simultaneously activated to regulate the pressure; after the grout has quickly set, the baffle is retained as a permanent water-stopping structure; finally, underwater concrete is continuously injected through a pre-set pipeline, and an anti-sludge isolation layer is set to ensure the density of the concrete. This system simultaneously achieves rapid water inrush sealing, dynamic pressure balance, and high-quality bottom sealing, solving the problems of poor sealing time, poor process connection, and difficulty in controlling the quality of underwater concrete in traditional processes.

To more accurately grasp an amount of filling material to be introduced during caisson installation work than when using a water pressure gauge, distance meter, etc.SOLUTION: Water W and a filling material R introduced into a space S press the optical fiber sensor 1 installed in the space S. As a result, the optical fiber sensor 1 receives pressure at a portion in contact with the water W and a portion in contact with the filling material R. Then, a monitoring device 2 specifies the magnitude of the pressure that the optical fiber sensor 1 receives and the position where the pressure is received. Thereby, the monitoring device 2 monitors the force that the space S receives from the water W or the filling material R.SELECTED DRAWING: Figure 7

The utility model discloses a spliced steel sinking well, the spliced steel sinking well includes a plurality of prefabricated steel pipe piece monomer, the plurality of prefabricated steel pipe piece monomer splices and connects and encloses the cylindrical structure, and the connecting piece is connected or welded connection between two adjacent steel pipe piece monomers. The utility model makes steel sinking well can be transported and installed in pieces, and the installation and transportation are convenient, and simultaneously can adapt to the foundation pit of different size through the size of monomer and spliced quantity adjustment, saves the customization cost, and reduces the customization period.

The application discloses a sinking well with adjustable sinking friction, which comprises a well body, an adjusting shell arranged outside the well body, a synchronous wheel arranged on the adjusting shell, and a self-adapting adjusting device arranged in the adjusting shell. The synchronous wheel comprises a first synchronous wheel and a second synchronous wheel. The first synchronous wheel and the second synchronous wheel are synchronously rotated by being installed around the adjusting shell, so that the speed of the well body is ensured to be the same during sinking, and the problem that the sinking amount of different parts is deviated during the sinking well construction, so that the posture of the sinking well is deviated, even cannot sink or suddenly sinks, is avoided. The self-adapting adjusting device is arranged in the adjusting shell, and when the posture of the well body is deviated, the self-adapting adjusting device replaces the synchronous wheel on one side of sinking, is fixed with the inner wall of the well, and the other side of the well body is sunk until the posture of the well body is corrected. The posture of the well body is controlled by pure mechanical control, compared with the electric drive control by a data collector in the prior art, so that maintenance is simple, and the price is relatively low.

An apparatus (33) for installing a wellbore beneath a body of water comprising a support structure (10, 72), a tubular (22) mounted on the support structure (10, 72), the tubular (22) having a first end (22a), a second end (22b) and an interior passage (24) which extends from the first end (22a) to the second end (22b), a tubular extension (34a-34f) releasably mounted on the support structure (72), the tubular extension (34a-34f) having a first end, a second end and an interior passage which extends from the first end to the second end, and a flexible assembly line (36) which extends from the interior passage of the tubular extension (34a-34f) to the second end thereof, into the tubular (22) at the first end (22a) thereof, and along the interior passage (24) of the tubular (22) to the second end (22b) thereof.

The application discloses a sliding continuous sinking well structure and a construction method thereof. The sinking well wall comprises a plurality of well wall segments connected in sequence. Each well wall segment comprises two side walls and a top plate on the top. Each side wall is provided with a plurality of mud guide holes penetrating through the end faces of the corresponding well wall segment. The side walls and the top plate of two adjacent well wall segments are connected through matching female joints and male joints. During construction, the sinking well sliding support is arranged at the lower end of the side wall. The pre-formed groove is arranged at the position corresponding to each side wall of the soil body. The track groove capable of sliding the sinking well sliding support is arranged in the pre-formed groove. Each well wall segment is slid to the required position through the track groove. The application cancels the layout of the counterforce ground anchor pile and avoids the setting of the connecting segment of the continuous sinking well, thereby simplifying the construction steps of the continuous sinking well, facilitating the popularization and implementation of the construction method and having good economic and social benefits.

SOLUTION: An underwater housing device includes a housing 1 and a gas source 3 connected to the housing. The housing has one open end face 2 that faces an underwater surface. A gap 7 is formed between the open end face and the underwater surface. A rotating water flow is formed inside the housing. The gas source supplies air into the housing. The rotating water flow prevents the air from escaping through the gap between the housing and the underwater surface, thus the underwater housing device forms a water-free space on the underwater surface.EFFECT: The device is applicable to underwater wall surfaces at any inclination angle and can effectively establish a water-free space even if there is a gap or no contact between the underwater housing device and an underwater surface, to demonstrate excellent applicability.SELECTED DRAWING: Figure 5

The application relates to a sinking well resistance-reducing isolation layer and a construction method. The sinking well resistance-reducing isolation layer is composed of a sinking well outer well wall and sand piles arranged at the bottom of a partition wall. The sand piles form a sand sleeve below the sinking well outer well wall step to reduce side resistance, and the sand piles form a sand sleeve between the inner side of a sinking well blade foot and soil to reduce end resistance. By arranging the sand piles at the bottom of the sinking well outer well wall and the partition wall, a certain thickness of sand sleeve is formed below the sinking well outer well wall step during sinking of the sinking well. In the case that the earth pressure is unchanged, the side resistance is effectively reduced by reducing the friction coefficient. Meanwhile, the sand piles form a sand sleeve between the inner side of the sinking well blade foot and the soil, the transverse thrust on the soil is increased by reducing the friction coefficient, the soil under the blade foot is damaged, the end resistance is reduced, and the problem that the sinking well outer well wall below the bottom step and the soil between the inner side of the blade foot and the soil cannot reduce resistance is solved.

The invention relates to a structure (2) for supporting a wind turbine tower (1) provided with a housing (7) for fitting therein the foot of the tower (1), a main axis (Γ) being defined on the platform (2) which coincides with a main axis of the tower (1), and which comprises a body with a constant cross-section and internal walls (8) and intermediate walls (10) joined by internal radial ribs (11) perpendicular to the internal wall (8) whose plane passes through the main axis (Γ), such that at the intermediate wall (10) first joining nodes (12) are defined between the intermediate wall (10) and radial ribs (11), the intermediate wall (10) and an external wall (9) being joined by reticular ribs (14 and 15). This structure provides an optimal transmission of forces. The invention likewise relates to methods for manufacturing, assembling and installing the structure.

The application discloses a flexible shaft well structure with anti-seismic and anti-seepage functions and a construction method thereof, and belongs to the field of building construction. The flexible shaft well structure comprises a reinforced concrete lining and a load-bearing ring arranged outside the reinforced concrete lining, the load-bearing ring is formed by circumferentially overlapping a plurality of flexible piles around the reinforced concrete lining, the flexible piles are formed by consolidating a permeable polymer and sand, and a polymer waterproof shock insulation buffer layer is arranged between the reinforced concrete lining and the load-bearing ring, and the polymer waterproof shock insulation buffer layer is formed by expanding a polymer grouting layer. The shaft well structure has high anti-seismic and anti-seepage performances, and is suitable for a coastal coral sand reclamation layer. A flexible load-bearing ring with anti-seismic and anti-seepage functions is formed by polymer permeation grouting, a polymer waterproof shock insulation buffer layer is formed by grouting between the reinforced concrete lining structure and the load-bearing ring, and the whole structure has anti-seismic and anti-seepage effects. In the excavation process, complicated dewatering operations are not needed, and a large amount of financial resources and time are saved.

The present invention provides a method for repairing a rubble-type structure, and a rubble-type structure constructed using this repair method, which involves filling a hole formed by rubble detaching from the base with foundation material of sufficient size, thereby firmly interlocking the foundation material with the existing rubble forming the inner surface of the hole. [Solution] A fabric formwork 6 that can expand into a three-dimensional shape is laid in a sheet-like state inside the hole 5 of the base 2. Next, fluid underwater concrete 7 is injected into the fabric formwork 6 to expand it, and the fabric formwork 6 expanded by the underwater concrete 7 is used as a foundation material to fill the hole 5, and is also inserted between the existing rubble stones 20 that form the inner surface of the hole 5.

The application discloses an installation method of an ultra-deep segmental large-diameter working well pressure sinking system and relates to the technical field of working well construction. The application comprises the following steps: step one, soil body reinforcement; step two, excavation of a sinking well foundation pit; step three, excavation of a pressure body foundation pit; step four, construction of a pressure body in the pressure body foundation pit; step five, installation of a counterforce frame; step six, pressure sinking; step seven, removal of the counterforce frame; and step eight, removal of the pressure body. The application provides controllable thrust to the sinking well body, so that the sinking well can sink faster and be more controllable, and the sinking well can be made in small segments, which is more advantageous in safety risk control. The counterforce device is provided with ballast weight by means of the peripheral weight distribution platform, and the sinking well is provided with a 'hoop' effect, the peripheral weight distribution platform is made of a ground anchor steel pipe and a prefabricated and cast-in-situ combined concrete structure weight, the construction process is simple, and the construction quality is easier to control.

To easily and accurately generate a three-dimensional model in a work chamber and to easily and accurately calculate a numerical aperture in a pneumatic caisson method.SOLUTION: The three-dimensional model generating system comprises: a projection device 11 that is attached to the top surface of a work chamber M and that projects a code image 10 in which coordinates of the attaching position is written vertically downward; an imaging device 12 that images the inside of the work chamber M including the code image 10 projected by the projection device 11; and an analysis device 13 that image-processes the image data imaged by the imaging device 12, and generates a three-dimensional model in the work chamber M. A doming phenomenon in the image-processing can be prevented with the code image 10 as a feature point. The three-dimensional model adjusted in scale can be generated by reading the coordinates written in the code image 10.SELECTED DRAWING: Figure 1

To remove debris in a void of a rubble mound.SOLUTION: A casing 60 is inserted from a top end surface 30 of a rubble mound 3 to drill a hole A into the rubble mound 3. A suction tube 1 is inserted into the hole A drilled by the casing 60. A suction pump P1 sucks up debris in voids in the rubble mound 3 together with seawater via the suction pipe 1. An injection pipe 2 is installed adjacently to or inside the suction pipe 1. An injection pump P2 injects high-pressure water from a nozzle 20 via the injection pipe 2. A driving device 5 rotates the injection pipe 2 so that the nozzle 20 rotates in a circumferential direction around a central axis of the injection pipe 2. Further, the driving device 5 raises and lowers the injection pipe 2 along a longitudinal direction.SELECTED DRAWING: Figure 8

The present invention relates to a novel type of construction method and a novel concrete block structure constructed thereby, the method being capable of remarkably enhancing the stability of a concrete block structure by forming drilled ground portions below through-hole portions for concrete columns of the concrete block and integrally forming, by using reinforcing bar assemblies for columns, precast concrete piles and cast-in-place concrete columns along the through-hole portions for concrete columns and the drilled ground portions so as to form composite concrete columns.

The application provides a sinking auxiliary device for caisson construction, and belongs to the technical field of caisson construction, and comprises a supporting base for bearing installation, a stabilizing mechanism, a rotary cutting mechanism and a rotary driving mechanism; the stabilizing mechanism is arranged on the supporting base, and the stabilizing mechanism comprises a vertical bearing and driving assembly for bearing the caisson and driving the caisson to sink vertically and a radial limiting assembly for limiting the radial deviation of the caisson; the rotary cutting mechanism is arranged below the bottom end of the caisson, and the rotary cutting mechanism comprises at least one rotary cutting frame, and at least one cutting piece is arranged on the rotary cutting frame; the rotary driving mechanism is arranged on the supporting base, the output end of the rotary driving mechanism is in transmission connection with the rotary cutting mechanism, and the rotary driving mechanism is used for driving the rotary cutting frame to drive the cutting piece to make a circumferential rotary motion, so as to cut the soil at the bottom end of the caisson. The sinking auxiliary device for caisson construction provided by the application eliminates the safety risk of manual excavation, improves the cutting efficiency, and shortens the construction period.

The application relates to the technical field of caisson structures, in particular to a quick installation type caisson structure for marine geotechnical engineering, which comprises a caisson main body, a top plate arranged on the top of the caisson main body and a plurality of pile columns fixed between the caisson main body and the top plate, the caisson main body is externally provided with an ecological plate assembly and a shell, a cavity is arranged in the shell, and the ecological plate assembly extends into the cavity. The quick installation type caisson structure for marine geotechnical engineering can be flexibly switched between a rigid fixing mode and an elastic floating mode. In a severe sea state, the structure is switched to the rigid fixing mode, the ecological plate assembly is rigidly connected with the shell and the caisson main body and cannot be moved, so that the structure can effectively resist strong external force impact and guarantee the overall stability of the structure; when ecological cleaning is needed, the structure is switched to the elastic floating mode, the ecological plate assembly can reciprocatingly vibrate to automatically clean excessive biological adhesion and garbage, the long-term ecological function of the structure is maintained, and the structure is suitable for different marine environments and work requirements.

This invention proposes a construction method for sealing the bottom of an ultra-large rectangular continuous caisson and its connecting section in soft, water-rich soil strata. The method includes the following steps: Before sinking, a capping beam retaining structure is installed around the caisson, with pre-embedded reinforcing bars and corbel structures. Horizontal and vertical bars are welded below the corbels, with the bottom of the vertical bars supporting the top surface of the capping beam. The caisson is sunk using a pressing method; after sinking to the designated depth, the bottom of the vertical bars is supported by the capping beam to stop sinking. The caisson is excavated to the designed depth without drainage, and then underwater concrete is poured to seal the bottom. The caisson and capping beam are connected by pre-embedded reinforcing bars, and concrete is poured to form a ground-connecting beam, achieving overall structural connection. After removing the corbels, the connecting section is constructed: excavation to the designed depth, soil reinforcement, pouring of a foundation concrete layer, laying of waterproof membrane, and finally, pouring a reinforced concrete horizontal beam to connect the two caissons, completing the sealing of the connecting section. This invention ensures accurate sinking of the continuous caisson, reduces surrounding surface subsidence, and ensures the quality of the sealing construction.

The present application belongs to the technical field of coastal engineering construction, and particularly relates to a prefabricated assembly integral forming structure and method of a gravity type caisson special-shaped cantilever parapet. The method comprises the following steps: S1. structure layering and block optimization; S2. cast-in-place placement surface unit construction; S3. prefabricated special-shaped cantilever component prefabrication; S4. prefabricated component transportation and positioning; S5. prefabricated component offshore installation; and S6. post-poured wet connection construction. The installation precision of a single prefabricated component is controlled within 20 mm, the offshore construction period is shortened by 40% compared with the traditional cast-in-place process, and the comprehensive construction cost is reduced by 17%. The overall stability of the large-volume parapet is ensured, the minimum value of the structural anti-sliding safety factor is greater than 2.13, and the foundation grounding rate is 77.6%, which meets the requirements of nuclear power plant nuclear-grade seismic resistance and durability. The offshore construction is safe and controllable, and is economical and reasonable, which fills the technical gap of the assembly seismic design of special-shaped parapets in the field of water transportation of nuclear power plants, and is particularly suitable for offshore engineering scenes such as nuclear power plant water intakes with strict requirements on structural seismic resistance and durability, and is easy to popularize and apply.

The utility model discloses an assembly type prefabricated open caisson which comprises an annular base, a plurality of layers of annular walls are installed on the upper side of the base in an assembled mode, each layer of annular wall is formed by splicing a plurality of arc-shaped pipe pieces, and the pipe pieces corresponding to the upper layer of annular wall and the lower layer of annular wall are staggered. First positioning columns are fixed to the pipe pieces in an embedded mode, semi-circular grooves are formed in the end sides of the pipe pieces, and the corresponding semi-circular grooves of the adjacent pipe pieces are spliced to form first positioning grooves for the first positioning columns to be inserted. Compared with a traditional construction mode that cast-in-place is conducted through formworks, the well body pipe piece adopts a factory prefabrication construction mode, the influence of the environment is avoided, construction is fast, and the error rate is low. The inserting depth of the first positioning columns reaches the middle position in the first positioning groove, the first positioning groove not only accommodates the first positioning columns corresponding to the lower layer, but also accommodates the first positioning columns on the upper layer, and the cement mortar can fill the gap, so that the sealing performance is improved.