407 results about "Caisson" patented technology

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.

The invention relates to the technical field of tunnel engineering prefabricated part production, in particular to a large-diameter duct piece independent kiln assembly line conveying prefabricating method and system. S2, a reinforcement cage and an embedded part are installed; s3, concrete is precisely poured and vibrated; s4, pre-curing and surface treatment; s5, carrying out roller way type flow conveying; s6, hydration heat-driven dynamic maintenance is carried out; and S7, demolding and finished product detection. And S8, mold circulation. According to the large-diameter duct piece prefabricating production line, through technical innovation in multiple aspects of mold, conveying, maintenance, control and the like, the core technical problem in existing large-diameter duct piece prefabricating production is solved, high-precision, high-efficiency, low-energy-consumption and green production of large-diameter duct pieces is achieved, and the large-diameter duct piece prefabricating production line has remarkable technical advantages and wide application prospects and is suitable for large-diameter duct piece prefabricating production. The method can be widely applied to infrastructure construction projects such as shield tunnels, open caisson projects and underground comprehensive pipe galleries.

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.

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.

The invention relates to a breakwater structure for wave power generation and a construction method of the breakwater structure. The breakwater structure comprises a lower barrel body, an upper caisson and a power generation device. A compartment is arranged in the upper caisson, and the power generation device is installed in the compartment. A wave inlet hole is formed in the wave facing side of the upper caisson, a cast-in-place adjusting node is arranged on the top of the upper caisson, and a wave wall, a cable pipe trench, a detachable road plate and an overhauling device are sequentially arranged above the node. The breakwater structure and the wave power generation system are integrated by adopting standard barrel type foundation factory prefabrication and floating transportation installation and combining cast-in-place joint leveling and the detachable road plates. The structure has the advantages of being convenient to construct, controllable in cost, stable in structure, convenient to maintain and the like, is suitable for wave power generation under medium and small wave conditions, and is particularly suitable for green power supply and coast protection in areas such as ports and islands.

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.

The invention discloses delayed coagulation type super-early-strength quick-hardening mortar and a preparation method thereof, and relates to the technical field of building materials, a shell-core structure targeted modified early strength agent is designed, a staged dry-wet mixing technology is adopted, seabed in-situ curing is combined, cooperation of mortar delayed coagulation construction and super-early-strength development is achieved, and the construction efficiency is improved. According to the present invention, with the design of the targeted modified early strength agent, the surface delayed coagulation shell and the core early strength core structure are formed through the grafting reaction of the sodium nitrite and the hydroxyl carboxylic acid monomer, and the 15-25% accurate grafting rate control is matched, such that the antagonism problem of the traditional early strength agent and the delayed coagulation agent can be solved, and the deep sea open caisson grouting temporary support requirement can be met; in the deep sea environment, the delayed coagulation shell can guarantee a construction window of 75-105 min, the requirement for long-distance grouting of the seabed is met, deep sea high pressure can trigger the delayed coagulation shell to be broken, the core early strength core rapidly activates cement to be hydrated, and the mortar can rapidly form the requirement for rapid bearing of the open caisson temporary support with enough strength.

The invention discloses an open caisson sinking posture prediction method, which belongs to the technical field of open caisson sinking prediction, and comprises the following steps: constructing a primary data matrix according to on-site actual measurement time sequence data; smoothing the first-level data matrix by using a Savitz-Gauge filtering algorithm to obtain a second-level data matrix; constructing a third-level data matrix in combination with the second-level data matrix and the construction excavation information representation matrix; performing correlation analysis on the three-level data matrix by using three analysis methods to obtain a correlation characterization matrix; screening key variables by using the correlation characterization matrix to construct a four-level data matrix; performing dimension reduction processing on the four-level data matrix by using a principal component analysis method to obtain a principal component matrix; and training a long-short-term memory network by using the principal component matrix to obtain an open caisson sinking posture prediction model to perform open caisson sinking posture prediction so as to obtain an open caisson sinking posture prediction result. According to the method, the accuracy and stability of deep water open caisson sinking posture prediction can be improved.

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.

This utility model relates to the field of floating wind power, and more particularly to a floating offshore wind power integration system based on fishery-wind complementarity. It includes a floating platform, a wind turbine system, an aquaculture system, and a suction caisson. The aquaculture system includes aquaculture nets. The wind turbine system is located above the floating platform, and the aquaculture nets are located below the floating platform. The suction caisson is connected to the floating platform. Wind power is provided through the wind turbine system, and fishery aquaculture is carried out through the aquaculture system, achieving fishery-wind complementarity integration. Furthermore, the design of the suction caisson ensures the stable arrangement of the entire system. The overall structure utilizes longitudinal sea space, has the characteristics of wide applicability to various sea areas, strong stability, and high energy utilization rate, and is expected to be widely used in the field of floating offshore wind power.

The invention provides a caisson tracked robot trajectory tracking method and system, and relates to the technical field of robotics.The caisson tracked robot trajectory tracking method comprises the steps that original control input is processed through a micro-saturable function based on a Gaussian error function, and a smooth saturation control signal is obtained; calculating a difference value between the smooth saturation control signal and original control input to obtain a saturation error compensation signal; using the smooth saturation control signal, the saturation error compensation signal and the initial state to construct a basic framework of a sliding mode surface through a feed-forward function; and introducing a nonlinear feedback function to the basic framework, and performing staged adjustment on the state of the sliding mode surface through the function to inhibit steady-state overshoot so as to obtain a state variable of the sliding mode surface. According to the method, high-precision and fast-convergence trajectory tracking of the caisson tracked robot in a complex underwater environment is realized through micro saturation processing, dynamic sliding mode surface control, a self-adaptive reaching law and online disturbance compensation.

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 invention relates to a pipe jacking structure crossing a metro and a current pipeline in a water-rich area and a construction method, the pipe jacking structure comprises a jacking working well structure, a jacking pipe crossing reinforcement protection system, a jacking receiving well structure and a rectangular jacking pipe, the jacking working well structure and the jacking receiving well structure are respectively located at two sides of a metro operation interval and a current pipeline group; the jacking pipe transversely penetrates through the reinforcing protection system, stretches across the subway operation section and the current pipeline group and is located between the subway operation section and the current pipeline group, the jacking pipe transversely penetrates through the reinforcing protection system and obliquely and downwards penetrates through the current pipeline group, and the rectangular jacking pipe horizontally penetrates through the current pipeline group and is arranged across the subway operation section. The two ends of the rectangular jacking pipe communicate with the jacking working well structure and the jacking receiving well structure correspondingly. According to the construction method, potential safety hazards can be eliminated in the construction period that the rectangular jacking pipe overpasses a subway and underpasses a current pipeline group, operation municipal facilities are protected, through reasonable construction procedures, the construction difficulty of the large-size open caisson and the rectangular jacking pipe is greatly lowered, and operation is convenient.

This invention belongs to the field of port engineering structural health monitoring and numerical simulation technology, specifically relating to a digital twin-based seismic stability assessment system and method for caisson wharves. The system includes a data acquisition and processing module, a model update module, and a performance evaluation and early warning module; the method includes data perception and feature extraction, parallel model calibration and update, coupled analysis, and intelligent early warning. This invention establishes a high-fidelity digital twin model that is synchronously updated with the physical entity and utilizes high-performance parallel computing technology to achieve real-time and accurate assessment and early warning of the stability of caisson wharves under combined seismic and wave effects.

The application discloses a control method for caisson sinking in water-rich sand layer and disturbance of adjacent buildings, which comprises the following steps: based on numerical simulation, stratum parameters are inversed and a hydraulic barrier is pre-designed; the sinking rate and the inclination angle of the caisson are collected in real time, the depth of soil removal or the amount of mud injection is adjusted by an inner ring incremental PID controller, so that the rate and the inclination angle tend to be close to the set value; meanwhile, the active control coefficient K c‑eff (t) is calculated, the rate set value is dynamically adjusted by an outer ring supervisor, and the K c‑eff (t) is ensured to be always in a safe interval; a precipitation settlement calculation model based on the layering summation method is established, and when the cumulative settlement or the settlement rate exceeds the standard, the recharge flow is adjusted according to an incremental formula. Through the "mechanical supervision-rate following" cascade control and the settlement-recharge closed loop feedback, the safe and controllable sinking of the caisson in the water-rich sand layer and the effective protection of the adjacent buildings are realized.

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.

A kind of train bottom photographing device based on miniaturization TFDS system, it relates to track traffic equipment fault detection technical field.The utility model discloses to solve the problems of many and large size of prior art TFDS system equipment box, time-consuming and laborious installation, and the influence of work section big machine tamping.The utility model discloses a caisson box body, a door assembly and multiple photographing modules, caisson box body is fixedly connected on train track as sleeper, door assembly is arranged on the upper end surface of caisson box body, multiple shooting windows are arranged on door assembly, multiple photographing modules are all arranged in caisson box body, and photographing module and shooting window are set one by one, photographing module is photographed through shooting window when operating.The utility model is used for railway image detection system.

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 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.

The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.

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.

The utility model relates to the technical field of municipal drainage, in particular to a drainage current well transformation system which comprises a current well and a newly-built open caisson coaxial with the current well, the diameter of the newly-built open caisson is larger than that of the current well, the current well is located at the bottom of the newly-built open caisson, and a current drainage pipe is arranged at the bottom of the current well. The well wall of the newly-built open caisson is provided with a newly-built drainage water inlet pipe, the well bottom of the newly-built open caisson is fixedly connected with reinforcing ribs, and the well wall of the current well extends from the well bottom of the newly-built open caisson to the top of the newly-built open caisson, so that height difference is formed between the top of the well wall of the current well and the well bottom of the newly-built open According to the technical scheme, the engineering cost and the construction difficulty are reduced.

The invention discloses a supporting and balancing device for emergency repair of double-row large-diameter deeply-buried pipelines and a construction method thereof, the device comprises a supporting system and an enclosure structure, the supporting system comprises steel supports, steel inclined struts and steel enclosing purlins, and the enclosure structure comprises steel sheet piles, triangular supports and guide supports. The steel sheet piles sink into soil bodies on the two sides of a pipeline through the guide supports and are tightly attached to the open caisson, the steel enclosing purlins are fixed to the inner sides of the steel sheet piles through the triangular supports, the steel supports are longitudinally fixed between the two steel enclosing purlins, and the steel inclined struts are obliquely arranged between the open caisson and the steel enclosing purlins to form a triangular stable system. According to the construction method, device installation, foundation pit excavation, pipeline repairing and dismantling backfilling are completed according to preset steps. The stability and the supporting capacity of the foundation pit are greatly improved, the method is suitable for large-diameter deeply-buried pipeline emergency repair scenes, construction is efficient and convenient, safety accidents can be effectively avoided, and practicability is high.

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.

The utility model discloses a kind of caisson water stop K plate bolt, it is related to K plate bolt technical field, including: K plate bolt is poured in the inside of wall body;The K plate bolt includes: the bolt main body with the plug-in channel being opened;Positioning assembly is installed in the inside of bolt main body;Further include: clamping position assembly is provided with multiple, and is installed in the inside of plug-in channel, and is clamped on bolt main body by positioning assembly;Connecting assembly is poured in the inside of wall body, and two K plate bolts are connected together;Nut assembly is inserted into the inside of plug-in channel;The utility model bolt main body's circular table type and smooth outer surface design, and the structural design of nut assembly and clamping position assembly, so that the installation and disassembly of K plate bolt are more convenient and fast, reduce construction time and labor intensity, reduce the damage to wall body simultaneously, reduce later repair cost.

A hydraulic lift caisson for lifting buildings includes a pair of support columns fixed at first ends to a support column base plate and at second ends to an anchor plate, a lifting post disposed between the pair of support columns and fixed to a lifting post base plate, wherein the lifting post base plate slides along the pair of support columns, and a plurality of threaded lifting rods disposed between the support columns and the lifting post. The lifting post base plate slides along the pair of support columns together with the lifting post when the threaded lifting rods are lifted upward by hydraulic jacks disposed on the anchor plate.

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

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.

The utility model discloses an inner mould lifting anti-falling device for caisson prefabrication, and relates to the technical field of caisson construction, the inner mould lifting anti-falling device comprises a base used as a base, the base is provided with a sliding and lifting assembly and an inner mould assembly, the sliding and lifting assembly is connected with the inner mould assembly, and the inner mould assembly is connected with the base. The base, the sliding and lifting assembly and the inner membrane assembly are connected through the connecting pieces and are subjected to one-time continuous pouring, the construction structure is simple and reasonable, adaptability is high, field management is facilitated, large-scale and rapid application is possible by enhancing application convenience, improving safety and reducing labor force, and the construction cost is reduced. The sliding time is greatly shortened, safety is guaranteed, the construction period is greatly shortened, meanwhile, economic benefits are improved, superiority is shown, the installation difficulty is small, engineering materials are greatly reduced, the working capacity is formed within short time, repeated use is achieved, waste is avoided, and therefore good technical benefits and economic benefits are achieved.

The application discloses a kind of water accumulation treatment method and its device, belong to the technical field of drainage device.A kind of water accumulation treatment device includes drainage component and liquid level detection component, the drainage component includes first drain pipe, the first drain pipe is buried in foundation, the first drain pipe is communicated with caisson;The liquid level detection component includes liquid level sensor and indicator light, the liquid level sensor is arranged in caisson, the indicator light is arranged on foundation, and the liquid level sensor controls the indicator light to open and close.The application is convenient for user to perceive the water accumulation in caisson and clean up blockage in time, to reduce the situation that wall body appears mildew.