Waterproof assembled retaining wall chuck sealing connection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUJIAN LONGYAN FANGYUAN CEMENT PROD CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-06-02
Smart Images
Figure CN122129016A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building sealing technology, specifically to a waterproof assembled wall-mounted chuck sealing connection device. Background Technology
[0002] In the construction of manually excavated bored piles, the traditional method of cast-in-place retaining wall construction typically involves layered excavation and layered pouring. This means that after each section of soil is excavated, a section of concrete retaining wall is immediately poured. The formwork is removed only after the concrete has reached a certain strength, allowing for the excavation of the next section to continue. This method has a long construction cycle, loosely connected procedures, and low overall efficiency.
[0003] Furthermore, in construction environments with high groundwater levels or complex geological conditions, cast-in-place retaining walls are susceptible to groundwater seepage before the concrete has reached sufficient strength, which can lead to damage to the retaining wall structure or even cause safety accidents such as borehole collapse, posing significant construction risks.
[0004] Precast prefabricated retaining wall structures are increasingly being used in bored pile retaining wall construction. These structures, assembled on-site from precast components, offer advantages such as rapid construction speed and easy quality control. However, existing precast retaining wall structures often have gaps at the joints between precast panels during assembly, making effective seepage prevention and sealing difficult. If the joints are not properly sealed, groundwater or mud can easily seep into the retaining wall, affecting its overall stability and waterproofing performance, and ultimately jeopardizing construction safety. Therefore, a seepage-proof prefabricated retaining wall clamp sealing connection device is proposed to address these issues. Summary of the Invention
[0005] Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a waterproof prefabricated retaining wall chuck sealing connection device, which solves the problems of long construction and pouring periods for retaining walls, poor sealing effect at the joints of prefabricated retaining wall structures, and other issues in existing technologies.
[0007] Technical solution
[0008] To achieve the above objectives, the present invention provides the following technical solution: a waterproof prefabricated retaining wall chuck sealing connection device, comprising an upper chuck and a lower chuck; both the upper and lower chucks are provided with chuck grooves; a prefabricated retaining plate is provided between the upper and lower chucks, the prefabricated retaining plate being composed of multiple arc-shaped plates with circular arc structures; the opposite surfaces of the upper and lower chucks are each provided with a mating groove for inserting the prefabricated retaining plate, and the upper chuck is provided with a sealing element for sealing the connection of the prefabricated retaining plate.
[0009] The sealing element includes a pouring port located on the upper chuck. The pouring port communicates with the mating groove into which the precast protective plate is inserted. Mortar is poured through the connection between the pouring port and the mating groove at the joint with the precast protective plate. The mortar solidifies to form a sealing connection between the precast protective plate and the upper chuck.
[0010] Preferably, the prefabricated protective plate includes a trapezoidal protective plate and an inverted trapezoidal protective plate, which are arranged in an alternating circular pattern to form a circular protective wall structure. The inner and outer surfaces of the trapezoidal and inverted trapezoidal protective plates are provided with stepped pieces, which abut against the upper chuck.
[0011] Preferably, a circular baffle is connected to the upper chuck by a support block, and the gap between the baffle and the upper chuck forms a pouring port. An insertion slot is provided at the bottom of the upper chuck, and the top of the precast protective plate is inserted into the inside of the insertion slot. The insertion slot is connected to the channel of the pouring port.
[0012] Preferably, the trapezoidal guard plate and the inverted trapezoidal guard plate have arc grooves on their sides, and the arc grooves on the trapezoidal guard plate and the inverted trapezoidal guard plate cooperate with each other to form a circular flow channel groove, and the top of the flow channel groove is connected to the insertion groove.
[0013] Preferably, the bottom of the trapezoidal guard plate and the inverted trapezoidal guard plate are connected to the slot on the lower chuck, and the lower chuck is provided with a full circle of annular groove, and the flow channel groove formed on the trapezoidal guard plate and the inverted trapezoidal guard plate is connected to the annular groove.
[0014] Preferably, the lower chuck is provided with a socket, the socket is provided with a slot, the bottom of the inverted ladder guard plate is inserted into the slot, and there is a gap after the slot and the inverted ladder guard plate are inserted and engaged.
[0015] Preferably, an insertion tube is inserted into the upper chuck, an outlet groove is provided on the upper chuck, and a drainage hole is provided on the insertion tube.
[0016] Preferably, the cannula and outlet slot are provided in multiple sets, and the center of the chuck above the multiple sets of cannula and outlet slot is a circular array portion with the center axis.
[0017] Preferably, the insertion tube is rotatably connected to the upper chuck, the inner wall of the upper chuck is connected to a fluid guard plate, the fluid guard plate is provided with a fluid groove, and the fluid groove is in communication with the insertion tube.
[0018] Beneficial effects
[0019] Compared with the prior art, the present invention provides a waterproof assembled wall retaining chuck sealing connection device, which has the following beneficial effects:
[0020] 1. This waterproof prefabricated retaining wall chuck sealing connection device, through its structure of prefabricated retaining plates assembled with upper and lower chucks, facilitates on-site assembly and avoids the cumbersome process of traditional cast-in-place retaining wall construction involving layer-by-layer pouring and curing. Mortar is only poured into the joints after assembly, and the short mortar setting time significantly shortens the overall construction cycle.
[0021] 2. This waterproof prefabricated retaining wall chuck sealing connection device, through a pouring port on the upper chuck, connects with the butt joint groove, flow channel groove, and annular groove of the lower chuck, forming a complete mortar pouring channel. The mortar can evenly fill each connection gap, forming an integral sealed structure after solidification, effectively preventing groundwater from seeping into the retaining wall from the connection, thus improving the waterproof performance of the retaining wall. Compared with traditional one-piece casting, this device avoids quality problems such as pores and cracks caused by heat accumulation inside the concrete or uneven pouring. The mortar only fills the assembly gaps, and after solidification, the structure is dense, resulting in higher overall strength and more stable quality of the retaining wall.
[0022] 3. This waterproof prefabricated retaining wall chuck sealing connection device includes a fluid guard plate, insertion pipe, and outlet groove. The sealing performance of the retaining wall connection can be visually inspected by injecting a test solution. If leakage occurs, the colored solution will seep out from the gaps, allowing construction personnel to promptly detect, repair, or replace the leak, thus improving the controllability and safety of the construction process. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a waterproof assembled wall-mounted chuck sealing connection device proposed in this invention.
[0024] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a waterproof assembled wall-protecting chuck sealing connection device proposed in this invention.
[0025] Figure 3 This is a schematic diagram of the upper chuck connection structure of a waterproof assembled wall-protecting chuck sealing connection device proposed in this invention;
[0026] Figure 4 This is a schematic diagram of the upper chuck structure of a waterproof assembled wall-protecting chuck sealing connection device proposed in this invention.
[0027] Figure 5 This is a schematic diagram of the prefabricated protective plate structure of a waterproof assembled wall-mounted chuck sealing connection device proposed in this invention;
[0028] Figure 6 This is a schematic diagram of the lower chuck connection structure of a waterproof assembled wall-protecting chuck sealing connection device proposed in this invention;
[0029] Figure 7This is a schematic diagram of the connection structure of the socket of the waterproof assembled wall-mounted chuck sealing connection device proposed in this invention;
[0030] Figure 8 This is a schematic diagram of the insertion tube connection structure of a waterproof assembled wall-mounted chuck sealing connection device proposed in this invention.
[0031] In the diagram: 1. Upper chuck; 2. Lower chuck; 21. Socket; 22. Slot; 3. Slot; 4. Precast protective plate; 41. Trapezoidal protective plate; 42. Inverted trapezoidal protective plate; 43. Step plate; 5. Seal; 501. Baffle; 502. Pouring port; 503. Support block; 504. Insert groove; 505. Flow channel groove; 506. Annular groove; 6. Fluid protective plate; 61. Fluid groove; 62. Insert pipe; 63. Outlet groove. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Please see Figures 1-8 A waterproof prefabricated retaining wall chuck sealing connection device includes an upper chuck 1 and a lower chuck 2; both the upper chuck 1 and the lower chuck 2 have chuck grooves 3; a prefabricated retaining plate 4 is disposed between the upper chuck 1 and the lower chuck 2, the prefabricated retaining plate 4 being composed of multiple arc-shaped plates with circular arc structures; the opposite surfaces of the upper chuck 1 and the lower chuck 2 are provided with mating slots for inserting the prefabricated retaining plate 4, and the upper chuck 1 is provided with a sealing element 5 for sealing the connection of the prefabricated retaining plate 4. The opposite surfaces of the upper chuck 1 and the lower chuck 2, i.e., the side facing the prefabricated retaining plate, are provided with mating slots for inserting the prefabricated retaining plate 4. The upper and lower ends of the prefabricated retaining plate 4 are respectively inserted into the mating slots of the upper chuck 1 and the lower chuck 2 to achieve rapid positioning and initial fixation, facilitating subsequent assembly and sealing.
[0034] In this embodiment, the sealing element 5 includes a pouring port 502, which is located on the upper chuck 1. The pouring port 502 communicates with the mating groove into which the precast protective plate 4 is inserted. Mortar is poured through the connection between the pouring port 502 and the mating groove, and is poured at the joint with the precast protective plate 4. The mortar solidifies to form a connection seal between the precast protective plate 4 and the upper chuck 1. To further guide the mortar flow to all joint gaps, the precast protective plate 4 is formed by interlocking trapezoidal protective plates 41 and inverted trapezoidal protective plates 42. Both of them have arc grooves on their sides, forming a circular flow channel 505 after splicing. The top of the flow channel 505 communicates with the insertion groove 504, and the bottom communicates with the annular groove 506 provided on the lower chuck 2. In addition, the lower chuck 2 is equipped with a socket 21 and a slot 22. The bottom of the inverted ladder guard plate 42 is inserted into the slot 22 with a gap, which is also connected to the flow channel 505 and the annular groove 506. In actual construction, the mortar enters the socket groove 504 through the pouring port 502, and then flows downward along the flow channel 505, sequentially filling the vertical gap between the trapezoidal guard plate 41 and the inverted ladder guard plate 42, the connection between the socket groove 504 and the top of the precast guard plate 4, the connection between the annular groove 506 and the bottom of the precast guard plate 4, and the gap between the slot 22 and the bottom of the inverted ladder guard plate 42. Under the action of gravity, the mortar naturally fills all the connection interfaces. After the mortar solidifies, it forms a dense and continuous sealed structure, thereby realizing the overall connection and seepage prevention seal between the precast guard plate 4 and the upper chuck 1 and the lower chuck 2.
[0035] Furthermore, the prefabricated protective panel 4 includes trapezoidal protective panels 41 and inverted trapezoidal protective panels 42, which are arranged in an alternating circular pattern to form a circular protective wall structure. Both the inner and outer surfaces of the trapezoidal protective panels 41 and the inverted trapezoidal protective panels 42 are provided with stepped pieces 43, which abut against the upper chuck 1. The cross-section of the trapezoidal protective panel 41 is a trapezoidal structure that is narrower at the top and wider at the bottom, while the cross-section of the inverted trapezoidal protective panel 42 is an inverted trapezoidal structure that is wider at the top and narrower at the bottom. The trapezoidal protective panels 41 and the inverted trapezoidal protective panels 42 are arranged alternately along the circumference, meaning that one trapezoidal protective panel 41 and one inverted trapezoidal protective panel 42 are alternately spliced together to form a complete circular protective wall structure.
[0036] Furthermore, a circular baffle 501 is connected to the upper chuck 1 via a support block 503. The gap between the baffle 501 and the upper chuck 1 forms a pouring opening 502. A slot 504 is provided at the bottom of the upper chuck 1, and the top of the precast protective plate 4 is inserted into the slot 504. The slot 504 communicates with the channel of the pouring opening 502. The staggered arrangement makes the contact surfaces between the trapezoidal protective plate 41 and the inverted trapezoidal protective plate 42 mutually compatible inclined surfaces, forming a self-locking structure after assembly, which enhances the overall radial stability and lateral pressure resistance of the protective wall. At the same time, both the trapezoidal protective plate 41 and the inverted trapezoidal protective plate 42 have arc grooves on their sides. After splicing, they form a circular flow channel 505, which is used to guide mortar to fill the joint gaps.
[0037] Furthermore, the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42 have arc grooves on their sides, and these arc grooves cooperate to form a circular flow channel 505. The top of the flow channel 505 communicates with the insertion slot 504. Stepped pieces 43 are provided on the inner and outer surfaces of the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42, specifically on the surfaces near the center of the bored pile and near the borehole wall. These stepped pieces 43 are strip-shaped structures that protrude horizontally outward along the surface of the guard plate and are located near the upper and lower ends of the guard plate. When the top of the precast guard plate 4 is inserted into the insertion slot 504 at the bottom of the upper chuck 1, the upper end face of the stepped piece 43 abuts against the lower end face of the upper chuck 1. The stepped piece 43 mainly serves the following functions: limiting the depth of the precast guard plate 4 inserted into the insertion slot 504, ensuring that the insertion depth of each guard plate is consistent, and ensuring the overall flatness and verticality of the guard wall. After the stepped plate 43 abuts against the upper chuck 1, a partial contact seal is formed, reducing the overflow of mortar from the opening of the slot 504 during mortar pouring and ensuring that the mortar flows downward along the pre-set flow channel 505. Before the mortar solidifies, the stepped plate 43 can temporarily bear part of the self-weight and lateral pressure of the precast protective plate 4, helping to maintain the stability of the protective plate position and facilitating subsequent assembly and pouring operations. Through the staggered arrangement of the trapezoidal protective plate 41 and the inverted trapezoidal protective plate 42, and the limiting and sealing assistance of the stepped plate 43, the precast protective plate 4 can be quickly and accurately assembled and positioned with the upper chuck 1 and the lower chuck 2, providing good sealing conditions for subsequent mortar pouring, thereby ensuring the integrity and seepage prevention performance of the protective wall structure. The flow channel 505 formed on the trapezoidal protective plate 41 and the inverted trapezoidal protective plate 42 is interconnected with the annular groove 506. The arc grooves on the sides of the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42, when spliced together, form a vertical circular flow channel 505. The bottom outlet of the flow channel 505 is directly opposite the annular groove 506 on the lower chuck 2. When the mortar is poured in from the pouring port 502 of the upper chuck 1, it passes through the insertion slot 504 and the flow channel 505 in sequence, and finally flows into the annular groove 506.
[0038] It is worth noting that the bottoms of the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42 are connected to the slots 3 on the lower chuck 2. The lower chuck 2 has a full-circle annular groove 506, and the flow channels 505 formed on the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42 communicate with the annular groove 506. The upper end face of the lower chuck 2 has a slot 3 that conforms to the shape of the bottom of the precast guard plate 4. The bottoms of the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42 are inserted into the corresponding slots 3, achieving the positioning and fixation of the precast guard plate 4 on the lower chuck 2. An appropriate gap can be reserved between the slot 3 and the bottom of the precast guard plate 4 for mortar filling, forming a sealed connection. The annular groove 506 collects and redistributes the mortar from each flow channel 505, allowing the mortar to evenly fill all the connection gaps between the precast guard plate 4 and the lower chuck 2 along the circumference, avoiding localized mortar shortages or incomplete filling. After the mortar solidifies within the annular groove 506, it forms a continuous annular sealing band, completely sealing the gaps between the bottom of each precast protective plate 4 and the lower chuck 2, effectively blocking the path of groundwater seeping upwards from the bottom of the retaining wall. The solidified mortar bonds the inner wall of the annular groove 506 to the bottom of the precast protective plate 4, creating a reliable mechanical connection and chemical bond between the precast protective plate 4 and the lower chuck 2, thus improving the overall stability and impermeability of the retaining wall structure. Through the interconnected design of the flow channel 505 and the annular groove 506, the mortar can fill all connection interfaces between the precast protective plate 4 and the upper and lower chucks 1 and 2 from top to bottom and from point to surface, forming a complete vertical and annular composite sealing structure, significantly improving the impermeability and structural integrity of the prefabricated retaining wall.
[0039] It is worth noting that the lower chuck 2 is equipped with a socket 21, and the socket 21 is equipped with a slot 22. The bottom of the inverted ladder guard plate 42 is inserted into the slot 22. After the slot 22 and the inverted ladder guard plate 42 are inserted and engaged, there is a gap. That is, after the bottom of the inverted ladder guard plate 42 is inserted into the slot 22, the two are not tightly fitted, but a pre-set gap space is maintained around them. The gap forms an annular cavity around the bottom of the inverted ladder guard plate 42. When mortar is poured in from the pouring port 502 of the upper chuck 1 and flows downward along the flow channel 505, the mortar can smoothly enter the gap between the slot 22 and the inverted ladder guard plate 42, so as to fully fill the bottom connection of the inverted ladder guard plate 42. After the mortar solidifies, the grout filling the gaps bonds the bottom of the inverted ladder guard plate 42 to the socket 21, forming a reliable sealing layer that effectively prevents groundwater from seeping into the interior of the retaining wall through the connection gap between the inverted ladder guard plate 42 and the lower chuck 2. Both the precast guard plate and the chuck are factory-prefabricated components with certain manufacturing tolerances, making it difficult to achieve a completely zero-gap fit during on-site assembly. The pre-set gaps absorb dimensional deviations, reducing the requirements for prefabrication accuracy and facilitating rapid on-site installation, while ensuring a dense connection after mortar filling. The tortuous sealing interface formed by the gaps extends the path length of groundwater seepage, and combined with the dense structure after mortar solidification, further improves the seepage prevention performance. The gap between the slot 22 and the bottom of the inverted ladder guard plate 42 is interconnected with the aforementioned annular groove 506, flow channel groove 505, and socket groove 504, together forming a complete mortar casting network. During construction, the mortar fills the gaps between the insertion groove 504, the flow channel groove 505, the annular groove 506, and the slot 22 from top to bottom under the action of gravity. After solidification, it forms an integral sealed structure, which firmly connects the upper chuck 1, the precast protective plate 4, and the lower chuck 2 into a prefabricated protective wall with excellent seepage prevention performance.
[0040] In addition, an insertion tube 62 is inserted into the upper chuck 1, and an outlet groove 63 is formed on the upper chuck 1. A drainage hole is provided on the insertion tube 62. Multiple sets of insertion tubes 62 and outlet grooves 63 are arranged in a circular array with the center of the upper chuck 1 as the central axis. This circular array arrangement of the insertion tubes 62 and outlet grooves 63 allows the detection fluid, such as a colored aqueous solution, to be released simultaneously or sequentially from multiple locations on the upper chuck 1, uniformly covering the entire outer perimeter of the protective wall along the circumference, avoiding detection blind spots. The operator injects the detection fluid into the insertion tube 62, and the fluid seeps into the outer perimeter of the protective plate connection gap through the drainage hole and outlet groove 63. If there is a defect in the seal at any connection point, the test fluid will seep out from that point to the inner surface of the protective wall or the stepped surface. Construction personnel can quickly determine the leak point based on the location of the seepage and carry out targeted repairs or replacement. Since each set of insertion tubes 62 and outlet grooves 63 is independent, construction personnel can perform injection testing on each set sequentially, achieving zoned testing. For example, they can first test the fan-shaped area corresponding to the first set, and then test the next set, facilitating precise location of the leak area.
[0041] In addition, the insertion tube 62 is rotatably connected to the upper chuck 1. A fluid guard plate 6 is connected to the inner wall of the upper chuck 1, and a fluid groove 61 is provided inside the fluid guard plate 6. The fluid groove 61 is in communication with the insertion tube 62. The fluid guard plate 6 is an annular or arc-shaped plate structure, fixedly installed on the inner side wall or bottom of the upper chuck 1, forming an integral part with the upper chuck 1. The fluid guard plate 6 can be made of the same material as the upper chuck 1, such as concrete, steel, or composite materials, either integrally formed or separately connected to ensure structural strength and sealing. A fluid groove 61 is provided inside the fluid guard plate 6. The fluid groove 61 is a cavity or channel structure opened inside the fluid guard plate 6. It can be continuously arranged along the circumference of the fluid guard plate 6 to form an annular distribution channel; or it can be arranged in segments, each segment corresponding to a set of insertion tubes 62. The fluid groove 61 has one or more inlets for injecting detection fluid from the outside. The fluid groove 61 is in communication with the insertion tube 62. That is, the outlet of the fluid tank 61 is connected to the inner cavity of the insertion tube 62, allowing the detection fluid injected into the fluid tank 61 to flow into the insertion tube 62 and be discharged to the outer area of the protective wall through the drainage hole and outlet groove 63 on the insertion tube 62. The insertion tube 62 is rotatably connected to the upper chuck 1, allowing the construction personnel to control the orientation of the drainage hole when the insertion tube 62 is rotated according to actual testing needs. The flow is only established when the drainage hole matches the outlet groove 63. If misaligned, the complete surface of the insertion tube 62 will form a closed space with the outlet groove 63, limiting the backflow of external water. In addition to liquid detection, this structure can also be used for gas detection. For example, pressurized air can be injected into the fluid tank 61, and the sealing performance can be determined by detecting whether air bubbles seep out from the inner surface of the protective wall in conjunction with a water film or soapy water. The conductive design of the fluid tank 61 and the insertion tube 62 is compatible with both liquid and gas detection media, expanding the applicability of the detection method. After the retaining wall is assembled and sealed with mortar, a sealing test is required. Construction workers inject the test fluid into the fluid tank 61. The fluid is distributed through the fluid tank 61 to each set of insertion tubes 62, flows out through the drainage holes on the insertion tubes 62, and exits through the outlet tank 63 to the outside of the retaining wall. By rotating the insertion tubes 62, the orientation of the drainage holes can be adjusted, allowing for targeted testing of connection gaps in different directions. If a leak is found, the test fluid will seep from the gap to the inner surface of the retaining wall, allowing construction workers to locate and mark the leak point for subsequent repairs.
[0042] The working principle is as follows: In the construction of manually excavated bored piles, the traditional method of cast-in-place retaining wall construction involves excavating a section of soil, pouring a section of concrete retaining wall, and then removing the formwork and excavating the next section of soil after the required strength has been reached. This process involves long intervals between construction steps, and due to the presence of groundwater, the cast-in-place retaining wall may be damaged before it has fully developed its strength, easily leading to safety accidents such as borehole collapse. Currently, the use of prefabricated assembled retaining wall structures provides a more stable retaining wall formation for bored piles. This scheme relies on the assembly of multiple precast panels to form an overall retaining wall structure. In the initial stage, a pit with a depth of 0.8m or 1m is dug at the location of the bored pile. Then, the first layer of retaining wall is placed. First, the upper chuck 1 is clamped onto the stepped surface of the bored pile, with the upper chuck 1 protruding 30mm from the bored pile. After the upper chuck 1 is fixed, the lower chuck 2 is installed. The lower chuck 2 is directly placed to the depth of the bored pile, ensuring concentricity with the upper chuck 1. Then, precast retaining panels 4 are installed sequentially in the gap between the upper chuck 1 and the lower chuck 2. The precast retaining panels 4 consist of trapezoidal retaining panels 41 and inverted trapezoidal retaining panels 42, forming a forward and reverse cooperative installation. The entire precast protective plate 4 forms a frustum-shaped structure with a small upper opening and a large lower opening. Because the layering depth will be accumulated later, a portion of the lower precast protective plate 4 will abut against the bottom of the lower chuck 2. The outer base of the lower chuck 2 will bear the load with the steps of the foundation pile, thus accumulating the frustum-shaped structure until the required depth for the bored pile is reached. After the trapezoidal protective plate 41 and the inverted trapezoidal protective plate 42 are assembled, the joints between the protective plates need to be sealed. Otherwise, water accumulated in the pit wall will flow into the protective wall from the joints due to pressure. Therefore, a sealing element 5 is installed to seal the joints, as the protective wall is buried later. Inside the foundation pit, traditional sealing structures are difficult to achieve absolute sealing. Therefore, the principle of concrete pouring is still used to seal the joints. External operators mix the mortar evenly and pour it into the entire circle of pouring inlets 502. The mortar then flows into the slot 504 along the flow channel, and then continues to flow downward from the flow channel 505 at the junction of the trapezoidal guard plate 41 and the inverted trapezoidal guard plate 42 until it enters the annular groove 506 of the lower chuck 2 and the gap in the slot 22 along the flow channel. Thus, the mortar gradually fills the connection between the precast guard plate 4 and the upper chuck 1 and the lower chuck 2, and the steps... Plate 43 has a certain load-bearing capacity, preventing excessive gaps in the joints from causing mortar to leak out. Therefore, after a period of mortar solidification, the entire trapezoidal guard plate 41 and inverted trapezoidal guard plate 42 directly form an integral structure with the upper chuck 1 and lower chuck 2. Compared with the traditional one-piece casting, this scheme can effectively reduce the construction period of the retaining wall because the mortar solidification time at the joints in the later stage of the overall casting is very short. It also avoids the situation where the internal heat cannot be dissipated during the one-piece casting process of the retaining wall, as well as the situation where uneven casting occurs inside, resulting in pores and low strength. In addition, it can also directly avoid the impact of water accumulation in the foundation pit on the strength of the retaining wall.Simultaneously, after the pouring is completed, leakage detection is carried out on the protective wall. Therefore, insertion pipes 62 are installed. Operators can pour colored detection solution into the fluid tank 61. The detection solution will flow from the positions of multiple insertion pipes 62 into the position of the drainage hole. The drainage hole and the outlet tank 63 are in a conductive state, so the detection solution will gradually seep into the outer area of the protective wall. If there is a certain leakage at the connection, the colored solution will seep out from the gap. Therefore, the construction personnel can inspect or replace the protective wall layer.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A waterproof prefabricated retaining wall chuck sealing connection device, characterized in that, Includes upper chuck (1) and lower chuck (2); Both the upper chuck (1) and the lower chuck (2) are provided with slots (3); A prefabricated guard plate (4) is provided between the upper chuck (1) and the lower chuck (2), and the prefabricated guard plate (4) is composed of multiple arc-shaped plates with circular arc structures; The upper chuck (1) and the lower chuck (2) are provided with mating slots for inserting prefabricated guard plates (4) on their opposite sides. The upper chuck (1) is provided with a sealing element (5) to seal the connection of the prefabricated guard plates (4). The sealing element (5) includes a pouring port (502), which is located on the upper chuck (1). The pouring port (502) is connected to the docking groove into which the precast guard plate (4) is inserted. The mortar is poured at the connection between the pouring port (502) and the docking groove, and the mortar solidifies to form a connection seal between the precast guard plate (4) and the upper chuck (1).
2. The waterproof assembled wall-mounted chuck sealing connection device according to claim 1, characterized in that: The prefabricated guard plate (4) includes a trapezoidal guard plate (41) and an inverted trapezoidal guard plate (42). The trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) are arranged in a staggered circular pattern to form a circular protective wall structure. The inner and outer surfaces of the trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) are provided with stepped pieces (43), and the stepped pieces (43) abut against the upper chuck (1).
3. The waterproof assembled wall-mounted chuck sealing connection device according to claim 2, characterized in that: A circular baffle (501) is connected to the upper chuck (1) via a support block (503). The gap between the baffle (501) and the upper chuck (1) forms a pouring port (502). A slot (504) is provided at the bottom of the upper chuck (1). The top of the precast protective plate (4) is inserted into the inside of the slot (504). The slot (504) is connected to the channel of the pouring port (502).
4. The waterproof assembled wall-mounted chuck sealing connection device according to claim 3, characterized in that: The trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) have arc grooves on their sides, and the arc grooves on the trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) cooperate with each other to form a circular flow channel (505), and the top of the flow channel (505) is connected to the insertion slot (504).
5. The waterproof assembled wall-mounted chuck sealing connection device according to claim 4, characterized in that: The bottom of the trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) are connected to the slot (3) on the lower chuck (2). The lower chuck (2) is provided with a full circle of annular groove (506). The flow channel groove (505) formed on the trapezoidal guard plate (41) and the inverted trapezoidal guard plate (42) is connected to the annular groove (506).
6. The waterproof assembled wall-mounted chuck sealing connection device according to claim 5, characterized in that: The lower chuck (2) is provided with a socket (21), and the socket (21) is provided with a slot (22). The bottom of the inverted ladder guard plate (42) is inserted into the slot (22), and there is a gap after the slot (22) and the inverted ladder guard plate (42) are inserted and engaged.
7. The waterproof assembled wall-mounted chuck sealing connection device according to claim 6, characterized in that: The upper chuck (1) is fitted with a tube (62), the upper chuck (1) is provided with an outlet groove (63), and the tube (62) is provided with a drainage hole.
8. The waterproof prefabricated retaining wall chuck sealing connection device according to claim 7, characterized in that: The insertion tube (62) and outlet groove (63) are provided in multiple sets, and the multiple sets of insertion tubes (62) and outlet grooves (63) are arranged in a circular array with the center of the chuck (1) as the central axis.
9. A waterproof prefabricated retaining wall chuck sealing connection device according to claim 8, characterized in that: The insertion tube (62) is rotatably connected to the upper chuck (1). The inner wall of the upper chuck (1) is connected to a fluid guard plate (6). A fluid groove (61) is provided inside the fluid guard plate (6). The fluid groove (61) is connected to the insertion tube (62).