A station side wall outer pre-grouting leakage prevention device

Abstract

The utility model discloses a kind of station side wall outer pre-grouting leakage prevention and control devices, belong to building construction technical field, including grouting equipment, grouting equipment one end is connected with grouting pipe, grouting pipe one end is connected with open-close valve, the open-close valve bottom is connected with grouting steel pipe, grouting steel pipe outside is equipped with fixed buckle, grouting steel pipe one end is equipped with anti-seepage structure, the anti-seepage structure includes horizontal connector, horizontal connector both ends are equipped with horizontal pipeline, the horizontal pipeline outside is equipped with transparent adhesive tape, the horizontal pipeline one end is connected with open grouting pipe. Device simple combination, easy operation, set up anti-seepage structure, effectively fill the gap between waterproofing membrane and ground wall foundation, strengthen the integrity of waterproofing membrane layer, ensure that side wall waterproof system effectively play a role, reduce the input of leakage water management when using later, convenient for later station use.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a pre-grouting device for preventing leakage on the side wall of a station. Background Technology

[0002] Leakage prevention devices refer to a collective term for a series of facilities, materials, components, and systems specifically designed to prevent and control the unintended flow of liquids or gases through building structures, components, or joints. They are mainly used in areas such as exterior wall waterproofing, foundation slab waterproofing, construction joint waterproofing strips, waterproof sleeves for pipes penetrating walls, and sump pits. Currently, during subway construction, station sidewalls typically employ a waterproofing system combining structural self-waterproofing and external waterproofing. The external waterproofing usually utilizes a waterproof membrane layer. However, during the application of this membrane, uneven surface quality of the diaphragm wall base after excavation can lead to problems such as poor adhesion between the membrane and the base, and weak joints at membrane overlaps. This can cause localized failure of the external waterproofing on the station sidewalls, increasing water leakage and subsequent repair costs. Therefore, a simple and practical pre-grouting device for station sidewalls is needed to effectively fill the gaps between the waterproof membrane and the diaphragm wall foundation, strengthen the integrity of the waterproof membrane layer, and ensure the effective functioning of the sidewall waterproofing system. This would significantly improve the quality of the sidewall waterproofing system and reduce the need for subsequent water leakage repair.

[0003] Therefore, this utility model provides a pre-grouting device for preventing leakage on the side wall of a station to solve the above problems. Utility Model Content

[0004] This utility model provides a pre-grouting device for preventing leakage on the exterior of the side wall of a station, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-grouting and seepage prevention device for the exterior of a station side wall, comprising a grouting device, one end of which is connected to a grouting pipe, one end of which is connected to an on / off valve, the bottom of which is connected to a grouting steel pipe, a fixing buckle sleeved on the outside of the grouting steel pipe, an anti-seepage structure installed at one end of the grouting steel pipe, the anti-seepage structure comprising a horizontal connector, horizontal pipes installed at both ends of the horizontal connector, transparent tape on the outside of the horizontal pipes, and an open grouting pipe connected to one end of the horizontal pipes.

[0006] As a preferred technical solution of this application, the top of the grouting equipment is fixedly connected to a port, and the port is movably connected to one end of the grouting pipe.

[0007] As a preferred technical solution of this application, the opening and closing valve includes a valve body, a suitable sealing cover is fixedly connected to the outside of the valve body, a valve core is rotatably connected to the center position inside the valve body, a valve stem is fixedly connected to the outer wall of the valve core, the valve stem extends to the outside of the valve body, and a handwheel is fixedly installed at its top end.

[0008] As a preferred technical solution of this application, the top end of the grouting steel pipe is connected to the inside of the on / off valve, the grouting steel pipe extends vertically into the horizontal pipeline inside the bottom seepage prevention structure, and a fixing buckle is movably installed on the outside of the grouting steel pipe.

[0009] As a preferred technical solution of this application, both ends of the horizontal pipe in the seepage prevention structure are provided with threaded pipes, the threaded pipes are adapted to and movably connected to the outside of the horizontal pipe, the outer wall of the horizontal pipe is covered with transparent tape, and one end of the horizontal pipe is adapted to and rotatably connected to the port of the grouting pipe.

[0010] As a preferred technical solution of this application, sealing rings are provided at the connection points of the horizontal pipeline and the horizontal connector, the connection points of the horizontal pipeline and the perforated grouting pipe, and the connection points of the horizontal pipeline and the grouting steel pipe.

[0011] The device is easy to manufacture and can be processed as needed. It can be easily combined with common construction equipment, is easy to operate, practical and reliable. It can significantly improve the quality of the side wall waterproofing system, significantly reduce the number of leakage points in the side wall structure in the later stage, greatly reduce the investment in water leakage control in the later stage of use, and bring great convenience to the later use of the station.

[0012] A seepage-proof structure is set up. Before the construction of the side wall waterproof membrane, grouting pipelines are pre-fixed on the diaphragm wall. After the completion of the main structure of the station, grouting is carried out using the pre-set grouting pipeline system. This overcomes the problems of poor adhesion between the waterproof membrane and the base surface and weak joint quality at the overlap of the membrane during the construction of the side wall waterproof membrane. It can effectively fill the gap between the waterproof membrane and the diaphragm wall foundation, strengthen the integrity of the waterproof membrane layer, ensure that the side wall waterproof system plays an effective role, significantly reduce the number of leakage points in the side wall structure in the later stage, reduce the investment in water leakage treatment in the later use, and facilitate the later use of the station. Attached Figure Description

[0013] Figure 1 This is the overall elevation view of the present utility model; Figure 2 This is a schematic diagram of the overall design of this utility model; Figure 3 This is a schematic diagram of the seepage-proof structure of this utility model; Figure 4 for Figure 3 A magnified structural diagram at point A.

[0014] In the picture: 1. Grouting equipment; 2. Grouting pipe; 3. On / off valve; 301. Valve body; 302. Sealing cap; 303. Valve core; 304. Valve stem; 305. Handwheel; 4. Grouting steel pipe; 5. Fixing buckle; 6. Anti-seepage structure; 601. Horizontal pipeline; 602. Horizontal connector; 603. Transparent tape; 604. Perforated grouting pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides a pre-grouting device for preventing leakage on the exterior of the station side wall, such as... Figure 1 and Figure 4 As shown, the device includes a grouting device 1, with a grouting pipe 2 connected to one end of the grouting device 1, an on / off valve 3 connected to one end of the grouting pipe 2, a grouting steel pipe 4 connected to the bottom of the on / off valve 3, a fixing buckle 5 fitted on the outside of the grouting steel pipe 4, and an anti-seepage structure 6 installed at one end of the grouting steel pipe 4. The anti-seepage structure 6 includes a horizontal connector 602, with horizontal pipes 601 installed at both ends of the horizontal connector 602, transparent tape 603 on the outside of the horizontal pipes 601, and an open grouting pipe 604 connected to one end of the horizontal pipes 601.

[0017] The top of the grouting equipment 1 is fixedly connected to a port, and the port is movably connected to one end of the grouting pipe 2.

[0018] The on / off valve 3 includes a valve body 301, a matching sealing cover 302 is fixedly connected to the outside of the valve body 301, a valve core 303 is rotatably connected to the center position inside the valve body 301, a valve stem 304 is fixedly connected to the outer wall of the valve core 303, the valve stem 304 extends to the outside of the valve body 301, and a handwheel 305 is fixedly installed at the top.

[0019] When using this device, firstly, the grout mixed in the specified ratio is pumped out through the grouting equipment 1. The grout flows through the connected grouting pipe 2 and then through the on / off valve 3. The operator can control the flow of the grout through the on / off valve 3. After passing through the on / off valve 3, the grout enters the vertically installed grouting steel pipe 4. The steel pipe is the channel for guiding the grout from the ground surface to a predetermined position deep inside the side wall. When grouting is required, the handwheel 305 is rotated clockwise or counterclockwise. The rotation of the handwheel 305 drives the valve stem 304 fixed to it to rotate. The rotation of the valve stem 304 causes the valve core 303 at its bottom to rotate and displace, opening the channel inside the valve body 301. The grout can then pass smoothly through the opened valve channel. Rotating the handwheel 305 in the opposite direction resets the valve core 303, closing the flow channel and stopping the flow of grout.

[0020] Furthermore, in order to improve the operational effectiveness of the device, such as Figure 2 and Figure 3 As shown, the top end of the grouting steel pipe 4 is connected to the inside of the on / off valve 3, and the grouting steel pipe 4 extends vertically into the horizontal pipe 601 in the bottom seepage prevention structure 6. The grouting steel pipe 4 is movably installed with a fixing buckle 5.

[0021] The horizontal pipe 601 in the seepage prevention structure 6 is provided with threaded pipes at both ends. The threaded pipes are adapted to the external of the horizontal pipe 601 and are movably connected. The outer wall of the horizontal pipe 601 is covered with transparent tape 603. One end of the horizontal pipe 601 is adapted to the port of the perforated grouting pipe 604 and is rotatably connected.

[0022] Sealing rings are provided at the connection points of horizontal pipe 601 and horizontal connector 602, horizontal pipe 601 and perforated grouting pipe 604, and horizontal pipe 601 and grouting steel pipe 4.

[0023] In use, the grouting steel pipe 4 serves as the main vertical conveying channel. Its upper end is connected to the outlet of the on / off valve 3, and its lower end is vertically inserted into the soil and connected to the underground horizontal pipeline 601. Under the action of gravity and pump pressure, the grout flows downward along the steel pipe. The fixing clips 5 clamp and fix the steel pipe at multiple points to prevent the steel pipe from shaking, sinking, or shifting due to grout pressure, equipment weight, or external disturbances, thus ensuring the accuracy of the grouting position. The horizontal pipeline 601 is connected to the horizontal connector 602 and the opening at both ends through threaded pipes. The grouting pipe 604 is reliably connected, and transparent tape 603 is wrapped around the assembled pipeline system. Before grouting, this process can effectively prevent soil and debris from entering and clogging the small holes on the grouting pipe 604. During grouting, when the pressure is built up to a certain value, the grout will break through this thin tape barrier and seep out evenly from the small holes, ensuring that the grout forms a continuous, strip-shaped or sheet-shaped reinforced seepage barrier in the horizontal direction, thereby ensuring the effective progress of the work, improving the work effect, and reducing the frequency of subsequent leakage treatment.

[0024] Working principle: Before the construction of the waterproof membrane on the side walls, horizontal pipes 601 are pre-fixed on the diaphragm wall in conjunction with fixing clips 5. After the completion of the main structure of the station, grouting is carried out using the pre-set pipe system. The grout is formed by horizontally perforated grouting pipes 604 and vertically perforated steel pipes 4. Horizontal pipes 601 are set at 2 meters on the bottom slab and 1 meter on the middle slab, using 20mm diameter perforated steel pipes 4. Vertical pipes 4 are set at 5-meter lengths on both sides, using 20mm diameter steel pipes, and are set at 10-meter intervals. Horizontal connectors 602 are pre-installed at the connection points with the horizontal pipes 601. The grouting steel pipes 4 extend 1 meter into the top surface of the roof slab to facilitate subsequent grouting. The grouting pipeline system is fixed to the diaphragm wall foundation by fixing clips 5. Before installation, a layer of transparent tape 603 is wrapped around the perforated grouting pipe 604 to prevent pipe blockage. The top plate of the vertical grouting pipe 2 is equipped with an on / off valve 3 to control the grouting volume. After the main structure of the station is completed, the grouting equipment 1 is connected to the preset pipeline system through the grouting pipe 2, and the on / off valve 3 is opened to perform grouting. After the grouting volume reaches the requirement, the grouting is stopped and the on / off valve 3 is closed to complete the grouting operation. This device can effectively fill the gap between the waterproof membrane and the diaphragm wall foundation, strengthen the integrity of the waterproof membrane layer, ensure the effective functioning of the side wall waterproofing system, improve the quality of the side wall waterproofing system, and reduce the problem of water leakage during later use.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pre-grouting device for preventing leakage on the exterior of a station side wall, characterized in that: The device includes a grouting device (1), one end of which is connected to a grouting pipe (2), one end of which is connected to an on / off valve (3), the bottom of which is connected to a grouting steel pipe (4), a fixing buckle (5) is provided on the outside of the grouting steel pipe (4), and a seepage prevention structure (6) is installed on one end of the grouting steel pipe (4). The seepage prevention structure (6) includes a horizontal connector (602), both ends of which are connected to horizontal pipes (601), the outside of which is provided with transparent tape (603), and one end of which is connected to an open grouting pipe (604).

2. The pre-grouting and seepage prevention device for the external side wall of a station according to claim 1, characterized in that: The top of the grouting device (1) is fixedly connected to a port, and the port is movably connected to one end of the grouting pipe (2).

3. The pre-grouting and seepage prevention device for the external side wall of a station according to claim 1, characterized in that: The valve (3) includes a valve body (301), a matching sealing cover (302) is fixedly connected to the outside of the valve body (301), a valve core (303) is rotatably connected to the center of the inside of the valve body (301), a valve stem (304) is fixedly connected to the outer wall of the valve core (303), the valve stem (304) extends to the outside of the valve body (301), and a handwheel (305) is fixedly installed at the top.

4. The pre-grouting and seepage prevention device for the external side wall of a station according to claim 1, characterized in that: The top end of the grouting steel pipe (4) is connected to the inside of the opening and closing valve (3). The grouting steel pipe (4) extends vertically into the horizontal pipeline (601) in the bottom seepage prevention structure (6). The grouting steel pipe (4) is movably installed with a fixing buckle (5).

5. A pre-grouting and seepage prevention device for the external side wall of a station according to claim 1, characterized in that: The horizontal pipe (601) in the seepage prevention structure (6) is provided with threaded pipes at both ends. The threaded pipes are adapted to be movably connected to the outside of the horizontal pipe (601). The outer wall of the horizontal pipe (601) is covered with transparent tape (603). One end of the horizontal pipe (601) is adapted to be rotatably connected to the port of the perforated grouting pipe (604).

6. The pre-grouting and seepage prevention device for the external side wall of a station according to claim 1, characterized in that: Sealing rings are provided at the connection points of the horizontal pipe (601) and the horizontal connector (602), the connection points of the horizontal pipe (601) and the perforated grouting pipe (604), and the connection points of the horizontal pipe (601) and the grouting steel pipe (4).

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