Early warning and treatment system for water seepage at bottom of large shield tunnel opening component

Abstract

The invention discloses an early warning and treatment system for water seepage at the bottom of an opening part of a large shield tunnel, which relates to the technical field of building construction and comprises an opening part bottom plate special-shaped design, an annular steel plate filled in a hollow area of the opening part bottom plate, a rib-shaped steel plate and a water swelling rubber strip filled in the middle of a steel structure. A certain distance needs to be preset between the starting point of the hollow area of the bottom plate of the opening part and the side wall of the opening part so as to meet the requirement that the opening part is stable, the center of the hollow area of the opening part is aligned with the center of the duct piece, a duct piece grouting hole is located in the range of the hollow area, the hollow area is filled with a rib-shaped steel structure, and the rib-shaped steel structure can be taken out of the hollow area of the bottom plate of the opening part. The middle of the rib-shaped steel structure is filled with a water-swelling rubber strip, monitoring facilities are arranged at the top of the opening part at intervals, when the shield segment leaks water, the water-swelling rubber strip swells and protrudes when encountering water, an alarm is given after monitoring and shooting abnormity, a worker enters a site to conduct grouting and water stopping, and the annular steel plate, the steel rib plate and the water-swelling rubber strip are taken out; and grouting and water stopping are conducted on the water leakage pipe pieces.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a water seepage early warning and control system for the bottom of a large shield tunnel opening component. Background Art

[0002] In modern tunnel construction, shield method has become a common and effective construction method, especially in the construction of urban underground transportation facilities. The construction of shield tunnels usually requires a large shield machine to splice the tunnel segments one by one to eventually form a complete tunnel structure. However, during the construction and operation of shield tunnels, water seepage at the bottom of the tunnel opening has always been an important factor affecting the long-term stability and safety of the tunnel.

[0003] In shield tunnel construction, especially at the tunnel entrance, water and soil infiltration is common due to the complex geological environment and abundant surrounding water sources. Water infiltration not only corrodes the tunnel structure, but also affects the stability of the surrounding soil layer, leading to adverse consequences such as settlement and displacement. In addition, water infiltration may also cause damage and deformation of the tunnel segments, thus causing a series of safety hazards such as structural instability.

[0004] In order to deal with these problems, waterproof materials and grouting technology are usually used during tunnel construction to prevent water seepage. Common waterproofing measures include the use of high-strength waterproof membranes, grouting reinforcement and other technologies. However, these traditional methods often have certain limitations. First, after the tunnel is put into use, it is difficult to effectively warn and monitor the water seepage problem; second, traditional repair methods usually rely on manual judgment, which may result in a long repair cycle and untimely repair, leading to further expansion of leakage; finally, since the source of the water flow and the repair site cannot be accurately controlled during the repair process, the problem is often unable to be completely eradicated.

[0005] Therefore, the existing technology has not yet been able to provide a complete system that can monitor water seepage in real time and effectively repair it. In addition, due to its particularity, the connection between the tunnel segments and the openings often faces more complex leakage problems, which puts higher demands on the existing repair technology. In order to solve these problems, researchers are constantly exploring new solutions, hoping to ensure the long-term stability and safety of the tunnel during construction and use through more accurate monitoring methods and efficient repair technologies. Summary of the invention

[0006] In view of the above technical problems, the present invention discloses a water seepage early warning and control system for the bottom of a large shield tunnel opening subassembly, comprising a shield segment, a subassembly body is arranged in the shield segment, a monitoring unit is arranged in the subassembly body, and a control component is arranged in the subassembly body, and every two pieces of the subassembly body are assembled, and the middle part of the subassembly body is aligned with the annular seam between the shield segments when the two shield segments are assembled, so that the grouting holes of the segment are located within the range of the control component.

[0007] Furthermore, the treatment component includes a hollow hole arranged on the bottom plate of the port member body. After every two pieces of the port member body are assembled, the two hollow holes form a hollow area of ​​the bottom plate of the port member, and a filling part is arranged in the hollow area of ​​the bottom plate of the port member.

[0008] Furthermore, the filling part includes an annular steel plate, which is arranged along the inner circle edge of the hollow area of ​​the bottom plate of the port piece, and a plurality of steel ribs are welded inside the annular steel plate, and the plurality of steel ribs are welded to each other in an staggered manner, and the plurality of welded steel ribs divide the annular steel plate into a plurality of spaces, and the annular steel plate is not connected to the port piece body and the shield segment, and the steel ribs are not connected to the port piece body and the shield segment.

[0009] Furthermore, the filling part also includes a water-swellable rubber strip, and the water-swellable rubber strip fills a plurality of spaces formed by a plurality of steel ribs and the annular steel plate.

[0010] Furthermore, a starting point of the hollowed-out area of ​​the bottom plate of the port piece is at a certain distance from a side wall of the port piece body.

[0011] Furthermore, the monitoring unit includes a monitoring probe, which is fixedly installed in the main body of the port member, and a monitoring probe is arranged at every other end in the main body of the port member.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention has a real-time early warning function. The monitoring probe monitors the leakage inside the main body of the port member in real time. Once water seepage or swelling of the rubber strip occurs, the system can issue an early warning in time. This provides sufficient reaction time for the staff, and can handle the leakage before it expands, avoiding the greater structural risk and instability of the surrounding soil layer caused by the leakage; (2) The present invention has efficient treatment and repair. After the leakage occurs, the design of the filling part provides a mechanism for easy and rapid repair. When the leakage is detected, the staff can repair it in time by disassembling and grouting the reinforced structure, avoiding the traditional repair method that may require a long construction period, and effectively reducing the long-term impact of the leakage; (3) The present invention prevents structural instability and continuous stability. The preset distance design of the hollow area of ​​the bottom plate of the port member avoids the risk of structural instability. In addition, the separation space design of the annular steel plate and the steel rib plate enables the treatment component to operate freely without affecting other structures, which helps to maintain the long-term stability of the port member and the shield segment, and ensure the safety and reliability of the tunnel during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a cross-sectional schematic diagram of the port member of the present invention.

[0015] Figure 3 This is a large-scale drawing of the hollowed-out area of ​​the bottom plate of the opening member of the present invention.

[0016] Figure numbers: 1-annular seam between shield segments; 2-shield segment; 3-port member body; 4-hollow area of ​​the port member bottom plate; 5-annular steel plate; 6-water-swelling rubber strip; 7-steel rib plate; 8-monitoring probe. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] Example: Figure 1-Figure 3 As shown, a water seepage warning and control system for the bottom of a large shield tunnel opening sub-assembly comprises a shield segment 2, a sub-assembly body 3 is arranged in the shield segment 2, the middle part of the sub-assembly body 3 is aligned with the annular seam 1 between the shield segments when two shield segments 2 are assembled, a monitoring part is arranged in the sub-assembly body 3, a control component is arranged in the sub-assembly body 3, and every two sub-assembly bodies 3 are assembled. Through the above scheme, the monitoring part can conveniently monitor and observe the situation of the control component in the sub-assembly body 3, thereby giving an early warning to the staff, so that the staff can make repairs in time.

[0021] The treatment component includes a hollow hole arranged on the bottom plate of the port body 3. After every two pieces of the port body 3 are assembled, the two hollow holes form a hollow area 4 of the bottom plate of the port. A filling part is arranged in the hollow area 4 of the bottom plate of the port. Through the above scheme, the monitoring probe 8 can conveniently observe the leakage through the filling part.

[0022] The filling part includes an annular steel plate 5, which is arranged along the inner edge of the hollow area 4 of the bottom plate of the port member. A plurality of steel ribs 7 are welded inside the annular steel plate 5, and the plurality of steel ribs 7 are welded to each other in an interlaced manner. The plurality of welded steel ribs 7 divide the annular steel plate 5 into a plurality of spaces. The annular steel plate 5 is not connected to the port member body 3 and the shield segment 2, and the steel ribs 7 are not connected to the port member body 3 and the shield segment 2. Through the above scheme, when leakage of the shield segment 2 is found, the welding structure of the annular steel plate 5 and the steel ribs 7 is removed, and then grouting reinforcement and water stopping can be continued in a convenient and timely manner.

[0023] The filling part further includes a water-swellable rubber strip 6 , which fills a plurality of spaces formed by the plurality of steel ribs 7 and the annular steel plate 5 .

[0024] The starting point of the hollow area 4 of the bottom plate of the port piece is at a certain distance from the side wall of the main body 3 of the port piece. Through the above scheme, the hollow area 4 of the bottom plate of the port piece is at a preset distance from the side wall of the main body 3 of the port piece to prevent the main body 3 of the port piece from becoming unstable.

[0025] The monitoring unit includes a monitoring probe 8, which is fixedly installed in the mouthpiece body 3. A monitoring probe 8 is set at every other end of the mouthpiece body 3. Through the above scheme, multiple monitoring probes 8 can detect leakage in the mouthpiece body 3 in time.

[0026] Those skilled in the art may make other corresponding changes or deformations to the above technical methods and concepts, and all of these changes or deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A water seepage warning and control system for the bottom of a large shield tunnel opening, characterized in that: The invention comprises a shield segment (2), wherein a port member main body (3) is arranged in the shield segment (2), the middle part of the port member main body (3) is aligned with the annular seam (1) between the shield segments when two shield segments (2) are assembled, a monitoring part is arranged in the port member main body (3), a management component is arranged in the port member main body (3), and every two portions of the port member main body (3) are assembled.

2. A water seepage warning and control system for the bottom of a large shield tunnel opening as claimed in claim 1, characterized in that: The treatment component comprises a hollow hole arranged on the bottom plate of the mouthpiece body (3); after every two pieces of the mouthpiece body (3) are assembled, the two hollow holes form a hollow area (4) of the bottom plate of the mouthpiece, and a filling portion is arranged in the hollow area (4) of the bottom plate of the mouthpiece.

3. A water seepage warning and control system for the bottom of a large shield tunnel opening as claimed in claim 2, characterized in that: The filling portion comprises an annular steel plate (5), the annular steel plate (5) is arranged along the inner edge of the hollow area (4) of the bottom plate of the port member, a plurality of steel ribs (7) are welded inside the annular steel plate (5), the plurality of steel ribs (7) are welded to each other in an interlaced manner, and the plurality of welded steel ribs (7) divide the annular steel plate (5) into a plurality of spaces, the annular steel plate (5) is not connected to the port member body (3) and the shield segment (2), and the steel ribs (7) are not connected to the port member body (3) and the shield segment (2).

4. A water seepage warning and control system for the bottom of a large shield tunnel opening as claimed in claim 3, characterized in that: The filling portion further comprises a water-swellable rubber strip (6), and the water-swellable rubber strip (6) fills a plurality of spaces formed by a plurality of steel ribs (7) and the annular steel plate (5).

5. A water seepage warning and control system for the bottom of a large shield tunnel opening as claimed in claim 4, characterized in that: The starting point of the hollowed-out area (4) of the bottom plate of the port piece is at a certain distance from the side wall of the port piece body (3).

6. A water seepage warning and control system for the bottom of a large shield tunnel opening as claimed in claim 5, characterized in that: The monitoring unit comprises a monitoring probe (8), which is fixedly installed in the mouthpiece body (3), and a monitoring probe (8) is arranged at every other end in the mouthpiece body (3).

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