Water stop belt for tunnel

Abstract

The utility model relates to the technical field of water-stop belts, and provides a water-stop belt for a tunnel, which is arranged between a tunnel surrounding rock and a lining structure and comprises a base plate, the anti-crystallization plate is arranged on the base plate, and a drainage channel is formed between the anti-crystallization plate and the drainage plate; the base plate is detachably arranged on the anchoring part, and the anchoring part is arranged on a tunnel surrounding rock and / or a lining structure. By means of the technical scheme, the problem that in the prior art, the water stop belt for the tunnel may be crystallized under the specific low-temperature condition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterstop strips, and in particular to a waterstop strip for a tunnel. Background Art

[0002] Tunnel waterstop is a waterproof material specially used in tunnel construction. Its main function is to form a reliable waterproof barrier between the tunnel surrounding rock and the lining structure to prevent groundwater, seepage water, etc. from eroding and damaging the tunnel structure.

[0003] Tunnel waterstops may face crystallization problems under certain low temperature conditions, especially when the waterstop material contains moisture. Low temperatures may cause the moisture to freeze and form ice crystals, which will adversely affect the performance and life of the waterstop. Utility Model Content

[0004] The utility model provides a waterstop for a tunnel, which solves the problem in the related art that the waterstop for a tunnel may face crystallization under specific low temperature conditions.

[0005] The technical solution of the utility model is as follows:

[0006] A tunnel water stop, installed between the tunnel surrounding rock and the lining structure, comprising:

[0007] substrate;

[0008] An anti-crystallization plate is disposed on the substrate, and a drainage channel is formed between the anti-crystallization plate and the substrate;

[0009] Anchor, the base plate is detachably arranged on the anchor, and the anchor is arranged on the tunnel surrounding rock and lining structure.

[0010] Preferably, the substrate comprises:

[0011] The main body is H-shaped, the anti-crystallization plate is arranged on the main body, the drainage channel is located between the main body and the anti-crystallization plate, and an insertion groove is formed under the base plate, and the insertion groove is used to accommodate the construction template.

[0012] Preferably, the substrate further comprises:

[0013] A water stop plate is arranged at the bottom of the base plate, the water stop plate is arranged vertically with the main body, the main body is arranged on the anchor through the water stop plate, and the water stop plate and the main body are an integrated structure.

[0014] Preferably, it also includes:

[0015] The water stop edge has a plurality of strips, and the plurality of water stop edges are arranged on the water stop plate at intervals, and the water stop edges are arranged along the length direction of the water stop plate.

[0016] Preferably, the anchoring member comprises:

[0017] A fixed plate having a slide groove;

[0018] There are several clamps, each of which has a clamping end and a connecting end, the water stop plate is arranged on the clamping end, and the connecting end is slidably arranged in the slide groove.

[0019] Preferably, the clamp comprises:

[0020] splint, C-shaped;

[0021] A spring pressing piece is arranged on the clamping plate, and the spring pressing piece is close to the connecting end, and the spring pressing piece is inclined toward the inner side of the clamping plate;

[0022] A pressure rod, disposed on the side wall of the clamping plate, the pressure rod passes through the side wall of the clamping plate and is threadedly connected to the side wall of the clamping plate;

[0023] A connecting rod is located at the connecting end, one end of the connecting rod is arranged on the clamping plate, and the other end is slidably arranged on the fixing plate.

[0024] Preferably, it also includes:

[0025] There are a plurality of anchor rods, and the plurality of anchor rods are arranged on the fixing plate at intervals.

[0026] Preferably, the fixing plate has a plurality of grouting holes.

[0027] Preferably, the spring pressing sheet and the clamping plate are an integrated structure, and the clamping plate has a through groove at a position close to the spring pressing sheet.

[0028] The working principle and beneficial effects of the utility model are:

[0029] The utility model effectively solves the crystallization problem that may occur in the existing waterstop under low temperature conditions by adopting a base plate, an anti-crystallization plate and a drainage channel, improves its waterproof performance and service life in cold environments, and provides reliable and long-term waterproof protection for tunnel projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0031] Figure 1 It is a schematic diagram of the structure of the water stop belt, surrounding rock and lining of the utility model;

[0032] Figure 2This is a schematic diagram of the structure of the water stop belt of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the water stop belt and anchoring piece of the utility model;

[0034] Figure 4 This is a schematic diagram of the structure of the anchor member of the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the utility model after the water stop belt is installed.

[0036] In the figure: 1. base plate; 101. main body; 102. insertion groove; 103. water stop plate; 104. water stop edge; 2. anti-crystallization plate; 3. drainage channel; 4. anchor; 41. clamping end; 42. connecting end; 401. clamp; 402. spring pressure plate; 403. pressure rod; 404. connecting rod; 5. anchor rod; 6. fixing plate; 601. slide groove; 602. grouting hole; 7. surrounding rock and lining structure; 8. construction template. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0038] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this article, 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 this utility model can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Reference Figure 1~Figure 2 , which is an embodiment of the utility model, proposes a tunnel waterstop, which is installed between the tunnel surrounding rock and the lining structure 7, including: a base plate 1; an anti-crystallization plate 2, which is arranged on the base plate 1, and a drainage channel 3 is formed between the anti-crystallization plate 2 and the base plate 1; an anchor 4, the base plate 1 is detachably arranged on the anchor 4, and the anchor 4 is arranged on the tunnel surrounding rock and the lining structure 7.

[0042] In the above scheme, the substrate 1 is used as the basic structure of the water stop, and is made of a polymer material (such as rubber, polyvinyl chloride, EVA, etc.) with good elasticity and tensile strength, which can adapt to the deformation and stress changes that may occur in tunnel construction. The surface of the substrate 1 is specially treated, such as coating an antifreeze coating or adding an antifreeze additive, to reduce its brittle tendency in a low temperature environment and maintain good elasticity and waterproof performance. The anti-crystallization plate 2 is arranged on the substrate 1 and is closely combined with the substrate 1. The anti-crystallization plate 2 is made of a material with excellent antifreeze performance, such as modified rubber, low-temperature resistant plastic or a special antifreeze polymer, which can maintain good elasticity and toughness in a low temperature environment and is not easy to become brittle or cracked due to freezing. A drainage channel 3 is formed between the anti-crystallization plate 2 and the substrate 1. The channel is designed as a groove structure, allowing the water that penetrates into the water stop to be discharged along the drainage channel 3, reducing the possibility of water being retained in the water stop and reducing the risk of crystallization. Among them, the anti-crystallization plate 2 has the function of water seepage, such as opening a water seepage hole.

[0043] Secondly, an anti-backflow structure, such as an inclined groove, can be provided in the drainage channel 3 to prevent external moisture from reversely entering the waterstop, thereby ensuring the effectiveness of the drainage channel 3 and the waterproof performance of the waterstop. The substrate 1 is detachably arranged on the tunnel surrounding rock and / or lining structure through the anchor 4, which is convenient for the installation, replacement or maintenance of the waterstop, and ensures a firm connection between the waterstop and the surrounding rock or lining. The tunnel waterstop effectively solves the crystallization problem that may occur in the existing waterstop under low temperature conditions by adopting the design of antifreeze substrate 1, anti-crystallization plate 2, drainage channel 3 and detachable anchor 4, improves its waterproof performance and service life in cold environment, and provides reliable and long-term waterproof protection for tunnel engineering. At the same time, the waterstop has a reasonable structure, is easy to install, and has good engineering application prospects.

[0044] Furthermore, the substrate 1 includes: a main body 101, which is H-shaped, an anti-crystallization plate 2 is arranged on the main body 101, a drainage channel 3 is located between the main body 101 and the anti-crystallization plate 2, and an insertion groove 102 is formed under the substrate 1, and the insertion groove 102 is used to accommodate the construction template 8.

[0045] In the above scheme, the main body 101 is H-shaped. This structural design has high bending moment and shear resistance, can effectively resist the stress transfer between the tunnel surrounding rock and the lining structure 7, and ensure the stability of the waterstop in a complex stress environment. The contact surface between the anti-crystallization plate 2 and the main body 101 is specially treated, such as coating with an antifreeze coating or adding antifreeze additives, to reduce its brittle tendency in a low temperature environment and maintain good elasticity and waterproof properties. An insertion groove 102 is formed under the substrate 1, and the insertion groove 102 is used to accommodate the construction template 8, so that the waterstop can fit closely with the construction template 8 during installation, thereby improving the density and waterproof effect of the connection between the waterstop and the surrounding rock or lining. The size and shape of the insertion groove 102 should match the construction template 8 to facilitate the insertion and removal of the construction template 8, while ensuring a connection with a small gap between the waterstop and the surrounding rock or lining. During installation, first insert the end template into the insertion groove 102 formed by the lower part of the H-shaped waterstop frame, and then fix the construction template 8. The waterstop is installed. The construction is very convenient, which solves the problem that the existing embedded waterstop is difficult to install.

[0046] Furthermore, the substrate 1 also includes: a water stop plate 103, which is arranged at the bottom of the substrate 1, and the water stop plate 103 is arranged vertically with the main body 101. The main body 101 is arranged on the anchor 4 through the water stop plate 103. The water stop plate 103 and the main body 101 are an integrated structure.

[0047] In the above scheme, the water stop plate 103 is arranged at the bottom of the base plate 1 and arranged vertically with the main body 101 to form a bottom waterproof layer of the water stop strip, which can effectively prevent groundwater or leakage water from penetrating along the bottom of the water stop strip. The water stop plate 103 is made of materials with good waterproof performance, such as waterproof rubber, polyurethane, polymer composite materials, etc., which can withstand the pressure and corrosion of groundwater and maintain a long-term waterproof effect. The water stop plate 103 and the main body 101 are an integrated structure, that is, the water stop plate 103 and the main body 101 are formed into a whole through a one-time molding process or welding, bonding and other connection methods, which ensures the integrity of the water stop strip structure and the continuity of waterproof performance. The connection between the water stop plate 103 and the main body 101 is strengthened, such as thickening, reinforcing ribs, etc., to ensure that the water stop plate 103 and the main body 101 will not separate due to stress during the tunnel construction process, and maintain the overall stability of the water stop strip.

[0048] Furthermore, it also includes: a water stop edge 104 having a plurality of strips, wherein the plurality of water stop edges 104 are arranged on the water stop plate 103 at intervals, and the water stop edges 104 are arranged along the length direction of the water stop plate 103 .

[0049] In the above scheme, the waterstop rib 104 has a plurality of strips, and the plurality of waterstop ribs 104 are arranged at intervals on the waterstop plate 103. The waterstop ribs 104 are arranged along the length direction of the waterstop plate 103 to form a bottom anti-seepage structure of the waterstop belt, which can effectively prevent groundwater or seepage water from penetrating along the bottom of the waterstop plate 103. By adding the waterstop rib 104, an integrated structure of the waterstop rib 104 and the waterstop plate 103 is formed, thereby improving the bottom waterproof performance and overall stability of the waterstop belt. At the same time, through the connection between the waterstop rib 104 and the anchor 4, the waterstop belt is firmly fixed to the tunnel surrounding rock and / or lining structure, providing a more reliable and efficient waterproof protection for the tunnel project.

[0050] Reference Figure 3~Figure 5 Furthermore, the anchor 4 includes: a fixing plate 6 having a slide groove 601; a plurality of clamps 401, each of which has a clamping end 41 and a connecting end 42, the water stop plate 103 is arranged on the clamping end, and the connecting end 42 is slidably arranged in the slide groove 601.

[0051] In the above solution, the fixing plate 6 is provided with a slide groove 601, the shape and size of which match the connection end of the clamp 401, so as to ensure that the clamp 401 can slide freely in the slide groove 601. During installation, the clamps 401 are clamped on the water stop plate 103 at equal intervals, but the clamps 401 are not clamped on the water stop edge 104.

[0052] Furthermore, the clamp 401 includes: a clamping plate, which is C-shaped; a spring pressure piece 402, which is arranged on the clamping plate, and the spring pressure piece 402 is close to the connection end, and the spring pressure piece 402 is inclined to the inner side of the clamping plate; a pressure rod 403, which is arranged on the side wall of the clamping plate, and the pressure rod 403 passes through the side wall of the clamping plate and is threadedly connected with the side wall of the clamping plate; a connecting rod 404, which is located at the connection end, and one end of the connecting rod 404 is arranged on the clamping plate, and the other end is slidably arranged on the fixed plate 6. Furthermore, the spring pressure piece 402 and the clamping plate are an integrated structure, and the clamping plate has a through groove near the spring pressure piece 402.

[0053] In the above scheme, the splint is cut at the position of the through groove to form a spring pressure piece 402. The material of the spring pressure piece 402 is the same as that of the splint. During construction, concrete or other materials will enter the through groove and the splint, and be fixed with the pressure rod 403 and the connecting rod 404, thereby improving the connection strength between the clamp 401 as a whole and the tunnel surrounding rock and / or lining structure. At the same time, the side of the waterstop is pressed tightly. Compared with the existing method of directly fixing with bolts, the waterstop connected in this way is less likely to be damaged.

[0054] The invention also includes: a plurality of anchor rods 5, wherein the plurality of anchor rods 5 are arranged at intervals on the fixing plate 6. The fixing plate 6 has a plurality of grouting holes 602. The fixing plate 6 is fixed to the surrounding rock and / or lining structure of the tunnel by the anchor rods 5, thereby improving the connection strength of the fixing plate 6, and the grouting holes 602 can also allow concrete to enter under the fixing plate 6, thereby preventing gaps around the fixing plate 6 from seeping water.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water stop for a tunnel, installed between the tunnel surrounding rock and the lining structure (7), characterized in that: include: base(1); An anti-crystallization plate (2) is arranged on the substrate (1), and a drainage channel (3) is formed between the anti-crystallization plate (2) and the substrate (1); An anchor (4), the base plate (1) is detachably arranged on the anchor (4), and the anchor (4) is arranged on the tunnel surrounding rock and the lining structure (7).

2. A tunnel waterstop according to claim 1, characterized in that: The substrate (1) comprises: The main body (101) is H-shaped, the anti-crystallization plate (2) is arranged on the main body (101), the drainage channel (3) is located between the main body (101) and the anti-crystallization plate (2), and an insertion groove (102) is formed below the base plate (1), and the insertion groove (102) is used to accommodate a construction template (8).

3. A tunnel waterstop according to claim 2, characterized in that: The substrate (1) further comprises: A water stop plate (103) is arranged at the bottom of the base plate (1); the water stop plate (103) is arranged vertically with the main body (101); the main body (101) is arranged on the anchor (4) through the water stop plate (103); the water stop plate (103) and the main body (101) are an integrated structure.

4. A tunnel waterstop according to claim 3, characterized in that: Also includes: The water stop ribs (104) have a plurality of strips, and the plurality of water stop ribs (104) are arranged at intervals on the water stop plate (103). The water stop ribs (104) are arranged along the length direction of the water stop plate (103).

5. A tunnel waterstop according to claim 3, characterized in that: The anchor (4) comprises: A fixed plate (6) having a slide groove (601); There are a plurality of clamps (401), each of which has a clamping end (41) and a connecting end (42), the water stop plate (103) is arranged on the clamping end (41), and the connecting end (42) is slidably arranged in the slide groove (601).

6. A tunnel waterstop according to claim 5, characterized in that: The clamp (401) comprises: splint, C-shaped; A spring pressing piece (402) is arranged on the clamping plate, and the spring pressing piece (402) is close to the clamping end (41), and the spring pressing piece (402) is inclined toward the inner side of the clamping plate; A pressure rod (403) is arranged on the side wall of the clamping plate, and the pressure rod (403) passes through the side wall of the clamping plate and is threadedly connected to the side wall of the clamping plate; A connecting rod (404) is located at the connecting end (42); one end of the connecting rod (404) is arranged on the clamping plate, and the other end is slidably arranged on the fixing plate (6).

7. A tunnel waterstop according to claim 5, characterized in that: Also includes: There are a plurality of anchor rods (5), and the plurality of anchor rods (5) are arranged on the fixing plate (6) at intervals.

8. A tunnel waterstop according to claim 5, characterized in that: The fixing plate (6) has a plurality of grouting holes (602).

9. A tunnel waterstop according to claim 6, characterized in that: The spring pressing sheet (402) and the clamping plate are an integrated structure, and the clamping plate has a through groove at a position close to the spring pressing sheet (402).

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