Water conservancy project diaphragm wall

Abstract

The utility model discloses a water conservancy project anti-seepage wall, and relates to the technical field of anti-seepage walls, in particular to a water conservancy project anti-seepage wall which comprises a guide wall, a steel reinforcement framework, an anti-seepage wall body, a connecting groove and a waterproof asphalt coating, the steel reinforcement framework is arranged on the lower side of a guide wall support, and the anti-seepage wall body is arranged outside the steel reinforcement framework. Connecting grooves are formed in the two sides of the exterior of the diaphragm wall body, waterproof asphalt coatings are arranged on the two sides of the exterior of the diaphragm wall body and the interiors of the connecting grooves, the steel reinforcement framework comprises reinforcing longitudinal bars, main longitudinal bars are arranged on the two sides of the exterior of the reinforcing longitudinal bars, erection bars are arranged on the exterior of the main longitudinal bars, stirrups are arranged on the exterior of the erection bars, and the stirrups are arranged on the exterior of the stirrups. Cross supporting ribs and supporting transverse ribs are arranged between the stirrups. Compared with the prior art, the anti-seepage wall has the advantages that the strength of the anti-seepage wall is enhanced; and the contact surface of the joint between the diaphragm walls is increased, so that the connectivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-seepage walls, in particular to an anti-seepage wall for a water conservancy project. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. They are also called water projects. Water is a valuable resource indispensable to human production and life, but its natural state does not fully meet human needs. Only by building water conservancy projects can we control water flow, prevent floods and waterlogging, and regulate and distribute water to meet the needs of people's life and production for water resources. Most of the building structures in the field of water conservancy projects require the use of anti-seepage walls as an auxiliary.

[0003] A water conservancy project anti-seepage wall described in the publication number CN218813480U includes a first wall, the first wall includes a waterproof layer, an anti-corrosion layer and an anti-deformation layer, the waterproof layer is made of bentonite waterproof blanket material, the anti-corrosion layer is laid on the back of the waterproof layer, and the anti-corrosion layer is made of epoxy coal tar. The utility model has a waterproof layer made of bentonite waterproof blanket material. Since the bentonite waterproof blanket forms a uniform and high-density colloid in the pad when it meets water, it effectively prevents water leakage, thereby achieving a waterproof effect. The anti-corrosion layer is made of epoxy coal tar material, thereby preventing the anti-seepage wall from being eroded by chemicals in the water for a long time when placed in the water, so as to achieve an anti-corrosion effect. The anti-deformation layer is made of sand and gravel aggregate, thereby improving the deformation resistance of the wall, solving the problem that the anti-seepage wall is subjected to the impact of water for a long time, the wall surface is easily deformed, and the service life of the anti-seepage wall is seriously affected.

[0004] Although the above-mentioned anti-seepage wall solves certain problems, it still has the following disadvantages:

[0005] (1) The anti-seepage wall is a multi-layer wall, which is difficult to construct. In addition, the steel pipe is only designed in the longitudinal direction, and it is easy to bend in the middle. The anti-seepage wall is easily damaged by stress concentration.

[0006] (2) When pouring the anti-seepage wall, it is usually poured continuously at intervals. The cast anti-seepage walls on both sides need to be connected to the anti-seepage wall in the middle. After the plane connection, the connection area is mainly limited by the anti-seepage wall, and leakage is prone to occur at the connection. Utility Model Content

[0007] The utility model aims to provide an anti-seepage wall for a water conservancy project.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A water conservancy project anti-seepage wall, comprising:

[0010] Guide walls, wherein an anti-seepage wall body is arranged at the lower side between the guide walls;

[0011] A steel bar skeleton is arranged inside the main body of the anti-seepage wall. The steel bar skeleton includes reinforcing longitudinal bars, main longitudinal bars, frame bars, stirrups, supporting transverse bars and cross supporting bars. The reinforcing longitudinal bars are arranged in the middle position inside the main body of the anti-seepage wall. The main longitudinal bars are respectively arranged on both sides inside the main body of the anti-seepage wall. Several frame bars are evenly distributed and arranged on the same two sides in front and behind of the reinforcing longitudinal bars. Several stirrups are evenly distributed and arranged outside the frame bars. Several supporting transverse bars are evenly distributed and fixedly connected to the reinforcing longitudinal bars. Several cross supporting bars are evenly distributed and fixedly connected to the main longitudinal bars.

[0012] Furthermore, the reinforcing longitudinal bars are located on both sides of the main longitudinal bars, and the frame bars are welded together through stirrups.

[0013] Furthermore, the front and rear ends of the supporting transverse reinforcement are respectively fixedly connected to the vertical reinforcement.

[0014] Furthermore, the front and rear ends of the cross support ribs are fixedly connected to the front and rear inner sides of the stirrups respectively.

[0015] Furthermore, connecting grooves are provided on both sides of the outer part of the anti-seepage wall body, and waterproof asphalt coatings are provided on both sides of the connecting grooves on the outer part of the anti-seepage wall body.

[0016] The utility model provides an anti-seepage wall for a water conservancy project, which has the following beneficial effects:

[0017] (1) By uniformly supporting the steel skeleton at multiple locations along the normal direction of the cut-off wall, the strength of the cut-off wall is increased and the possibility of damage to the cut-off wall caused by stress concentration is reduced. Since the steel skeleton is prefabricated, the construction is simpler than the multi-layer design.

[0018] (2) By designing the two sides of the outer surface of the anti-seepage wall to be uneven, the contact surface at the connection of the anti-seepage wall is increased to ensure the connection stability between the anti-seepage walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 The utility model is a stereoscopic diagram of an anti-seepage wall of a water conservancy project.

[0021] Figure 2 The utility model is a partial structural three-dimensional Figure 1 .

[0022] Figure 3 The utility model is a partial structural three-dimensional Figure 2 .

[0023] Figure 4 The utility model is a partial structural three-dimensional Figure 3 .

[0024] Markings in the figure: 1. Guide wall; 2. Steel skeleton; 201. Reinforcing longitudinal reinforcement; 202. Main longitudinal reinforcement; 203. Frame reinforcement; 204. Stirrups; 205. Supporting transverse reinforcement; 206. Cross supporting reinforcement; 3. Anti-seepage wall body; 4. Connecting groove; 5. Waterproof asphalt coating. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] like Figures 1 to 4 As shown, this embodiment proposes a water conservancy project anti-seepage wall, including a guide wall 1, a steel skeleton 2, an anti-seepage wall body 3, a connecting groove 4, and a waterproof asphalt coating 5 coated on both sides of the outside of the anti-seepage wall body 3 and inside the connecting groove 4.

[0029] Among them, after the guide wall 1 confirms the wall position line of the anti-seepage wall, the guide wall 1 excavates the guide ditch, and the reinforced concrete cast-in-place wall passes through the front and back of the guide ditch. The guide wall 1 is used to block the soil at the edge of the groove during the construction of the anti-seepage wall to prevent the soil at the edge from collapsing into the groove, support the construction of the groove and hole, and the anti-seepage wall, and provide a reference for the construction of the anti-seepage wall. The trench is excavated along the guide wall 1. The length of each trench is 4 to 6 meters, and the trench is excavated at intervals. When excavating the trench, it is necessary to inject bentonite slurry when the groundwater level is reached to avoid soil collapse around the trench. The liquid level of the slurry should be kept 20 meters below the top surface of the guide wall 1 and 1 meter higher than the groundwater level. After the trench is excavated, the silt and residue at the bottom of the trench are excavated.

[0030] After the slurry replacement work is completed, the joint pipes of the circular lock pipe need to be hung vertically on both sides of the excavated trench, such as Figure 3 The conduits on both sides of the outer side of the steel frame 2 are used to hang the steel frame 2 into the excavated trench, and the cement pouring conduits for pouring concrete are hung on both sides of the inner side of the steel frame, such as Figure 3 On both sides of the interior of the steel skeleton 2 shown, two conduits for pouring concrete need to be arranged symmetrically. When pouring concrete into the excavated slot, it is necessary to pour concrete while extracting the mud inside the groove, and lift the conduit for pouring concrete upward. The height difference of concrete inside two adjacent conduits for pouring concrete cannot be greater than 0.5 meters. The bottom end of the conduit is buried below the concrete surface and maintained at 1.5 to 3 meters. After the pouring is completed, the joint pipes on both sides of the poured concrete will be pulled out in time after the concrete has finally set.

[0031] In order to increase the strength of the anti-seepage wall and the stress deformation in the normal direction of the wall surface, two main longitudinal bars 202 separated on both sides are used in the steel skeleton 2, and a number of evenly distributed X-shaped cross support bars 206 are welded thereon along the axial direction. A reinforcing longitudinal bar 201 is arranged in the middle of the two main longitudinal bars 202, and a number of evenly distributed supporting transverse bars 205 are arranged on the reinforcing longitudinal bars 201 along the axial direction. The outermost part is surrounded by a number of evenly distributed frame bars 203, and the frame bars 203 are connected by stirrups 204 welded on the outside. The stirrups 204 are evenly distributed, and the two ends of the supporting transverse bars 205 are respectively welded to the two front and rear frame bars 203 to support and reinforce the middle of the steel skeleton 2 along the normal direction of the wall surface of the anti-seepage wall body 3.

[0032] The front and rear ends of the cross support bars 206 are respectively welded to the front and rear of the inside of the stirrups 204 to support and reinforce the front and rear sides of the inside of the steel skeleton 2. The cross support bars 206 and the supporting transverse bars 205 are arranged at intervals along the distribution direction of the stirrups 204. For example, if the front and rear of the inside of a stirrup is reinforced with the supporting transverse bars 205, the next stirrup is reinforced with the cross support bars 206. It is not necessary to reinforce each layer of stirrups. The force exerted on the stirrups can be transmitted through the frame bars 203.

[0033] Embodiment 2:

[0034] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0035] After the joint pipe is pulled out of the groove, there will be grooves left by the joint pipe on both sides of the anti-seepage wall body 3. After the grooves are dug at intervals for pouring the anti-seepage wall, when the two anti-seepage walls are continuously poured, the opened connecting groove 4 will be connected by concrete pouring. In order to increase the waterproofness of the joint, waterproof asphalt coating is applied on both sides of the outside of the anti-seepage wall body 3 and the inside of the connecting groove 4. After the guide pipe is pulled out and the final setting, the two sides of the anti-seepage wall are concave, and the two sides of the middle anti-seepage wall poured in conjunction are convex. There can be a larger contact surface between the anti-seepage walls and better connectivity. Compared with the layered design of materials when pouring concrete, this kind of anti-seepage wall is easier to construct. The specific parameters of steel bars and concrete need to refer to the relevant standards of "Concrete Design Code for Water Conservancy and Hydropower Engineering" (SL 677-2014) according to the specific requirements of anti-seepage wall construction.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water conservancy project anti-seepage wall, characterized in that: include: A guide wall (1), wherein an anti-seepage wall body (3) is arranged on the lower side between the guide walls (1); A steel frame (2), the steel frame (2) being arranged inside the main body (3) of the anti-seepage wall, the steel frame (2) comprising reinforcing longitudinal bars (201), main longitudinal bars (202), frame bars (203), stirrups (204), supporting transverse bars (205) and cross supporting bars (206), the reinforcing longitudinal bars (201) being arranged at the middle position inside the main body (3) of the anti-seepage wall, the main longitudinal bars (202) being arranged at both sides inside the main body (3) of the anti-seepage wall, a number of frame bars (203) being evenly distributed and arranged on the same two sides in front and behind of the reinforcing longitudinal bars (201), a number of stirrups (204) being evenly distributed and arranged outside the frame bars (203), a number of supporting transverse bars (205) being evenly distributed and fixedly connected to the reinforcing longitudinal bars (201), and a number of cross supporting bars (206) being evenly distributed and fixedly connected to the main longitudinal bars (202).

2. A water conservancy project anti-seepage wall according to claim 1, characterized in that: The reinforcing longitudinal bars (201) are located on both sides of the main longitudinal bars (202), and the frame bars (203) are welded together via stirrups (204).

3. The water conservancy project anti-seepage wall according to claim 1, characterized in that: The front and rear ends of the supporting transverse ribs (205) are respectively fixedly connected to the vertical ribs (203).

4. The water conservancy project anti-seepage wall according to claim 1, characterized in that: The front and rear ends of the cross support ribs (206) are respectively fixedly connected to the front and rear inner sides of the stirrups (204).

5. The water conservancy project anti-seepage wall according to claim 1, characterized in that: Both sides of the outer part of the anti-seepage wall body (3) are provided with connecting grooves (4), and both sides of the outer part of the anti-seepage wall body (3) are provided with waterproof asphalt coatings (5) on the inner sides of the connecting grooves (4) that are close to each other.

Images