Anti-seepage construction method for water pool in water-rich area

Abstract

The invention relates to a water pool construction method, in particular to an anti-seepage construction method for a water pool in a water-rich area. The method comprises the following steps: measuring and setting out to determine a pool structure contour line; binding a main reinforcement cage of the bottom plate and the side wall of the pool; the water stop steel plate is installed on the main reinforcing steel bar through a fixing device; a pool bottom formwork is erected, and anti-seepage concrete is poured; the side wall steel bars are bound after the bottom formwork is dismantled; carrying out scabbling treatment on the concrete by adopting a scabbling mold after initial setting of each layer of concrete; the inner wall of the pool body is coated with polymer cement waterproof paint to form a continuous waterproof layer; and carrying out a water storage test to detect the anti-seepage effect. Non-welding connection of the water stop steel plate and the main reinforcing steel bar is achieved through the mechanical fixing device, damage to the mechanical property of the reinforcing steel bar and damage to a zinc coating caused by a traditional welding process are avoided, and the connection reliability problem is solved.

Description

Technical Field

[0001] The present invention relates to a construction method for a water pool, specifically an anti-seepage construction method for a water pool in a water-rich area. Background Art

[0002] In the field of construction engineering, the construction of water pools in water-rich areas has always faced special challenges. In such areas, the groundwater level is high, the seepage pressure is large, and the geological conditions are complex, making it difficult for traditional anti-seepage technologies to meet the engineering requirements. Water leakage in the pool not only affects the use function, but also may lead to potential structural safety hazards and environmental pollution risks. Especially under the long-term water pressure, weak links such as construction joints and concrete cracks are prone to become leakage channels, increasing the difficulty and cost of later maintenance.

[0003] Currently, there are mainly three technical difficulties in the anti-seepage construction of water pools in water-rich areas: one is the connection reliability problem between the water stop steel plate and the main structure. The traditional water stop steel plate is welded and fixed to the main reinforcement. The welding heat affected zone may cause the mechanical properties of the main reinforcement to decline. It is difficult to guarantee the on-site welding quality, and defects such as missed welding and slag inclusion are likely to occur. The welding operation may damage the galvanized layer of the reinforcement, accelerating corrosion; the second is the joint treatment process when pouring concrete in layers. The existing roughening method is difficult to guarantee the interfacial bonding strength; these problems may lead to potential leakage hazards in the pool structure during long-term use, affecting the engineering quality and durability. Summary of the Invention

[0004] The present invention aims to solve the above problems, thereby providing an anti-seepage construction method for a water pool in a water-rich area that guarantees the engineering quality.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: An anti-seepage construction method for a water pool in a water-rich area, comprising the following steps: S1: Measuring and setting out to determine the contour line of the pool structure, and laying and tamping a graded sand and gravel cushion at the bottom of the foundation pit.

[0006] S2: Binding the main reinforcement skeletons of the pool bottom slab and side walls.

[0007] S3: Transporting the water stop steel plate to the construction joint and installing it on the main reinforcement through a fixing device.

[0008] S4: Erecting the formwork at the bottom of the pool and pouring anti-seepage concrete.

[0009] S5: Waiting for the concrete to solidify, and binding the side wall reinforcement after removing the bottom formwork.

[0010] S6: Erecting the formwork of the pool side wall and pouring the concrete in layers. After the initial setting of each layer of concrete, roughening treatment is carried out on the concrete using a roughening mold.

[0011] S7: After the concrete curing period is over, apply polymer cement waterproof coating on the inner wall of the tank to form a continuous waterproof layer.

[0012] S8: Carry out water storage test to check the anti-seepage effect, and use high-pressure grouting to reinforce local leakage points.

[0013] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: The non-welded connection between the water-stop steel plate and the main steel bar is achieved through a mechanical fixing device, which avoids the damage to the mechanical properties of the steel bar and the damage to the galvanized layer by the traditional welding process, and solves the problem of connection reliability; the concrete construction method of layered pouring combined with a special roughening process significantly improves the bonding strength of the construction joint interface and overcomes the defect of the unstable effect of the traditional roughening method; through the composite anti-seepage system of graded sand and gravel cushion layer, impermeable concrete and polymer waterproof coating, a multi-layer waterproof barrier is formed to effectively cope with the special working conditions of high permeability pressure in water-rich areas; combined with the acceptance method of water storage test and high-pressure grouting reinforcement, local leakage points can be systematically detected and repaired to ensure the durability and reliability of the anti-seepage effect. While ensuring the construction quality, this method takes into account the process feasibility and engineering economy, and is particularly suitable for water-rich areas with large groundwater level fluctuations and complex geological conditions.

[0014] Preferably, a further technical solution of the present invention is: Furthermore, the fixing device in S3 includes a horizontal fixing tube, in which the inner cavities on both sides of the fixing tube are respectively threadedly connected with first screw rods, the outer ends of the adjusting screw rods are vertically welded with binding rods, the bottom ends of the binding rods are respectively vertically welded with relative threaded sleeves, and the second screw rods are threaded in the threaded sleeves, and the ends of the two second screw rods are relatively provided with fixing plates that abut against the waterstop steel plates, and U-shaped adjustment clamps are longitudinally spaced on the upper edge of the binding rods, and the open ends of the adjustment clamps are provided with fixing bolts for limiting the adjacent longitudinal main steel bars. The waterstop steel plates are accurately positioned and firmly fixed through a multi-stage screw adjustment system, thereby avoiding the influence of welding deformation on the structure, and the modular assembly method facilitates rapid installation and adjustment on site, reducing the difficulty of construction.

[0015] Furthermore, the roughening mold includes a mold block, and a plurality of blind holes are arranged in an array at the bottom of the mold block. The blind holes arranged in the array form a uniform roughening texture, thereby ensuring the processing consistency of the concrete joint surface.

[0016] Furthermore, the mold block is a rectangular parallelepiped and is made of rubber. The rubber mold block can buffer the impact force during the roughening process and reduce the damage to the initial setting concrete.

[0017] Furthermore, the blind hole is hemispherical, and the hemispherical blind hole design is conducive to forming an ideal rough interface and enhancing the mechanical bite effect of new and old concrete.

[0018] Furthermore, a handrail is provided at the top of the mold block for convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the fixing device according to an embodiment of the present invention; Figure 2 It is a top view structural schematic diagram of the roughening mold according to an embodiment of the present invention; The markings in the figure are: fixing pipe 1, first screw 2, lashing rod 3, threaded sleeve 4, second screw 5, fixing piece 6, adjusting clamp 7, mold block 8, blind hole 9, handrail 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described below in conjunction with embodiments, and the purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0021] A construction method for preventing leakage of a water pool in a water-rich area includes the following steps: S1: Measuring and setting out to determine the contour line of the pool structure, and laying and tamping a graded sand cushion at the bottom of the foundation pit.

[0022] S2: Binding the main steel bar skeletons of the pool bottom slab and side walls.

[0023] S3: Transporting the water stop steel plate to the construction joint and installing it on the main steel bars through the fixing device.

[0024] S4: Supporting the formwork at the bottom of the pool and pouring impermeable concrete.

[0025] S5: Waiting for the concrete to solidify, binding the side wall steel bars after removing the bottom formwork.

[0026] S6: Supporting the formwork of the pool side wall and pouring concrete in layers. After the initial setting of each layer of concrete, the concrete is roughened using a roughening mold.

[0027] S7: After the concrete curing period expires, applying polymer cement waterproof coating on the inner wall of the pool to form a continuous waterproof layer.

[0028] S8: Conducting a water storage test to detect the anti-seepage effect, and using high-pressure grouting to reinforce the local leakage points.

[0029] Furthermore, the fixing device in S3 includes a horizontal fixing tube 1, in which the inner cavities on both sides of the fixing tube 1 are respectively threadedly connected with a first screw rod 2, the outer ends of the adjusting screw rods are vertically welded with binding rods 3, the bottom ends of the binding rods 3 are respectively vertically welded with relative threaded sleeves 4, and the second screw rods 5 are threaded in the threaded sleeves 4, and the ends of the two second screw rods 5 are relatively provided with fixing plates 6 that are against the waterstop steel plate, and U-shaped adjustment clamps 7 are longitudinally spaced on the upper edge of the binding rod 3, and the open ends of the adjustment clamps 7 are provided with fixing bolts for limiting the adjacent longitudinal main steel bars. The waterstop steel plate is accurately positioned and firmly fixed through a multi-stage screw adjustment system, avoiding the influence of welding deformation on the structure, and the modular assembly method facilitates rapid installation and adjustment on site, reducing the construction difficulty, and by adjusting the length of the first screw rod 2 and the second screw rod 5, it is ensured that the fixing plate 6 can tighten the waterstop steel plate and the binding rod 3 can be fixed close to the main steel bar.

[0030] Furthermore, the roughening mold includes a mold block 8, and a plurality of blind holes 9 are arranged in an array at the bottom of the mold block 8. The blind holes 9 arranged in an array form a uniform roughening texture, thereby ensuring the processing consistency of the concrete joint surface.

[0031] Furthermore, the mold block 8 is a rectangular parallelepiped and is made of rubber. The rubber mold block can buffer the impact force during the roughening process and reduce the damage to the initial setting concrete.

[0032] Furthermore, the blind hole 9 is hemispherical, and the design of the hemispherical blind hole 9 is conducive to forming an ideal rough interface and enhancing the mechanical bite effect of new and old concrete.

[0033] Furthermore, a handrail 10 is provided on the top of the mold block 8 to facilitate operation.

[0034] The non-welded connection between the water-stop steel plate and the main steel bar is achieved through a mechanical fixing device, which avoids the damage to the mechanical properties of the steel bar and the damage to the galvanized layer by the traditional welding process, and solves the problem of connection reliability; the concrete construction method of layered pouring combined with a special roughening process significantly improves the bonding strength of the construction joint interface and overcomes the defect of the unstable effect of the traditional roughening method; through the composite anti-seepage system of graded sand and gravel cushion layer, impermeable concrete and polymer waterproof coating, a multi-layer waterproof barrier is formed to effectively cope with the special working conditions of high permeability pressure in water-rich areas; combined with the acceptance method of water storage test and high-pressure grouting reinforcement, local leakage points can be systematically detected and repaired to ensure the durability and reliability of the anti-seepage effect. While ensuring the construction quality, this method takes into account the process feasibility and engineering economy, and is particularly suitable for water-rich areas with large groundwater level fluctuations and complex geological conditions.

[0035] The above are only the preferred and feasible embodiments of the present invention, and thus do not limit the scope of the rights of the present invention. Any equivalent changes made by using the content of the specification and drawings of the present invention are included within the scope of the rights of the present invention.

Claims

1. A construction method for preventing water leakage of a pool in a water-rich area, characterized in that: It includes the following steps: S1: Measure and set out the contour line of the pool structure, and lay and tamp the graded sand cushion at the bottom of the foundation pit; S2: Bind the main steel bar skeletons of the pool bottom slab and side walls; S3: Transport the water stop steel plate to the construction joint and install it on the main steel bars through the fixing device; S4: Support the formwork at the bottom of the pool and pour the impermeable concrete; S5: Wait for the concrete to solidify, bind the side wall steel bars after removing the bottom formwork; S6: Support the formwork of the pool side wall and pour the concrete in layers. After the initial setting of each layer of concrete, use the chiseling mold to chisel the concrete; S7: After the concrete curing period expires, apply polymer cement waterproof coating on the inner wall of the pool to form a continuous waterproof layer; S8: Conduct a water storage test to detect the anti-seepage effect, and use high-pressure grouting to reinforce the local leakage points.

2. The anti-seepage construction method of the water-rich area pool according to claim 1, characterized in that: The fixing device in S3 includes a horizontal fixing pipe. The inner cavities on both sides of the fixing pipe are respectively threadedly connected with a first screw rod. The outer ends of the adjusting screw rods are vertically welded with binding rods. The bottom ends of the binding rods are respectively vertically welded with opposite threaded sleeves. A second screw rod is screwed in the threaded sleeve. The ends of the two second screw rods are oppositely provided with fixing pieces that abut against the water stop steel plate. U-shaped adjusting clamps are arranged at intervals along the longitudinal direction on the binding rods. The open ends of the adjusting clamps are provided with fixing bolts to limit the adjacent longitudinal main steel bars.

3. The anti-seepage construction method of the water-rich area pool according to claim 1, characterized in that: The chiseling mold includes a mold block, and a plurality of blind holes are arranged in an array at the bottom of the mold block.

4. The anti-seepage construction method of the water-rich area pool according to claim 3, characterized in that: The mold block is a cuboid and is made of rubber.

5. The anti-seepage construction method of the water-rich area pool according to claim 3, characterized in that: The blind holes are hemispherical.

6. The anti-seepage construction method for the water-rich area pool according to claim 3, characterized in that: A handrail is arranged at the top of the mold block.

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