阅读说明：本技术 一种混凝土地基施工的止水系统及施工方法 (Water stopping system for concrete foundation construction and construction method ) 是由 马定球 黄伟勇 卢杰 李以浪 黄毅义 曾俊辉 李露露 白金肖 于 2019-11-29 设计创作，主要内容包括：本发明涉及一种应用于施工现场的止水结构及施工方法,尤指一种混凝土地基施工的止水系统施工方法及止水系统,主要包括步骤：1)确定伸缩缝位置；2)止水带定位；3)安装固定垫块；4)预制固定模板；5)固定模板拼接定位；6)控制垂直度；本发明在地基施工区中通过止水固定结构支撑与固定止水装置,止水固定结构由固定模板与固定垫块组成,二者切换配合式应用固定,整体结构制备及组装简易,容易固定且方便安装拆除,止水装置不仅可以有效地防止地基施工构造的漏水,而且可以防止缝间渗水。(The invention relates to a water stop structure and a construction method applied to a construction site, in particular to a construction method and a water stop system of a water stop system for concrete foundation construction, which mainly comprise the following steps: 1) determining the position of the expansion joint; 2) positioning a water stop belt; 3) installing a fixed cushion block; 4) prefabricating a fixed template; 5) splicing and positioning the fixed templates; 6) controlling the verticality; the water stopping device is supported and fixed by the water stopping fixing structure in the foundation construction area, the water stopping fixing structure consists of the fixing template and the fixing cushion block, the fixing template and the fixing cushion block are applied and fixed in a switching fit mode, the whole structure is easy to manufacture and assemble, easy to fix and convenient to install and remove, and the water stopping device can effectively prevent water leakage of the foundation construction structure and can prevent water seepage among seams.)

1. A construction method of a water stop system for concrete foundation construction is characterized by mainly comprising the following steps:

1) determining the position of the expansion joint: before binding the steel bars and pouring concrete, popping up an expansion joint positioning line between the cushion layer and the reinforced concrete to determine the position of the expansion joint;

2) water stop positioning: when the installation of the steel bar is finished, the water stop belt is installed at the preset expansion joint position and is installed in an embedded mode from one long edge of the water stop beltBottom layer reinforcing steel bar and surface layer reinforcing steel barA bent notch position;

3) installing and fixing the cushion block: installing shaped steel bars at two side edges below the vertical direction of the water stop to support the water stop through the shaped steel bars, binding a plurality of fixed cushion blocks at intervals at the tops of the shaped steel bars, supporting the water stop in parallel through the fixed cushion blocks, keeping the interface part of the water stop flat, and removing the fixed cushion blocks when the fixed template is installed;

4) prefabricating a fixed template: the fixed template comprises a vertical template, a vertical module and a reinforcing plate, and the dimensions are planned so as to prefabricate the whole vertical template, the vertical module and the reinforcing plate and assemble the vertical template, the vertical module and the reinforcing plate with the water stop;

5) splicing and positioning the fixed templates: moving the integrally formed or spliced vertical template, the vertical module and the reinforcing plate to a construction site and fixing and positioning by taking the water stop fixing position as a base point;

6) controlling the verticality: controlling the verticality of the vertical water stop by using a method of hanging a line drop from the bottom control line position; and finishing the installation of the water stopping device after adjusting the verticality.

2. The water stop system construction method for concrete foundation construction according to claim 1, wherein the vertical formwork of the fixing formwork of step 4) is an integral continuous plate-block structure, is formed into a long-sheet type plate structure by integral plate forming or multi-plate splicing, has a size of 0.6m 1.2m to 3m, and is provided with a through groove at a position corresponding to the installation position of the water stop; the vertical module is of a vertical plate type plate structure, is made of plates with the size of 0.2m x 1.2 m-0.8 m x 3m, and is provided with a deep groove at the position corresponding to the installation position of the water stop; the reinforced plate is a reinforced plate structure with the size of 0.1m 0.3 m-0.2 m 0.4m, and the reinforced plate are connected by simultaneously connecting the vertical template and the vertical module.

3. The water stopping system construction method for concrete foundation construction as claimed in claim 1, wherein said step 5) further comprises:

5-1) arranging the whole vertical template in an expansion joint at the periphery of the foundation construction area along the length direction of the whole vertical template, and fixedly installing the whole vertical template in a bottom embedded mode;

5-2) adjusting the height of the vertical template of the fixed template to be higher than the installation position of the surface layer reinforcement cage, wherein the top of the vertical module is flush with the vertical template;

5-3) the vertical module and the whole piece type vertical template are mutually vertically assembled and connected, and the reinforcing plate is arranged on the upper side and the lower side of the vertical module in an attaching manner;

5-4) according to the position of the water stop, at the height of the water stop, a transverse notch is formed from one surface of the integral vertical template to the other surface in a penetrating mode, the depth of the notch extends to the vertical module, namely, the through groove and the deep groove are formed, and the notch is arranged at the middle waist line of the integral vertical template to install the water stop in a semi-surrounding mode, so that the fixed template assembly of the water stop fixed structure is completed.

4. A water stopping system for concrete foundation construction is characterized by mainly comprising a water stopping device, a water stopping fixed structure and a foundation construction area; the foundation construction area sequentially comprises a cushion layer, a reinforced concrete bottom layer and a reinforced concrete surface layer from bottom to top; wherein, the bottom layer of the reinforced concrete is provided with an expansion joint in advance to set the installation and the positioning of the water stop device; the water stopping device is a rubber water stopping belt; the water stop fixing structure comprises a fixing template and a fixing cushion block, wherein the fixing template and the fixing cushion block are respectively installed on the side edge of the water stop in a switching matching mode to fix the water stop.

5. The water stopping system for concrete foundation construction according to claim 4, wherein the fixed formwork comprises an integral vertical formwork, a vertical module and a reinforcing plate, the integral vertical formwork is vertically and adjacently installed beside a foundation construction area and is higher than a surface layer reinforcement cage, the vertical module is provided with a plurality of blocks, the blocks are arranged in parallel at intervals and vertically installed on the integral vertical formwork, the top of the vertical formwork is flush with the top of the integral vertical formwork, the integral vertical formwork is provided with a transverse notch from a middle waist line of the surface towards the direction of the vertical module, the notch opening on the integral vertical formwork is in an upper arc shape and a lower arc shape, a main body of the notch on the vertical module is in a rectangular shape, and a central line position and a side edge of the fixed water stopping belt in the length direction are clamped through a notch space; reinforcing panels are mounted on either side of the vertical modules.

6. The water stopping system for concrete foundation construction as claimed in claim 4, wherein the fixing blocks are formed as concrete supporting blocks in a cubic shape, installed at both sides of the water stopping strip and combined with shaped reinforcing bars to support the water stopping strip from the lower surface.

7. The water stopping system for concrete foundation construction as claimed in claim 4, wherein the water stopping belt is a rubber water stopping belt with a long strip-shaped structure, the length of the rubber water stopping belt is greater than or equal to the transverse length of the whole piece type vertical formwork, and an anti-skid boss is arranged on the surface of the rubber water stopping belt.

Technical Field

The invention relates to a water stopping structure and a construction method applied to a construction site, in particular to a construction method of a water stopping system and a water stopping system for concrete foundation construction.

Background

In the water conservancy and hydropower engineering, such as the underground facilities, tunnel culverts, hydrophobic aqueducts, check dams, river gates, liquid storage structures and other large engineering building designs, because concrete can not be poured continuously, or because of the deformation of the foundation, or because of the concrete member thermal expansion and contraction caused by temperature change, the construction joints, settlement joints and deformation joints need to be reserved, the water stop belts must be installed at the joints to prevent the leakage of the concrete water body, the selection of the water stop belts should be determined according to the importance level of the structures, the deformation amount of the deformation joints, the water pressure, the using working environment of the water stop belts, the economic factors and other conditions, long-term tests and practical practices find that if the water stop belts are arranged by the water stop belts made of steel plates, the water stop function of water stop can be better, and the problem of leakage caused by the construction process level limitation can be solved to a certain extent, but has the defects of high cost, complex construction process, non-ideal anti-seepage effect and the like due to the use of a large number of steel plates and supporting members, so that a high-elasticity polymer material with reversible deformation is often adopted as the water stop belt for overcoming the defects.

The rubber waterstop or the plastic waterstop is widely used for deformation joints of ultra-long underground structures, the problem of leakage of water stopping requirements at the deformation joint parts is solved, and meanwhile, the material waterstop can play a role in preventing leakage and can also better extend the deformation characteristic to ensure that the deformation joints can freely stretch and retract under the working conditions of temperature change or uneven settlement so as to ensure that the deformation joints are intact and not damaged, so that the material waterstop is widely used; however, during foundation construction, the waterstop is arranged along a foundation construction area, the steel bars are made into a bent shape in a common method, the bent heads are tightly propped against two sides of the waterstop, the straight sections are bound and fixed with the horizontal steel bars of the shear wall, and the waterstop is clamped by the half-side template to pour concrete.

Disclosure of Invention

In order to solve the above problems, the present invention aims to disclose a water stopping structure and a construction method applied to a construction site, and particularly to a construction method of a water stopping system and a water stopping system for concrete foundation construction.

In order to achieve the purpose, the invention adopts the technical scheme that: a construction method of a water stop system for concrete foundation construction is characterized by mainly comprising the following steps:

1) determining the position of the expansion joint: before binding the steel bars and pouring concrete, popping up an expansion joint positioning line between the cushion layer and the reinforced concrete to determine the position of the expansion joint;

2) water stop positioning: when the installation of the steel bar is finished, the water stop belt is installed at the preset expansion joint position and is installed in an embedded mode from one long edge of the water stop beltBottom layer reinforcing steel bar and surface layer reinforcing steel barA bent notch position;

3) installing and fixing the cushion block: installing shaped steel bars at two side edges below the vertical direction of the water stop to support the water stop through the shaped steel bars, binding a plurality of fixed cushion blocks at intervals at the tops of the shaped steel bars, supporting the water stop in parallel through the fixed cushion blocks, keeping the interface part of the water stop flat, and removing the fixed cushion blocks when the fixed template is installed;

4) prefabricating a fixed template: the fixed template comprises a vertical template, a vertical module and a reinforcing plate, and the dimensions are planned so as to prefabricate the whole vertical template, the vertical module and the reinforcing plate and assemble the vertical template, the vertical module and the reinforcing plate with the water stop;

5) splicing and positioning the fixed templates: moving the integrally formed or spliced vertical template, the vertical module and the reinforcing plate to a construction site and fixing and positioning by taking the water stop fixing position as a base point;

6) controlling the verticality: controlling the verticality of the vertical water stop by using a method of hanging a line drop from the bottom control line position; and finishing the installation of the water stopping device after adjusting the verticality.

Preferably, the vertical template of the template fixed in the step 4) is of an integral continuous plate-shaped structure, is of a long-sheet plate-shaped structure formed by integral plate forming or multi-plate splicing, has the size of 0.6m by 1.2m to 3m by 3m, and is provided with a through groove at the position corresponding to the water stop mounting position; the vertical module is of a vertical plate type plate structure, is made of plates with the size of 0.2m x 1.2 m-0.8 m x 3m, and is provided with a deep groove at the position corresponding to the installation position of the water stop; the reinforced plate is a reinforced plate structure with the size of 0.1m 0.3 m-0.2 m 0.4m, and the reinforced plate are connected by simultaneously connecting the vertical template and the vertical module.

Preferably, the step 5) further comprises:

5-1) arranging the whole vertical template in an expansion joint at the periphery of the foundation construction area along the length direction of the whole vertical template, and fixedly installing the whole vertical template in a bottom embedded mode;

5-2) adjusting the height of the vertical template of the fixed template to be higher than the installation position of the surface layer reinforcement cage, wherein the top of the vertical module is flush with the vertical template;

5-3) the vertical module and the whole piece type vertical template are mutually vertically assembled and connected, and the reinforcing plate is arranged on the upper side and the lower side of the vertical module in an attaching manner;

5-4) according to the position of the water stop, at the height of the water stop, a transverse notch is formed from one surface of the integral vertical template to the other surface in a penetrating mode, the depth of the notch extends to the vertical module, namely, the through groove and the deep groove are formed, and the notch is arranged at the middle waist line of the integral vertical template to install the water stop in a semi-surrounding mode, so that the fixed template assembly of the water stop fixed structure is completed.

A water stopping system for concrete foundation construction is characterized by mainly comprising a water stopping device, a water stopping fixed structure and a foundation construction area; the foundation construction area sequentially comprises a cushion layer, a reinforced concrete bottom layer and a reinforced concrete surface layer from bottom to top; wherein, the bottom layer of the reinforced concrete is provided with an expansion joint in advance to set the installation and the positioning of the water stop device; the water stopping device is a rubber water stopping belt; the water stop fixing structure comprises a fixing template and a fixing cushion block, wherein the fixing template and the fixing cushion block are respectively installed on the side edge of the water stop in a switching matching mode to fix the water stop.

Preferably, the fixed template comprises an integral vertical template, a vertical module and a reinforcing plate block, the integral vertical template is vertically and adjacently installed beside a foundation construction area and is higher than a surface layer reinforcement cage, the vertical module is provided with a plurality of blocks, the blocks are arranged in parallel at intervals and vertically installed on the integral vertical template, the top of the integral vertical template is flush with the top of the integral vertical template, the integral vertical template is provided with a transverse notch from a middle waist line of the surface towards the direction of the vertical module, the notch opening arranged on the integral vertical template is in an upper arc shape and a lower arc shape, a notch main body arranged on the vertical module is in a rectangular shape, and a central line position and a side edge of the fixed water stop belt in the length direction are clamped through a notch space; reinforcing panels are mounted on either side of the vertical modules.

Preferably, the fixing cushion block is formed into a cubic concrete supporting cushion block, and is installed on two side edges of the water stop belt and combined with the shaped steel bars to support the water stop belt from the lower surface.

Preferably, the waterstop is a rubber waterstop with a long strip-shaped structure, the length of the waterstop is greater than or equal to the transverse length of the whole vertical template, and an anti-skid boss is arranged on the surface of the waterstop.

The invention has the beneficial effects that: the invention adopts the water stop device and the water stop fixing structure to be matched and applied to the foundation construction area, thereby the water stop fixing structure supports and fixes the water stop device in the foundation construction area, the water stop fixing structure adopted by the invention consists of the fixed template and the fixed cushion block, the fixed template and the fixed cushion block are switched and matched for application and fixation, and can work independently or in a matched way, the fixed cushion block is used for supporting the water stop device from two sides by combining the shaped reinforcing steel bar in the early stage of the installation of the fixed template, the fixed template is preferably a light wood template, the structure is simple and easy to prepare and assemble, easy to fix and convenient to install and disassemble, the water stop belt is stably fixed in the later stage by the fixed template, the water stop device can prevent the underground water or the outside water from leaking into the building structure of the foundation construction, can also prevent the water in the building from leaking to the outside, can improve the permeation path of the water, but also can prevent water seepage between seams.

When the water-stopping device is applied to a foundation construction area for water stopping work, the water-stopping belt can be stably fixed in the whole process, the position of the water-stopping belt in concrete foundation construction is ensured, and the water-stopping belt can be stably installed and the quality of the water-stopping belt can be protected from being damaged due to the fact that the installation structure of the fixed template is a semi-surrounding type fixed structure, and concrete pouring and vibrating are facilitated; in the earlier stage of integral implementation, the preparation process can save materials, the material utilization rate is high, the economic effect is good, the integral material is light, and the labor productivity is improved.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a structural view of the water stopping device of the present invention in cooperation with a fixed form.

Fig. 3 is an exploded view of the water stop device of the present invention in cooperation with a fixed block.

Reference is made to the accompanying drawings in which: 1-water stopping fixing structure, 2-water stopping device, 3-foundation construction area, 11-integral vertical template, 12-vertical module, 13-reinforcing plate, 14-notch and 15-fixing cushion block.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings:

a construction method of a water stop system for concrete foundation construction mainly comprises the following steps:

1) determining the position of the expansion joint: before binding the steel bars and pouring concrete, popping up an expansion joint positioning line between the cushion layer and the reinforced concrete to determine the position of the expansion joint;

2) water stop positioning: when the installation of the steel bar is finished, the water stop belt is installed at the preset expansion joint position and is installed in an embedded mode from one long edge of the water stop beltBottom layer reinforcing steel bar and surface layer reinforcing steel barA bent notch position;

3) installing and fixing the cushion block 15: installing shaped steel bars at two side edges below the vertical direction of the water stop to support the water stop through the shaped steel bars, binding a plurality of fixed cushion blocks 15 at intervals at the tops of the shaped steel bars, supporting the water stop in parallel through the fixed cushion blocks 15, keeping the interface part of the water stop flat, and removing the fixed cushion blocks 15 when a fixed template is installed;

4) prefabricating a fixed template: the fixed template comprises an integral vertical template 11, a vertical module 12 and a reinforcing plate 13, and the dimensions are planned so as to prefabricate the integral vertical template, the vertical module 12 and the reinforcing plate 13 and assemble the integral vertical template, the vertical module 12 and the reinforcing plate with the water stop;

the vertical template of the fixed template in the step 4) is of an integral continuous plate-shaped structure, is of a long-sheet plate-shaped structure formed by integral plate forming or multi-plate splicing, has the size of 0.6m by 1.2m to 3m by 3m, and is provided with a through groove at the position corresponding to the installation position of the water stop belt; the vertical module 12 is of a vertical plate type plate structure, the vertical module 12 is made of plates with the size of 0.2m x 1.2 m-0.8 m x 3m, and a deep groove is formed in the position corresponding to the installation position of the water stop; the reinforced plate 13 is a reinforced plate structure, the size of the reinforced plate is 0.1m x 0.3 m-0.2 m x 0.4m, and the reinforced plate are connected by simultaneously connecting the vertical template and the vertical module 12;

5) splicing and positioning the fixed templates: moving the integrally formed or spliced vertical template, the vertical module 12 and the reinforcing plate 13 to a construction site and fixing and positioning by taking the water stop fixing position as a base point;

the step 5) further comprises the following steps:

5-1) arranging the whole vertical template 11 in an expansion joint at the outer periphery of the foundation construction area 3 from the length direction of the whole vertical template, and fixedly installing the whole vertical template in a bottom embedded mode;

5-2) adjusting the height of the vertical template of the fixed template to be higher than the installation position of the surface layer reinforcement cage, wherein the top of the vertical module 12 is flush with the vertical template;

5-3) the vertical module 12 and the integral vertical template 11 are mutually vertically assembled and connected, and the reinforcing plate 13 is arranged on the upper side and the lower side of the vertical module 12 in an attaching manner;

5-4) according to the position of the water stop, at the height of the water stop, a transverse notch 14 is formed from one surface of the integral vertical template 11 to the other surface in a penetrating manner, the depth of the notch 14 extends to the vertical module 12, namely a through groove and a deep groove, the notch 14 is arranged at the middle waist line of the integral vertical template 11 to install the water stop in a semi-surrounding manner, and therefore the fixed template assembly of the water stop fixed structure 1 is completed;

6) controlling the verticality: controlling the verticality of the vertical water stop by using a method of hanging a line drop from the bottom control line position; and finishing the installation of the water stopping device 2 after adjusting the verticality.

A water stopping system for concrete foundation construction mainly comprises a water stopping device 2, a water stopping fixed structure 1 and a foundation construction area 3; the foundation construction area 3 sequentially comprises a cushion layer, a reinforced concrete bottom layer and a reinforced concrete surface layer from bottom to top; wherein, the bottom layer of the reinforced concrete is provided with an expansion joint in advance to set the installation and the positioning of the water stop device 2; the water stopping device 2 is a rubber water stopping belt; the water stopping fixing structure 1 comprises a fixing template and a fixing cushion block 15, wherein the fixing template and the fixing cushion block 15 are respectively installed on the side edge of the water stopping belt in a switching fit mode so as to fix the water stopping belt; the fixed template comprises an integral vertical template 11, a vertical module 12 and a reinforcing plate 13, wherein the integral vertical template 11 is vertically and adjacently arranged at the side of a foundation construction area 3 and is higher than a surface steel reinforcement cage, the vertical module 12 is provided with a plurality of blocks, the blocks are arranged in parallel at intervals and vertically arranged on the integral vertical template 11, the top of the blocks is flush with the top of the integral vertical template 11, the integral vertical template 11 is provided with a transverse notch 14 from the middle waist line of the surface towards the direction of the vertical module 12, the notch 14 arranged on the integral vertical template 11 is provided with an upper arc-shaped opening and a lower arc-shaped opening, the main body of the notch 14 arranged on the vertical module 12 is rectangular, and a central line position and one side edge of the fixed water stop in the length direction are clamped through the; the reinforcing panels 13 are mounted on either side of the vertical modules 12; the fixed cushion blocks 15 are formed into cubic concrete supporting cushion blocks, are arranged on two side edges of the water stop belt and are combined with shaped reinforcing steel bars to support the water stop belt from the lower surface; the waterstop is a rubber waterstop with a strip-shaped strip structure, the length of the waterstop is greater than or equal to the transverse length of the integral vertical template 11, and an anti-skidding boss is arranged on the surface of the waterstop.

During construction, the verticality and the flatness of the water stop belt need to be controlled, construction is continued after the water stop belt is installed, when concrete is poured, if the water stop belt is not on a horizontal line, the water stop belt is lifted slightly through an iron hook during vibration so as to ensure the smoothness of the water stop belt, quality defect problems (such as honeycombs and pitted surfaces) can be avoided after pouring, the dismantled wood formwork can be recycled after slight repair, the utilization rate of materials can be improved due to the material performance and the structural stability, the manufacturing cost is reduced, and because the wood formwork fixing material is preferably selected, the wood formwork fixing material is light in weight, convenient to transport and install and dismantle manually, the labor load of workers is greatly reduced, the labor productivity is improved, the economic effect is generated in the whole process, and the effect is obvious.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, and those skilled in the art may make modifications and variations within the spirit of the present invention, and all modifications, equivalents and modifications of the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.