CN110331740B - Waterproof construction method for underground engineering - Google Patents
Waterproof construction method for underground engineering Download PDFInfo
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- CN110331740B CN110331740B CN201910486652.3A CN201910486652A CN110331740B CN 110331740 B CN110331740 B CN 110331740B CN 201910486652 A CN201910486652 A CN 201910486652A CN 110331740 B CN110331740 B CN 110331740B
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- waterproof
- layer
- concrete
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- underground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
Abstract
The invention discloses a waterproof construction method for underground engineering, which comprises the following steps: pre-digging a foundation pit in a construction site, laying a flat cushion layer at the bottom of the foundation pit, binding reinforcing steel bars at the top of the cushion layer, pouring a concrete cushion layer through the reinforcing steel bars, fixedly inserting a fixing frame on the side wall of the concrete cushion layer, connecting the pouring reinforcing steel bars through the fixing frame, and fixedly welding a partition plate on one side of the inner wall of the fixing frame; the utility model discloses a waterproof construction method, including mount, waterproof rubber, mount, concrete surface, waterproof construction method, underground works waterproof construction method, the mount has waterproof rubber with pour the steel bar junction packing, waterproof rubber laminates with the mount each other, through pouring the steel bar concreting the waterproof layer has been solved in the waterproof construction method of present underground works comparatively loaded down with trivial details in the work progress, and does not have good waterproof facility when secret infiltration, has ponding easily in the underground during secret infiltration, and underground works is when using, and ponding is too much, influences the problem of the use of underground facility easily.
Description
Technical Field
The invention relates to the technical field of bottom engineering, in particular to a waterproof construction method for underground engineering.
Background
The underground engineering refers to underground civil engineering built deep below the ground to develop and utilize underground space resources. The underground civil air defense system comprises underground houses (commonly known as basements) and underground structures (such as underground shopping malls and the like), underground railways (such as urban subways), highway tunnels (such as mountain tunnels), underwater tunnels (such as submarine tunnels), street-crossing underground passages (such as urban underground sidewalks), underground civil air defense systems, underground comprehensive pipe galleries and the like. The existing underground engineering waterproof has internal waterproof and external waterproof, and the existing underground engineering waterproof is mainly required to be externally waterproof: in the technical Specification for waterproofing in underground engineering GB 50108-2008, article 3.1.4, the main structure of the upstream surface of the underground engineering is made of waterproof concrete, and other waterproof measures are taken according to the requirement of waterproof grade. The existing underground engineering does not perform external waterproofing, and the existing underground engineering fails although the existing underground engineering does not perform external waterproofing (a technical document for performing external waterproofing on the existing underground engineering is not retrieved at present), the main structure of the underground engineering is soaked in water for a long time, steel bars are corroded, concrete is peeled, and the underground space has serious water seepage and leakage sites, so that great hidden dangers are brought to the use and safety of buildings.
However, the existing underground engineering waterproof construction method has some disadvantages, such as:
1. the existing underground engineering waterproof construction method is complicated in the construction process, no good waterproof facility exists in underground water seepage, accumulated water is easy to exist in the underground water seepage, and the use of the underground facility is easily influenced due to excessive accumulated water in the underground engineering.
2. The existing underground engineering waterproof construction method has the defects that the concrete is easy to expand with heat and contract with cold after the concrete is poured in the using process due to large underground temperature difference in the construction process, so that the concrete is cracked, and the quality of the underground waterproof engineering is influenced.
Disclosure of Invention
The invention aims to provide a waterproof construction method for underground engineering, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a waterproof construction method for underground engineering comprises the following steps;
s1, pre-digging a foundation pit in a construction site, paving a flat cushion layer at the bottom of the foundation pit, binding reinforcing steel bars at the top of the cushion layer, pouring a concrete cushion layer through the reinforcing steel bars, and fixedly inserting a fixing frame on the side wall of the concrete cushion layer.
S2, connecting and pouring steel bars through the fixing frame, and fixedly welding a partition plate through one side of the inner wall of the fixing frame; the joint of the fixing frame and the pouring steel bar is filled with waterproof rubber, and the waterproof rubber is mutually attached to the fixing frame.
S3, pouring concrete through pouring steel bars, paving a waterproof layer on the surface of the concrete, paving a heat insulation layer on one side, far away from the concrete, of the waterproof layer, and fixedly paving a waterproof roll on one side, far away from the waterproof layer, of the heat insulation layer.
S4, fixedly welding a fixed top frame on the top of the fixing frame, welding a partition plate on the bottom of the fixed top frame, connecting and pouring steel bars through the fixed top frame, pouring a concrete layer through the poured steel bars, paving a waterproof layer on the top of the concrete layer, paving a heat insulation layer on one side, away from the concrete, of the waterproof layer, and fixedly paving a waterproof coiled material on one side, away from the waterproof layer, of the heat insulation layer.
And S5, fixedly arranging a diversion trench on the outer wall of the waterproof roll, wherein the diversion trench of the top waterproof roll and the diversion trench of the side waterproof roll are arranged on the top waterproof roll.
S6, concrete cushion both sides are located the mount outside and set up the guiding gutter, make guiding gutter and waterproofing membrane mutually support the waterproof layer has been laid to the guiding gutter bottom the protective cover has been laid to the guiding gutter top, sets up the discharge opening at the protective cover top.
Preferably, the waterproof layer is self-adhesive waterproof paint, and the self-adhesive waterproof paint is prepared by mixing SBS synthetic rubber, tackifier and road petroleum asphalt as base materials and high-density polyethylene film and polyester film as upper surface materials.
Preferably, the heat insulation layer is made of mineral wool.
Preferably, the concrete is added with a water reducing agent, triethanolamine and ferric chloride in the concrete mixture.
Preferably, the fixed frame and the fixed top frame are made of steel.
Preferably, the cushion layer is filled by adopting coarse-grained soil and fine-grained soil in a layered manner.
Preferably, gaps are reserved in the concrete cushion layer, and rubber waterproof layers are filled between the gaps.
Compared with the prior art, the invention has the beneficial effects that:
1. the waterproof roll and the diversion trench are used for collecting and discharging water in the using process, accumulated water can be discharged out of underground engineering through the diversion trench, the underground engineering is prevented from being accumulated with water, the use of the underground engineering is prevented from being influenced, and the concrete surface layer of the accumulated water waterproof engineering can be prevented from damaging the concrete through the waterproof layer.
2. The invention can carry out certain heat preservation on the underground waterproof construction engineering main body through the preset heat insulation layer, and when the temperature difference changes underground, the expansion and the contraction of the concrete are adapted through the preset waterproof rubber, thereby ensuring that the concrete can not crack due to expansion caused by heat and contraction caused by cold, and the quality of the underground waterproof engineering is not influenced.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, the present invention provides a technical solution: a waterproof construction method for underground engineering comprises the following steps;
s1, pre-digging a foundation pit in a construction site, paving a flat cushion layer at the bottom of the foundation pit, binding reinforcing steel bars at the top of the cushion layer, pouring a concrete cushion layer through the reinforcing steel bars, and fixedly inserting a fixing frame on the side wall of the concrete cushion layer.
S2, connecting and pouring steel bars through the fixing frame, and fixedly welding a partition plate through one side of the inner wall of the fixing frame; the joint of the fixing frame and the pouring steel bar is filled with waterproof rubber, and the waterproof rubber is mutually attached to the fixing frame.
S3, pouring concrete through pouring steel bars, paving a waterproof layer on the surface of the concrete, paving a heat insulation layer on one side, far away from the concrete, of the waterproof layer, and fixedly paving a waterproof roll on one side, far away from the waterproof layer, of the heat insulation layer.
S4, fixedly welding a fixed top frame on the top of the fixing frame, welding a partition plate on the bottom of the fixed top frame, connecting and pouring steel bars through the fixed top frame, pouring a concrete layer through the poured steel bars, paving a waterproof layer on the top of the concrete layer, paving a heat insulation layer on one side, away from the concrete, of the waterproof layer, and fixedly paving a waterproof coiled material on one side, away from the waterproof layer, of the heat insulation layer.
And S5, fixedly arranging a diversion trench on the outer wall of the waterproof roll, wherein the diversion trench of the top waterproof roll and the diversion trench of the side waterproof roll are arranged on the top waterproof roll.
S6, concrete cushion both sides are located the mount outside and set up the guiding gutter, make guiding gutter and waterproofing membrane mutually support the waterproof layer has been laid to the guiding gutter bottom the protective cover has been laid to the guiding gutter top, sets up the discharge opening at the protective cover top.
The waterproof layer is self-adhesive waterproof paint, which is prepared by mixing SBS synthetic rubber, tackifier and road petroleum asphalt as base material and high density polyethylene film and polyester film as upper surface material.
Wherein, the heat insulation layer is made of mineral wool.
Wherein, the concrete is added with a water reducing agent, triethanolamine and ferric chloride in the concrete mixture.
The fixing frame and the fixing top frame are made of steel.
Wherein, the cushion layer is filled by adopting coarse soil and fine soil in a layered manner.
Gaps are reserved in the concrete cushion layer, and rubber waterproof layers are filled between the gaps.
According to the invention, the waterproof coiled material and the diversion trench are used for collecting and discharging water in the use process, accumulated water can be discharged out of underground engineering through the diversion trench, the accumulated water of the underground engineering is prevented from influencing the use of the underground engineering, the concrete surface layer of the accumulated water waterproof engineering can be prevented from damaging the concrete through the waterproof layer, the main body of the underground waterproof construction engineering can be subjected to certain heat preservation through the preset heat insulation layer, and when the temperature difference change occurs underground, the expansion and contraction of the concrete are adapted through the preset waterproof rubber, so that the concrete is prevented from cracking due to expansion caused by heat and contraction caused by cold, and the quality of the underground waterproof engineering is not influenced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A waterproof construction method for underground engineering is characterized in that: comprises the following steps;
s1, pre-digging a foundation pit in a construction site, paving a flat cushion layer at the bottom of the foundation pit, binding reinforcing steel bars at the top of the cushion layer, pouring a concrete cushion layer through the reinforcing steel bars, and fixedly inserting a fixing frame on the side wall of the concrete cushion layer;
s2, connecting and pouring steel bars through the fixing frame, and fixedly welding a partition plate through one side of the inner wall of the fixing frame; waterproof rubber is filled at the joint of the fixing frame and the pouring steel bar, and the waterproof rubber is mutually attached to the fixing frame;
s3, pouring concrete through pouring steel bars, paving a waterproof layer on the surface of the concrete, paving a heat insulation layer on one side, far away from the concrete, of the waterproof layer, and fixedly paving a waterproof roll on one side, far away from the waterproof layer, of the heat insulation layer;
s4, fixedly welding a fixed top frame on the top of a fixed frame, welding a partition plate on the bottom of the fixed top frame, connecting casting steel bars through the fixed top frame, casting a concrete layer through the casting steel bars, paving a waterproof layer on the top of the concrete layer, paving a heat insulation layer on one side of the waterproof layer far away from the concrete, and fixedly paving a waterproof coiled material on one side of the heat insulation layer far away from the waterproof layer;
s5, fixedly arranging a diversion trench on the outer wall of the waterproof roll, wherein the diversion trench comprises a diversion trench of the top waterproof roll and a diversion trench of the side waterproof roll;
and S6, arranging guide grooves on the two sides of the concrete cushion layer outside the fixing frame, enabling the guide grooves to be matched with the waterproof coiled material arranged in the step S3, paving a waterproof layer at the bottoms of the guide grooves, paving a protective cover at the top of the guide grooves, and arranging drain holes at the top of the protective cover.
2. The waterproof construction method for underground works according to claim 1, characterized in that: the waterproof layer is self-adhesive waterproof paint which is prepared by mixing SBS synthetic rubber, tackifier and road petroleum asphalt as base material and high density polyethylene film or polyester film as upper surface material.
3. The waterproof construction method for underground works according to claim 1, characterized in that: the heat insulation layer is made of mineral wool.
4. The waterproof construction method for underground works according to claim 1, characterized in that: the concrete is prepared by adding a water reducing agent, triethanolamine and ferric chloride into a concrete mixture.
5. The waterproof construction method for underground works according to claim 1, characterized in that: the fixed frame and the fixed top frame are made of steel.
6. The waterproof construction method for underground works according to claim 1, characterized in that: the cushion layer is filled by adopting coarse-grained soil and fine-grained soil in a layered mode.
7. The waterproof construction method for underground works according to claim 1, characterized in that: gaps are reserved in the concrete cushion layer, and rubber waterproof layers are filled between the gaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910486652.3A CN110331740B (en) | 2019-06-05 | 2019-06-05 | Waterproof construction method for underground engineering |
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| CN201910486652.3A CN110331740B (en) | 2019-06-05 | 2019-06-05 | Waterproof construction method for underground engineering |
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| CN110331740A CN110331740A (en) | 2019-10-15 |
| CN110331740B true CN110331740B (en) | 2021-03-23 |
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| CN111663780B (en) * | 2020-06-30 | 2022-08-30 | 深圳市建工集团股份有限公司 | Synchronous construction method for outer wall waterproof layer and concrete structure |
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| KR100926183B1 (en) * | 2009-05-18 | 2009-11-10 | 협성개발(주) | Underground cave with waterproof structure |
| CN205522820U (en) * | 2016-04-29 | 2016-08-31 | 贵州省交通规划勘察设计研究院股份有限公司 | Waterproofing membrane for tunnel of subsidiary drainage water conservancy diversion function |
| CN206545228U (en) * | 2016-11-30 | 2017-10-10 | 上海东方雨虹防水工程有限公司 | A kind of piping lane with waterproof construction |
| CN206408645U (en) * | 2016-12-19 | 2017-08-15 | 江苏欧西建材科技发展有限公司 | A kind of pipe gallery guard system structure |
| CN107083780A (en) * | 2017-05-15 | 2017-08-22 | 江阴正邦化学品有限公司 | The full encirclement skin-type structure and construction method of a kind of underground waterproof engineering |
| CN107542115B (en) * | 2017-08-25 | 2023-10-13 | 西牛皮防水科技有限公司 | Underground engineering waterproof structure and construction method thereof |
| CN108842816A (en) * | 2018-07-18 | 2018-11-20 | 中铁贵州工程有限公司 | A kind of waterproofing for subway station structure and its construction technology |
| CN109183844B (en) * | 2018-10-31 | 2021-01-19 | 中国一冶集团有限公司 | Construction method for pre-paving and reversely-adhering TPO (thermoplastic polyolefin) waterproof coiled material on pipe gallery bottom plate |
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