CN110777829A - Method for treating fixed-point water burst on substrate - Google Patents
Method for treating fixed-point water burst on substrate Download PDFInfo
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- CN110777829A CN110777829A CN201911063663.7A CN201911063663A CN110777829A CN 110777829 A CN110777829 A CN 110777829A CN 201911063663 A CN201911063663 A CN 201911063663A CN 110777829 A CN110777829 A CN 110777829A
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- well
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of substrate construction, in particular to a method for treating fixed-point water burst of a substrate. The invention keeps the water level in the 'false well' stable by making a 'false well' and reasonably selecting the water pump, and the problem of fixed-point water burst of the base is treated by filtering type pumping drainage, thereby quickly creating conditions for the construction of the bottom plate and avoiding the safety risk caused by long-time exposure of the bottom plate. And after the bottom plate construction is finished, reducing the well pipe into well pipes with the same pipe diameter as other dewatering wells by using reducing, and finally sealing the wells. The invention effectively solves the problem of fixed-point water gushing of the basement and has the advantages of simple construction, safety, high efficiency, low cost and the like. The invention is mainly applied to the aspect of substrate water burst treatment.
Description
Technical Field
The invention relates to the technical field of substrate construction, in particular to a method for treating fixed-point water burst of a substrate.
Background
At present, with the development of national economy of China, the construction strength is continuously increased, a large number of foundation pit projects are developed, and a large number of unpredictable construction influence factors exist due to complex geological conditions. When the foundation pit is excavated to the bottom, namely the foundation pit engineering risk is the greatest, once a large amount of water gushes, the traditional backfill back-pressure grouting method is adopted, the back-pressure effect is not obvious, and then the double-liquid slurry cannot be solidified in the shortest time. If the treatment is not timely, the substrate is exposed for a long time without bottom sealing construction, and great risks and difficulties are brought to construction safety.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for treating the fixed-point water burst of the substrate. The method effectively solves the problem of water inrush at the base, and has high efficiency and low cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for treating the fixed-point water gushing of a substrate comprises the following steps:
a. manufacturing a well pipe, namely taking a section of threaded steel pipe, wherein the bottom of the threaded steel pipe is sealed and fixed by adopting a bottom plate, and a rectangular hole is formed in the lower half part of a well pipe body;
b. shallow excavation is carried out at a fixed point, a false well is constructed, a water burst point is found, an excavator is used for excavating under the water burst point, the well pipe which is manufactured is placed at a specified position and vertically straightened, then sand and soil between the water burst point and the well pipe are excavated, and a particle size filter material is backfilled;
c. and (5) pumping water from the false well and quickly sealing the bottom. After the construction of the false well is finished, a water pump is arranged for pumping water, a bottom plate is paved on the sandy soil, when the bottom plate is used for steel bar construction, waterproof treatment is carried out on the periphery of the well pipe, and finally concrete is poured;
d. and after the bottom plate reaches a certain strength, the well pipe is gradually extended to a still water level through reducing along with the construction of the structure, and finally the water pump is pulled out to be sealed together with other dewatering wells of the foundation pit.
The well pipe is DN600 threaded steel pipe.
The water pump adopts a sewage pump, and the bottom of the sewage pump is 30mm away from the bottom of the false well.
The filter material is a spherical filter material.
Compared with the prior art, the invention has the beneficial effects that:
the well pipe is arranged below the bottom plate at the water burst point of the foundation pit and is processed into the perforated pipe, the filtering material and the perforated pipe are used for filtering and efficiently draining the foundation water burst, the construction of the main body structure is not influenced, the construction is convenient, the water burst treatment efficiency is high, the technical problem that the foundation pit foundation water burst treatment is difficult under the complex geological condition is solved with low investment, and the method can be widely applied to treating fixed-point water burst in the engineering construction field.
Drawings
FIG. 1 is a schematic view of the construction structure of the present invention;
FIG. 2 is a schematic view of a well pipe according to the invention;
in the figure: 1 is a well pipe, 2 is a rectangular hole, 3 is a filter material, 4 is a bottom plate, 5 is a reducing pipe, 6 is sand, and 7 is a water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
A method for treating the fixed-point water gushing of a substrate comprises the following steps:
a. manufacturing a well pipe 1, as shown in fig. 2, taking a section of 4-meter long threaded steel pipe, wherein the bottom of the section of the 4-meter long threaded steel pipe is sealed and fixed by a steel bottom plate 4, rectangular holes 2 are formed in the lower half part of a pipe body of the well pipe 1, the rectangular holes 2 are formed by vertically cutting, the size of each rectangular hole is 8mm multiplied by 70mm, each rectangular hole 2 is longitudinally and radially separated by 20mm, a flower pipe with the length of two meters is formed, and the flower pipe is a solid pipe with the length of 100;
b. shallow excavation at fixed point, constructing a false well, finding a water burst point, excavating two meters below one meter away from the water burst point by using an excavator as shown in figure 1, putting the well pipe 1 which is manufactured at a specified position, vertically straightening, excavating sandy soil 6 between the water burst point and the well pipe 1, backfilling a filter material 3 with the particle size of 3mm, wherein the filter material 3 has certain roundness, slice-shaped and needle-shaped stone chips are strictly forbidden to use, each azimuth filler is uniform, the speed is not too high, and the well pipe is prevented from deviating;
c. and (5) pumping water from the false well and quickly sealing the bottom. After the construction of the 'false well' is finished, a water pump 7 is immediately arranged for pumping water, and water pump parameters are selected according to the water quantity, so that the inlet and outlet water in the well are kept in a balanced state. A bottom plate 4 is laid on the sandy soil 6, when the bottom plate 4 is constructed by steel bars, a circle of water stop ring is welded on the periphery of the well pipe 1 by a steel plate, and finally concrete is poured;
d. and (3) extending the well pipe, sealing the well by still water, gradually extending the well pipe to the still water level through the reducing pipe 5 along with the construction of the structure after the bottom plate 4 reaches a certain strength, finally pulling out the water pump 7, and sealing the well together with other dewatering wells of the foundation pit.
Preferably, the well casing 1 is a DN600 threaded steel pipe.
Preferably, the water pump 7 is a sewage pump, and the bottom of the sewage pump is kept at a distance of 30mm from the bottom of the false well.
Preferably, the filter material 3 is a spherical filter material.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (4)
1. A method for treating the fixed-point water inrush of a substrate is characterized by comprising the following steps:
a. manufacturing a well pipe, namely taking a section of threaded steel pipe, wherein the bottom of the threaded steel pipe is sealed and fixed by adopting a bottom plate, and a rectangular hole is formed in the lower half part of a well pipe body;
b. shallow excavation is carried out at a fixed point, a false well is constructed, a water burst point is found, an excavator is used for excavating under the water burst point, the well pipe which is manufactured is placed at a specified position and vertically straightened, then sand and soil between the water burst point and the well pipe are excavated, and a particle size filter material is backfilled;
c. pumping water from a false well, quickly sealing the bottom, placing a water pump for pumping water after the construction of the false well is finished, laying a bottom plate on sandy soil, performing waterproof treatment on the periphery of a well pipe when the bottom plate is used for constructing steel bars, and finally pouring concrete;
d. and after the bottom plate reaches a certain strength, the well pipe is gradually extended to a still water level through reducing along with the construction of the structure, and finally the water pump is pulled out to be sealed together with other dewatering wells of the foundation pit.
2. The method of claim 1, wherein the method comprises the steps of: the well pipe is DN600 threaded steel pipe.
3. The method of claim 1, wherein the method comprises the steps of: the water pump adopts a sewage pump, and the bottom of the sewage pump is 30mm away from the bottom of the false well.
4. The method of claim 1, wherein the method comprises the steps of: the filter material is a spherical filter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063663.7A CN110777829A (en) | 2019-11-04 | 2019-11-04 | Method for treating fixed-point water burst on substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063663.7A CN110777829A (en) | 2019-11-04 | 2019-11-04 | Method for treating fixed-point water burst on substrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110777829A true CN110777829A (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911063663.7A Pending CN110777829A (en) | 2019-11-04 | 2019-11-04 | Method for treating fixed-point water burst on substrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281882A (en) * | 2020-10-25 | 2021-01-29 | 中铁十二局集团有限公司 | Method for treating water and sand gushing from substrate |
| CN112609720A (en) * | 2020-12-04 | 2021-04-06 | 中建五局土木工程有限公司 | Precipitation construction method suitable for deep foundation pit of high-pressure-bearing water-rich karst stratum |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476322A (en) * | 2017-08-10 | 2017-12-15 | 魏玉建 | Well-points dewatering automatic servo compensation technique |
| CN110318410A (en) * | 2019-06-27 | 2019-10-11 | 联建建设工程有限公司 | A kind of deep basal pit chance artesian water is prominent to gush decompression drought stress construction method |
-
2019
- 2019-11-04 CN CN201911063663.7A patent/CN110777829A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476322A (en) * | 2017-08-10 | 2017-12-15 | 魏玉建 | Well-points dewatering automatic servo compensation technique |
| CN110318410A (en) * | 2019-06-27 | 2019-10-11 | 联建建设工程有限公司 | A kind of deep basal pit chance artesian water is prominent to gush decompression drought stress construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281882A (en) * | 2020-10-25 | 2021-01-29 | 中铁十二局集团有限公司 | Method for treating water and sand gushing from substrate |
| CN112609720A (en) * | 2020-12-04 | 2021-04-06 | 中建五局土木工程有限公司 | Precipitation construction method suitable for deep foundation pit of high-pressure-bearing water-rich karst stratum |
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Application publication date: 20200211 |