CN110424432A - Basement mine pit bed course blocking method under a kind of hydraulic pressure infiltration condition - Google Patents
Basement mine pit bed course blocking method under a kind of hydraulic pressure infiltration condition Download PDFInfo
- Publication number
- CN110424432A CN110424432A CN201910670536.7A CN201910670536A CN110424432A CN 110424432 A CN110424432 A CN 110424432A CN 201910670536 A CN201910670536 A CN 201910670536A CN 110424432 A CN110424432 A CN 110424432A
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- China
- Prior art keywords
- basement
- bed course
- water
- mine pit
- hydraulic pressure
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Classifications
-
- 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
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
-
- 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
- E02D31/04—Watertight packings for use under hydraulic pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The invention discloses basement mine pit bed course blocking methods under a kind of hydraulic pressure infiltration condition, comprising the following steps: carries out removing surface to the bed course in basement hole or basement well；Early strong water-tight concrete is poured in the mat surface, forms impervious barrier after solidification；It drills at the water seepage hole of the impervious barrier, and slip casting is blocked in the hole being drilled.Beneficial effects of the present invention: the usage amount of Water slop injector and chemical grouting agent can be substantially reduced, it is ineffective it is suitable for lowering level of ground water or do not have the grouting for water plugging of basement mine pit bed course under precipitation condition, by pouring early strong water-tight concrete, new access is formed under pressure effect in underground water, slip casting is completed at low cost after placing Water slop injector by drilling again, can make basement mine pit bed course that there is good water-stagnating effect.
Description
Technical field
The present invention relates to bed course leakage stopping technology fields, it particularly relates to basement mine pit under a kind of hydraulic pressure infiltration condition
Bed course blocking method.
Background technique
Chemical grouting is widely used in basement mine pit waterproofing and leakage-stopping, but cast-in-place bed course shape under the conditions of artesian groundwater
It is ineffective at waterproofing and leakage-stopping after sand holes, since in basement mine pit bed course casting process, underground bearing water is formed in bed course
Penetrating passage and eyelet it is more so that slip casting machine can not be passed through after even drilling to all subtle water seepage hole bored groutings
Slip casting can also make chemical grout largely flow into underground and be unable to reach desired water-stagnating effect.
In addition, when being blocked by using " leak stopping spirit ", but due in basement mine pit sand holes it is more, and have biggish
Head effect, " leak stopping spirit " can not be bound tightly together completely the presetting period is short with bed course under head effect,
Corresponding sealing effect is not had.
If Water slop injector is placed in drilling directly on basement mine pit bed course, is pressurizeed by slip casting machine, infuse chemical grout
Enter in sand ground layer, but since there is more sand holes penetrating passage in underground, so that injection slurries are lost seriously in the earth formation, and leak stopping
Effect is poor, and sand holes still have infiltration to flow out after slip casting.
In addition, be 100mm according to the cushion thickness under design requirement Base isolation system, but it is practical in this engineering construction due to
Geological conditions is rock and sand ground layer, and scene does not have tube well dewatering condition, this makes aqueous in the following undisturbed formation of bed course hold
Pressure, and sand holes seepage channel is just formed inside bed course in basement bed course casting process, make mat surface ponding, after causing
Continuous waterproof roll can not be laid with by design requirement.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention proposes basement mine pit pad under a kind of hydraulic pressure infiltration condition
Layer blocking method, solve after basement mine pit bed course pours artesian groundwater head act on underlayer leakage problems, pass through
Drilling chemical grouting plugging effect pays no attention to that think over a problem and directly blocked with " leak stopping spirit " surface sand holes leak stopping of seeping water undesirable
Problem.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
Basement mine pit bed course blocking method under a kind of hydraulic pressure infiltration condition, comprising the following steps:
S1 carries out removing surface to the bed course in basement hole or basement well；
S2 pours early strong water-tight concrete in the mat surface, forms impervious barrier after solidification；
S3 drills at the water seepage hole of the impervious barrier, and slip casting is blocked in the hole being drilled.
Further, in S1, first by the basement cheat or the basement well in from the bed course it is supreme
Wall surface impact drill dabbing in the range of the bed course 20cm, it is then that the removing surface of the bed course is clean, it takes away more
Remaining seepage flow siltation water.
Further, the bed course is formed by the concreting that strength grade is C15.
Further, in S2, the morning strong water-tight concrete is poured into the basement hole or the basement well
Interior and vibration compacting needs uninterruptedly to extract in the basement hole or the basement well during concrete is in final set
Infiltration.
Further, the morning strong water-tight concrete marked as C30P6R.
Further, the impervious barrier with a thickness of 20cm.
Further, in S3, when slip casting, Water slop injector is placed in the hole being drilled first, then by the sealing needle
Head connection slip casting machine carries out grouting under pressure.
Further, the method also includes following steps:
S4 observes water-stagnating effect after slip casting terminates 30 minutes, if there is no ponding in basement hole or the basement well
Then grouting amount meets slip casting requirement, and ejection for water plugging is qualified.
Beneficial effects of the present invention: the usage amount of Water slop injector and chemical grouting agent can be substantially reduced, it is suitable for undergrounds
Dewatering effect is bad or does not have the grouting for water plugging of basement mine pit bed course under precipitation condition, by pouring early strong impervious coagulation
Soil forms new access under pressure effect in underground water, then completes note at low cost after placing Water slop injector by drilling
Slurry can make basement mine pit bed course have good water-stagnating effect.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 be under the hydraulic pressure infiltration condition described according to embodiments of the present invention basement mine pit bed course blocking method in slip casting
When schematic diagram.
In figure:
1, original state consolidated sand stratum；2, bed course；3, impervious barrier；4, Water slop injector；5, slip casting machine；6, seep water access.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, basement mine pit bed course leak stopping under a kind of hydraulic pressure infiltration condition according to embodiments of the present invention
Method, comprising the following steps:
S1 carries out removing surface to the bed course 2 in basement hole or basement well；
S2 pours early strong water-tight concrete on 2 surface of bed course, and impervious barrier 3 is formed after solidification；
S3 drills at the water seepage hole of the impervious barrier 3, and slip casting is blocked in the hole being drilled.
In one particular embodiment of the present invention, in S1, first by the basement cheat or the basement well in
From the bed course 2 to be higher than 2 20cm of bed course in the range of wall surface impact drill dabbing, then by the bed course 2
Removing surface it is clean, take extra seepage flow siltation water away.
In one particular embodiment of the present invention, the bed course 2 is formed by the concreting that strength grade is C15.
In one particular embodiment of the present invention, in S2, the morning strong water-tight concrete is poured into the underground
Room hole or the interior simultaneously vibration compacting of the basement well, need uninterruptedly to extract the basement during concrete is in final set
Infiltration in hole or the basement well.
In one particular embodiment of the present invention, the morning strong water-tight concrete marked as C30P6R.
In one particular embodiment of the present invention, the impervious barrier 3 with a thickness of 20cm.
In one particular embodiment of the present invention, in S3, when slip casting, Water slop injector is placed in the hole being drilled first
4, the Water slop injector 4 connection slip casting machine 5 is then subjected to grouting under pressure.
In one particular embodiment of the present invention, the method also includes following steps:
S4 observes water-stagnating effect after slip casting terminates 30 minutes, if there is no ponding in basement hole or the basement well
Then grouting amount meets slip casting requirement, and ejection for water plugging is qualified.
In order to facilitate above-mentioned technical proposal of the invention is understood, below by way of specifically used mode to above-mentioned skill of the invention
Art scheme is described in detail.
Basement mine pit (basement hole or basement well) is formed by concreting, and bed course 2 is located at original state iron plate sand ground
The top of layer (artesian aquifer) 1, bed course 2 are formed by the concreting that strength grade is C15, and the top of bed course 2 is impervious barrier
3, impervious barrier 3 with a thickness of 20cm, impervious barrier 3 is poured by early strong water-tight concrete, early strong water-tight concrete marked as
C30P6R。
Cardinal principle of the invention is that one layer of 20cm is thick early to be resisted by force by pouring on the bed course 2 of original basement mine pit
It seeps concrete and carries out surface ballast, make the shape in the early strong water-tight concrete newly poured of the artesian water from the outflow of the sand holes of bed course 2
At the infiltration access 6 of limited quantity, impervious barrier 3, infiltration access 6 and impervious barrier 3 are formed after early strong water-tight concrete hardening solidification
Water seepage hole connection on surface, then carries out bored grouting to the water seepage hole on impervious barrier 3, chemical grout is made to be filled up completely infiltration
In water passage 6 and part bed course 2, underground bearing water is separated by the method, it is a large amount of that the method had both avoided chemical grout
It is lost, and slip casting is made to play good water-stagnating effect.
Basement mine pit bed course blocking method specifically includes following steps under hydraulic pressure infiltration condition of the present invention:
1) by basement mine pit from bed course 2 to the wall surface impact drill dabbing being higher than in the range of 2 20cm of bed course, with
It is secured conducive to conjunction old and new concret and 2 removing surface of bed course is clean, take extra seepage flow siltation water away.
2) early strong water-tight concrete (slump 180mm) is poured into basement mine pit and guarantees newly to pour early strong impervious
Concrete vibrating is closely knit, will form new penetrating passage 6 in the case where underground water has pressure by oneself before early strong water-tight concrete initial set, early strong
Water-tight concrete will uninterruptedly extract the infiltration in basement mine pit during final set, prevent the morning newly poured strong water-tight concrete
The ratio of mud increases, the quality after influencing final set.
3) it drills at the water seepage hole on its surface after early strong water-tight concrete final set, sealing needle is placed in the hole being drilled
First 4, and connect slip casting machine 5 and carry out grouting under pressure sealing, the model AG-U6 of slip casting machine 5.
4) water-stagnating effect is observed after slip casting terminates 30 minutes, grouting amount meets if basement mine pit is interior there is no ponding
Slip casting requirement, ejection for water plugging are qualified.
In conclusion by means of above-mentioned technical proposal of the invention, it is bad or do not having to solve underground water precipitation condition
It makes preparation for dropping under the conditions of phreatic low, the defect of basement mine pit waterproofing and leakage-stopping under the conditions of from pressure water；It is cheated in rises basement
The morning strong water-tight concrete that 20cm thickness is poured on bed course in well is logical by forming limited quantity infiltration under own effect of water pressure
Road, and the bed course of original more sand holes is become into limited quantity and is newly seeped water access；To what is formed on early strong water-tight concrete surface
Water seepage hole drills, place Water slop injector, by slip casting machine grouting for water blocking, avoid directly basement mine pit drilling after to
The problem of blindness slip casting and water plugging effect difference in stratum；Chemical grout and Water slop injector, warp are saved in waterproofing and leakage-stopping whole process
It helps profitable.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. basement mine pit bed course blocking method under a kind of hydraulic pressure infiltration condition, which comprises the following steps:
S1 carries out removing surface to the bed course (2) in basement hole or basement well；
S2 pours early strong water-tight concrete on the bed course (2) surface, forms impervious barrier (3) after solidification；
S3 drills at the water seepage hole of the impervious barrier (3), and slip casting is blocked in the hole being drilled.
2. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that in S1
In, first by the basement cheat or the basement well in from the bed course (2) to higher than the bed course (2) 20cm
Wall surface impact drill dabbing in range, it is then that the removing surface of the bed course (2) is clean, take extra seepage flow siltation water away.
3. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that described
Bed course (2) is formed by the concreting that strength grade is C15.
4. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that in S2
In, the morning strong water-tight concrete is poured into the basement hole or the basement well simultaneously vibration compacting, described mixed
Solidifying soil needs uninterruptedly to extract the infiltration in the basement hole or the basement well during final set.
5. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that described
Early strong water-tight concrete marked as C30P6R.
6. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 2, which is characterized in that described
Impervious barrier (3) with a thickness of 20cm.
7. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that in S3
In, when slip casting, Water slop injector (4) are placed first in the hole being drilled, the Water slop injector (4) are then connected into slip casting machine (5)
Carry out grouting under pressure.
8. basement mine pit bed course blocking method under hydraulic pressure infiltration condition according to claim 1, which is characterized in that described
Method is further comprising the steps of:
S4 observes water-stagnating effect after slip casting terminates 30 minutes, if there is no ponding in basement hole or the basement well
Then grouting amount meets slip casting requirement, and ejection for water plugging is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670536.7A CN110424432B (en) | 2019-07-24 | 2019-07-24 | Basement well cushion layer plugging method under water pressure permeation condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670536.7A CN110424432B (en) | 2019-07-24 | 2019-07-24 | Basement well cushion layer plugging method under water pressure permeation condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110424432A true CN110424432A (en) | 2019-11-08 |
| CN110424432B CN110424432B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910670536.7A Active CN110424432B (en) | 2019-07-24 | 2019-07-24 | Basement well cushion layer plugging method under water pressure permeation condition |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1370252A1 (en) * | 1986-09-22 | 1988-01-30 | Государственный Институт По Изысканиям И Проектированию Мостов "Ленгипротрансмост" | Counter-seepage lock of lining of underwater tunnel |
| CN208088323U (en) * | 2018-03-27 | 2018-11-13 | 广东中青建筑科技有限公司 | A kind of basement enclosure wall rises leak stopping reinforced structure |
| CN109098213A (en) * | 2018-08-29 | 2018-12-28 | 中国建筑第四工程局有限公司 | A kind of basement blocking method |
-
2019
- 2019-07-24 CN CN201910670536.7A patent/CN110424432B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1370252A1 (en) * | 1986-09-22 | 1988-01-30 | Государственный Институт По Изысканиям И Проектированию Мостов "Ленгипротрансмост" | Counter-seepage lock of lining of underwater tunnel |
| CN208088323U (en) * | 2018-03-27 | 2018-11-13 | 广东中青建筑科技有限公司 | A kind of basement enclosure wall rises leak stopping reinforced structure |
| CN109098213A (en) * | 2018-08-29 | 2018-12-28 | 中国建筑第四工程局有限公司 | A kind of basement blocking method |
Non-Patent Citations (2)
| Title |
|---|
| 位国喜等: "注浆与抹面相结合治理某住宅楼地下室渗漏", 《中国建筑防水》 * |
| 王丽梅等主编: "《建筑工程施工技术》", 30 September 2015, 西南交通大学出版社 * |
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| CN110424432B (en) | 2021-09-24 |
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