CN107288658A - Underground concrete water-proof engineering connects the casting method of stubble seam - Google Patents
Underground concrete water-proof engineering connects the casting method of stubble seam Download PDFInfo
- Publication number
- CN107288658A CN107288658A CN201710660799.0A CN201710660799A CN107288658A CN 107288658 A CN107288658 A CN 107288658A CN 201710660799 A CN201710660799 A CN 201710660799A CN 107288658 A CN107288658 A CN 107288658A
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- Prior art keywords
- slip casting
- pipe
- slurry
- built
- grouting
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention discloses the casting method that underground concrete water-proof engineering connects stubble seam, the casting method that the underground concrete water-proof engineering described in it connects stubble seam is：The local built-in slip casting pipe for connecing batch gap is left between Jiu Bi and new set shaft wall structure；Described built-in slip casting pipe is inverted " u "-shaped pipe, the top of inverted " u "-shaped pipe, two middle side parts set the slip casting mouth of pipe, built-in slip casting pipe is φ 40mm coating steel pipes, built-in slip casting pipe sets four φ 5mm injected holes every 300mm in tube wall surrounding, four φ 5mm injected holes are clung with adhesive tape, and built-in slip casting pipe slip casting after wall is carried out again after newly set borehole wall concrete reaches design strength；This invention ensures that stubble seam is connect in concrete construction can reach impermeable effect, construction risk is reduced, it is ensured that construction quality.
Description
Technical field
The side of pouring of stubble seam is met the present invention relates to a kind of casting method, more particularly to a kind of underground concrete water-proof engineering
Method.
Background technology
Cast-in-place concrete construction engineering in underground is more in recent years, has many down-hole water yields big, to underground Chamber Construction
Waterproof requirement is high, and casting concrete is typically poured using supporting module, and 1.5-6m is generally per mould length, every mould it
Between can leave and connect a batch gap, this gap is likely to cause infiltration, does not reach waterproof requirement.
The content of the invention
In order to make up the deficiencies in the prior art, it is anti-there is provided a kind of underground concrete that solution concrete connects stubble seam seepage problem
Hydraulic Projects connect the casting method of stubble seam.
The present invention solve its technical problem technical scheme be：
Underground concrete water-proof engineering connects the casting method of stubble seam, and the underground concrete water-proof engineering described in it connects pouring for stubble seam
Method is：1. the local built-in slip casting pipe for connecing batch gap, is left between Jiu Bi and new set shaft wall structure；Described pre-buried slip casting
Manage as inverted " u "-shaped pipe, the top of inverted " u "-shaped pipe, two middle side parts set the slip casting mouth of pipe, built-in slip casting pipe is φ 40mm galvanized steels
Pipe, built-in slip casting pipe sets four φ 5mm injected holes, four φ 5mm injected hole adhesive tapes every 300mm in tube wall surrounding
Cling, built-in slip casting pipe slip casting after wall is carried out again after newly set borehole wall concrete reaches design strength；
2., slip casting proportioning parameter：Inject slurry material and use single slurry+dual slurry, cement selection P.OR42.5 cement, the ratio of mud
For 1：1, or 1：0.5-0.75, dual slurry C：S=1：0.6~0.4, waterglass is 38~40 from liquid silicic acid sodium form, concentration
Baume, modulus are 2.8 waterglass, and described single slurry refers to water and cement by 1：1 is made into cement mortar, described dual slurry
Refer to 1：1 cement mortar adds water the slurries that two kinds of slurries of glass are mixed into proportion, and C is by 1：1 is made into cement mortar, and S is waterglass；
Cement mortar match ratio such as table 1 below
Table 1
3., grouting pressure：1.0~2.0MPa of grouting pressure is controlled, when slurries are obstructed, grouting pressure can be properly increased, but
1.4 times of hydrostatic pressure are not to be exceeded in maximum；
4., time for injecting：New set shaft wall structure maintenance, which reaches, starts slip casting after design strength；
5., slip casting ending standard：Final grouting pressure is reached after requirement；
6., grouting equipment：The equipment used during slip casting mainly includes, grouting pump one, grouting pump maximum grouting pressure
3Mpa, one, mixer；
7., slip casting operation：Before slip casting, the Grouting Pipe for the treating slip casting 2 slip casting tube valves adjacent with its are opened, the borehole wall will be newly covered
Left and right side reserve injected hole be connected with built-in slip casting pipe in the borehole wall, during slip casting with the borehole wall two help reserve injected hole based on, top is pre-
Stay injected hole after left and right side well wall clearance grouting terminates to examine slip casting effect and be used as supplement injected hole when needed, left,
Single slurry, the ratio of mud 1 are noted between the borehole wall of right side:Based on 1, other ratio of muds are determined to use according to field condition change, and such as slip casting is led to
Road is unimpeded, when grouting pressure is not pressed above, and the ratio of mud can be adjusted according to live slip casting situation, that is, increases cement proportion or reduce water
Ratio is adjusted, and the cement mortar ratio of mud is 1 during note dual slurry：1, cement mortar is with waterglass volume ratio：1：0.6~0.4；Slip casting
Based on single liquid cement mortar, supplemented by cement-waterglass dual slurry, dual slurry only is used when slip casting completes sealing of hole, will be stirred
Good cement grout is pressed between Shaft Linings and connect a batch position, forms water shutoff curtain, and slip casting mainly reaches that the borehole wall is sealed to cut off the water supply
For the purpose of water, while carrying out sealing of hole to reserved injected hole；Single hole once grouting amount is 1.3 m3- 1.6 m3, during slip casting, when
Adjacent ports valve door is closed during the continuous pulp of adjacent holes, this hole slip casting can be stopped by being quantitatively pressed into after cement mortar, close valve, Ran Houjie
To adjacent hole slip casting；Run into slurry consolidation is altered in Grouting Pipe and when causing plugging, need to be with lengthening drill hammer siphunculus；When running
When starching, altering slurry, pass through interval slip casting（Interval 3-5 minutes）, adjustment concentration of slurry, that is, increase cement proportion or reduce water ratio
To adjust, dual slurry closure is finally injected, one piece pours shaping.
The beneficial effects of the invention are as follows：
1st, this invention ensures that stubble seam is connect in concrete construction can reach impermeable effect, construction risk is reduced, it is ensured that
Construction quality.
Brief description of the drawings
Fig. 1 is built-in slip casting pipe layout drawing between underworkings cross section Jiu Bi and new set shaft wall structure.
Fig. 2 is cross-sectional view of the built-in slip casting pipe in underworkings.
Embodiment
In Fig. 1 Fig. 2, underground concrete water-proof engineering connects the casting method of stubble seam, the underground concrete water-proof work described in it
Journey connect stubble seam casting method be：1. the local pre-buried slip casting for connecing batch gap, is left between old wall 1 and the new set structure of the borehole wall 3
Pipe 2；Described built-in slip casting pipe 2 is inverted " u "-shaped pipe, and the top of inverted " u "-shaped pipe, two middle side parts set the slip casting mouth of pipe, pre-buried note
Slurry pipe 2 is φ 40mm coating steel pipes, and built-in slip casting pipe 2 sets four φ 5mm injected holes, four every 300mm in tube wall surrounding
φ 5mm injected holes are clung with adhesive tape, and built-in slip casting pipe after wall is carried out again after the newly set concrete of the borehole wall 3 reaches design strength
2 slip castings；
2., slip casting proportioning parameter：Inject slurry material and use single slurry+dual slurry, cement selection P.OR42.5 cement, the ratio of mud
For 1：1, or 1：0.5-0.75, dual slurry C：S=1：0.6~0.4, waterglass is 38~40 from liquid silicic acid sodium form, concentration
Baume, modulus are 2.8 waterglass, and described single slurry refers to water and cement by 1：1 is made into cement mortar, described dual slurry
Refer to 1：1 cement mortar adds water the slurries that two kinds of slurries of glass are mixed into proportion, and C is by 1：1 is made into cement mortar, and S is waterglass；
Cement mortar match ratio such as table 1 below
Table 1
3., grouting pressure：1.0~2.0MPa of grouting pressure is controlled, when slurries are obstructed, grouting pressure can be properly increased, but
1.4 times of hydrostatic pressure are not to be exceeded in maximum；
4., time for injecting：New set shaft wall structure maintenance, which reaches, starts slip casting after design strength；
5., slip casting ending standard：Final grouting pressure is reached after requirement；
6., grouting equipment：The equipment used during slip casting mainly includes, grouting pump one, grouting pump maximum grouting pressure
3Mpa, one, mixer；
7., slip casting operation：Before slip casting, the Grouting Pipe for the treating slip casting 2 slip casting tube valves adjacent with its are opened, the borehole wall will be newly covered
3 left and right sides are reserved injected hole and be connecteds with built-in slip casting pipe in the borehole wall, help to reserve based on the slip casting mouth of pipe with the borehole wall two during slip casting, push up
The slip casting mouth of pipe is reserved after left and right side well wall clearance grouting terminates to examine slip casting effect and when needed as supplement slip casting in portion
Hole, left and right side well wall clearance grouting note single slurry, the ratio of mud 1:Based on 1, other ratio of muds change determination according to field condition and adopted
With such as slip casting passage is unimpeded, when grouting pressure is not pressed above, can adjust the ratio of mud according to live slip casting situation, that is, increase cement ratio
Example reduces the ratio of water to adjust, and the cement mortar ratio of mud is 1 during note dual slurry：1, cement mortar is with waterglass volume ratio：1：
0.6~0.4；Slip casting is only used based on single liquid cement mortar, supplemented by cement-waterglass dual slurry when slip casting completes sealing of hole
Dual slurry, the cement grout being stirred is pressed between Shaft Linings and a batch position is connect, and forms water shutoff curtain, and slip casting is mainly to cut off water
Source is reached for the purpose of borehole wall water shutoff, while carrying out sealing of hole to reserved injected hole；Single hole once grouting amount is 1.3 m3- 1.6 m3,
During slip casting, adjacent ports valve door is closed when the continuous pulp of adjacent holes, can stop this hole slip casting after being quantitatively pressed into cement mortar, close
Valve closing door, is then followed by adjacent hole slip casting；Run into and slurry consolidation is altered in Grouting Pipe and when causing plugging, need to be led to drill hammer is lengthened
Pipe；When running pulp occur, altering slurry, pass through interval slip casting（Interval 3-5 minutes）, adjustment concentration of slurry, that is, increase cement proportion or
Reduce the ratio of water to adjust, finally inject dual slurry closure, one piece pours shaping.
Claims (1)
1. underground concrete water-proof engineering connects the casting method of stubble seam, it is characterised in that：Described underground concrete water-proof engineering
Connecing the casting method of stubble seam is：1., in Jiu Bi（1）With the new set borehole wall（3）The local pre-buried note for connecing batch gap is left between structure
Slurry pipe（2）；Described built-in slip casting pipe（2）For inverted " u "-shaped pipe, the top of inverted " u "-shaped pipe, two middle side parts set the slip casting mouth of pipe,
Built-in slip casting pipe（2）For φ 40mm coating steel pipes, built-in slip casting pipe（2）Four φ 5mm are set to note in tube wall surrounding every 300mm
Hole is starched, four φ 5mm injected holes are clung with adhesive tape, treat newly to cover the borehole wall（3）Concrete reaches carries out wall again after design strength
Built-in slip casting pipe afterwards（2）Slip casting；
2., slip casting proportioning parameter：Inject slurry material and use single slurry+dual slurry, cement selection P.OR42.5 cement, the ratio of mud
For 1：1, or 1：0.5-0.75, dual slurry C：S=1：0.6~0.4, waterglass is 38~40 from liquid silicic acid sodium form, concentration
Baume, modulus are 2.8 waterglass, and described single slurry refers to water and cement by 1：1 is made into cement mortar, described dual slurry
Refer to 1：1 cement mortar adds water the slurries that two kinds of slurries of glass are mixed into proportion, and C is by 1：1 is made into cement mortar, and S is waterglass；
Cement mortar match ratio such as table 1 below
Table 1
3., grouting pressure：1.0~2.0MPa of grouting pressure is controlled, when slurries are obstructed, grouting pressure can be properly increased, but
1.4 times of hydrostatic pressure are not to be exceeded in maximum；
4., time for injecting：New set shaft wall structure maintenance, which reaches, starts slip casting after design strength；
5., slip casting ending standard：Final grouting pressure is reached after requirement；
6., grouting equipment：The equipment used during slip casting mainly includes, grouting pump one, grouting pump maximum grouting pressure
3Mpa, one, mixer；
7., slip casting operation：Before slip casting, the built-in slip casting pipe of slip casting will be treated（2）The two slip casting mouth of pipe valves adjacent with its are opened,
The borehole wall will newly be covered（3）Left and right side reserves the slip casting mouth of pipe and built-in slip casting pipe in the borehole wall（2）Connection, helps pre- during slip casting with the borehole wall two
Stay based on the slip casting mouth of pipe, top reserve the slip casting mouth of pipe after left and right side well wall clearance grouting terminates to examine slip casting effect and
As supplement injected hole when needing, left and right side well wall clearance grouting note single slurry, the ratio of mud 1:Based on 1, other ratio of muds are according to existing
The change of situation determines to use, and such as slip casting passage is unimpeded, and grouting pressure is not upper when pressing, and water ash can be adjusted according to live slip casting situation
Than increasing cement proportion or reducing the ratio of water to adjust, the cement mortar ratio of mud is 1 during note dual slurry：1, cement mortar and water
Glass volume ratio is：1：0.6~0.4；Slip casting is based on single liquid cement mortar, supplemented by cement-waterglass dual slurry, only in note
Slurry is completed to use dual slurry during sealing of hole, and a batch position is pressed between Shaft Linings and connects by the cement grout being stirred；Single hole once grouting
Measure as 1.3m3- 1.6 m3, during slip casting, adjacent ports valve door is closed when the continuous pulp of adjacent holes, is quantitatively pressed into after cement mortar i.e.
This hole slip casting can be stopped, valve is closed, be then followed by adjacent hole slip casting；Run into slurry consolidation is altered in Grouting Pipe and when causing plugging,
Lengthening drill hammer siphunculus need to be used；When running pulp occur, altering slurry, by interval slip casting, slip casting in 3-5 minutes is spaced, slurries are adjusted
Concentration, that is, increase cement proportion or reduce the ratio of water to adjust, finally inject dual slurry closure, one piece pours shaping.
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| CN201710660799.0A CN107288658B (en) | 2017-08-04 | 2017-08-04 | Underground concrete water-proof engineering connects the casting method of stubble seam |
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|---|---|---|---|
| CN201710660799.0A CN107288658B (en) | 2017-08-04 | 2017-08-04 | Underground concrete water-proof engineering connects the casting method of stubble seam |
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| CN107288658A true CN107288658A (en) | 2017-10-24 |
| CN107288658B CN107288658B (en) | 2019-04-26 |
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Cited By (6)
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|---|---|---|---|---|
| CN109667586A (en) * | 2019-01-07 | 2019-04-23 | 中国矿业大学 | A kind of double-layer wall of well grouting system and grouting method |
| CN110541718A (en) * | 2019-09-20 | 2019-12-06 | 中国建筑土木建设有限公司 | Secondary lining back backfill grouting pipe and grouting method |
| CN111946297A (en) * | 2020-08-19 | 2020-11-17 | 新地能源工程技术有限公司 | Filling and curing slurry and horizontal directional drilling grouting collapse prevention process |
| CN114875854A (en) * | 2022-04-28 | 2022-08-09 | 河南安钢集团舞阳矿业有限责任公司 | Anti-leakage method for overflow culvert of tailing pond |
| CN114991701A (en) * | 2022-05-17 | 2022-09-02 | 湖北道泽勘测设计院有限公司 | Method for plugging drilled hole by adopting cement paste and water glass mixed solution |
| WO2023202455A1 (en) * | 2022-04-18 | 2023-10-26 | 中国矿业大学 | Single-layer well wall having jointed water-stop structure and grouting system, and construction method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109667586A (en) * | 2019-01-07 | 2019-04-23 | 中国矿业大学 | A kind of double-layer wall of well grouting system and grouting method |
| CN109667586B (en) * | 2019-01-07 | 2020-07-28 | 中国矿业大学 | Grouting method of double-layer well wall grouting system |
| CN110541718A (en) * | 2019-09-20 | 2019-12-06 | 中国建筑土木建设有限公司 | Secondary lining back backfill grouting pipe and grouting method |
| CN111946297A (en) * | 2020-08-19 | 2020-11-17 | 新地能源工程技术有限公司 | Filling and curing slurry and horizontal directional drilling grouting collapse prevention process |
| WO2023202455A1 (en) * | 2022-04-18 | 2023-10-26 | 中国矿业大学 | Single-layer well wall having jointed water-stop structure and grouting system, and construction method therefor |
| CN114875854A (en) * | 2022-04-28 | 2022-08-09 | 河南安钢集团舞阳矿业有限责任公司 | Anti-leakage method for overflow culvert of tailing pond |
| CN114991701A (en) * | 2022-05-17 | 2022-09-02 | 湖北道泽勘测设计院有限公司 | Method for plugging drilled hole by adopting cement paste and water glass mixed solution |
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|---|---|
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