CN109779657A - Draining construction method for grouting reinforcement is driven in a kind of high-pressure water-enriched goaf group hole - Google Patents
Draining construction method for grouting reinforcement is driven in a kind of high-pressure water-enriched goaf group hole Download PDFInfo
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- CN109779657A CN109779657A CN201910015448.3A CN201910015448A CN109779657A CN 109779657 A CN109779657 A CN 109779657A CN 201910015448 A CN201910015448 A CN 201910015448A CN 109779657 A CN109779657 A CN 109779657A
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- grouting pipe
- grouting
- draining
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Abstract
The construction method of draining grouting and reinforcing is driven in a kind of high-pressure water-enriched goaf group hole, so that injection slurry is smoothly pressed into goaf and deposits to the bottom in goaf, and very fast formation slip casting solidifying body, and increases substantially the grouting and reinforcing construction efficiency in high-pressure water-enriched goaf.Carry out as follows: longitudinally, laterally interval drilling forms drilling group, and squeezes into orifice tube at the top of each drilling；Follow up Grouting Pipe in time in the borehole, using position drilling placed in the middle as mortar depositing construction hole, using the adjacent drilling in mortar depositing construction hole as drainage hole；By the Grouting Pipe slip casting in mortar depositing construction hole, draining and pressure release are driven by the Grouting Pipe in drainage hole；When there are slurries in the draining of the Grouting Pipe in drainage hole, its water outlet is closed, the Grouting Pipe in mortar depositing construction hole stops slip casting and closes the hole；To have closed the drilling of mortar depositing construction hole side as new mortar depositing construction hole, adjacent drilling is drainage hole；By the Grouting Pipe slip casting in mortar depositing construction hole, draining and pressure release are driven by the Grouting Pipe in drainage hole；When there are slurries in the draining of the Grouting Pipe in drainage hole, its water outlet is closed, the Grouting Pipe in mortar depositing construction hole stops slip casting and closes the hole；Above step is repeated until completing grouting and reinforcing construction.
Description
Technical field
The present invention relates to goaf reinforcing, in particular to buried multi-layer high-voltage rich water goaf grouting strengthening construction.
Background technique
Goaf largely exists in China, when route can not pass round and pass through with roadbed, uses slip casting under normal conditions
Reinforcing handles goaf.When goaf buried depth is larger, there are underground water especially artesian water when, goaf will shape
At high-pressure water-enriched connected region.Due to the presence of high artesian, there are following technical problems: (1) Gao Shui for traditional grouting and reinforcing construction
It needs to increase grouting pressure under pressure effect, so as to cause mortar depositing construction difficulty and inefficiency；(2) slurries injected are in high hydraulic pressure
Goaf in solidification slowly and be difficult to form continuous grouting and reinforcing body；(3) high pressure mortar depositing construction security risk is big, slurries
Easy ground pollution environment of emerging.Iing is proposed that a kind of construction method for grouting reinforcement suitable for high-pressure water-enriched goaf has as a result, must
The property wanted, and should have the characteristics that construction safety, easy to operate, construction efficiency is high, it is environmentally friendly and be conducive to promote.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of high-pressure water-enriched goaf group holes to drive draining grouting and reinforcing
Construction method so that injection slurry is smoothly pressed into goaf and deposits to the bottom in goaf, and it is very fast form slip casting solidifying body,
And increase substantially the grouting and reinforcing construction efficiency in high-pressure water-enriched goaf.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
A kind of high-pressure water-enriched goaf group hole of the invention drive draining grouting and reinforcing construction method, as follows into
Row:
1. longitudinally, laterally interval drilling forms drilling group on high-pressure water-enriched goaf ground, and beats at the top of each drilling
Man-hole opening pipe；
2. follow up Grouting Pipe in time in the borehole, using position drilling placed in the middle as mortar depositing construction hole, with mortar depositing construction hole phase
Adjacent drilling is drainage hole, and the Grouting Pipe in mortar depositing construction hole is transferred to the high-pressure water-enriched above 0.5m in goaf bottom, drainage hole
Interior Grouting Pipe is transferred to goaf；
3. driving draining and pressure release by the Grouting Pipe in drainage hole by the Grouting Pipe slip casting in mortar depositing construction hole；
4. closing its water outlet, the note in mortar depositing construction hole when there are slurries in the draining of the Grouting Pipe in drainage hole
Slurry pipe stops slip casting and closes the hole；
5. 2. determining draining hole location according to step to have closed the drilling of mortar depositing construction hole side as new mortar depositing construction hole
It sets, and the Grouting Pipe in new mortar depositing construction hole is transferred to the high-pressure water-enriched above 0.5m in goaf bottom；
6. driving draining by the Grouting Pipe in drainage hole 3. according to step, by the Grouting Pipe slip casting in mortar depositing construction hole
And pressure release；
7. closing its water outlet, the note in mortar depositing construction hole when there are slurries in the draining of the Grouting Pipe in drainage hole
Slurry pipe stops slip casting and closes the hole；
8. repeat step 5. to step 7., until complete grouting and reinforcing construction.
The invention has the advantages that longitudinally, laterally interval drilling forms drilling group on high-pressure water-enriched goaf ground,
Follow-up Grouting Pipe, position drilling placed in the middle are that mortar depositing construction hole carries out slip casting in time in the borehole, are drilled with adjacent as drainage hole
Drive draining and pressure release, into goaf injection slurry by lower effect of water pressure, be easy indentation goaf and simultaneously deposit extremely
The bottom in goaf, it is faster to form slip casting solidifying body；Grouting Pipe slip casting and drive draining alternately, Grouting Pipe slip casting is simultaneously simultaneous
The effect of drainpipe, can increase substantially the grouting and reinforcing construction efficiency in high-pressure water-enriched goaf, and have it is easy for construction,
Good economy performance, environmental protection and be conducive to promote the features such as.
Detailed description of the invention
This specification includes following two width attached drawing:
Fig. 1 is the slip casting that draining construction method for grouting reinforcement is driven in a kind of high-pressure water-enriched goaf group hole of invention
With drive drainage principle figure.
Fig. 2 is that a kind of high-pressure water-enriched goaf group hole of the present invention is driven point sequence construction of draining construction method for grouting reinforcement and shown
It is intended to.
Component name and corresponding label be shown in figure: orifice tube 2, Grouting Pipe 3, mortar depositing construction hole 11, drainage hole 12,
High-pressure water-enriched goaf A.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples:
Referring to Figures 1 and 2, the construction method of draining grouting and reinforcing is driven in a kind of high-pressure water-enriched goaf group hole of the present invention,
It carries out as follows:
1. longitudinally, laterally interval drilling forms drilling group on high-pressure water-enriched goaf ground, and beats at the top of each drilling
Man-hole opening pipe 2；
2. follow up Grouting Pipe 3 in time in the borehole, using position drilling placed in the middle as mortar depositing construction hole 11, with mortar depositing construction hole
11 adjacent drillings are drainage hole 12, more than the decentralization to the bottom high-pressure water-enriched goaf A of Grouting Pipe 3 in mortar depositing construction hole 11
0.5m, at the top of the decentralization to goaf A of Grouting Pipe 3 in drainage hole 12；
3. driving draining and release by the Grouting Pipe 3 in drainage hole 12 by 3 slip casting of Grouting Pipe in mortar depositing construction hole 11
Hydraulic pressure；
4. its water outlet is closed when there are slurries in the draining of the Grouting Pipe 3 in drainage hole 12, in mortar depositing construction hole 11
Grouting Pipe 3 stop slip casting and closing the hole；
5. 2. determining and draining according to step to have closed the drilling of 11 side of mortar depositing construction hole as new mortar depositing construction hole 11
12 position of hole, and the Grouting Pipe 3 in new mortar depositing construction hole 11 is transferred to the above 0.5m in the bottom high-pressure water-enriched goaf A；
6. 3. according to step, being driven by 3 slip casting of Grouting Pipe in mortar depositing construction hole 11 by the Grouting Pipe 3 in drainage hole 12
Catch up with draining and pressure release；
7. its water outlet is closed when there are slurries in the draining of the Grouting Pipe 3 in drainage hole 12, in mortar depositing construction hole 11
Grouting Pipe 3 stop slip casting and closing the hole；
8. repeat step 5. to step 7., until complete grouting and reinforcing construction.
The spacing of the drilling is 5-10m, and orifice tube 2 is using the seamless steel pipe of φ 130, and setting depth is not less than 2m.
The step 3. in, grouting pressure be 5~10Mpa.The compressive resistance of Grouting Pipe 3 is not less than 10MPa.
Longitudinally, laterally interval drilling forms drilling group to the present invention on high-pressure water-enriched goaf ground, in the borehole in time
Follow up Grouting Pipe 3, and position drilling placed in the middle is that mortar depositing construction hole 11 carries out grouting and reinforcing, is that drainage hole 12 is driven with adjacent drilling
Draining and pressure release, into goaf injection slurry by lower effect of water pressure, be easy indentation goaf and simultaneously deposit to mined out
The bottom in area, it is faster to form slip casting solidifying body.3 slip casting of Grouting Pipe and drive draining alternately, 3 slip casting of Grouting Pipe and and row
The effect of water pipe can increase substantially the grouting and reinforcing construction efficiency in high-pressure water-enriched goaf
Embodiment and grouting and reinforcing expense comparative analysis:
By 10000m2Goaf reinforces area, and injected hole is arranged by 5m pitch square, and drill about 440 hole of total quantity, than
More traditional construction method for grouting reinforcement and construction method for grouting reinforcement of the present invention, labour cost is based on 500 yuan/day.
Scheme one: traditional construction method for grouting reinforcement (construction 2 holes/platform slip casting machine daily)
1. high-pressure grout injector rental charge (pressure 20-30MPa): 2 × 110 days × 1000 yuan/day=220000 yuan
2. high-power generator (500kW): 2 × 110 days × 500 yuan/day=110000 yuan
3. labour cost: 4 people × 110 day × 500 yuan/day=220000 yuan
Total operating expenses: 550000 yuan
Scheme two: construction method for grouting reinforcement (construction 4 holes/platform slip casting machine daily) of the present invention
1. high-pressure grout injector rental charge (pressure 5-10MPa): 1 × 110 days × 600 yuan/day=66000 yuan
2. general generator (250kW): 1 × 110 days × 400 yuan/day=44000 yuan
3. labour cost: 2 people × 110 day × 500 yuan/day=110000 yuan
Total operating expenses: 220000 yuan
It can be seen that using a kind of high-pressure water-enriched goaf group hole of the present invention drive the construction method of draining grouting and reinforcing compared with
Traditional construction method for grouting reinforcement saves operating expenses 60%, and economic benefit is very significant.
It drives draining grouting and reinforcing and applies in the present invention a kind of high-pressure water-enriched goaf group hole described above that only explains through diagrams
The some principles and operating procedure of work method are not intended to the present invention being confined to shown and the specific structure and step model
In enclosing, therefore all corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (3)
1. the construction method of draining grouting and reinforcing is driven in a kind of high-pressure water-enriched goaf group hole, carry out as follows:
1. longitudinally, laterally interval drilling forms drilling group on high-pressure water-enriched goaf ground, and squeezes into hole at the top of each drilling
Mouth pipe (2)；
2. follow-up Grouting Pipe (3) in time in the borehole, using position drilling placed in the middle as mortar depositing construction hole (11), with mortar depositing construction hole
(11) adjacent drilling is drainage hole (12), Grouting Pipe (3) decentralization in mortar depositing construction hole (11) to high-pressure water-enriched goaf (A)
The above 0.5m in bottom, at the top of Grouting Pipe (3) decentralization to goaf (A) in drainage hole (12)；
3. by Grouting Pipe (3) slip casting in mortar depositing construction hole (11), by the Grouting Pipe (3) in drainage hole (12) drive draining and
Pressure release；
4. closing its water outlet, mortar depositing construction hole (11) when there are slurries in the draining of the Grouting Pipe (3) in drainage hole (12)
Interior Grouting Pipe (3) stops slip casting and closes the hole；
5. 2. determining and draining according to step to have closed the drilling of mortar depositing construction hole (11) side as new mortar depositing construction hole (11)
Hole (12) position, and will be more than Grouting Pipe (3) decentralization to the bottom high-pressure water-enriched goaf (A) in new mortar depositing construction hole (11)
0.5m；
6. 3. according to step, by Grouting Pipe (3) slip casting in mortar depositing construction hole (11), by the Grouting Pipe in drainage hole (12)
(3) draining and pressure release are driven；
7. closing its water outlet, mortar depositing construction hole (11) when there are slurries in the draining of the Grouting Pipe (3) in drainage hole (12)
Interior Grouting Pipe (3) stops slip casting and closes the hole；
8. repeat step 5. to step 7., until complete grouting and reinforcing construction.
2. the construction method of draining grouting and reinforcing is driven in a kind of high-pressure water-enriched goaf group hole as described in claim 1, special
Sign is: the spacing of the drilling is 5-10m, and orifice tube (2) uses the seamless steel pipe of φ 130, and setting depth is not less than 2m.
3. the construction method of draining grouting and reinforcing is driven in a kind of high-pressure water-enriched goaf group hole as described in claim 1, special
Sign is: the step 3. in, grouting pressure is 5~10MPa, and the compressive resistance of Grouting Pipe (3) is not less than 10MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015448.3A CN109779657B (en) | 2019-01-08 | 2019-01-08 | High-pressure water-rich goaf group hole driving, draining, grouting and reinforcing construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015448.3A CN109779657B (en) | 2019-01-08 | 2019-01-08 | High-pressure water-rich goaf group hole driving, draining, grouting and reinforcing construction method |
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| Publication Number | Publication Date |
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| CN109779657A true CN109779657A (en) | 2019-05-21 |
| CN109779657B CN109779657B (en) | 2021-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566271A (en) * | 2019-08-02 | 2019-12-13 | 上海远通路桥工程有限公司 | Reinforcement construction method for water-rich goaf under municipal road |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03217597A (en) * | 1990-01-23 | 1991-09-25 | Ohbayashi Corp | Back-filling injection method in shield tunelling method |
| JPH0868293A (en) * | 1994-08-29 | 1996-03-12 | Kawasaki Heavy Ind Ltd | Underground tunnel joint method and segment |
| CN1202569A (en) * | 1997-06-16 | 1998-12-23 | 陈隆金 | High concentrate paste-filling technology and equipment in mine |
| CN106149677A (en) * | 2015-04-16 | 2016-11-23 | 中铁二院工程集团有限责任公司 | High-pressure water-enriched goaf grouting reinforcement means |
| CN206815356U (en) * | 2017-04-28 | 2017-12-29 | 北京市勘察设计研究院有限公司 | Water control system is synthetically descended in multi-aquifer area drainage pressure-reducing, ejection for water plugging |
-
2019
- 2019-01-08 CN CN201910015448.3A patent/CN109779657B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03217597A (en) * | 1990-01-23 | 1991-09-25 | Ohbayashi Corp | Back-filling injection method in shield tunelling method |
| JPH0868293A (en) * | 1994-08-29 | 1996-03-12 | Kawasaki Heavy Ind Ltd | Underground tunnel joint method and segment |
| CN1202569A (en) * | 1997-06-16 | 1998-12-23 | 陈隆金 | High concentrate paste-filling technology and equipment in mine |
| CN106149677A (en) * | 2015-04-16 | 2016-11-23 | 中铁二院工程集团有限责任公司 | High-pressure water-enriched goaf grouting reinforcement means |
| CN206815356U (en) * | 2017-04-28 | 2017-12-29 | 北京市勘察设计研究院有限公司 | Water control system is synthetically descended in multi-aquifer area drainage pressure-reducing, ejection for water plugging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566271A (en) * | 2019-08-02 | 2019-12-13 | 上海远通路桥工程有限公司 | Reinforcement construction method for water-rich goaf under municipal road |
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| CN109779657B (en) | 2021-07-27 |
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