CN107165168A - Full closure underground chamber backfill, consolidation grouting pipeline layout - Google Patents
Full closure underground chamber backfill, consolidation grouting pipeline layout Download PDFInfo
- Publication number
- CN107165168A CN107165168A CN201710569206.XA CN201710569206A CN107165168A CN 107165168 A CN107165168 A CN 107165168A CN 201710569206 A CN201710569206 A CN 201710569206A CN 107165168 A CN107165168 A CN 107165168A
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- Prior art keywords
- underground chamber
- grouting
- full closure
- pipe
- consolidation grouting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007596 consolidation process Methods 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 39
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 24
- 239000004567 concrete Substances 0.000 claims abstract description 19
- 239000011435 rock Substances 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000011440 grout Substances 0.000 claims description 28
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 239000002689 soil Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to a kind of full closure underground chamber backfill, consolidation grouting pipeline layout.It is an object of the invention to provide a kind of full closure underground chamber backfill simple in construction, easy construction, consolidation grouting pipeline layout, to improve integrality, the compactness of fill concrete of underground chamber peripheral rock.The technical scheme is that：A kind of full closure underground chamber backfill, consolidation grouting pipeline layout, backfill, consolidation grouting applied to full closure underground chamber, it is characterised in that：The full closure underground chamber has the cavern of stalk dome-shaped, the phase reinforced concrete lining layer poured in cavern, fill concrete formation second stage concrete plugging block in the Second Construction tunnel of stalk dome-shaped, Second Construction tunnel is formed in one phase reinforced concrete lining layer.The present invention is applied to underground engineering grouting technique field.
Description
Technical field
The present invention relates to a kind of full closure underground chamber backfill, consolidation grouting pipeline layout.Suitable for underground engineering
Grouting technique field.
Background technology
Grouting is a kind of slurries to be sent to joint fissure, fault belt or the building of structure foundation connecing in itself
Engineering measure in seam, crack, so as to improve the impermeability and globality for being filled stratum or building, improves foundation condition.
In order to which the physical and mechanical property of rock for improving developmental joint fissure or having crushed zone can be carried out to subterranean body in underground engineering
Consolidation grouting improves the globality of rock mass, compression strength, modulus of elasticity and the deformation and the differential settlement that reduce rock mass；And
On the concrete-lined back side or the periphery of fill concrete, to wherein failing to pour position progress that is closely knit and there is space
Grouting be referred to as rockfill grouting so that first and second concrete is combined into entirety, while play soil mass consolidation, backfill space,
External force is resisted jointly, prevents the effect of seepage.Grouting works needs complicated grouting pipeline to use cooperatively, for example by set into
Pipe, return pipe, steam vent are starched, and coordinates the measures such as other strengthening motorings of control to ensure grouting works quality.
But in underground engineering, often face excavation and the supporting of underground chamber, the underground especially in large-scale hydroelectric project
Cavern is numerous, locus is complicated, cavern's functional form is various, such as geology exploratory heading for geological mapping, for large-scale layer
Between the anti-skidding shearing resistance of disturbed belt set displacement hole, for what large-scale inter-laminar dislocation band impervious leakage-stopping was set section ooze hole and in order to face
When construction and temporary construction branch hole etc. for setting, be required for blocking cavern's tunneling boring in the later stage of engineering, and current, still
There is not a set of rockfill grouting, grouting pipeline method for arranging of consolidation grouting for being directed to and blocking cavern in underground engineering entirely, this is very big
Ground constrains underground engineering grouting construction operation, can not more ensure the integrality of underground chamber peripheral rock, fill concrete
Compactness.
The content of the invention
The technical problem to be solved in the present invention is：For above-mentioned problem, there is provided a kind of simple in construction, easy construction
Full closure underground chamber backfill, consolidation grouting pipeline layout, with improve underground chamber peripheral rock integrality, backfill
The compactness of concrete.
The technical solution adopted in the present invention is：A kind of full closure underground chamber backfill, consolidation grouting pipeline layout,
Backfill, consolidation grouting applied to full closure underground chamber, it is characterised in that：The full closure underground chamber has stalk circular arch
Stalk dome-shaped is formed in the phase reinforced concrete lining layer poured in the cavern of shape, cavern, a phase reinforced concrete lining layer
Second Construction tunnel, fill concrete formation second stage concrete plugging block in Second Construction tunnel；
Be embedded with the one phase reinforced concrete lining layer it is some from Second Construction tunnel run through a phase reinforced concrete lining
Build the grout pipe for going deep into cavern's surrounding rock body；Use is preset with a phase reinforced concrete lining layer at the top of the Second Construction tunnel
In the second stage of rockfill grouting device to carrying out rockfill grouting between a phase reinforced concrete lining layer and second stage concrete plugging block.
The second stage of rockfill grouting device include being arranged at grouting pipeline at the top of Second Construction tunnel at the spandrel of both sides and
It is arranged at the exhaust gear of most elevation at the top of Second Construction tunnel.
The grouting pipeline has is arranged at intervals with some grouting on the feed pipe for mortar arranged along Second Construction tunnel, feed pipe for mortar
Some slurry outlets are drilled with feed pipe for mortar in the range of box, grout box, the grout box is used can be poured under certain pressure
The rubber sleeve opened of slurries top as protection materials.
The exhaust gear, which has, is opened in some rows on a phase reinforced concrete lining layer inner surface along Second Construction tunnel
The venthole of hole axis arrangement, venthole is built-in with exhaust branch pipe, and exhaust branch pipe connection is arranged along Second Construction canal axes arranges
Gas is responsible for.
Wrapped up using brown paper in the exhaust branch pipe aperture.
Some grouting sections are evenly arranged along the underground chamber axis, along underground chamber ring on each grouting section
It has been evenly arranged some grout pipes.
Grout pipe at the top of the underground chamber is crown rockfill grouting pipe and surrounding rock body consolidation grouting pipe, remaining
It is surrounding rock body consolidation grouting pipe for grout pipe.
It is 36 ° to be disposed with angle between 10 grout pipes, adjacent grout pipe on each grouting section.
The beneficial effects of the invention are as follows：The present invention by along underground chamber axis on the circumferentially disposed top of section of certain intervals
Rock consolidation grouting pipe around work rockfill grouting pipe, hole, optimization pipeline arrangement, saves operating space, by phase lining cutting coagulation
Rock is in the milk around the crown of soil and hole, can improve globality, compression strength, modulus of elasticity and the reduction rock mass of rock mass
Deformation and differential settlement.
The present invention solves the second stage of rockfill grouting and applied by filling out grouting pipeline and exhaust gear along cavern's axis direction arrangement
Slurries turnover and the problems such as the indoor gas pump drainage of hole in work, makes one, second stage concrete be combined into entirety, while playing compacted soil
Body, backfill space, resist jointly external force, prevent seepage etc. act on.
The method for arranging of grout pipe, grouting pipeline and exhaust gear is simple in the present invention, and underground chamber is in the milk
Implementation result is good, it is possible to increase the compactness of the second stage of fill concrete, improves cavern's backfill quality, is applied while greatly optimizing
Work tissue is arranged and working procedure, can be reduced investment outlay again while underground chamber backfill quality is improved.
Brief description of the drawings
Fig. 1 arranges profile for the pipeline of embodiment.
Fig. 2 is the pipeline plane of arrangement figure of embodiment.
Fig. 3 is exhaust gear section layout drawing in embodiment.
Fig. 4 is grout box schematic diagram in embodiment.
Embodiment
As shown in Figure 1 and Figure 2, the present embodiment blocks underground chamber backfill, consolidation grouting pipeline layout entirely to be a kind of,
Wherein full closure underground chamber 1 has the phase reinforced concrete lining layer 2 poured in the cavern of stalk dome-shaped, cavern, one
Fill concrete in the Second Construction tunnel 7 of stalk dome-shaped, Second Construction tunnel 7 is formed in phase reinforced concrete lining layer to be formed
Second stage concrete plugging block 3.
Phase grouting section is arranged at a certain distance along the axis of underground chamber 1 in the present embodiment, in each grouting section
It is 36 ° to be evenly arranged angle between totally ten grout pipes, each adjacent grout pipe along the ring of underground chamber 1, and grout pipe is embedded in advance
In one phase reinforced concrete lining layer 2, cavern's surrounding rock body is goed deep into from Second Construction tunnel 7 through a phase reinforced concrete lining layer 2
15cm.Wherein 3 grout pipes at the top of underground chamber 1 are the crown rockfill grouting pipe 5 of a phase reinforced concrete lining layer 2 and hole week
Country rock consolidation grouting pipe 4, remaining 7 are rock consolidation grouting pipe 4 around hole.
The one phase reinforced concrete lining layer 2 at the top of Second Construction tunnel 7 is provided with the second stage of rockfill grouting device, second phase backfill
Provisions for grouting is used to carry out backfill filling to leakiness part between a phase reinforced concrete lining layer 2 and second stage concrete plugging block 3
Slurry.The second stage of rockfill grouting device includes being arranged at the grouting pipeline at the top both sides spandrel of Second Construction tunnel 7 in the present embodiment
With the exhaust gear for being arranged at the top of Second Construction tunnel 7 most elevation.
Wherein grouting pipeline has the feed pipe for mortar 6 arranged along the axis of Second Construction tunnel 7, and feed pipe for mortar is by straight steel pipe (internal diameter
For the perforation straight steel pipe that φ 25.4, external diameter are φ 33.5) screw thread torn by car formed using mechanical connection, on feed pipe for mortar 6 every
3m sets a grout box 10, and grout box length is 16cm, and going out for some φ 6 is drilled with the feed pipe for mortar in the range of grout box
Starch hole (see Fig. 4).Grout box 10 can be filled using rubber sleeve as protection materials, and satisfaction rubber sleeve under 0.2MPa pressure
Open on the slurries top of note.
After feed pipe for mortar 6 is pre-buried, mouth of pipe protection is carried out to feed pipe for mortar, pipeline blockage is prevented, at grouting pipeline pulp-inlet pipe end
Portion goes out and starched pipe afterbody and sets control valve.
As shown in figure 3, exhaust gear is arranged along the axis of Second Construction tunnel 7 including two rows, is drilled with one in the present embodiment
The venthole 14 at the top of phase reinforced concrete lining layer 2, and the gas exhaust piping being correspondingly arranged with every discharge stomata, wherein venthole
Down, venthole specification is φ 60, long 10cm, adjacent venthole interval 6m in often arranging in aperture；Gas exhaust piping includes exhaust branch pipe 8
With exhaust supervisor 9, exhaust branch pipe 8 is corresponded with venthole 14 and sets and be placed in venthole, and exhaust branch pipe 8 was connected along the second phase
The exhaust supervisor 9 for the axis of tunnel 7 arrangement of constructing, gas exhaust piping aperture is protected with brown paper colligation.Gas exhaust piping is by straight in this example
Steel pipe, elbow bend steel pipe, the trouble elbow steel pipe of right angle three are formed by connecting, and straight steel pipe internal diameter is that φ 25.4, external diameter are φ 33.5, directly
Steel pipe connects to form exhaust supervisor 9 by the trouble elbow steel pipe of right angle three along Second Construction canal axes, and straight steel pipe passes through right angle three
Trouble elbow steel pipe or elbow bend steel pipe are vertically connected on exhaust supervisor 9 and form exhaust branch pipe 8.
A phase grout pipe and the second stage of rockfill grouting device are mixed according to a phase reinforced concrete lining layer 2 and second phase in the present embodiment
The solidifying construction progress situation of grave sprue 3, is constructed, the second stage of rockfill grouting device needs skirt every 30m as a standard paragraphs
Grouting operation is carried out outside to backfill section, after a standard paragraphs construction terminates and carries out grouting quality passed examination, can be carried out
One phase grout pipe of next standard paragraphs, the arrangement of the second stage of rockfill grouting device and grouting construction.
Claims (8)
1. a kind of full closure underground chamber backfill, consolidation grouting pipeline layout, applied to returning for full closure underground chamber (1)
Fill out, consolidation grouting, it is characterised in that：The full closure underground chamber (1), which has in the cavern of stalk dome-shaped, cavern, have been poured
A phase reinforced concrete lining layer (2), the Second Construction tunnel (7) of stalk dome-shaped is formed in a phase reinforced concrete lining layer,
Fill concrete formation second stage concrete plugging block (3) in Second Construction tunnel；
It is embedded with the one phase reinforced concrete lining layer (2) and some runs through a phase armored concrete from Second Construction tunnel (7)
The grout pipe of cavern's surrounding rock body is goed deep into lining cutting；It is pre- on a phase reinforced concrete lining layer at the top of the Second Construction tunnel (7)
Provided with for being returned to the second phase that rockfill grouting is carried out between a phase reinforced concrete lining layer (2) and second stage concrete plugging block (3)
Fill out provisions for grouting.
2. full closure underground chamber backfill according to claim 1, consolidation grouting pipeline layout, it is characterised in that：
The second stage of rockfill grouting device includes the grouting pipeline being arranged at the top of Second Construction tunnel (7) at the spandrel of both sides and is arranged at
The exhaust gear of most elevation at the top of Second Construction tunnel (7).
3. full closure underground chamber backfill according to claim 2, consolidation grouting pipeline layout, it is characterised in that：
The grouting pipeline has is arranged at intervals with some grout boxs on the feed pipe for mortar (6) arranged along Second Construction tunnel, feed pipe for mortar
(10) some slurry outlets, are drilled with the feed pipe for mortar in the range of grout box, grouting (10) box is used can under certain pressure
The rubber sleeve that the slurries top being poured is opened is as protection materials.
4. full closure underground chamber backfill according to claim 2, consolidation grouting pipeline layout, it is characterised in that：
The exhaust gear, which has, is opened in some rows on phase reinforced concrete lining layer (2) inner surface along Second Construction tunnel (7)
The venthole (14) of axis arrangement, venthole is built-in with exhaust branch pipe (8), and exhaust branch pipe is connected along Second Construction canal axes cloth
Put exhaust supervisor (9).
5. full closure underground chamber backfill according to claim 4, consolidation grouting pipeline layout, it is characterised in that：
Wrapped up using brown paper in exhaust branch pipe (8) aperture.
6. full closure underground chamber backfill according to claim 1, consolidation grouting pipeline layout, it is characterised in that：
Some grouting sections have been evenly arranged along the underground chamber (1) axis, it is uniform along underground chamber ring on each grouting section
It is disposed with some grout pipes.
7. full closure underground chamber backfill according to claim 6, consolidation grouting pipeline layout, it is characterised in that：
Grout pipe at the top of the underground chamber (1) is the simultaneous surrounding rock body consolidation grouting pipe (4) of crown rockfill grouting pipe (5), its
Remaining is that grout pipe is surrounding rock body consolidation grouting pipe (4).
8. the full closure underground chamber backfill according to claim 6 or 7, consolidation grouting pipeline layout, its feature exist
In：It is 36 ° to be disposed with angle between 10 grout pipes, adjacent grout pipe on each grouting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569206.XA CN107165168A (en) | 2017-07-13 | 2017-07-13 | Full closure underground chamber backfill, consolidation grouting pipeline layout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710569206.XA CN107165168A (en) | 2017-07-13 | 2017-07-13 | Full closure underground chamber backfill, consolidation grouting pipeline layout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107165168A true CN107165168A (en) | 2017-09-15 |
Family
ID=59824052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710569206.XA Pending CN107165168A (en) | 2017-07-13 | 2017-07-13 | Full closure underground chamber backfill, consolidation grouting pipeline layout |
Country Status (1)
| Country | Link |
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| CN (1) | CN107165168A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035736A (en) * | 2017-12-05 | 2018-05-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for rapidly solving tunnel collapse |
| CN110241825A (en) * | 2019-07-05 | 2019-09-17 | 长江勘测规划设计研究有限责任公司 | A kind of reservoir liner pipe rockfill grouting construction method and structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202970720U (en) * | 2012-12-13 | 2013-06-05 | 中国水电顾问集团成都勘测设计研究院 | Construction structure for reinforcing deep weak structural surface of large rock slope |
| CN103953366A (en) * | 2014-05-20 | 2014-07-30 | 长安大学 | Middle separation wall top original lining cavity backfilling construction method when single-hole tunnel is changed into multiple arches |
| CN204386617U (en) * | 2014-12-30 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Consolidation grouting structure of low waterhead diversion tunnel |
| CN207176686U (en) * | 2017-07-13 | 2018-04-03 | 中国电建集团华东勘测设计研究院有限公司 | Full closure underground chamber backfill, consolidation grouting pipeline arranging structure |
-
2017
- 2017-07-13 CN CN201710569206.XA patent/CN107165168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202970720U (en) * | 2012-12-13 | 2013-06-05 | 中国水电顾问集团成都勘测设计研究院 | Construction structure for reinforcing deep weak structural surface of large rock slope |
| CN103953366A (en) * | 2014-05-20 | 2014-07-30 | 长安大学 | Middle separation wall top original lining cavity backfilling construction method when single-hole tunnel is changed into multiple arches |
| CN204386617U (en) * | 2014-12-30 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Consolidation grouting structure of low waterhead diversion tunnel |
| CN207176686U (en) * | 2017-07-13 | 2018-04-03 | 中国电建集团华东勘测设计研究院有限公司 | Full closure underground chamber backfill, consolidation grouting pipeline arranging structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035736A (en) * | 2017-12-05 | 2018-05-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and structure for rapidly solving tunnel collapse |
| CN110241825A (en) * | 2019-07-05 | 2019-09-17 | 长江勘测规划设计研究有限责任公司 | A kind of reservoir liner pipe rockfill grouting construction method and structure |
| CN110241825B (en) * | 2019-07-05 | 2024-04-12 | 长江勘测规划设计研究有限责任公司 | Backfill grouting construction method and structure for reservoir lining pipeline |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
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