CN105821818A - Soft rock area surge chamber intersecting tunnel section collapse rapid treatment method - Google Patents
Soft rock area surge chamber intersecting tunnel section collapse rapid treatment method Download PDFInfo
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- CN105821818A CN105821818A CN201610175989.9A CN201610175989A CN105821818A CN 105821818 A CN105821818 A CN 105821818A CN 201610175989 A CN201610175989 A CN 201610175989A CN 105821818 A CN105821818 A CN 105821818A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a soft rock area surge chamber intersecting tunnel section collapse rapid treatment method. The method includes the main measures that a pre-buried steel pipe is arranged and serves as a ballast passing channel; rock ballast (or sand gravel) backfilling is performed on a collapse cavity area; shaft head locking of an intersection tunnel section (an upper chamber, a lower chamber and a diversion tunnel) intersecting with a surge chamber is performed through reinforced concrete annular beams; and grouting treatment and the like of the backfill rock ballast (sand gravel) of the position, outside a surge chamber designed excavation line, of the collapse cavity area are performed. According to the soft rock area surge chamber intersecting tunnel section collapse rapid treatment method, materials such as I-steel and steel plates are used, and the annular shaft head locking beams can maintain the stability of the rock wall of the intersection of the surge chamber; the backfill rock ballast (sand gravel) can serve as a construction platform, and moreover the stability of the rock wall of a collapse cavity is facilitated; and grouting treatment of the rock ballast (sand gravel) is performed on the collapse cavity, the effects are good, the construction cost is low, and the construction period is short.
Description
Technical field
The present invention relates to a kind of Soft Rock Area sump remedy method, especially Soft Rock Area surge-chamber intersection hole section landslide immediate processing method.
Background technology
In distance tunnel formula pressure diversion system, in order to reduce the surge pressure of pressure piping, meet the requirement of unit regulation assurance calculation, on pressure diversion pipeline, often build surge-chamber.Cylindrical surge chamber (i.e. vertical shaft)+upper and lower water-chamber-type, simple in construction, cross dimensions and shape invariance, reflect the respond well of surge wave, be the surge-chamber form being most widely used.But the surge-chamber water-level fluctuation amplitude of this form is relatively big, decay is relatively slow, accordingly, it would be desirable to vertical shaft volume is relatively big, causes diameter and the degree of depth bigger.During shaft excavation, if tunnel chamber crossing situation is complicated, ROCK CONDITIONS is poor, then it is susceptible to wall damage, threatens construction safety, affect construction speed.
Conventional processing mode is generally: (1) carries out consolidation grouting to landslide position, and owing to landslide position often air slaking situation is serious, the grouting time of this processing mode is longer, and the construction period is long, otherwise can not meet execution conditions；It addition, at country rock damaged part, grouting pressure is less, and grouting effect is undesirable, sump remedy is difficult to reach engineering effort；(2) using concrete to block landslide section, which security risk is less, but fill concrete side's amount is big, and cost is high, and the mass concrete backfill required construction time is long, affects construction speed.
Summary of the invention
The technical problem to be solved is to provide surge-chamber intersection hole, a kind of Soft Rock Area section landslide immediate processing method, can meet subsequent construction safety requirements, and construction cost is relatively low.
The technical solution adopted in the present invention is, surge-chamber intersection hole, a kind of Soft Rock Area section landslide immediate processing method, comprises the following steps:
1) at landslide section pilot shaft position embedded steel tube, slag passage is slipped as the most through vertical shaft and surge-chamber；
2) template is erect at design excavation line, reserved grout pipe in template, use rock ballast template both sides be backfilled to distance intersect at the bottom of section hole, hole >=2.0m elevation at, form operation platform, annular I-steel is installed, meanwhile, utilize template that the caving zone rock ballast beyond design excavation line is carried out grouting treatment, form concrete of layinging of markstone；
3) intersecting at the bottom of section hole, hole and surge-chamber infall installation steel reinforced concrete fore shaft beam；
4) continue to erect template at design excavation line, backfill rock ballast in template both sides extremely intersects at the crest level of section hole, hole, intersecting Duan Dong top, hole and surge-chamber infall installation steel reinforced concrete fore shaft beam, simultaneously, utilize template that the caving zone rock ballast beyond design excavation line is carried out grouting treatment, form concrete of layinging of markstone；
5) continue at design excavation line, erect template, gradually to template both sides backfill rock ballast to landslide district crest level, and utilize template that the caving zone rock ballast beyond design excavation line is carried out grouting treatment, form concrete of layinging of markstone；
6) after the concrete setting of layinging of markstone in caving zone, being transported from embedded steel tube by the rock ballast in surge-chamber, sump remedy work is complete.
What described intersection hole section referred to room, lower room or diversion tunnel and surge-chamber intersects hole section.
Annular I-steel is set in the reinforced concrete circular beam of section upper and lower, described intersection hole, to increase rigidity.
Described rock ballast sand gravel replaces.
The invention has the beneficial effects as follows: at water-conveyance tunnel and surge-chamber infall, concrete fore shaft beam at upper and lower two is set, it is ensured that the stability of Soft Rock Area surge-chamber intersection hole segment structure；Utilize backfill rock ballast (sand gravel) as operation platform, i.e. ensure that surrounding rock collapse develops and be easy to construction the most further；Collapse after surge-chamber alveolus to backfill rock ballast (sand gravel) carry out grouting treatment, cost is relatively low, and the duration is shorter, respond well, can be that similar projects is offered reference, have dissemination.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of surge-chamber intersection hole, Soft Rock Area of the present invention section landslide immediate processing method.
In figure:
1 embedded steel tube；
2 annular I-steel；
3 surge-chamber design excavation lines；
4 laying of markstone concrete；
5 intersection hole sections (upper room, lower room or diversion tunnel)；
6 steel reinforced concrete fore shaft beams；
7 anchor poles；
8 landslide cavity sidelines.
Detailed description of the invention
The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings:
As it is shown in figure 1, surge-chamber intersection hole, Soft Rock Area section (upper room, lower room and diversion tunnel) the landslide immediate processing method of the present invention, particularly as follows:
1) at landslide section pilot shaft position embedded steel tube 1, slag passage is slipped as the most through vertical shaft and surge-chamber；
2) template is erect at design excavation line, reserved grout pipe in template, use rock ballast (sand gravel) to be backfilled to distance in template both sides and intersect at the bottom of section hole, hole >=2.0m elevation EL1 place, form operation platform, installation I-shaped steel loop shape steel 2.Meanwhile, utilize template that the caving zone rock ballast (sand gravel) beyond design excavation line 3 is carried out grouting treatment, form concrete 4 of layinging of markstone；
3) intersecting at the bottom of section 5 hole, hole and surge-chamber infall installation steel reinforced concrete fore shaft beam 6；
4) with step 2) identical, to continue designing excavation line setting template, template both sides backfill rock ballast (sand gravel) extremely intersect at the crest level EL3 of section hole, hole, install steel reinforced concrete fore shaft beam 6 at intersection top, section 5 hole, hole and surge-chamber infall.Meanwhile, utilize template that the caving zone rock ballast (sand gravel) beyond design excavation line 3 is carried out grouting treatment, form concrete 4 of layinging of markstone；
5) continue to erect template at design excavation line, gradually to template both sides backfill rock ballast (sand gravel) to landslide district crest level EL4, and utilize template that the caving zone rock ballast (sand gravel) beyond design excavation line 3 is carried out grouting treatment, form concrete 4 of layinging of markstone；
6) after concrete 4 solidification of layinging of markstone in caving zone, being transported from embedded steel tube 1 by the rock ballast (sand gravel) in surge-chamber, sump remedy work is complete.
Embodiment described above is merely to illustrate technological thought and the feature of the present invention, its object is to make those skilled in the art it will be appreciated that present disclosure implementing according to this, the scope of the claims of the present invention only can not be limited with the present embodiment, what the most all disclosed spirit was made changes on an equal basis or modifies, and still falls in the scope of the claims of the present invention.
Claims (4)
1. surge-chamber intersection hole, Soft Rock Area section landslide immediate processing method, it is characterised in that comprise the following steps:
1) in landslide section pilot shaft position embedded steel tube (1), slag passage is slipped as the most through vertical shaft and surge-chamber；
2) template is erect at design excavation line, reserved grout pipe in template, use rock ballast template both sides be backfilled to distance intersect at the bottom of section hole, hole >=2.0m elevation at, form operation platform, annular I-steel (2) is installed, meanwhile, utilize template that the caving zone rock ballast beyond design excavation line (3) is carried out grouting treatment, form concrete (4) of layinging of markstone；
3) intersecting at the bottom of section (5) hole, hole and surge-chamber infall installation steel reinforced concrete fore shaft beam (6)；
4) continue to erect template at design excavation line, backfill rock ballast in template both sides extremely intersects at the crest level of section hole, hole, intersecting section (5) top, hole, hole and surge-chamber infall installation steel reinforced concrete fore shaft beam (6), simultaneously, utilize template that the caving zone rock ballast beyond design excavation line (3) is carried out grouting treatment, form concrete (4) of layinging of markstone；
5) continue at design excavation line, erect template, gradually to template both sides backfill rock ballast to landslide district crest level, and utilize template that the caving zone rock ballast beyond design excavation line (3) is carried out grouting treatment, form concrete (4) of layinging of markstone；
6) after the concrete of layinging of markstone (4) in caving zone solidifies, being transported from embedded steel tube (1) by the rock ballast in surge-chamber, sump remedy work is complete.
Soft Rock Area the most according to claim 1 surge-chamber intersects hole section landslide immediate processing method, it is characterised in that what described intersection hole section referred to room, lower room or diversion tunnel and surge-chamber intersects hole section.
Surge-chamber intersection hole, Soft Rock Area the most according to claim 1 section landslide immediate processing method, it is characterized in that, annular I-steel (2) is set in section upper and lower reinforced concrete circular beam, described intersection hole (6), to increase rigidity.
Surge-chamber intersection hole, Soft Rock Area the most according to claim 1 section landslide immediate processing method, it is characterised in that described rock ballast sand gravel replaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175989.9A CN105821818B (en) | 2016-03-24 | 2016-03-24 | A kind of Soft Rock Area surge-chamber intersects hole section landslide immediate processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610175989.9A CN105821818B (en) | 2016-03-24 | 2016-03-24 | A kind of Soft Rock Area surge-chamber intersects hole section landslide immediate processing method |
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| CN105821818A true CN105821818A (en) | 2016-08-03 |
| CN105821818B CN105821818B (en) | 2017-11-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708743A (en) * | 2018-05-14 | 2018-10-26 | 中水电第十工程局（郑州）有限公司 | A method of using grouting treatment Tunnel Collapse |
| CN111236170A (en) * | 2020-01-09 | 2020-06-05 | 中电建十一局工程有限公司 | Quick construction method for buried rock concrete gravity dam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1548331A1 (en) * | 1988-01-18 | 1990-03-07 | Куйбышевский инженерно-строительный институт им.А.И.Микояна | Surge tank |
| CN101906977A (en) * | 2010-07-21 | 2010-12-08 | 中国矿业大学(北京) | Method for preventing and treating large deformation and collapse of softrock tunnel |
| CN102168564A (en) * | 2011-04-22 | 2011-08-31 | 北京科技大学 | Reconstruction and recovery technology for upright mine and vertical mine shafts after catastrophic collapse |
| CN103321653A (en) * | 2013-06-27 | 2013-09-25 | 中国水电顾问集团成都勘测设计研究院 | Method of treating lining after collapse of underground cavern crown |
| CN204386602U (en) * | 2014-12-16 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Pressure regulating well pit shaft cavity collapse backfill auxiliary structure |
| CN105257301A (en) * | 2015-10-16 | 2016-01-20 | 中铁十局集团济南铁路工程有限公司 | Method for reinforcing collapse of weak surrounding rock of shallow embedded and mining tunnel |
-
2016
- 2016-03-24 CN CN201610175989.9A patent/CN105821818B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1548331A1 (en) * | 1988-01-18 | 1990-03-07 | Куйбышевский инженерно-строительный институт им.А.И.Микояна | Surge tank |
| CN101906977A (en) * | 2010-07-21 | 2010-12-08 | 中国矿业大学(北京) | Method for preventing and treating large deformation and collapse of softrock tunnel |
| CN102168564A (en) * | 2011-04-22 | 2011-08-31 | 北京科技大学 | Reconstruction and recovery technology for upright mine and vertical mine shafts after catastrophic collapse |
| CN103321653A (en) * | 2013-06-27 | 2013-09-25 | 中国水电顾问集团成都勘测设计研究院 | Method of treating lining after collapse of underground cavern crown |
| CN204386602U (en) * | 2014-12-16 | 2015-06-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Pressure regulating well pit shaft cavity collapse backfill auxiliary structure |
| CN105257301A (en) * | 2015-10-16 | 2016-01-20 | 中铁十局集团济南铁路工程有限公司 | Method for reinforcing collapse of weak surrounding rock of shallow embedded and mining tunnel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708743A (en) * | 2018-05-14 | 2018-10-26 | 中水电第十工程局（郑州）有限公司 | A method of using grouting treatment Tunnel Collapse |
| CN108708743B (en) * | 2018-05-14 | 2019-12-17 | 中电建十一局工程有限公司 | Method for treating tunnel collapse by grouting |
| CN111236170A (en) * | 2020-01-09 | 2020-06-05 | 中电建十一局工程有限公司 | Quick construction method for buried rock concrete gravity dam |
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| Publication number | Publication date |
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| CN105821818B (en) | 2017-11-17 |
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