CN205330731U - Sluicing, precipitation, depressurization system are synthesized to tunnel - Google Patents
Sluicing, precipitation, depressurization system are synthesized to tunnel Download PDFInfo
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- CN205330731U CN205330731U CN201620038554.5U CN201620038554U CN205330731U CN 205330731 U CN205330731 U CN 205330731U CN 201620038554 U CN201620038554 U CN 201620038554U CN 205330731 U CN205330731 U CN 205330731U
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Abstract
Sluicing, precipitation, depressurization system are synthesized to tunnel relates to a tertiary system sand mud stone tunnel and gushes sluicing in the swelling mud section hole, earth's surface precipitation, synthesizes depressurization system. Work as tunnel easy appearance in the construction of tertiary system sand mud stone at present for the solution to be out of shape, to cave in, gush the problem design of risks such as shuitu mud even. It includes that the earth's surface is to positive hole, on the earth's surface to a positive hole left side, one row of earth's surface precipitation well is respectively established to right side both sides, every row of earth's surface precipitation well all includes tandem arrangement's a plurality of earth's surface precipitation well, establish flat pilot tunnel near the earth's surface is to positive hole, the outlet is located to establish in the top to the earth's surface to positive hole to one side by flat pilot tunnel, the earth's surface all is equipped with tunnel basement precipitation well to the peaceful pilot tunnel basement of positive hole basement, if the earth's surface is to positive hole vault slant front upper place arterial highway slant outlet, the vertical outlet in positive hole is established to the vault top in positive hole in the earth's surface, the vertical outlet of flat pilot tunnel is established to flat pilot tunnel vault top. The advantage has been avoided the landslide, has been warp, has been gushed geological disasters such as swelling mud, can guarantee tunnel construction safety.
Description
Technical field:
It is that sand shale Tunnel Gushing gushes sluicing in mud section hole, ground precipitation, comprehensive depressurized system that this utility model relates to a kind of 3rd。
Background technology:
Along with China is extensive, modernization, high-level urban road and Communication and Transportation Engineering construction, quantity and the construction scale of Tunnel Engineering constantly expand, and the geological conditions passed through also becomes increasingly complex, and the 3rd is sand shale is exactly the geology country rock of a kind of complexity。3rd is the feature of sand shale: be mainly composed of clay mineral, containing a small amount of aleuritic texture, wherein flour sand content be 25% 50%, clay content be 75% 50%, meet water easily soften, erosion；Self is poor, broken, expand, intensity is low；Developmental joint fissure etc.。It is build tunnel in sand-mudstone formation to there is certain technical barrier that These characteristics causes the 3rd, wherein tunnel is enriched with aqua region sluicing blood pressure lowering construction especially pronounced, so being how sand shale tunneling is implemented sluicing blood pressure lowering scheme become very important the 3rd。
When tunnel the 3rd be sand shale construction in, sand shale is easily by water softening, erosion, and the saturated comprcssive strength of rock low (ultimate soft rock), dehydration disintegrate easy to crack, meet water softening and expand, intensity dramatic drop-off, developmental joint fissure, country rock weak broken, poor stability, deformation, landslide very easily there is under subsoil water developmental state, even the prominent mud equivalent risk of retention of excessive fluid。
Tunnel generation retention of excessive fluid gushes mud and may result in following disaster:
(1) engineering project disaster and casualties are caused。3rd is that sand shale area has rich water, rich silt particle feature, when there is water bursting in construction process in tunnel, often with gushing mud, gushing sand, thus flood tunnel, destroy by rush of water facility, gently then interrupts construction, heavy then cause that tunnel is discarded to change the address, great casualties can be caused what is more, as should the tunnel such as ten thousand line railway Cervus elaphus linnaeuss is flat leads construction water body pressure break arch, overlying molten chamber country rock, there is water bursting disaster, maximal water*.inrush quality, up to 30 × 104m3/h, causes 11 people dead。
(2) the subsidiary geological disaster in ground is brought out。Tunnel Gushing causes surface subsidence, ground settlement, the heavy damage balance in farmland, earth's surface and resident living, production water resource, the infiltration that potential water inrush channel is heavy showers surface water provides condition, construction time and run the safety of phase after building up in serious threat tunnel。
(3) balance of water resource system is destroyed。Tunnel Gushing gushes mud and will inevitably cause the disorder of groundwater circle system, and in the short time, original balance of water resource system has been broken in the release of a large amount of power potential energy, is mainly manifested in water resource exhaustion and pollutes two aspects。
(4) other potential eutrophication。Surrouding rock stress state and groundwater dynamics blood circulation is changed largely owing to retention of excessive fluid gushes mud geological disaster, its hazardness is significantly larger than the illusion at outburst initial stage, potential disaster is still difficult to it is anticipated that such as water gushing channelway secondary retention of excessive fluid, seasonal reservoir structure bring back to life and regional stress mutation etc.。
It follows that a construction technology difficult problem not only can be brought when tunnel generation retention of excessive fluid gushes mud geological disaster, also make the balance of nature of country rock and water body that great destruction occurs。
Summary of the invention:
Technical problem to be solved in the utility model be to provide a kind of when tunnel be in sand shale construction the 3rd, can effectively control tunnel deformation, landslide, prevent the disasters such as the prominent mud of retention of excessive fluid, reduce difficulty of construction, it is ensured that the tunnel of construction quality and safety comprehensively sluices, precipitation, depressurized system simultaneously。
For achieving the above object, the technical solution adopted in the utility model is: it includes earth's surface to positive hole, left to positive hole on earth's surface, right both sides respectively set row's ground precipitation well, often row's ground precipitation well all includes several ground precipitation wells tandem, near positive hole, flat pilot tunnel is set on earth's surface, flat pilot tunnel sets spilled water hole to earth's surface to Zheng Dong oblique upper place, earth's surface is designed with Tunnel Base dewatering well to positive hole substrate peace pilot tunnel substrate, earth's surface sets the oblique spilled water hole in some roads forward diagonally upward to positive hole vault, earth's surface sets the vertical spilled water hole in positive hole above the vault in positive hole, the vertical spilled water hole of flat pilot tunnel is set above flat pilot tunnel vault。
The utility model has the advantages that:
1, earth's surface is designed with dewatering well to Zheng Dong both sides, successfully reduces tunnel trunk vault head hydraulic pressure, makes surrouding rock deformation be effectively controlled, it is therefore prevented that the downward seepage of rich water sand-mudstone formation subsoil water。
2, set up the effect that flat pilot tunnel not only adds headwork face but also the hydraulic pressure of tunnel trunk serves dividing potential drop, reduce external water pressure to tunnel-liner support crimp, well protect construction quality and safety。
3, earth's surface is designed with Tunnel Base dewatering well to positive hole peace pilot tunnel, the seepage flow water system of tunnel surrounding rock body, crack water system is collected, and makes tunnel environment be in a kind of drying regime, is conducive to mechanized construction。
4, barrel upper water is tied to form merit shunting to each spilled water hole of peace pilot tunnel arch, positive hole by earth's surface, it is to avoid the relatively mass-flow impact to vault country rock, reduces the humidity of the soil body, is effectively improved stratum physical and mechanical property index, it is suppressed that the deformation of support system。
5, comprehensively sluiced by tunnel, precipitation, depressurized system, it is to avoid landslide, deformation, retention of excessive fluid gush the geological disasters such as mud, improve soil solidifying intensity, add soil body effective stress, it is possible to ensure safety for tunnel engineering, accelerate Tunnel Construction Schedule。
Accompanying drawing illustrates:
Fig. 1 is main TV structure schematic diagram of the present utility model。
Detailed description of the invention:
With reference to Fig. 1, it includes earth's surface to positive hole 5, left to positive hole 5 on earth's surface, right both sides respectively set row's ground precipitation well 1, often row's ground precipitation well all includes several ground precipitation wells tandem, near positive hole, flat pilot tunnel 2 is set on earth's surface, flat pilot tunnel sets spilled water hole 3 to earth's surface to Zheng Dong oblique upper place, earth's surface is designed with Tunnel Base dewatering well 4 to positive hole substrate peace pilot tunnel substrate, earth's surface sets the oblique spilled water hole 6 in some roads forward diagonally upward to positive hole vault, earth's surface sets the vertical spilled water hole 7 in positive hole above the vault in positive hole, the vertical spilled water hole 8 of flat pilot tunnel is set above flat pilot tunnel vault。
Claims (1)
1. a tunnel comprehensively sluices, precipitation, depressurized system, it is characterized in that: include earth's surface to positive hole (5), left to positive hole (5) on earth's surface, right both sides respectively set row's ground precipitation well (1), often row's ground precipitation well all includes several ground precipitation wells tandem, near positive hole, flat pilot tunnel (2) is set on earth's surface, flat pilot tunnel sets spilled water hole (3) to earth's surface to Zheng Dong oblique upper place, earth's surface is designed with Tunnel Base dewatering well (4) to positive hole substrate peace pilot tunnel substrate, earth's surface sets the oblique spilled water hole in some roads (6) forward diagonally upward to positive hole vault, earth's surface sets the vertical spilled water hole in positive hole (7) above the vault in positive hole, the vertical spilled water hole of flat pilot tunnel (8) is set above flat pilot tunnel vault。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620038554.5U CN205330731U (en) | 2016-01-16 | 2016-01-16 | Sluicing, precipitation, depressurization system are synthesized to tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620038554.5U CN205330731U (en) | 2016-01-16 | 2016-01-16 | Sluicing, precipitation, depressurization system are synthesized to tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330731U true CN205330731U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620038554.5U Active CN205330731U (en) | 2016-01-16 | 2016-01-16 | Sluicing, precipitation, depressurization system are synthesized to tunnel |
Country Status (1)
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| CN (1) | CN205330731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533314A (en) * | 2018-05-25 | 2018-09-14 | 长沙矿山研究院有限责任公司 | A kind of mine worked-out section enclosure method and its application system |
-
2016
- 2016-01-16 CN CN201620038554.5U patent/CN205330731U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533314A (en) * | 2018-05-25 | 2018-09-14 | 长沙矿山研究院有限责任公司 | A kind of mine worked-out section enclosure method and its application system |
| CN108533314B (en) * | 2018-05-25 | 2023-07-04 | 长沙矿山研究院有限责任公司 | Mine goaf sealing method and application system thereof |
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