CN207673371U - A kind of novel tunnel drainage system construction - Google Patents
A kind of novel tunnel drainage system construction Download PDFInfo
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- CN207673371U CN207673371U CN201721868407.1U CN201721868407U CN207673371U CN 207673371 U CN207673371 U CN 207673371U CN 201721868407 U CN201721868407 U CN 201721868407U CN 207673371 U CN207673371 U CN 207673371U
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Abstract
A kind of novel tunnel drainage system construction, transformation is optimized by the drainage system to traditional double -coil output, eliminate effect of the underground water to tunnel-liner bottom structure, karst or the regional tunnel inverted arch floating deformation of underground water development or tunnel bottom structure cracking destruction are effectively solved the problems, such as, to ensure stabilization and the safety of constructing tunnel and operation.Drainage system includes arch wall range drainage system and is set to the lateral sulcus construct of tunnel bottom horizontal both sides.Bottom plate is set in the middle part of the both sides lateral sulcus construct and tunnel bottom on excavation face, and hereafter square lateral sulcus construct groove profile cavity constitutes tunnel longitudinal drainage channel to bottom plate with it.The drainage system further includes tunnel bottom drainage system and railway roadbed ponding excretory system, and arch wall range drainage system, tunnel bottom drainage system and railway roadbed ponding excretory system are connected with both sides groove profile cavity.
Description
Technical field
The utility model is related to tunnel drainage system construction, more particularly to one kind applying to underground water development location, underground
Water is constructed by the drainage system in the irregular location of seasonal effect or the tunnel of karst area.
Background technology
With railway construction in China high speed development, high standard double track railway is built more and more.Especially in Southwest Mountainous Areas, one
Aspect, since lime rock stratum is widely distributed；On the other hand, to high-speed railway, circuit show line big, topographic and geologic by sweep
The restriction of many factors such as complicated condition causes Karst Tunnel scale (quantity and length) to increase sharply.Due to karst and karst
Water development has the characteristics that complexity, diversity and irregularities, and Karst Tunnel of growing up is built risk especially operations risks and got over
Come higher.
In recent years, suitable ten thousand, had occurred during Shanghai elder brother, the expensive Railway Tunnels operation such as wide several ballastless track beds deformations,
The water damages event such as inverted arch and filling protuberance, causes Railway Design, construction, construction and the great attention for runing each side.
The tunnel of traditional design is largely to there is inverted arch lining cutting, and by taking one-tunnel two-tracks tunnel as an example, drainage system is with " tunnel
Draining in vivo " is Main Patterns, and underground water discharge path is：Country rock → preliminary bracing → draining blind pipe → lateral sulcus → transverse drainage
Pipe → Central drain, the i.e. water on tunnel structure periphery are permeated by preliminary bracing enters tunnel structure sheet via draining blind pipe ejectment
Central drain within body, it is final to be discharged outside hole.The drainage system of double -coil output is main drawback is that following several at present
Aspect：
1. thering is the pressure release point of pressure underground water to be respectively positioned on to be arranged inside lining cutting agent structure, lining cutting agent structure is caused to bear
Hydrostatic pressing or hydrodynamic range are larger.
2. Central drain (or lateral sulcus) is set within tunnel structure, the periphery underground water of main ejectment arch wall range, tunnel
Inverted arch ponding below can not effective ejectment, once under continuous rainfall or rainstorm weather, under Local topography inverted arch crevice water or
Pipeline water because can not in time ejectment cause hydraulic pressure drastically to increase.Under the effect of high hydraulic pressure, cause tunnel bottom inverted arch cracking failure.
3. country rock water needs finally to lead to central trench by ring, longitudinal blind pipe, lateral sulcus and the multiple ejectment of transverse drain, arrange
Water route path length, failure probability are big.Once some position goes wrong, entire drainage path will fail.
4. being needed by ballast bed structure, hole auxiliary structures and tunnel cross-section engineering economy being restricted, consider that construction is difficult
The cross-section of river degree of freedom of easy degree, hole medial sulcus or Central drain is little, and discharge capacity is limited, often causes water damage in hole.
5. since tunnel bottom is arc-shaped, excavate that control is more difficult, and it is big that tunnel bottom void slag cleans out difficulty completely, during operation
Due to tunnel bottom underground water can not ejectment, Train induced load repeated action in addition easily causes tunnel bottom the disasters such as to rise soil.
Therefore, optimization improvement drainage system ensures that draining is unobstructed, eliminates tunnel bottom structure hydraulic pressure, and becoming reduces underground water hair
Location, underground water are educated by the irregular location of seasonal effect and karst area tunnel water damage risk, ensure that the urgent of operation security is essential
It wants.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of novel tunnel drainage system constructions, by passing
The drainage system of system double -coil output optimizes transformation, eliminates effect of the underground water to tunnel-liner bottom structure, effectively
Karst or the regional tunnel inverted arch floating deformation of underground water development or tunnel bottom structure cracking destruction are solved the problems, such as, to ensure that tunnel is applied
The stabilization and safety of work and operation.
Technical solution is as follows used by the utility model solves its technical problem：
A kind of novel tunnel drainage system of the utility model constructs, and drainage system includes arch wall range drainage system and sets
It is placed in the lateral sulcus construct of tunnel bottom horizontal both sides, it is characterized in that：In the middle part of the both sides lateral sulcus construct and tunnel bottom on excavation face
Bottom plate is set, and hereafter square lateral sulcus construct groove profile cavity constitutes tunnel longitudinal drainage channel to bottom plate with it；The drainage system
Further include tunnel bottom drainage system and railway roadbed ponding excretory system, arch wall range drainage system, tunnel bottom drainage system and railway roadbed ponding
Excretory system is connected with both sides groove profile cavity.
The arch wall range drainage system includes circle draining blind pipe and abutment wall tapping pipe, and circle draining blind pipe is located at arch wall
Between preliminary bracing structure and arch wall secondary liner structure, it is laid between non-woven geotextile and splash guard along tunnel excavation direction interval
And it is introduced directly into groove profile cavity in abutment wall lower part；The abutment wall tapping pipe is laid along tunnel excavation direction interval and stretches into country rock
Certain length, with drainage abutment wall range underground water and pressure release.
Tunnel bottom drainage system includes tunnel bottom longitudinal direction french drain and tunnel bottom tapping pipe, tunnel bottom longitudinal direction french drain be arranged in bottom plate with
At lower close both sides lateral sulcus construct, to collect simultaneously drainage tunnel bottom underground water；Tunnel bottom tapping pipe is between tunnel excavation direction
Every being laid in lateral sulcus construct, tunnel bottom longitudinal direction french drain is stretched into one end, and the other end introduces in groove profile cavity, with ejectment tunnel bottom longitudinal direction
French drain charge for remittance.
The railway roadbed ponding excretory system includes the side drain hole being laid in along tunnel excavation direction interval on bottom plate, and side is let out
Railway roadbed ponding is respectively led into the groove profile cavity of both sides by water hole.
The utility model has the beneficial effects that compared with the drainage system of traditional double -coil output, it is not provided with middle edema with the heart involved
Ditch, arch wall circumferential direction blind pipe are introduced directly into lateral sulcus, and drainage path is shorter, reliability higher；It is provided with arch wall range draining system altogether
Three sets system, tunnel bottom drainage system and tunnel inner water drainage system drainage systems, drainability is stronger, can effective drainage arch wall range and
Tunnel bottom underground water avoids traditional liner structure because ground water discharge is unsmooth or heavy rain season groundwater run off abruptly increase leads to inverted arch backsight
Structure crack is built to destroy；The abutment wall tapping pipe of setting, underground water that can be fully in drainage abutment wall range country rock and pressure release in advance；Tunnel
Road drainage channel is located at bottom plate hereinafter, can ensure that tunnel bottom level of ground water is located at bottom plate bottom surface absolute altitude hereinafter, thoroughly eliminating ground always
Effect of water pressure of the lower water to tunnel floor structure；Lateral sulcus construct is located at bottom plate hereinafter, the freedom that cross-section of river size is arranged
Degree is high, and discharge capacity is big, may replace the drain cavern of traditional underground water development location Tunnel Engineering setting, average every kilometer of sandhog
It is more than 10,000,000 that journey, which can save project cost, and economic benefit is very notable.
Description of the drawings
This specification includes following three width attached drawing：
Fig. 1 is a kind of cross-section diagram of novel tunnel drainage system construction of the utility model；
Fig. 2 is the enlarged drawing of the parts A in Fig. 1；
Fig. 3 is that I-I lines cut open figure along Fig. 1.
Component, toponym and corresponding label are shown in figure：Arch wall preliminary bracing structure 10, screed-coat 12, nonwoven soil
Work cloth 20a, splash guard 20b；Circle draining blind pipe 31a, abutment wall tapping pipe 31b, tunnel bottom longitudinal direction french drain 32a, tunnel bottom tapping pipe
32b, side drain hole 33, arch wall secondary liner structure 40, bottom plate 41, lateral sulcus construct 42, groove profile cavity B, cable trench 50.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
Referring to Fig.1, a kind of novel tunnel drainage system construction, drainage system include arch wall range drainage system and are set to
The lateral sulcus construct 42 of tunnel bottom horizontal both sides.Bottom plate is set on excavation face in the middle part of the both sides lateral sulcus construct 42 and tunnel bottom
41, hereafter square 42 groove profile cavity B of lateral sulcus construct constitutes tunnel longitudinal drainage channel to bottom plate 41 with it.The drainage system is also
Including tunnel bottom drainage system and railway roadbed ponding excretory system, arch wall range drainage system, tunnel bottom drainage system and railway roadbed ponding row
System is let out with both sides groove profile cavity B to be connected.It is provided with three sets of drainage systems altogether, drainability is stronger, can effective drainage arch wall
Range and tunnel bottom underground water avoid traditional liner structure because ground water discharge is unsmooth or heavy rain season groundwater run off abruptly increase causes to face upward
Lining cutting structure crack destroys after arch.Lateral sulcus construct 42 is located at 41 or less both sides abutment wall bottom of bottom plate, the setting of cross-section of river size
Degree of freedom it is high, discharge capacity is big, can ensure that tunnel bottom level of ground water is located at bottom plate bottom surface absolute altitude hereinafter, thoroughly eliminating underground always
Effect of water pressure of the water to tunnel floor structure.
Referring to Figures 1 and 2, the arch wall range drainage system includes circle draining blind pipe 31a and abutment wall tapping pipe 31b,
Circle draining blind pipe 31a is located between arch wall preliminary bracing structure 10 and arch wall secondary liner structure 40, between tunnel excavation direction
Every being laid between non-woven geotextile 20a and splash guard 20b and being introduced directly into groove profile cavity B in abutment wall lower part, drainage path is more
It is short, reliability higher..The abutment wall tapping pipe 31b lays along tunnel excavation direction interval and stretches into country rock certain length, to dredge
Dry abutment wall range underground water and pressure release.
Referring to Figures 1 and 2, tunnel bottom drainage system includes tunnel bottom longitudinal direction french drain 32a and tunnel bottom tapping pipe 32b, tunnel bottom
Longitudinal french drain 32a is arranged in 41 or less bottom plate at both sides lateral sulcus construct 42, to collect simultaneously drainage tunnel bottom underground water.It is described
Tunnel bottom tapping pipe 32b is laid in along tunnel excavation direction interval in lateral sulcus construct 42, and tunnel bottom longitudinal direction french drain 32a is stretched into one end,
The other end introduces in groove profile cavity B, with ejectment tunnel bottom longitudinal direction french drain 32a charges for remittance.
Referring to Figures 1 and 2, the railway roadbed ponding excretory system includes being laid on bottom plate 41 along tunnel excavation direction interval
Side drain hole 33, railway roadbed ponding is respectively led into the groove profile cavity B of both sides by side drain hole 33.On bottom plate 41 in can laterally two
End setting cable trench 50, side drain hole 33 are set to the outside of cable trench 50.
Some principles of the utility model kind novel tunnel drainage system construction described above that only explains through diagrams, not
Be by the utility model be confined to shown in and the concrete structure and the scope of application in, therefore every be possible to be utilized
Corresponding modification and equivalent, belong to the apllied the scope of the claims of the utility model.
Claims (5)
1. a kind of novel tunnel drainage system construction, drainage system include arch wall range drainage system and are set to tunnel bottom horizontal two
The lateral sulcus construct (42) of side, it is characterized in that：Bottom is set on excavation face in the middle part of the both sides lateral sulcus construct (42) and tunnel bottom
Plate (41), hereafter square lateral sulcus construct (42) groove profile cavity (B) constitutes tunnel longitudinal drainage channel to bottom plate (41) with it；It is described
Drainage system further includes tunnel bottom drainage system and railway roadbed ponding excretory system, arch wall range drainage system, tunnel bottom drainage system and
Railway roadbed ponding excretory system is connected with both sides groove profile cavity (B).
2. a kind of novel tunnel drainage system construction as described in claim 1, it is characterized in that：The arch wall range drainage system
Including circle draining blind pipe (31a) and abutment wall tapping pipe (31b), circle draining blind pipe (31a) is located at arch wall preliminary bracing structure
(10) between arch wall secondary liner structure (40), non-woven geotextile (20a) and splash guard are laid in along tunnel excavation direction interval
It is introduced directly into groove profile cavity (B) between (20b) and in abutment wall lower part；The abutment wall tapping pipe (31b) is between tunnel excavation direction
Every laying and stretching into country rock certain length, with drainage abutment wall range underground water and pressure release.
3. a kind of novel tunnel drainage system construction as described in claim 1, it is characterized in that：Tunnel bottom drainage system includes
Tunnel bottom longitudinal direction french drain (32a) and tunnel bottom tapping pipe (32b), tunnel bottom longitudinal direction french drain (32a) are arranged in bottom plate (41) below close to two
At side lateral sulcus construct (42), to collect simultaneously drainage tunnel bottom underground water；Tunnel bottom tapping pipe (32b) is between tunnel excavation direction
Every being laid in lateral sulcus construct (42), tunnel bottom longitudinal direction french drain (32a) is stretched into one end, and the other end introduces in groove profile cavity (B), with
Ejectment tunnel bottom longitudinal direction french drain (32a) charge for remittance.
4. a kind of novel tunnel drainage system construction as described in claim 1, it is characterized in that：The railway roadbed ponding excretory system
Include the side drain hole (33) being laid in along tunnel excavation direction interval on bottom plate (41), side drain hole (33) divides railway roadbed ponding
It does not lead in both sides groove profile cavity (B).
5. a kind of novel tunnel drainage system construction as described in claim 1, it is characterized in that：In transverse direction on the bottom plate (41)
Cable trench (50) is arranged in both ends, and side drain hole (33) is set to the outside of cable trench (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868407.1U CN207673371U (en) | 2017-12-27 | 2017-12-27 | A kind of novel tunnel drainage system construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868407.1U CN207673371U (en) | 2017-12-27 | 2017-12-27 | A kind of novel tunnel drainage system construction |
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| CN207673371U true CN207673371U (en) | 2018-07-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273708A (en) * | 2019-07-01 | 2019-09-24 | 长沙矿山研究院有限责任公司 | A kind of hydrophobic method of roadway support structural body control |
| CN110878700A (en) * | 2019-12-05 | 2020-03-13 | 福建鑫远建工有限公司 | Tunnel waterproof structure and construction method thereof |
| CN111734457A (en) * | 2020-07-02 | 2020-10-02 | 青岛理工大学 | Construction method of tunnel water-drainage-preventing system |
| CN112012789A (en) * | 2020-07-26 | 2020-12-01 | 中铁二院工程集团有限责任公司 | Shaft bottom collection drainage system of railway tunnel long and large inclined shaft |
-
2017
- 2017-12-27 CN CN201721868407.1U patent/CN207673371U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273708A (en) * | 2019-07-01 | 2019-09-24 | 长沙矿山研究院有限责任公司 | A kind of hydrophobic method of roadway support structural body control |
| CN110878700A (en) * | 2019-12-05 | 2020-03-13 | 福建鑫远建工有限公司 | Tunnel waterproof structure and construction method thereof |
| CN111734457A (en) * | 2020-07-02 | 2020-10-02 | 青岛理工大学 | Construction method of tunnel water-drainage-preventing system |
| CN112012789A (en) * | 2020-07-26 | 2020-12-01 | 中铁二院工程集团有限责任公司 | Shaft bottom collection drainage system of railway tunnel long and large inclined shaft |
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