CN108005688A - The external dewatering type lining cutting of buried lateral sulcus and its drainage system - Google Patents
The external dewatering type lining cutting of buried lateral sulcus and its drainage system Download PDFInfo
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- CN108005688A CN108005688A CN201711438447.7A CN201711438447A CN108005688A CN 108005688 A CN108005688 A CN 108005688A CN 201711438447 A CN201711438447 A CN 201711438447A CN 108005688 A CN108005688 A CN 108005688A
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- lateral sulcus
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 238000009412 basement excavation Methods 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 12
- 239000011378 shotcrete Substances 0.000 claims description 7
- 239000004746 geotextile Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 10
- 238000011161 development Methods 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007667 floating Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 20
- 239000003673 groundwater Substances 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000001932 seasonal effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The external dewatering type lining cutting of buried lateral sulcus and its drainage system, reduce and even eliminate effect of the underground water to tunnel-liner polycrystalline substance, effectively solve the problems, such as karst or the regional tunnel inverted arch floating deformation of underground water development or tunnel bottom structure cracking destruction, it is ensured that constructing tunnel and the stabilization and security of operation.Including arch wall preliminary bracing structure, arch wall secondary liner structure and arch wall scope waterproof layer, and drainage system.The arch wall secondary liner structure both sides abutment wall bottom sets the longeron for consolidating be integrated therewith, bearing structure of the longeron as arch wall secondary lining.Bottom plate is set in tunnel bottom surface between two side girders, bottom plate transverse ends are consolidated with two side girders, and longeron in bottom plate lower edge on the inside of hole by setting lateral sulcus.The drainage system includes arch wall scope drainage system and tunnel bottom drainage system, and arch wall scope drainage system, tunnel bottom drainage system are connected with lateral sulcus.
Description
Technical field
The present invention relates to tunnel-liner and drainage system to construct, more particularly to one kind apply to underground water development location,
Lower water is constructed by the irregular location of seasonal effect or the tunnel-liner of karst area and its waterproof and water drainage system.
Background technology
Come into 21st century, railway construction in China high speed development, speed per hour 200km above high standard double track railways are repaiied
Build more and more.Especially in Southwest Mountainous Areas, on the one hand, since lime rock stratum is widely distributed；On the other hand, to high-speed railway,
Circuit show line is restricted by many factors such as big, the topographic and geologic complicated conditions of sweep, causes Karst Tunnel scale (quantity
And length) increase sharply.Since karst and karst water development have the characteristics that complexity, diversity and irregularities, rock of growing up
Molten tunneling risk particularly operations risks are higher and higher.
In recent years, suitable ten thousand, during Shanghai elder brother, the expensive Railway Tunnel operation such as wide there occurs some ballastless track beds deformations,
The water damage event such as inverted arch and filling protuberance, causes Railway Design, construction, construction and the great attention for runing each side.Through adjusting
Look into, both wired water damage was broadly divided into two classes：
(1) inverted arch filling, which is floated, deforms.The construction joint that the construction in layer of its performance predominantly tunnel bottom structure is brought is in hydraulic pressure
Deformation, expansion under effect.
1. code requirement inverted arch should be separated with inverted arch filling and poured.This engineering method forms construction joint between inverted arch and filling,
But underground water penetrates into inverted arch by inverted arch circular construction joint and fills bottom, and about 3~4m heads can cause filling to be floated.
2. in practice of construction, to prevent railway roadbed construction surface from being destroyed by Construction traffic, inverted arch filling often uses placement layer by layer
Mode, inverted arch filling top layer (or regulating course) thickness about 0.2~0.4m of placing before railway roadbed construction, it is only necessary to 0.5~1m
High head can cause to fill top layer floating, and then cause railway roadbed to deform.
3. ballastless track bed to road bed board and inverted arch fill surface using the connectionless way of contact, it is right there are construction interface
It is more notable in the sensitiveness of tunnel bottom infiltration, often also there is " gap " lifting phenomenon and wear phenomenon, under the action of water,
Disease Characters are particularly evident.Its stiffness difference huge with tunnel structure, deformation and track structure are to foundation deformation pole
The adaptability of difference has been further exacerbated by adverse effect and difficulty of governance of the tunnel bottom water damage to operation security.
(2) liner structure is mainly inverted arch strain cracking.
1. limited by vertical, the circumferential blind pipe and abutment wall spilled water hole drainability that are set in tunnel, after work drainage system by
Physical (silt, fine grained deposition are silted up), (soluble matter separates out, concrete and slurry reaction residue coagulate for chemical type blocking
Knot) etc. reason will all cause impeded drainage, hydraulic pressure change dramatically, causes liner structure cracking failure.
2. the structures such as abutment wall longitudinal direction construction joint, circular construction joint, inverted arch bottom and waterproof weak link recurring structure become
Shape, cracking and waterproof failure；There is water spray, gushes silt etc. in local location.
3. level of ground water seasonal fluctuations, cause lining cutting to bear " dynamic load " influence.In continuous rainfall or Severe rainstorm weather
Under the conditions of, level of ground water increases suddenly, and lining cutting bears higher hydraulic pressure.
The tunnel designed at present is largely to have inverted arch lining cutting.By taking one-tunnel two-tracks tunnel as an example, its drainage system is with " tunnel
Draining in road body " is Main Patterns, and underground water discharge path is：Country rock → preliminary bracing → draining blind pipe → lateral sulcus → transverse direction
Drainpipe → Central drain, the i.e. water on tunnel structure periphery are permeated by preliminary bracing enters tunnel via the ejectment of draining blind pipe
Central drain within structural body, it is final to discharge outside hole.
Drainage system in tunnel body main drawback is that：
It is arranged on 1. the pressure release point for having pressure underground water is respectively positioned on inside lining cutting agent structure, causes lining cutting agent structure to hold
It is larger by hydrostatic pressing or hydrodynamic scope.
2. Central drain (or lateral sulcus) is arranged within tunnel structure, the periphery underground water of main ejectment arch wall scope, tunnel
Ponding below inverted arch can not effective ejectment, once under continuous rainfall or rainstorm weather, under Local topography inverted arch crevice water or
Pipeline water because can not ejectment in time cause hydraulic pressure drastically to raise.Under the effect of high hydraulic pressure, cause tunnel bottom inverted arch cracking failure.
3. tunnel is in underground water seasonal fluctuation zone etc. and the close region of extraneous hydraulic connection, in continuous rainfall or sudden and violent
Under rainy day gas, because of groundwater run off abruptly increase, limited by abutment wall sluicing pore size and spacing, it is difficult in time by its ejectment to tunnel knot
In gutter in structure body, so as to cause level of ground water drastically to raise.Under the effect of high hydraulic pressure, Lining cracks are caused to destroy.
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 free degree of easy degree, hole medial sulcus or Central drain is little, and discharge capacity is limited, and 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, run the phase
Between due to tunnel bottom underground water can not ejectment, Train induced load repeated action in addition, easily causes tunnel bottom the disaster such as to rise soil.
Therefore, optimize liner structure and drainage system, ensure that draining is unobstructed, reduce and even eliminate tunnel bottom hydraulic pressure, become drop
Low underground water development location, underground water are ensured operation peace by the irregular location of seasonal effect and karst area tunnel water damage risk
It is complete there is an urgent need to.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of external dewatering type lining cutting of buried lateral sulcus and its draining system
System, by transforming conventional tunnel lining cutting tunnel bottom structure form, changes tunnel bottom structure stress form and drainage system, subtracts
Effect small or even that elimination underground water is to tunnel-liner polycrystalline substance, effectively solves karst or the regional tunnel of underground water development is faced upward
The problem of deformation of arch floating or tunnel bottom structure cracking destruction, it is ensured that constructing tunnel and the stabilization and security of operation.
The technical solution adopted by the present invention to solve the technical problems is as follows：
The external dewatering type lining cutting of buried lateral sulcus of the present invention and its drainage system, including arch wall preliminary bracing structure, arch wall
Secondary liner structure and arch wall scope waterproof layer, and drainage system, it is characterized in that：The arch wall secondary liner structure both sides
Abutment wall bottom sets the longeron for consolidating be integrated therewith, bearing structure of the longeron as arch wall secondary lining；Between two side girders in
Tunnel bottom surface sets bottom plate, and bottom plate transverse ends are consolidated with two side girders, and longeron in bottom plate lower edge on the inside of hole by setting lateral sulcus；Institute
Stating drainage system includes arch wall scope drainage system and tunnel bottom drainage system, arch wall scope drainage system, tunnel bottom drainage system
It is connected with lateral sulcus.
The arch wall scope drainage system includes circle draining blind pipe and abutment wall tapping pipe, and circle draining blind pipe is along tunnel
Direction interval is excavated to be laid between non-woven geotextile and splash guard and be introduced directly into lateral sulcus through longeron in abutment wall lower part；Institute
State abutment wall tapping pipe to be laid in longeron along tunnel excavation direction interval, country rock certain length is stretched into one end, and the other end directly draws
Enter lateral sulcus, with drainage abutment wall scope underground water and pressure release.
Tunnel bottom drainage system includes tunnel bottom longitudinal direction french drain and tunnel bottom tapping pipe, and tunnel bottom longitudinal direction french drain is arranged under bottom plate
At lateral sulcus, to collect simultaneously drainage tunnel bottom underground water；Tunnel bottom tapping pipe is laid in lateral sulcus ditch along tunnel excavation direction interval
In wall, tunnel bottom longitudinal direction french drain is stretched into one end, and the other end is introduced in lateral sulcus, with ejectment tunnel bottom longitudinal direction french drain charge for remittance.
The beneficial effects are mainly as follows following aspects：
1st, tunnel bottom uses base arrangement, excavates operation and is more convenient, overcomes traditional lining types inverted arch foundation excavation curvature
The problems such as not easy to control, be compared to the liner structure that traditional tunnel bottom is inverted arch form, save construction material, effectively reduce work
Journey construction investment；
2nd, tunnel bottom uses base arrangement, is not required to apply Concrete Filled body thereon, effectively prevent traditional bent wall band inverted arch
Lining cutting destroys obturator since underground water enters extruding between inverted arch and inverted arch blind by inverted arch construction joint, causes track
Structure is destroyed；
3rd, tunnel bottom both sides set bearing structure of the longeron as arch wall secondary lining, are locally lain in for tunnel side wall bottom
Weak surrounding rock location can effectively control arch wall supporting construction sedimentation and deformation, to karst area tunnel, can effectively cross over certain size
The Karst Features (molten chamber, filling solution cavity, corroded breaking zone etc.) of scope；
4th, lateral sulcus is set in bottom plate lower part both sides, the ditch cross-section of river is located at below floor level, can be by underground water potential drop
To bottom plate, prevent the big vast season underground water of rain from being damaged to bottom plate.Tradition can be cancelled using the liner structure form at the same time
The drain cavern set in Tunnel Design in underground water development location, average every kilometer of Tunnel Engineering can save project cost and exceed
10000000.
5th, the drainage system that the present invention is set, compared to traditional double -coil output liner structure drainage system, a side
Face, drainage system of the invention use " external draining " mode, i.e., whole drainage system is located at outside tunnel agent structure, tunnel
Road peripheral rock underground water does not enter in tunnel, reliability higher；On the other hand, drainability is stronger, can effective drainage arch wall
Scope and tunnel bottom underground water, base arrangement is down to once by groundwater level, evades traditional liner structure because of ground water discharge not
Smooth or heavy rain season groundwater run off abruptly increase causes lining side wall and tunnel bottom structure cracking destruction.
The present invention by transforming conventional tunnel lining cutting tunnel bottom structure form, change tunnel bottom structure stress form and
Drainage system, reduces and even eliminates effect of the underground water to tunnel-liner polycrystalline substance, effectively solves karst or underground water development
The problem of regional tunnel inverted arch floating deformation or tunnel bottom structure cracking destruction, it is ensured that constructing tunnel and the stabilization and safety of operation
Property.
Brief description of the drawings
This specification includes following three width attached drawing：
Fig. 1 is the sectional drawing of the external dewatering type lining cutting of the buried lateral sulcus of the present invention and its drainage system；
Fig. 2 is the enlarged drawing of A parts in Fig. 1；
Fig. 3 is the profile of the I-I lines along Fig. 1.
Component, toponym and corresponding mark are shown in figure：Arch wall preliminary bracing structure 10, arch wall gunite concrete
Layer 10a, arch wall steelframe 10b, arch wall system anchor bolt 10c, screed-coat 11, the second screed-coat 12, arch wall scope waterproof layer 20, 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, lateral sulcus 32c, arch wall secondary liner structure 40, bottom plate 41, longeron 42.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
With reference to Fig. 1, the external dewatering type lining cutting of buried lateral sulcus of the invention and its drainage system, including arch wall preliminary bracing
Structure 10, arch wall secondary liner structure 40 and arch wall scope waterproof layer 20, and drainage system.The arch wall secondary lining knot
40 both sides abutment wall bottom of structure sets the longeron 42 for consolidating be integrated therewith, carrying knot of the longeron 42 as arch wall secondary lining 40
Structure, arch wall supporting construction sedimentation and deformation can effectively be controlled by locally lying in weak surrounding rock location for tunnel side wall bottom, to karst region
Area tunnel can be effectively across the Karst Features (molten chamber, filling solution cavity, corroded breaking zone etc.) of certain size scope.
With reference to Fig. 1, bottom plate 41 is set in tunnel bottom surface between two side girders 42,41 transverse ends of bottom plate are solid with two side girders 42
Knot, tunnel bottom use base arrangement, excavate operation and are more convenient, it is not easily-controllable to overcome traditional lining types inverted arch foundation excavation curvature
The problems such as guidance；The liner structure that traditional tunnel bottom is inverted arch form is compared to, saves construction material, engineering is effectively reduced and builds
If investment.It is not required to apply Concrete Filled body on tunnel bottom, effectively prevent traditional bent wall band inverted arch lining cutting since underground water passes through
Inverted arch construction joint enters extruding between inverted arch and inverted arch blind and destroys obturator, causes track structure to destroy.
With reference to Fig. 1, the longeron 42 in 41 lower edge of bottom plate on the inside of hole by setting lateral sulcus 32c.The drainage system includes arch
Wall scope drainage system and tunnel bottom drainage system, arch wall scope drainage system, tunnel bottom drainage system are connected with lateral sulcus 32c.Cross
Water section is always positioned at below 41 absolute altitude of bottom plate, and level of ground water can be down to bottom plate below 41, prevents the big vast season underground water pair of rain
Bottom plate damages.Lateral sulcus 32c is located under bottom plate 41, it is ensured that whole drainage system is located at outside tunnel agent structure, tunnel
Road peripheral rock underground water does not enter in tunnel, reliability higher.Conventional tunnel design can be cancelled using the liner structure form
In the drain cavern that is set in underground water development location, average every kilometer of Tunnel Engineering can save project cost more than 10,000,000.
Referring to figs. 1 to Fig. 3, the arch wall scope drainage system includes circle draining blind pipe 31a and abutment wall tapping pipe 31b,
Circle draining blind pipe 31b is laid between non-woven geotextile 20a and splash guard 20b and under abutment wall along tunnel excavation direction interval
Portion is introduced directly into lateral sulcus 32c through longeron 42.The abutment wall tapping pipe 31b is laid in longeron along tunnel excavation direction interval
In 42, country rock certain length is stretched into one end, and the other end is introduced directly into lateral sulcus 32c, with drainage abutment wall scope underground water and pressure release.
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 arrangement bottom plates
41 times by lateral sulcus 32c locate, with collect simultaneously drainage tunnel bottom underground water.The tunnel bottom tapping pipe 32b is along tunnel excavation direction interval cloth
In lateral sulcus 32c furrow banks, tunnel bottom longitudinal direction french drain is stretched into one end, and the other end is introduced in lateral sulcus 32c, longitudinally blind with ejectment tunnel bottom
Ditch charge for remittance.
Referring to Figures 1 and 2, the arch wall scope waterproof layer 20 is located at 10 structure of arch wall preliminary bracing and the secondary lining of arch wall
Between building structure 40, including the splash guard 20b of the geotextiles 20a of internal layer and outer layer.The arch wall preliminary bracing structure 10 includes
Cover the arch wall shotcrete layer 10a and the arch wall system anchor bolt 10c along arch wall quincuncial arrangement of arch wall country rock.The arch
Arch wall steelframe 10b is laid along tunnel excavation direction interval in wall shotcrete layer 10a, is added in arch wall shotcrete layer 10a
If bar-mat reinforcement.With reference to Fig. 1,42 bottom of longeron sets screed-coat 11, and 41 bottom of bottom plate sets the second screed-coat 12.
Some of simply the explain through diagrams external dewatering type lining cutting of the buried lateral sulcus of the present invention and its drainage system described above
Principle, be not intended to by the present invention be confined to shown in and the concrete structure and the scope of application in, therefore it is every be possible to by
The corresponding modification utilized and equivalent, belong to the apllied the scope of the claims of the present invention.
Claims (6)
1. the external dewatering type lining cutting of buried lateral sulcus and its drainage system, including arch wall preliminary bracing structure (10), the secondary lining of arch wall
Structure (40) and arch wall scope waterproof layer (20), and drainage system are built, it is characterized in that：The arch wall secondary liner structure (40)
Both sides abutment wall bottom sets the longeron (42) for consolidating be integrated therewith, carrying knot of the longeron (42) as arch wall secondary lining (40)
Structure；Bottom plate (41) is set in tunnel bottom surface between two side girders (42), bottom plate (41) transverse ends are consolidated with two side girders (42), longeron
(42) by setting lateral sulcus (32c) in bottom plate (41) lower edge on the inside of hole；The drainage system includes arch wall scope drainage system and tunnel
Bottom drainage system, arch wall scope drainage system, tunnel bottom drainage system are connected with lateral sulcus (32c).
2. the external dewatering type lining cutting of buried lateral sulcus and its drainage system as claimed in claim 1, it is characterized in that：The arch wall model
Enclosing drainage system includes circle draining blind pipe (31a) and abutment wall tapping pipe (31b), and circle draining blind pipe (31b) is along tunnel excavation
Direction interval is laid between non-woven geotextile (20a) and splash guard (20b) and is introduced directly into abutment wall lower part through longeron (42)
In lateral sulcus (32c)；The abutment wall tapping pipe (31b) is laid in longeron (42) along tunnel excavation direction interval, and one end, which is stretched into, encloses
Rock certain length, the other end are introduced directly into lateral sulcus (32c), with drainage abutment wall scope underground water and pressure release.
3. the external dewatering type lining cutting of buried lateral sulcus and its drainage system as claimed in claim 1, it is characterized in that：The tunnel bottom row
Water system includes tunnel bottom longitudinal direction french drain (32a) and tunnel bottom tapping pipe (32b), and tunnel bottom longitudinal direction french drain (32a) is arranged under bottom plate (41)
By lateral sulcus (32c) place, to collect simultaneously drainage tunnel bottom underground water；Tunnel bottom tapping pipe (32b) is along tunnel excavation direction interval cloth
In lateral sulcus (32c) furrow bank, tunnel bottom longitudinal direction french drain is stretched into one end, and the other end is introduced in lateral sulcus (32c), with ejectment tunnel bottom longitudinal direction
French drain charge for remittance.
4. the external dewatering type lining cutting of new buried lateral sulcus and its drainage system as claimed in claim 1, it is characterized in that：It is described vertical
Beam (42) bottom sets screed-coat (11), and bottom plate (41) bottom sets the second screed-coat (12).
5. the external dewatering type lining cutting of new buried lateral sulcus and its drainage system as claimed in claim 1, it is characterized in that：The arch
Wall scope waterproof layer (20), between arch wall preliminary bracing (10) structure and arch wall secondary liner structure (40), including internal layer
Geotextiles (20a) and outer layer splash guard (20b).
6. the external dewatering type lining cutting of new buried lateral sulcus and its drainage system as claimed in claim 1, it is characterized in that：The arch
Wall preliminary bracing structure (10) includes the arch wall shotcrete layer (10a) of covering arch wall country rock and along arch wall quincuncial arrangement
Arch wall system anchor bolt (10c).In the arch wall shotcrete layer (10a) arch wall steelframe is laid along tunnel excavation direction interval
(10b), arch wall shotcrete layer (10a) is interior to add bar-mat reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711438447.7A CN108005688A (en) | 2017-12-27 | 2017-12-27 | The external dewatering type lining cutting of buried lateral sulcus and its drainage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711438447.7A CN108005688A (en) | 2017-12-27 | 2017-12-27 | The external dewatering type lining cutting of buried lateral sulcus and its drainage system |
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| CN108005688A true CN108005688A (en) | 2018-05-08 |
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| CN201711438447.7A Pending CN108005688A (en) | 2017-12-27 | 2017-12-27 | The external dewatering type lining cutting of buried lateral sulcus and its drainage system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519192A (en) * | 2019-01-23 | 2019-03-26 | 四川省交通运输厅公路规划勘察设计研究院 | Store up drainage pressure-reducing construction and the tunnel structure across soft rock section in tunnel |
| CN113847091A (en) * | 2021-08-27 | 2021-12-28 | 中铁二院工程集团有限责任公司 | A water-rich section tunnel bottom drainage and pressure reduction system |
| CN114483082A (en) * | 2022-01-26 | 2022-05-13 | 华设设计集团股份有限公司 | Tunnel sewage interception and drainage prevention structure for downward-penetrating refuse landfill and construction method thereof |
| CN116163803A (en) * | 2022-12-12 | 2023-05-26 | 中铁七局集团有限公司 | Tunnel open cut tunnel waterproof and drainage structure |
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| CN109519192A (en) * | 2019-01-23 | 2019-03-26 | 四川省交通运输厅公路规划勘察设计研究院 | Store up drainage pressure-reducing construction and the tunnel structure across soft rock section in tunnel |
| CN109519192B (en) * | 2019-01-23 | 2023-10-10 | 四川省公路规划勘察设计研究院有限公司 | Tunnel storage, drainage and pressure relief structure and tunnel structure across soft rock sections |
| CN113847091A (en) * | 2021-08-27 | 2021-12-28 | 中铁二院工程集团有限责任公司 | A water-rich section tunnel bottom drainage and pressure reduction system |
| CN114483082A (en) * | 2022-01-26 | 2022-05-13 | 华设设计集团股份有限公司 | Tunnel sewage interception and drainage prevention structure for downward-penetrating refuse landfill and construction method thereof |
| CN114483082B (en) * | 2022-01-26 | 2024-09-24 | 华设设计集团股份有限公司 | A tunnel sewage interception and drainage structure passing under a landfill and a construction method thereof |
| CN116163803A (en) * | 2022-12-12 | 2023-05-26 | 中铁七局集团有限公司 | Tunnel open cut tunnel waterproof and drainage structure |
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Application publication date: 20180508 |