CN107905809A - Diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure and separate type drainage system - Google Patents
Diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure and separate type drainage system Download PDFInfo
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- CN107905809A CN107905809A CN201711438445.8A CN201711438445A CN107905809A CN 107905809 A CN107905809 A CN 107905809A CN 201711438445 A CN201711438445 A CN 201711438445A CN 107905809 A CN107905809 A CN 107905809A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000010079 rubber tapping Methods 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 21
- 238000009412 basement excavation Methods 0.000 claims description 19
- 239000011435 rock Substances 0.000 claims description 13
- 239000011378 shotcrete Substances 0.000 claims description 7
- 239000004746 geotextile Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000001727 in vivo Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 2
- 230000006378 damage Effects 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 7
- 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
- 239000003673 groundwater Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 4
- 230000001932 seasonal effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000029142 excretion Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004062 sedimentation Methods 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
- 239000004566 building material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion 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
- 238000012407 engineering method 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
- 239000007921 spray Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/04—Lining with building materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
Diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure and separate type drainage system, 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, ensure the stabilization and security of constructing tunnel and operation, and prevent in operation railway roadbed ponding polluted underground water in tunnel.Arch wall secondary liner structure both sides abutment wall bottom sets the longeron consolidated therewith, and longeron is the rectangular section with top longitudinal direction cavity, lower part longitudinal direction cavity.Longeron is not only as arch wall preliminary bracing structure and the bearing structure of arch wall secondary liner structure, but also is used as tunnel longitudinal drainage passage.Tunnel bottom is set between longeron fills out basis by changing of forming of basic top layer, subfoundation.Internal excretory system introduces railway roadbed ponding in tunnel in the cavity of top longitudinal direction, and external excretory system introduces arch wall scope drainage system and tunnel bottom drainage system charge for remittance in the cavity of lower part longitudinal direction.
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 or
Underground water is constructed by the tunnel lining structure and its waterproof and water drainage system of the irregular location of seasonal effect or karst area.
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 there is provided a kind of diplopore hollow, rectangular section load bearing beam road cutting type protecting arch
Tunnel lining structure and separate type drainage system, by changing to conventional tunnel lining cutting tunnel bottom structure form and drainage system
Make, change tunnel bottom structure stress form and drainage system, eliminate effect of the underground water to tunnel-liner polycrystalline substance, effectively solution
Certainly karst or underground water develop the problem of inverted arch floating deformation of regional tunnel or tunnel bottom structure cracking destruction, it is ensured that constructing tunnel
With the stabilization and security of operation, and railway roadbed ponding polluted underground water in tunnel is prevented in operation.
The technical solution adopted by the present invention to solve the technical problems is as follows：
The diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure of the present invention and separate type draining system
System, including arch wall preliminary bracing structure, arch wall secondary liner structure and arch wall scope waterproof layer, further include drainage system, it is special
Sign is：The arch wall secondary liner structure both sides abutment wall bottom sets the longeron consolidated therewith, and longeron is empty with top longitudinal direction
The rectangular section of chamber, lower part longitudinal direction cavity；The longeron is both as arch wall preliminary bracing structure and arch wall secondary liner structure
Bearing structure, and it is used as tunnel longitudinal drainage passage；Tunnel bottom sets and is made of basic top layer, subfoundation between the longeron
Change and fill out basis；The drainage system includes internal excretory system and external excretory system, and internal excretory system is by railway roadbed in tunnel
Ponding is introduced in the cavity of top longitudinal direction, and external excretory system introduces arch wall scope drainage system and tunnel bottom drainage system charge for remittance
In the cavity of lower part longitudinal direction.
The basis top layer is not less than the graded broken stone filling technology of 40cm by thickness, and subfoundation is filled by A, B group filler.
The arch wall scope drainage system includes circle draining blind pipe and abutment wall tapping pipe, the circle draining blind pipe edge
Tunnel excavation direction interval is laid between non-woven geotextile and splash guard and is introduced directly into lower part longitudinal direction cavity in abutment wall lower part
In；The abutment wall tapping pipe is laid along tunnel excavation direction interval, and country rock certain length is stretched into one end, and the other end introduces lower part
In longitudinal cavity, with drainage abutment wall scope underground water and pressure release.
Tunnel bottom drainage system includes drainage blanket and drainage blanket tapping pipe, and the drainage blanket is located at subfoundation lower part,
Filled using medium coarse sand of the thickness not less than 15cm, to collect tunnel bottom underground water and prevent underground water from washing away sapping tunnel bottom country rock；
The drainage blanket tapping pipe is laid in longeron along tunnel excavation direction interval, by the underground water ejectment collected in drainage blanket extremely
In the cavity of lower part longitudinal direction.
The excretory system in vivo includes railway roadbed ponding tapping pipe and basic top layer tapping pipe, and the basis top layer sluices
Pipe is laid in longeron along tunnel excavation direction interval, by possible ponding ejectment in basic top layer into top longitudinal direction cavity；
The railway roadbed ponding tapping pipe is laid in longeron along tunnel excavation direction interval, and the ejectment of railway roadbed ponding is empty to top longitudinal direction
In chamber.
The beneficial effects are mainly as follows following aspects：
1st, tunnel bottom is not provided with structure sheaf and excavates basic horizontal, overcomes traditional lining types inverted arch foundation excavation curvature
The problems such as not easy to control, excavate operation and be more convenient.The liner structure that traditional tunnel bottom is inverted arch form is compared to, saves building
Material, effectively reduces engineering construction investment；
2nd, tunnel bottom is not provided with structure sheaf, only sets to change and fills out basis.It is not required to apply Concrete Filled body thereon, effectively avoids
Traditional bent wall band inverted arch lining cutting is destroyed since underground water enters to extrude between inverted arch and inverted arch blind by inverted arch construction joint
Obturator, causes track structure to destroy；
3rd, tunnel bottom both sides set bearing structure of the hollow longeron as arch wall secondary lining, and bending stiffness can be greatly improved.
Weak surrounding rock location is locally lain in for tunnel side wall bottom, can effectively control arch wall supporting construction sedimentation and deformation；To karst area
Tunnel, can be effectively across the Karst Features (molten chamber, filling solution cavity, corroded breaking zone etc.) of certain size scope；
4th, longeron uses diplopore hollow, rectangular section, can save bricklaying first；Dong Nei roads are used as by the use of longeron upper cavity
Bed ponding drain passage, lower cavity realize in hole sewage and underground moisture from excretion as external ground water discharge passage,
It is contaminated to avoid underground water；It may replace in traditional underground water development Tunnel Engineering design and sluice using the liner structure form
Hole, average every kilometer of Tunnel Engineering can save project cost more than 10,000,000, and economic benefit is very notable；
5th, the separate type drainage system that the present invention is set, realizes sewage and underground moisture in hole and, from excretion, avoids underground
Water is contaminated；Drainability is stronger, can effectively drainage arch wall scope and tunnel bottom underground water, avoid traditional liner structure because of underground
Lining cutting structure crack destroys after water drainage difficulty or heavy rain season groundwater run off abruptly increase cause inverted arch.
The present invention changes tunnel bottom structure by transforming conventional tunnel lining cutting tunnel bottom structure form and drainage system
Stress form and drainage system, eliminate effect of the underground water to tunnel-liner polycrystalline substance, effectively solve karst or underground water hair
The problem of educating regional tunnel inverted arch floating deformation or tunnel bottom structure cracking destruction, it is ensured that constructing tunnel and the stabilization and peace of operation
Quan Xing, and prevent in operation railway roadbed ponding polluted underground water in tunnel.
Brief description of the drawings
This specification includes following two width attached drawing：
Fig. 1 is load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section of the present invention and separate type draining
System schematic；
Fig. 2 is the enlarged drawing of A parts in Fig. 1.
Component, toponym and corresponding mark are shown in figure：Top longitudinal direction cavity B1, lower part longitudinal direction cavity B2, arch wall
Preliminary bracing structure 10, arch wall shotcrete layer 10a, arch wall steelframe 10b, arch wall system anchor bolt 10c, screed-coat 11, arch wall
Scope waterproof layer 20, geotextiles 20a, splash guard 20b, tunnel bottom waterproof layer 21, circle draining blind pipe 31a, abutment wall tapping pipe 31b,
It is 31c, drainage blanket 32a, drainage blanket tapping pipe 32b, arch wall secondary liner structure 40, basis top layer 41b, subfoundation 41a, vertical
Beam 42.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
With reference to Fig. 1, load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section of the present invention and separate type row
Water system, including arch wall preliminary bracing structure 10, arch wall secondary liner structure 40 and arch wall scope waterproof layer 20, the row of further including
Water system 30.The 40 both sides abutment wall bottom of arch wall secondary liner structure sets the longeron 42 consolidated therewith, longeron 42 be with
The rectangular section of top longitudinal direction cavity B1, lower part longitudinal direction cavity B2.The longeron 42 both as arch wall preliminary bracing structure 10 with
The bearing structure of arch wall secondary liner structure 40, and it is used as tunnel longitudinal drainage passage.It is firm that bending resistance can be greatly improved in setting 42
Degree, locally lies in weak surrounding rock location for tunnel side wall bottom, can effectively control arch wall supporting construction sedimentation and deformation, and save
Bricklaying, can effectively across the Karst Features of certain size scope, (molten chamber, filling solution cavity, corrosion crush to karst area tunnel
Band etc.).The drainage system includes internal excretory system and external excretory system, and internal excretory system accumulates railway roadbed in tunnel
Water introduces top and indulges in each cavity B1, and external excretory system introduces arch wall scope drainage system and tunnel bottom drainage system charge for remittance
In the cavity B2 of lower part longitudinal direction.Railway roadbed ponding drain passage in hole, lower part longitudinal direction cavity are used as by the use of longeron top longitudinal direction cavity B1
B2 realizes that sewage and underground moisture from excretion, are contaminated to avoid underground water in hole as external ground water discharge passage.Adopt
Drain cavern in traditional underground water development Tunnel Engineering design, average every kilometer of Tunnel Engineering are may replace with the liner structure form
Project cost can be saved more than 10,000,000.
With reference to Fig. 1, described 42 tunnel bottoms of longeron are set fills out basis by changing of forming of basic top layer 41b, subfoundation 41a,
Without setting structure layer, basic top layer 41b can by thickness be not less than 40cm graded broken stone filling technology, subfoundation 41a can by A,
B group fillers fill.Basic horizontal is excavated at tunnel bottom, is overcome traditional lining types inverted arch foundation excavation curvature and is difficult to control and leads
Problem, excavates operation and is more convenient.Tunnel excavation amount can be reduced, construction material is saved, effectively reduce engineering construction investment.
Referring to Figures 1 and 2, the arch wall scope drainage system includes circle draining blind pipe 31a and abutment wall tapping pipe 31b,
The circle draining blind pipe 31a is laid between non-woven geotextile 20a and splash guard 20b and in side along tunnel excavation direction interval
Wall lower part is introduced directly into the cavity B2 of lower part longitudinal direction.The abutment wall tapping pipe 31b is laid along tunnel excavation direction interval, one end
Country rock certain length is stretched into, the other end is introduced into the cavity B2 of lower part longitudinal direction, with drainage abutment wall scope underground water and pressure release.
Referring to Figures 1 and 2, tunnel bottom drainage system includes drainage blanket 32a and drainage blanket tapping pipe 32b, the draining
Layer 32a is located at subfoundation 41a lower parts, is filled using medium coarse sand of the thickness not less than 15cm, to collect tunnel bottom underground water and prevent
Only underground water washes away sapping tunnel bottom country rock.The drainage blanket tapping pipe 32b is laid in longeron 42 along tunnel excavation direction interval
It is interior, by the underground water ejectment collected in drainage blanket 32a into lower part longitudinal direction cavity B2.
Referring to Figures 1 and 2, the excretory system in vivo includes railway roadbed ponding tapping pipe 33a and basic top layer tapping pipe
33b, the basis top layer tapping pipe 33b are laid in longeron 42 along tunnel excavation direction interval, by can in basic top layer 41b
The ponding ejectment of energy is into top longitudinal direction cavity B1.The railway roadbed ponding tapping pipe 33a is laid in along tunnel excavation direction interval
In longeron 42, by the ejectment of railway roadbed ponding into top longitudinal direction cavity B1.
Referring to Figures 1 and 2, tunnel bottom waterproof layer 21 is set between the basis top layer 41b and subfoundation 41a.The arch wall
Scope waterproof layer 20, between 10 structure of arch wall preliminary bracing and arch wall secondary liner structure 40, includes the geotextiles of internal layer
The splash guard 20b of 20a and outer layer.The arch wall preliminary bracing structure 10 includes the arch wall gunite concrete of covering arch wall country rock
The layer 10a and arch wall system anchor bolt 10c along arch wall quincuncial arrangement.Along tunnel excavation in the arch wall shotcrete layer 10a
Arch wall steelframe 10b is laid at direction interval, and bar-mat reinforcement is added in arch wall shotcrete layer 10a.
With reference to Fig. 1,42 bottom of longeron can set screed-coat 11.The top longitudinal direction cavity B1 of the longeron 42 and under
Portion longitudinal direction cavity B2 sectional dimensions can be adjusted according to draining and stress demand.
The above is the load bearing beam road cutting type protecting arched tunnel lining cutting in diplopore hollow, rectangular section of the present invention that explains through diagrams
Some principles of structure and separate type drainage system, be not intended to by the present invention be confined to shown in and the concrete structure and
In the scope of application, therefore every corresponding modification for being possible to be utilized and equivalent, belong to the apllied patent of the present invention
Scope.
Claims (9)
1. diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure and separate type drainage system, including at the beginning of arch wall
Phase supporting construction (10), arch wall secondary liner structure (40) and arch wall scope waterproof layer (20), further include drainage system (30), its
It is characterized in：Arch wall secondary liner structure (40) the both sides abutment wall bottom sets the longeron (42) consolidated therewith, and longeron (42) is
Rectangular section with top longitudinal direction cavity (B1), lower part longitudinal direction cavity (B2)；The longeron (42) is both used as arch wall branch at initial stage
The bearing structure of protection structure (10) and arch wall secondary liner structure (40), and it is used as tunnel longitudinal drainage passage；The longeron
(42) tunnel bottom is set between fills out basis by changing of forming of basic top layer (41b), subfoundation (41a)；The drainage system includes body
Railway roadbed ponding in tunnel is introduced top and indulged in each cavity (B1) by interior excretory system and external excretory system, internal excretory system,
External excretory system introduces arch wall scope drainage system and tunnel bottom drainage system charge for remittance in lower part longitudinal direction cavity (B2).
2. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：The basis top layer (41b) is not less than the graded broken stone filling technology of 40cm, subfoundation (41a) by thickness
Filled by A, B group filler.
3. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：The arch wall scope drainage system includes circle draining blind pipe (31a) and abutment wall tapping pipe (31b), institute
State circle draining blind pipe (31a) be laid in along tunnel excavation direction interval between non-woven geotextile (20a) and splash guard (20b) and in
Abutment wall lower part is introduced directly into lower part longitudinal direction cavity (B2)；The abutment wall tapping pipe (31b) is laid along tunnel excavation direction interval,
Country rock certain length is stretched into one end, and the other end is introduced into lower part longitudinal direction cavity (B2), with drainage abutment wall scope underground water and pressure release.
4. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：Tunnel bottom drainage system includes drainage blanket (32a) and drainage blanket tapping pipe (32b), the drainage blanket
(32a) is located at subfoundation (41a) lower part, is filled using medium coarse sand of the thickness not less than 15cm, to collect tunnel bottom underground water simultaneously
Prevent underground water from washing away sapping tunnel bottom country rock；The drainage blanket tapping pipe (32b) is laid in longeron along tunnel excavation direction interval
(42) in, by the underground water ejectment collected in drainage blanket (32a) into lower part longitudinal direction cavity (B2).
5. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：The excretory system in vivo includes railway roadbed ponding tapping pipe (33a) and basic top layer tapping pipe (33b),
The basis top layer tapping pipe (33b) is laid in longeron (42) along tunnel excavation direction interval, by can in basic top layer (41b)
The ponding ejectment of energy is into top longitudinal direction cavity (B1)；The railway roadbed ponding tapping pipe (33a) is along tunnel excavation direction interval cloth
In longeron (42), by the ejectment of railway roadbed ponding into top longitudinal direction cavity (B1).
6. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：Tunnel bottom waterproof layer (21) is set between the basis top layer (41b) and subfoundation (41a)；The arch wall
Scope waterproof layer (20) is located between arch wall preliminary bracing (10) structure and arch wall secondary liner structure (40), includes the soil of internal layer
The splash guard (20b) of work cloth (20a) and outer layer.
7. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：The arch wall preliminary bracing structure (10) includes the arch wall shotcrete layer of covering arch wall country rock
(10a) and the arch wall system anchor bolt (10c) along arch wall quincuncial arrangement.Along tunnel in the arch wall shotcrete layer (10a)
Excavate direction interval and lay arch wall steelframe (10b), bar-mat reinforcement is added in arch wall shotcrete layer (10a).
8. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：Longeron (42) bottom sets screed-coat (11).
9. load bearing beam road cutting type protecting arched tunnel liner structure in diplopore hollow, rectangular section as claimed in claim 1 and separate type row
Water system, it is characterized in that：The top longitudinal direction cavity (B1) and lower part longitudinal direction cavity (B2) sectional dimension of the longeron (42) can roots
Adjusted according to draining and stress demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711438445.8A CN107905809B (en) | 2017-12-27 | 2017-12-27 | Double-hole hollow rectangular section beam bearing cutting type arched tunnel lining structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711438445.8A CN107905809B (en) | 2017-12-27 | 2017-12-27 | Double-hole hollow rectangular section beam bearing cutting type arched tunnel lining structure |
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| CN107905809A true CN107905809A (en) | 2018-04-13 |
| CN107905809B CN107905809B (en) | 2024-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757027A (en) * | 2018-05-23 | 2018-11-06 | 中铁二院工程集团有限责任公司 | Multi-functional lobby water system in a kind of tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004324139A (en) * | 2003-04-23 | 2004-11-18 | Ando Corp | Construction method of tunnel timbering |
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| CN206386150U (en) * | 2016-12-16 | 2017-08-08 | 中铁二院工程集团有限责任公司 | A kind of Underground Subway Station draining and examination and repair system |
| CN208073499U (en) * | 2017-12-27 | 2018-11-09 | 中铁二院工程集团有限责任公司 | Diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure |
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| JP2004324139A (en) * | 2003-04-23 | 2004-11-18 | Ando Corp | Construction method of tunnel timbering |
| KR20110133370A (en) * | 2010-06-04 | 2011-12-12 | 주식회사 픽슨 | Underground tunnel having space for escaping emergency and constructing method thereof |
| CN203394584U (en) * | 2013-07-31 | 2014-01-15 | 中南大学 | Water drainage concealed pipe device applicable to collapsible loess tunnel |
| CN105863671A (en) * | 2016-06-12 | 2016-08-17 | 中铁二院工程集团有限责任公司 | Frame type low-position draining system tunnel lining structure |
| CN106089244A (en) * | 2016-06-12 | 2016-11-09 | 中铁二院工程集团有限责任公司 | Frame props up arched tunnel lining structure |
| CN206386134U (en) * | 2016-12-13 | 2017-08-08 | 中铁二院工程集团有限责任公司 | A kind of Underground Subway Station guarded drainage construction |
| CN206386150U (en) * | 2016-12-16 | 2017-08-08 | 中铁二院工程集团有限责任公司 | A kind of Underground Subway Station draining and examination and repair system |
| CN208073499U (en) * | 2017-12-27 | 2018-11-09 | 中铁二院工程集团有限责任公司 | Diplopore hollow, rectangular section load bearing beam road cutting type protecting arched tunnel liner structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108757027A (en) * | 2018-05-23 | 2018-11-06 | 中铁二院工程集团有限责任公司 | Multi-functional lobby water system in a kind of tunnel |
| CN108757027B (en) * | 2018-05-23 | 2023-11-21 | 中铁二院工程集团有限责任公司 | Multifunctional drainage system in tunnel |
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|---|---|
| CN107905809B (en) | 2024-01-19 |
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