CN109958452A - A kind of tunnel exit slips the body control method that collapses - Google Patents
A kind of tunnel exit slips the body control method that collapses Download PDFInfo
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- CN109958452A CN109958452A CN201910192023.XA CN201910192023A CN109958452A CN 109958452 A CN109958452 A CN 109958452A CN 201910192023 A CN201910192023 A CN 201910192023A CN 109958452 A CN109958452 A CN 109958452A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 10
- 230000005641 tunneling Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 36
- 239000004567 concrete Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims description 3
- 241000533845 Enterolobium cyclocarpum Species 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 1
- 230000008439 repair process Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- 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
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel exits to slip the body control method that collapses, its method is the following steps are included: A, traffic lead and change: widening after approved to original road, operation area enclosing closed operation area, upstream and downstream are provided with security warning speed(-)limit sign and facility, are equipped with the measures such as special messenger directs traffic.21 Φ 2.2m friction piles are arranged in the present invention, increase stake top crown beam, Reinforced Concrete Retaining Walls structure side slope carries out gear shield, ensure to slip the body that collapses integrally to consolidate, after abutment platform, platform side increases fender post+crown beam, form three face building enclosures, ensure that Foundation Pit of Abutment excavates safety, hole uses the advanced pre-reinforcement of horizontal jet grouting stake, it is oriented to wall+shield and encircles method tunneling into hole, ensure into hole safety, reasonably adjust through chainage, ensure safety of appearing, adjust light and shade boundary mileage, outlet forms building enclosure using pile foundation open cut tunnel portal, ensure later period railroad embankment safety, barricade side slope uses arched framework slope protection revetment, ensure stability of slope.
Description
Technical field
The present invention relates to technical field of tunnel construction, specially a kind of tunnel exit slips the body control method that collapses.
Background technique
Tunnel is the engineering works being embedded in stratum, is a kind of form of human use's underground space.Tunnel can divide
For traffic tunnel, Hydraulic Tunnel, municipal tunnel, mining tunnel, the structure in tunnel includes main building object and auxiliary device two
Point, main building object is made of barrel and portal, and auxiliary device includes that refuge chamber, fire fighting device, emergency communication and guarded drainage are set
It applies, there are also special ventilation and lighting apparatus, tunnels in the construction process, often will appear tunnel exit and slip the body that collapses for major long tunnel
Phenomenon occurs, if it not being prevented and being administered, the safety in tunnel will be seriously threatened, for this purpose, it is proposed that one
Kind tunnel exit slips the body control method that collapses.
Summary of the invention
The purpose of the present invention is to provide a kind of tunnel exits to slip the body control method that collapses, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of tunnel exit slips the body control method that collapses, side
Method the following steps are included:
A, traffic, which is led, changes: widening after approved to original road, operation area enclosing closed operation area, upstream and downstream setting
Security warning speed(-)limit sign and facility are equipped with special messenger and direct traffic equal measures, it is ensured that construction period the coast is clear, traffic
Safe passing；
B, it cuts draining: intercepting water to slipping body crack of collapsing and taking, drains the mode combined and carry out waterproof, surface cracks take filling
Slurry sealing, prevents rainwater from immersing, and hole slips to collapse and slips the line peripheral hardware armored concrete that collapses and intercept water gutter, and the excessively steep section in part sets chute,
Highway lateral sulcus carries out restoration and reconstruction after the completion of Retaining wall, it is ensured that draining is unobstructed；
C, it slips body reinforcing of collapsing: taking mound back-pressure, reinforced concrete structure supporting and retaining system, grouts the measures such as slope protection progress Synthetic
Reason；
D, builder's road and job platform → perform platform side Φ 1.8m fender post abutment and building enclosure: are built (containing crown beam)
→ performing platform side Φ 1.25m fender post → performs side platform Φ 1.25m pile foundation → backfilling of earthwork → builder's road and is trimmed to hole
It is oriented to wall.
It preferably, include gutter excavation and gutter construction in the step B, and gutter excavates the following steps are included: 1. surveying
Measure unwrapping wire: surveyor requires according to construction drawing, releases the excavation contour line of gutter；2. gutter uses hand excavation, by measurement
Contour line and cross dimensions are excavated, are modified；3. operating personnel hangs safety rope when excavating, special messenger commands nurse, forbids straight
It is access to spoir under slope；4. gutter construction should avoid raining working, wet and slippery fall is avoided；5. after excavating, first removing vegetation, pine
Soil, substrate repairing is smooth, and report quality inspection engineer after the assay was approved, can carry out next procedure construction；Gutter construction includes following
Step: 1. tamping ditch substrate with small-sized rammed earth machinery before construction, and 30cm thickness 3:7 cushion lime, laying is arranged in bottom of trench and periphery
EVA splash guard prevents substrate differential settlement from causing gutter concrete cracking；2. gutter selects I type, III type according to terrain slope
Intercepting ditch, bottom of trench connect with highway lateral sulcus, it is ensured that draining is smooth, chute is set when longitudinal slope is excessively steep, bottom of trench sets energy dissipation tank.
Preferably, the every 10m of the gutter that intercepts water is a cast-in-place production unit, expansion joint is set between every two unit together, seam
Wide 2cm, expansion joint is using water expandable waterstop waterproof and is placed in the middle part of gutter concrete bodies, and face uses 30mm near water at expansion joint
Thick M10 cement mortar closing, remaining is filled closely knit using pitch wood wool board.
Preferably, in the step C include that slope foot bankets back-pressure and slope foot retaining structure, and slope foot back-pressure of banketing is slope foot
Bottom takes rammer to banket stone back-pressure in friction pile boundary of works area, is highly 1~1.5m, and placement in layers is simultaneously compacted, meanwhile, friction pile
And section construction is taken in crown beam construction, closes in time, crown beam, barricade are divided into 6 construction sections (construction joint at 5)；Slope foot branch
Gear structure uses 21 Φ 2.2m cast-in-situ bored piles the following steps are included: 1. slipping in range of collapsing slope foot, pile center spacing 4m, and stake is long
10~12m, bored concrete pile use rotary digging drilled as holes, C40 armored concrete；2. stake top sets crown beam, high * wide is 2m*2.2m, in crown beam
Portion uses C35 Reinforced Concrete Retaining Walls, is highly 5.5m, upper width 0.825m, lower width 2.2m, to slipping turned-down edge slope
Carry out gear shield.
Preferably, the following steps are included: 12 Φ 1.25m cast-in-situ bored piles, stake are 1. arranged after abutment platform in the step D
Long 26m/ root, C30 pile foundation concrete, stake top set crown beam as 1.45m*2.4m, stake after platform are linked to be entirety, it is ensured that steady into hole side slope
It is fixed；2. 4 Φ 1.8m fender posts, the long 25m/ root of stake are respectively arranged in abutment two sides, pile center's spacing is 2.6m, and stake top sets 1.5m*2m
Crown beam, fender post also serve as cut-and-cover tunnel basis, and open cut tunnel joint bar is reserved on top when crown beam performs, and are tunnel exit tunneling into hole and bridge
Platform foundation excavation provides blocking effect；3. successively ramming the stone that bankets on the left of the route builds builder's road to hole operation platform, just
Road width is 6m, a length of 120m, head fall 19%, and hole operation platform size is not less than 10m × 12m, it is ensured that plant machinery
Operating radius, sidewalk, which is built, firmly avoids the side of brush from disturbing existing side slope.
Compared with prior art, beneficial effects of the present invention are as follows:
21 Φ 2.2m friction piles are arranged in the present invention, increase stake top crown beam, Reinforced Concrete Retaining Walls structure side slope carries out
Gear shield, it is ensured that slip the body that collapses and integrally consolidate, after abutment platform, platform side increase fender post+crown beam, form three face building enclosures, it is ensured that
Foundation Pit of Abutment excavates safety, and hole uses the advanced pre-reinforcement of horizontal jet grouting stake, and guiding wall+shield encircles method tunneling into hole, it is ensured that into hole
Safety, reasonably adjusts through chainage, it is ensured that safety of appearing, adjustment light and shade boundary mileage, outlet is enclosed using the formation of pile foundation open cut tunnel portal
Protection structure, it is ensured that later period railroad embankment safety, barricade side slope use arched framework slope protection revetment, it is ensured that stability of slope.
Detailed description of the invention
Fig. 1 is the method for the present invention flow diagram；
Fig. 2 is I type gutter sectional schematic diagram of the invention；
Fig. 3 is III type gutter sectional schematic diagram of the invention；
Fig. 4 is that crown beam of the present invention and Retaining wall section divide schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of tunnel exit slips the body control method that collapses, method the following steps are included:
A, traffic, which is led, changes: widening after approved to original road, operation area enclosing closed operation area, upstream and downstream setting
Security warning speed(-)limit sign and facility are equipped with special messenger and direct traffic equal measures, it is ensured that construction period the coast is clear, traffic
Safe passing；
B, it cuts draining: intercepting water to slipping body crack of collapsing and taking, drains the mode combined and carry out waterproof, surface cracks take filling
Slurry sealing, prevents rainwater from immersing, and hole slips to collapse and slips the line peripheral hardware armored concrete that collapses and intercept water gutter, and the excessively steep section in part sets chute,
Highway lateral sulcus carries out restoration and reconstruction after the completion of Retaining wall, it is ensured that draining is unobstructed；
C, it slips body reinforcing of collapsing: taking mound back-pressure, reinforced concrete structure supporting and retaining system, grouts the measures such as slope protection progress Synthetic
Reason；
D, builder's road and job platform → perform platform side Φ 1.8m fender post abutment and building enclosure: are built (containing crown beam)
→ performing platform side Φ 1.25m fender post → performs side platform Φ 1.25m pile foundation → backfilling of earthwork → builder's road and is trimmed to hole
It is oriented to wall, 21 Φ 2.2m friction piles are set, increase stake top crown beam, Reinforced Concrete Retaining Walls structure side slope carry out gear shield, really
Guarantor slips the body that collapses and integrally consolidates, and after abutment platform, platform side increase fender post+crown beam, forms three face building enclosures, it is ensured that Foundation Pit of Abutment
Safety is excavated, hole uses the advanced pre-reinforcement of horizontal jet grouting stake, and guiding wall+shield encircles method tunneling into hole, it is ensured that into hole safety, rationally
Adjust through chainage, it is ensured that safety of appearing, adjustment light and shade boundary mileage, outlet form building enclosure using pile foundation open cut tunnel portal, really
Later period railroad embankment safety is protected, barricade side slope uses arched framework slope protection revetment, it is ensured that stability of slope.
It include that gutter excavates and gutter construction, and gutter excavates the following steps are included: 1. surveying setting-out: measurement in step B
Member requires according to construction drawing, releases the excavation contour line of gutter；2. gutter uses hand excavation, by measurement contour line and section
Size is excavated, is modified；3. operating personnel hangs safety rope when excavating, special messenger commands nurse, forbids directly toward spoir under slope；
4. gutter construction should avoid raining working, wet and slippery fall is avoided；5. after excavating, first removing vegetation, loosening the soil, substrate is repaired flat
Whole, report quality inspection engineer after the assay was approved, can carry out next procedure construction；1. gutter construction is the following steps are included: construct before
Ditch substrate is tamped with small-sized rammed earth machinery, bottom of trench and periphery are arranged 30cm thickness 3:7 cushion lime, lay EVA splash guard, prevent
Substrate differential settlement causes gutter concrete cracking；2. gutter according to terrain slope select I type, III type intercepting ditch, bottom of trench with
Highway lateral sulcus connects, it is ensured that draining is smooth, chute is set when longitudinal slope is excessively steep, bottom of trench sets energy dissipation tank.
The every 10m of the gutter that intercepts water is a cast-in-place production unit, and expansion joint is set between every two unit together, slit width 2cm, expansion joint
It using water expandable waterstop waterproof and is placed in the middle part of gutter concrete bodies, face uses 30mm thickness M10 cement bonded sand near water at expansion joint
Slurry closing, remaining is filled closely knit using pitch wood wool board.
In step C include that slope foot bankets back-pressure and slope foot retaining structure, and slope foot back-pressure of banketing is slope foot antiskid pile driving construction
Bottom takes rammer to banket stone back-pressure in range, is highly 1~1.5m, and placement in layers is simultaneously compacted, meanwhile, friction pile and crown beam construction
Section construction is taken, closes in time, crown beam, barricade is divided into 6 construction sections (construction joint at 5)；Slope foot retaining structure includes
Following steps: it 1. slips slope foot in range of collapsing and uses 21 Φ 2.2m cast-in-situ bored piles, pile center spacing 4m, the long 10~12m of stake are filled
It infuses stake and uses rotary digging drilled as holes, C40 armored concrete；2. stake top sets crown beam, high * wide is 2m*2.2m, and crown beam top uses C35
Reinforced Concrete Retaining Walls are highly 5.5m, upper width 0.825m, lower width 2.2m, carry out gear shield to turned-down edge slope is slipped.
The following steps are included: 12 Φ 1.25m cast-in-situ bored piles are 1. arranged after abutment platform in step D, the long 26m/ root of stake,
C30 pile foundation concrete, stake top set crown beam as 1.45m*2.4m, stake after platform are linked to be entirety, it is ensured that into hole stability of slope；2. abutment
4 Φ 1.8m fender posts, the long 25m/ root of stake are respectively arranged in two sides, and pile center's spacing is 2.6m, and stake top sets 1.5m*2m crown beam, goes along with sb. to guard him
Stake also serves as cut-and-cover tunnel basis, and open cut tunnel joint bar is reserved on top when crown beam performs, and opens for tunnel exit tunneling into hole and abutment foundation
It digs and blocking effect is provided；3. successively ramming the stone that bankets on the left of route builds builder's road to hole operation platform, sidewalk width is 6m,
A length of 120m, head fall 19%, hole operation platform size are not less than 10m × 12m, it is ensured that plant machinery operating radius,
Sidewalk, which is built, firmly avoids the side of brush from disturbing existing side slope.
In use, 21 Φ 2.2m friction piles are arranged along the body slope foot that collapses is slipped, increase stake top crown beam, Reinforced Concrete Retaining Walls knot
Structure side slope carries out gear shield, it is ensured that slips the body that collapses and integrally consolidates, after abutment platform, platform side increase fender post+crown beam, forms three faces and enclose
Protection structure, it is ensured that Foundation Pit of Abutment excavates safety, and hole uses the advanced pre-reinforcement of horizontal jet grouting stake, guiding wall+shield encircle method tunneling into
Hole, it is ensured that into hole safety, reasonably adjust through chainage, it is ensured that safety of appearing, adjustment light and shade boundary mileage, outlet are bright using pile foundation
Portal forms building enclosure, it is ensured that later period railroad embankment safety, barricade side slope use arched framework slope protection revetment, it is ensured that side slope is steady
It is fixed, it by reinforcing above and supporting and retaining system measure, slips the body that collapses generally in safety and stability state, is lower fore-and-aft gangway platform and exit into hole
Construction is laid a good foundation.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of tunnel exit slips the body control method that collapses, it is characterised in that: its method the following steps are included:
A, traffic, which is led, changes: widening after approved to original road, operation area enclosing closed operation area, upstream and downstream is provided with peace
Full warning speed(-)limit sign and facility are equipped with the measures such as special messenger directs traffic, it is ensured that construction period the coast is clear, traffic safety
It is current；
B, it cuts draining: intercepting water to slipping body crack of collapsing and taking, drains the mode combined and carry out waterproof, surface cracks take grouting close
Envelope, prevents rainwater from immersing, and hole slips to collapse and slips the line peripheral hardware armored concrete that collapses and intercept water gutter, and the excessively steep section in part sets chute, highway
Lateral sulcus carries out restoration and reconstruction after the completion of Retaining wall, it is ensured that draining is unobstructed；
C, it slips body reinforcing of collapsing: taking mound back-pressure, reinforced concrete structure supporting and retaining system, grouts the measures such as slope protection progress comprehensive treatment；
D, abutment and building enclosure: builder's road and job platform → performing platform side Φ 1.8m fender post (containing crown beam) → are built and is applied
It does platform side Φ 1.25m fender post → perform side platform Φ 1.25m pile foundation → backfilling of earthwork → builder's road and is trimmed to hole guiding
Wall.
2. a kind of tunnel exit according to claim 1 slips the body control method that collapses, it is characterised in that: wrapped in the step B
Include gutter to excavate and gutter construction, and gutter excavates the following steps are included: 1. surveying setting-out: surveyor wants according to construction drawing
It asks, releases the excavation contour line of gutter；2. gutter uses hand excavation, is excavated, repaired by measurement contour line and cross dimensions
It is whole；3. operating personnel hangs safety rope when excavating, special messenger commands nurse, forbids directly toward spoir under slope；4. gutter construction should be kept away
Raining working is opened, wet and slippery fall is avoided；5. after excavating, first removing vegetation, loosening the soil, substrate repairs smooth, report quality inspection engineering
Teacher after the assay was approved, can carry out next procedure construction；Gutter construction is the following steps are included: 1. mechanical with small-sized rammed earth before construction
Ditch substrate is tamped, bottom of trench and periphery are arranged 30cm thickness 3:7 cushion lime, lay EVA splash guard, prevent substrate differential settlement
Cause gutter concrete cracking；2. gutter selects I type, III type intercepting ditch according to terrain slope, bottom of trench connects with highway lateral sulcus, really
It is smooth to protect draining, chute is set when longitudinal slope is excessively steep, bottom of trench sets energy dissipation tank.
3. a kind of tunnel exit according to claim 2 slips the body control method that collapses, it is characterised in that: the gutter that intercepts water is every
10m is a cast-in-place production unit, expansion joint is set between every two unit together, slit width 2cm, expansion joint uses water expandable waterstop
It waterproof and is placed in the middle part of gutter concrete bodies, face is closed using 30mm thickness M10 cement mortar near water at expansion joint, remaining is using pitch
Wood wool board filling is closely knit.
4. a kind of tunnel exit according to claim 1 slips the body control method that collapses, it is characterised in that: wrapped in the step C
It includes slope foot to banket back-pressure and slope foot retaining structure, and slope foot back-pressure of banketing is that bottom takes rammer to fill out in slope foot friction pile boundary of works area
Native stone back-pressure is highly 1~1.5m, and placement in layers is simultaneously compacted, meanwhile, section construction is taken in friction pile and crown beam construction, in time
Closing, is divided into 6 construction sections (construction joint at 5) for crown beam, barricade；1. slope foot retaining structure is the following steps are included: slip the model that collapses
It encloses interior slope foot and uses 21 Φ 2.2m cast-in-situ bored piles, pile center spacing 4m, the long 10~12m of stake, bored concrete pile is drilled to using rotary digging
Hole, C40 armored concrete；2. stake top sets crown beam, high * wide is 2m*2.2m, and crown beam top uses C35 Reinforced Concrete Retaining Walls, high
Degree is 5.5m, upper width 0.825m, lower width 2.2m, carries out gear shield to turned-down edge slope is slipped.
5. a kind of tunnel exit according to claim 1 slips the body control method that collapses, it is characterised in that: wrapped in the step D
It includes following steps: 1. 12 Φ 1.25m cast-in-situ bored piles, the long 26m/ root of stake, C30 pile foundation concrete, stake top is set after abutment platform
If crown beam is 1.45m*2.4m, stake after platform is linked to be entirety, it is ensured that into hole stability of slope；2. 4 Φ are respectively arranged in abutment two sides
1.8m fender post, the long 25m/ root of stake, pile center's spacing are 2.6m, and stake top sets 1.5m*2m crown beam, and fender post also serves as cut-and-cover tunnel base
Plinth, open cut tunnel joint bar is reserved on top when crown beam performs, and provides blocking effect into hole and abutment foundation excavation for tunnel exit tunneling；③
The stone that bankets successively is rammed on the left of route and builds builder's road to hole operation platform, and sidewalk width is 6m, a length of 120m, head fall
It is 19%, hole operation platform size is not less than 10m × 12m, it is ensured that plant machinery operating radius, sidewalk build firmly avoid brushing
Side disturbs existing side slope.
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| CN201910192023.XA CN109958452A (en) | 2019-03-14 | 2019-03-14 | A kind of tunnel exit slips the body control method that collapses |
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| CN201910192023.XA CN109958452A (en) | 2019-03-14 | 2019-03-14 | A kind of tunnel exit slips the body control method that collapses |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203308470U (en) * | 2013-05-28 | 2013-11-27 | 山西省交通科学研究院 | Cover arch structure suitable for large-section unsymmetrical loading tunnel portal section |
| KR20140123317A (en) * | 2013-04-12 | 2014-10-22 | 한국철도기술연구원 | Hood structure and system for reducing tunnel micro pressure wave using the same |
| CN104153789A (en) * | 2014-08-21 | 2014-11-19 | 铁道第三勘察设计院集团有限公司 | High-speed railway separation type tunnel-bridge concatenation tunnel portal |
| CN204140086U (en) * | 2014-08-21 | 2015-02-04 | 铁道第三勘察设计院集团有限公司 | High-speed railway separate type tunnel bridge serial connection portal |
| CN104389628A (en) * | 2014-11-21 | 2015-03-04 | 山西省交通科学研究院 | Landslide section tunnel reinforcing device and reinforcing construction method |
| CN204283438U (en) * | 2014-11-28 | 2015-04-22 | 中铁第四勘察设计院集团有限公司 | Portal supporting and protection structure |
| CN204419195U (en) * | 2014-12-29 | 2015-06-24 | 山西省交通科学研究院 | A kind of supporting and protection structure pattern being applicable to tunnel portal section |
| CN105840207A (en) * | 2016-03-24 | 2016-08-10 | 杭州江润科技有限公司 | Cross shallow buried bias pressure loose accumulation body large-span tunnel comprehensive entrance structure construction method |
| CN106968690A (en) * | 2017-04-20 | 2017-07-21 | 中冶建工集团有限公司 | The method for tunnel construction for soil property of caving in |
| CN207598248U (en) * | 2017-12-11 | 2018-07-10 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of Mountainous high speed railway tunnel protects bridge open-cut tunnel structure |
-
2019
- 2019-03-14 CN CN201910192023.XA patent/CN109958452A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140123317A (en) * | 2013-04-12 | 2014-10-22 | 한국철도기술연구원 | Hood structure and system for reducing tunnel micro pressure wave using the same |
| CN203308470U (en) * | 2013-05-28 | 2013-11-27 | 山西省交通科学研究院 | Cover arch structure suitable for large-section unsymmetrical loading tunnel portal section |
| CN104153789A (en) * | 2014-08-21 | 2014-11-19 | 铁道第三勘察设计院集团有限公司 | High-speed railway separation type tunnel-bridge concatenation tunnel portal |
| CN204140086U (en) * | 2014-08-21 | 2015-02-04 | 铁道第三勘察设计院集团有限公司 | High-speed railway separate type tunnel bridge serial connection portal |
| CN104389628A (en) * | 2014-11-21 | 2015-03-04 | 山西省交通科学研究院 | Landslide section tunnel reinforcing device and reinforcing construction method |
| CN204283438U (en) * | 2014-11-28 | 2015-04-22 | 中铁第四勘察设计院集团有限公司 | Portal supporting and protection structure |
| CN204419195U (en) * | 2014-12-29 | 2015-06-24 | 山西省交通科学研究院 | A kind of supporting and protection structure pattern being applicable to tunnel portal section |
| CN105840207A (en) * | 2016-03-24 | 2016-08-10 | 杭州江润科技有限公司 | Cross shallow buried bias pressure loose accumulation body large-span tunnel comprehensive entrance structure construction method |
| CN106968690A (en) * | 2017-04-20 | 2017-07-21 | 中冶建工集团有限公司 | The method for tunnel construction for soil property of caving in |
| CN207598248U (en) * | 2017-12-11 | 2018-07-10 | 中铁二院成都勘察设计研究院有限责任公司 | A kind of Mountainous high speed railway tunnel protects bridge open-cut tunnel structure |
Non-Patent Citations (3)
| Title |
|---|
| 李冬生: "隧道洞口风积砂质新黄土地层溜塌综合治理", 《中国高新科技》 * |
| 许占良: "长昆客专湖南段隧道洞口设计研究", 《隧道建设》 * |
| 齐喜锋: "坪桥2号隧道进口隧道出洞施工方案探讨", 《低碳世界》 * |
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Address after: 710065 No. two, No. 69, Jin Industry Zone, Xi'an hi tech Zone, Shaanxi Applicant after: Railway Tenth Group Northwest Engineering Address before: 710065 No. 69, No. 2 Road, Cotton Industry, Xi'an High-tech Zone, Shaanxi Province Applicant before: Railway Tenth Group Northwest Engineering |
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