CN103206219A - Holed excavation supporting structure for light and dark junction section of tunnel in bias pressure state and construction method - Google Patents
Holed excavation supporting structure for light and dark junction section of tunnel in bias pressure state and construction method Download PDFInfo
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- CN103206219A CN103206219A CN2013101616552A CN201310161655A CN103206219A CN 103206219 A CN103206219 A CN 103206219A CN 2013101616552 A CN2013101616552 A CN 2013101616552A CN 201310161655 A CN201310161655 A CN 201310161655A CN 103206219 A CN103206219 A CN 103206219A
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Abstract
The invention relates to a holed excavation supporting structure for a light and dark junction section of a tunnel in a bias pressure state and a construction method. In a supporting mode combining a bias pressure earth retaining wall and a cover arch, the unilateral bias pressure of the tunnel is balanced, thus ensuring the safety of a tunnel structure and safe holed excavation of the tunnel. With the adoption of the holed excavation supporting structure and the construction method, a slope is prevented from being destroyed in large area due to open cut tunnel excavation, and original ecological vegetation is protected to keep the slope intact and avoid landslip due to heavy excavation, so that neither engineering construction or environmental protection is neglected, and the engineering cost is also greatly lowered. The holed excavation supporting structure and the construction method can be widely applied to tunnel building in a mountainous hilly area.
Description
Technical field
The tunnel that the present invention relates to supporting and protection structure in a kind of tunnel excavation process and the light and shade massif intersection under the tunnel excavation worker method, particularly a kind of bias state advances supporting and protection structure and the construction in wide open the digging.
Background technology
Along with the high speed development of China's economy and society, expressway construction has also obtained corresponding fast development.Irreplaceable effect is particularly being brought into play at mountain ridge hilling terrain in the tunnel in highway construction.Can be fast, safety, to enter the hole smoothly be one of key link of constructing tunnel, be subjected to condition restriction such as linear, landform, geology, generally, when hole section country rock is I～II level, when formation condition is good, generally can adopt full section directly to excavate the hole, the excavation of initial 10m～20m section should be with the control of explosion drilling depth at 2m～3m.Hole 3m～5m section can the linked network pneumatically placed concrete and is established the steel bow member and strengthened, and all the other construction supportings generally adopt plain shotcrete support, also local anchor pole can be set in the arch according to circumstances; When hole section country rock is III～IV level, when formation condition is better, can adopt benching tunnelling method to enter the hole.The control of explosion drilling depth is at 1.5m～2.5m.Construction supporting adopts system anchor bolt and steel mesh reinforcement sprayed mortar, the steel bow member is set in case of necessity strengthens construction supporting.More than hole section country rock reaches for the V level, when formation condition is very poor, also can consider to adopt the annular excavation to stay core local method, side heading method or bottom heading method etc.The excavation drilling depth should be controlled below 1.0m, should adopt the hand excavation, just adopts weak explosion in case of necessity.Construction supporting must be close to excavated surface, just can excavate then, with digging with propping up.Construction supporting adopts net pneumatically placed concrete, system anchor bolt; Steel bow member longitudinal pitch is 0.5～1.0m, can perform interim inverted arch in case of necessity.After finishing, excavation applies reinforced concrete lining layer early.Said method is under the serious situation of tunnel portal section bias voltage, and it is big to exist the limit to face upward sloping excavation area, and peripheral vegetation environmental is destroyed seriously, and excavation quantity is many, and entrance construction influences the tunnel and advances the hole time because engineering quantity is big; Because side slope is steeper, also need apply catchwater, highway isolated fence etc., the land acquisition area is bigger; Construction investment cost height, engineering quantity must cause investment cost higher greatly, cause unnecessary waste; Need on a large scale that excavation advances under the situation in hole, exist working security poor, easily destroy primal environment etc. problem.
Summary of the invention
The purpose of this invention is to provide under a kind of bias state the light and shade section tunnel that has a common boundary and advance wide open supporting and protection structure and the construction of digging, solve and how to be implemented under the bias state, when realizing safely and effectively constructing tunnel, avoid the large tracts of land excavation, destroy the technical problem of primal environment.
For achieving the above object, the present invention adopts following technical scheme:
A section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state, comprise the pipe canopy, also comprise bias voltage retaining wall and cover arch, described cover arch is gone up arch springing and is supported on the massif dark face, described massif dark face is reinforced by the slip casting ductule that arranges at interval, and described cover arch arch springing is down hidden on bias voltage retaining wall body, and described bias voltage retaining wall body is arranged on bright of massif, be made up of bias voltage retaining wall body body and bias voltage barricade basis, described bias voltage barricade base support is on the massif basement rock.
The external side of described bias voltage retaining wall studs with the veneer work stone.
The gradient of described bias voltage retaining wall body is 1:3.
Bow member is the i iron bow member in the described cover arch, and the arrangement pitch that follows track center line or tunnel center line is 800mm.
Described slip casting ductule length is 5 meters, and the arrangement pitch that encircles the arch placement of foot at massif dark face support set is 0.5*0.6 rice; Described slip casting ductule is 1.0*1.0 rice at the domatic arrangement pitch of massif dark face, and is plum blossom shape layout.
Described bias voltage barricade basis instrument has the lock foot anchoring stock that inserts the massif basement rock.
The light and shade section tunnel that has a common boundary advances the wide open supporting and protection structure of digging and carries out the tunnel and advance the wide open construction that digs under the described bias state, and step is as follows:
Step 4, at the installation of tunnel portal open cut tunnel place, steel grating bow member and pre-buried location orifice tube, and the following arch springing that makes the steel grating bow member places in the bias voltage retaining wall body of intending construction, pre-buried shaped steel in one end and the bias voltage retaining wall body is welded to connect, the other end and slope retaining ductule are welded to connect, installation sleeve encircles exterior sheathing and builds the donor concrete outside the steel grating bow member then, simultaneously, is no less than 14 days to building the concrete moisture-keeping maintaining of finishing;
The gradient of facing upward the slope in the described step 2 is no more than 90 degree.
Steel grating bow member in the described step 4 is the i iron bow member, follows that distance between centers of tracks is 0.5 meter in track center line or the tunnel.
Compared with prior art the present invention has following characteristics and beneficial effect:
The present invention is by adopting the support pattern of bias voltage retaining wall and the combination of cover arch, and the one-sided biasing force in balance tunnel guarantees tunnel structure safety, accomplishes that tunnel excavation enters the hole safely.Avoided having protected the ecosystem vegetation because open cut tunnel excavation in tunnel causes domatic extensive damage, made domatic maintaining the original state, avoided accomplishing neglecting neither of engineering construction and environmental protection because heavy excavation causes the landslide; Aspect construction investment, to compare with the conventional tunnel job practices, cost of investment has bigger reduction, and the reduction amplitude can account for former investment valency 16%～30%.
The bias voltage barricade basis seat of supporting and protection structure of the present invention is on basement rock, cover arch arch springing down is supported on the barricade, last arch springing is supported in massif excavation face, be fan shape, form power transmission mechanism smoothly continuously, stressed reasonable, connect reliable, excavation to the tunnel forms reliable supporting, guarantee the safety of digging process, be particularly useful for being subjected to condition restriction such as line style, landform, geology, tunnel portal section bias voltage is serious, need excavation on a large scale, have the tunnel excavation of landform such as working security is poor, environmental disruption is big.
Below be traditional open cut worker method and the contrast of worker's method beneficial effect of the present invention:
The present invention can be widely used in the tunnel excavation that original geological conditions is bias state, is particularly useful for the serious tunnel excavation construction of the limited bias state of linear, landform and geological conditions.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the cover arch is gone up the arch springing detail drawing.
Fig. 3 is construction process figure.
Reference numeral: 1-massif basement rock, 2-bias voltage barricade basis, 3-cover arch arch springing, 4-cover arch are down gone up arch springing, 5-slip casting ductule, 6-pipe canopy, 7-massif dark face, 8-bias voltage retaining wall body, 9-veneer work stone, 10-cover arch donor, 11-lock foot anchoring stock.
The specific embodiment
Embodiment is referring to illustrated in figures 1 and 2, a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state, comprise pipe canopy 6, also comprise bias voltage retaining wall and cover arch, described cover arch is gone up arch springing 4 and is supported on the massif dark face 7, described massif dark face 7 is reinforced by the slip casting ductule 5 that arranges at interval, described cover arch arch springing 3 is down hidden on bias voltage retaining wall body 8, described bias voltage retaining wall body 8 is arranged on bright of massif, be made up of bias voltage retaining wall body body and bias voltage barricade basis 2, described bias voltage barricade basis 2 is supported on the massif basement rock 1.
Described bias voltage retaining wall body 8 lateral surfaces stud with veneer work stone 9.
The gradient of described bias voltage retaining wall body 8 is 1:3.
Bow member is the i iron bow member in the described cover arch, and the arrangement pitch that follows track center line or tunnel center line is 800mm.
Described slip casting ductule 5 length are 5 meters, and the arrangement pitch of arch springing 4 positions is 0.5*0.6 rice on massif dark face 7 support sets arch; Described slip casting ductule 5 is 1.0*1.0 rice at massif dark face 7 domatic arrangement pitchs, and is plum blossom shape layout.
Described bias voltage barricade basis 2 is provided with the lock foot anchoring stock 11 that inserts massif basement rock 1.
Described cover arch donor 10 is made up of bow member and concrete in the built-in cover arch.
The light and shade section tunnel that has a common boundary advances the wide open supporting and protection structure of digging and carries out the tunnel and advance the wide open construction that digs under the described bias state, and step is as follows: referring to Fig. 3,
Step 4, at the installation of tunnel portal open cut tunnel place, steel grating bow member and pre-buried location orifice tube, and the following arch springing that makes the steel grating bow member places in the bias voltage retaining wall body of intending construction, pre-buried shaped steel in one end and the bias voltage retaining wall body is welded to connect, the other end and slope retaining ductule are welded to connect, installation sleeve encircles exterior sheathing and builds the donor concrete outside the steel grating bow member then, simultaneously, is no less than 14 days to building the concrete moisture-keeping maintaining of finishing; The cover arch adopts the C30 concrete to build, thick 100cm, and internally-arranged type steel grating bow member, bow member adopts 18# i iron, spacing 80 ㎝/Pin.Last arch springing suitably enlarges, and makes the big arch springing of high 200cm, thick 75cm, to increase and the rock mass contact surface.The arch scar adopts the slip casting ductule supporting, its supporting parameter: φ 42 * 4 ㎜ ductules, and 5.0 meters of length, in length and breadth to spacing 50 * 60 ㎝, ductule is appeared and is stretched into 50cm in the cover arch.Cover arch is gone up in the arch springing the vertical channel-section steel of 25# is set one, respectively with steel bow member and slope retaining ductule firm welding, the steel bow member is joined together and is tightly linked with massif.The i iron bow member is by bending machine segmentation clod wash processing, controls distortion and the axis situation of bow member during splicing well.Pre-buried orifice tube welded in requirement was encircleed with cover when the steel bow member was installed.
Claims (9)
1. the light and shade section tunnel that has a common boundary advances the wide open supporting and protection structure of digging under the bias state, comprise pipe canopy (6), it is characterized in that: also comprise bias voltage retaining wall and cover arch, described cover arch is gone up arch springing (4) and is supported on the massif dark face (7), described massif dark face (7) is reinforced by the slip casting ductule (5) that arranges at interval, described cover arch arch springing (3) is down hidden on bias voltage retaining wall body (8), described bias voltage retaining wall body (8) is arranged on bright of massif, be made up of bias voltage retaining wall body body and bias voltage barricade basis (2), described bias voltage barricade basis (2) is supported on the massif basement rock (1).
2. a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state according to claim 1, and it is characterized in that: described bias voltage retaining wall body (8) lateral surface studs with veneer work stone (9).
3. a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state according to claim 1, and it is characterized in that: the gradient of described bias voltage retaining wall body (8) is 1:3.
4. a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state according to claim 1, it is characterized in that: bow member is the i iron bow member in the described cover arch, and the arrangement pitch that follows track center line or tunnel center line is 800mm.
5. a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state according to claim 1, it is characterized in that: described slip casting ductule (5) length is 5 meters, and the arrangement pitch of going up arch springing (4) position at massif dark face (7) support set arch is 0.5*0.6 rice; Described slip casting ductule (5) is 1.0*1.0 rice at the domatic arrangement pitch of massif dark face (7), and is plum blossom shape layout.
6. a section tunnel, light and shade boundary advances the wide open supporting and protection structure of digging under a kind of bias state according to claim 1, and it is characterized in that: described bias voltage barricade basis (2) is provided with the lock foot anchoring stock (11) that inserts massif basement rock (1).
7. adopt under any described bias state of claim 1 to 6 the light and shade section tunnel that has a common boundary to advance the wide open supporting and protection structure of digging and carry out the tunnel and advance the wide open construction that digs, it is characterized in that: step is as follows:
Step 1 is carried out the preparation before the construction earlier, the center line in measuring tunnel and sideline, and the mapping light and shade section cross-sectional drawing that has a common boundary, and according to the plane relation in massif side slope line and tunnel, determine open cut tunnel tunneling section boundary of works area;
Step 2, cover arch arch placement of foot face upward the slope excavation, remove soil property covering layer and loose during excavation, control the excavation face well, reduce the disturbance to former massif, the cover arch is gone up arch springing excavation back and is in time adopted slip casting ductule to carry out domatic reinforcing;
Step 3, the bias voltage formula barricade foundation construction on massif light and shade boundary section and open cut tunnel distant mountain side;
Step 4, at the installation of tunnel portal open cut tunnel place, steel grating bow member and pre-buried location orifice tube, and the following arch springing that makes the steel grating bow member places in the bias voltage retaining wall body of intending construction, pre-buried shaped steel in one end and the bias voltage retaining wall body is welded to connect, the other end and slope retaining ductule are welded to connect, installation sleeve encircles exterior sheathing and builds the donor concrete outside the steel grating bow member then, simultaneously, is no less than 14 days to building the concrete moisture-keeping maintaining of finishing;
Step 5 after cover arch donor concrete strength reaches 70% design strength, is carried out pipe roof construction in the bright side of former massif;
Step 6 is carried out the remainder pipe roof construction in the dark side of former massif;
Step 7, the bias voltage retaining walls body part wall body outside adopt hair side granite fines barnacle piece to build construction by a fourth one facing bond;
Step 8 after pipe roof construction is finished, adopts benching tunnelling method to carry out the barrel excavation of light and shade boundary section.
8. the light and shade section tunnel that has a common boundary advances the wide open supporting and protection structure of digging and carries out the tunnel and advance the wide open construction that digs under the bias state according to claim 7, and it is characterized in that: the gradient of facing upward the slope in the described step 2 is no more than 90 degree.
9. the light and shade section tunnel that has a common boundary advances the wide open supporting and protection structure of digging and carries out the tunnel and advance the wide open construction that digs under the bias state according to claim 7, it is characterized in that: the steel grating bow member in the described step 4 is the i iron bow member, follows that distance between centers of tracks is 0.5 meter in track center line or the tunnel.
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| CN2013101616552A CN103206219A (en) | 2013-05-06 | 2013-05-06 | Holed excavation supporting structure for light and dark junction section of tunnel in bias pressure state and construction method |
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| CN2013101616552A CN103206219A (en) | 2013-05-06 | 2013-05-06 | Holed excavation supporting structure for light and dark junction section of tunnel in bias pressure state and construction method |
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| CN103883328A (en) * | 2014-03-20 | 2014-06-25 | 福州大学 | Semi-covering semi-darkened construction method for separated tunnels downwards penetrating through high and steep V-shaped gully eccentric compression section |
| CN103993892A (en) * | 2014-05-29 | 2014-08-20 | 山东大学 | Supporting method for soft broken nonuniform stratum tunnel construction |
| CN106638509A (en) * | 2017-01-04 | 2017-05-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Tunnel structure capable of reducing slope excavation and construction method thereof |
| CN108005660A (en) * | 2017-11-16 | 2018-05-08 | 党文华 | A kind of Optimization of Expressway Tunnel Construction method |
| CN108625879A (en) * | 2018-05-28 | 2018-10-09 | 中铁第勘察设计院集团有限公司 | Mountain Tunnels half-open and half-hidden structure and its construction method |
| CN108868779A (en) * | 2018-08-27 | 2018-11-23 | 广西交通设计集团有限公司 | Tunnel portal support device and tunnel portal construction method |
| CN108952752A (en) * | 2018-08-31 | 2018-12-07 | 中铁隧道局集团有限公司 | A kind of combined type highway Tunnel Portal Structures suitable for big bias landform |
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| CN109868746A (en) * | 2019-01-31 | 2019-06-11 | 中铁广州工程局集团桥梁工程有限公司 | A kind of entirety build-in type skewback foundation excavation method |
| CN109915165A (en) * | 2019-04-08 | 2019-06-21 | 西南交通大学 | Bilateral proximity unsymmetrial loading tunnel hole segment structure and its construction method |
| CN109931075A (en) * | 2019-04-03 | 2019-06-25 | 长江勘测规划设计研究有限责任公司 | The hole arragement construction in steep inclined shaft tunnel |
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| CN110242306A (en) * | 2019-06-28 | 2019-09-17 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel anti-side laminated structure and construction method |
| CN110258536A (en) * | 2019-06-19 | 2019-09-20 | 山东省地质矿产勘查开发局八0一水文地质工程地质大队(山东省地矿工程勘察院) | Opposite-pulling anchor cable structure for reducing bias load and construction method |
| CN110318770A (en) * | 2019-06-26 | 2019-10-11 | 中铁二十三局集团第三工程有限公司 | A kind of hazy start tunneling method of vcehicular tunnel |
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| CN110747904A (en) * | 2019-11-26 | 2020-02-04 | 山西省交通规划勘察设计院有限公司 | Highway tunnel bias open cut tunnel structural form and construction method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114514A1 (en) * | 1983-01-17 | 1984-08-01 | Charcon Tunnels Limited | Cast concrete element for underground tubular structure |
| CN102518453A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团有限公司 | Quick tunnel-entrance construction method for bias-pressure shallow-buried or single-pressure tilting arenaceous loess tunnels |
| CN102678126A (en) * | 2012-05-15 | 2012-09-19 | 中国建筑第六工程局有限公司 | Method for excavating mountain tunnels in weak surrounding rock-fractured zones or shallow covered slope sections |
| CN102767379A (en) * | 2012-08-10 | 2012-11-07 | 中国建筑第四工程局有限公司 | Shallow-buried unsymmetrical pressure section tunnel drilling construction method |
-
2013
- 2013-05-06 CN CN2013101616552A patent/CN103206219A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0114514A1 (en) * | 1983-01-17 | 1984-08-01 | Charcon Tunnels Limited | Cast concrete element for underground tubular structure |
| CN102518453A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团有限公司 | Quick tunnel-entrance construction method for bias-pressure shallow-buried or single-pressure tilting arenaceous loess tunnels |
| CN102678126A (en) * | 2012-05-15 | 2012-09-19 | 中国建筑第六工程局有限公司 | Method for excavating mountain tunnels in weak surrounding rock-fractured zones or shallow covered slope sections |
| CN102767379A (en) * | 2012-08-10 | 2012-11-07 | 中国建筑第四工程局有限公司 | Shallow-buried unsymmetrical pressure section tunnel drilling construction method |
Non-Patent Citations (2)
| Title |
|---|
| 曹顺等: "斜交偏压隧道半明洞进洞施工技术", 《西南公路》 * |
| 朱培良等: "偏压状态下隧道洞口段明洞暗挖施工", 《浙江交通职业技术学院学报》 * |
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| CN110258536A (en) * | 2019-06-19 | 2019-09-20 | 山东省地质矿产勘查开发局八0一水文地质工程地质大队(山东省地矿工程勘察院) | Opposite-pulling anchor cable structure for reducing bias load and construction method |
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| CN110863838A (en) * | 2019-12-11 | 2020-03-06 | 湖北省路桥集团有限公司 | Complex weak surrounding rock tunnel entry structure and construction method |
| CN111706352A (en) * | 2020-05-21 | 2020-09-25 | 中国水利水电第十四工程局有限公司 | Method for entering arch into hole by using bias tunnel arch sleeve |
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| CN112127900A (en) * | 2020-09-07 | 2020-12-25 | 中国水利水电第十四工程局有限公司 | Construction method for hidden half-wall and half-arch protection structure of exposed arch of shallow-buried bias tunnel penetrating through accumulation body |
| CN112647536A (en) * | 2020-12-04 | 2021-04-13 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel construction method without side slope disturbance |
| CN114086969A (en) * | 2021-11-30 | 2022-02-25 | 广西路桥工程集团有限公司 | Tunnel entering construction method |
| CN114086969B (en) * | 2021-11-30 | 2024-02-20 | 广西路桥工程集团有限公司 | Tunnel entering construction method |
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Application publication date: 20130717 |