CN101963060A - Tunnel construction method based on steel tube arch-rib supporting structure - Google Patents

Tunnel construction method based on steel tube arch-rib supporting structure Download PDF

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Publication number
CN101963060A
CN101963060A CN 201010508410 CN201010508410A CN101963060A CN 101963060 A CN101963060 A CN 101963060A CN 201010508410 CN201010508410 CN 201010508410 CN 201010508410 A CN201010508410 A CN 201010508410A CN 101963060 A CN101963060 A CN 101963060A
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China
Prior art keywords
steel tube
arch
tunnel
supporting structure
tube arch
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CN 201010508410
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CN101963060B (en
Inventor
仇文革
章慧健
龚伦
冯冀蒙
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Southwest Jiaotong University
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Southwest Jiaotong University
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Abstract

The invention discloses a tunnel construction method based on a steel tube arch-rib supporting structure, which solves the problem that under a soft rock condition, a large-span and large-section tunnel is safely and quickly constructed. The tunnel construction method comprises the main processing steps of: forming a steel tube concrete arch-rib type supporting structure; and under the protection of the supporting structure, tunneling a main tunnel on a complete section, and finally, forming a secondary lining structure. In the technology of the invention, by introducing steel tube concrete, the strong support is realized by low cost; and being different from the traditional advanced supports, such as a pipe roof, and the like which mainly give priority to a longitudinal direction, the steel tube concrete arch-rib type supporting structure mainly gives priority to a circumferential direction with poorer stress; in the construction process of an steel tube arch, a plurality of operation surfaces of longitudinal and transverse guiding holes are constructed in parallel with high speed and short work time; after the steel tube arch is completely constructed, a large-size digger is adopted to operate, which greatly increases construction speed and operation freedom degrees; and otherwise, the steel tube arch can be used as a casual support or a permanent support so that materials are not wasted and the construction cost of the large-span and large-section tunnel is saved.

Description

Method for tunnel construction based on steel tube arch rib supporting and protection structure
Technical field
The present invention relates to the constructing tunnel field, particularly stride large cross-section tunnel greatly and build technology.
Background technology
Along with the development of speedway and high-speed railway, the excavated section of traffic tunnel is increasing, and what occurred at present has Four-Lane Road or four line single bore tunnels, and the excavation span surpasses 20m, and excavation area is at 200m 2More than.How to be implemented in and to build fast and safely in the weak surrounding rock that to stride large cross-section tunnel greatly be the current important topic that needs to be resolved hurrily.For reducing surrouding rock deformation, control adjoining rock stability,, at present the large section tunnel digging construction method is mainly contained benching tunnelling method, CD method, CRD method, annular excavation reservation core local method, double side wall pilot tunnel method etc. according to the country rock quality.A common ground of these worker's methods is exactly to have two above work planes (can be referred to as partial excavation) simultaneously, exists construction to disturb each other, the working procedure complexity, and speed of application is slow; The interim inner support of a large amount of employings causes construction cost significantly to improve; And, limited working space owing to there is inner support; In addition, have Program for structural Transformation when tearing support open, this all is harmful to tunnel support and surrouding rock deformation.
Except above-mentioned partial excavation method, a kind of work plane long anchor cable method of utilizing the face leading pre-supporting technology to realize full face excavation had also appearred in the last few years, promptly squeeze into long anchor cable toward front of tunnel heading, stablize face, and then adopt full face excavation.Although this method has overcome construction interference and the slow shortcoming of construction speed that partial excavation brings, the long anchor cable of squeezing into face is because only as the temporary lining measure, and can't reuse, and causes waste of material.
In addition, novel worker's method that some occur in the recent period then can not adopt owing to the expensive cost of construction equipment on a large scale as pre-lining method and shield structure auxiliary law (the annular excavation method that shield structure arch excavation method, many shields structure are formed etc.).
Summary of the invention
In view of the above shortcoming of prior art, the objective of the invention is to stride large cross-section tunnel safety, rapid construction problem greatly, and make few waste of material that causes of trying one's best in the work progress solving under the soft rock condition, reduce construction cost.
The objective of the invention is to realize by following means.
Based on the method for tunnel construction of steel tube arch rib supporting and protection structure, be used for striding large cross-section tunnel greatly and construct safely and fast, comprise following treatment step:
1) vertical three pilot tunnels utilize " clay model " to apply the abut of steel tube arch in advance in the two arch springing pilot tunnels;
2) the many work plane excavations of longitudinal separation certain distance hoop interval arc pilot tunnel; In the hoop pilot tunnel, set up steel pipe concrete arch rib (be analogous to beam and slab structure, be equivalent to the effect of " beam ");
3) adopt the supporting of Arc grid arch between the hoop arch rib, this and steel tube arch form the double curvature arch structure, play auxiliary power transmission effect (be analogous to beam and slab structure, be equivalent to the effect of " plate ");
Full face excavation main body tunnel under the protection of " the auxiliary steel tube arch rib supporting and protection structure that applies of large cross-section tunnel 3 pilot tunnels " that 4) forms in step 3), last form concrete forms secondary liner structure.
The present invention is by introducing concrete filled steel tube, realized strong supporting with low cost, and the advance support of in the past managing canopy and so on together is generally vertically to serve as main difference, steel pipe concrete arch rib shape supporting and protection structure of the present invention is based on stressed comparatively disadvantageous hoop, and apply in the process in steel tube arch, the parallel construction of the many scope of operations of longitudinal and transverse pilot tunnel, speed is fast, the duration is short.Steel tube arch apply finish after, adopt the operation of large excavator tool, improved speed of application and operation degree of freedom greatly.In addition, steel tube arch be temporary lining also be permanent support, do not cause waste of material, saved and striden the large cross-section tunnel construction cost greatly.
Description of drawings
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is the A-A sectional drawing of overall schematic of the present invention.
Fig. 3 ~ 8 are each step schematic diagram of the present invention.
Fig. 9 finishes steel pipe under the perisporium base tunnel for the present invention, the structural representation after the formation steel tube arch.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
(1) as shown in Figure 3, the tunneling direction along tunnel 10 to be excavated during construction applies two base tunnels 11 in advance that size is less at its arch springing place, apply a central base tunnel 12 at its vault place.
(2) from the longitudinally many work plane excavations of central base tunnel hoop interval arc base tunnel; Steel pipe under the arc base tunnel, fill concrete in steel pipe, thus form high strength as shown in Figure 4, the steel pipe concrete arch rib shape supporting and protection structure 13 of high-bearing capacity.
(3) as shown in Figure 5, excavation main body tunnel 10 under the protection of the steel pipe concrete arch rib supporting and protection structure 13 that forms in advance.Adopt the supporting of Arc grid arch between the hoop arch rib, the vertical section as shown in Figure 6.
(4) mould is built secondary liner structure 14 in tunnel 10, and as shown in Figure 7, corresponding vertical section as shown in Figure 8.Repetition 3), 4) step to whole tunnel is built and is finished.

Claims (1)

1. based on the method for tunnel construction of steel tube arch rib supporting and protection structure, be used for striding large cross-section tunnel greatly and construct safely and fast, comprise following treatment step:
1) vertical three pilot tunnels utilize " clay model " to apply the abut of steel tube arch in advance in the two arch springing pilot tunnels;
2) the many work plane excavations of longitudinal separation certain distance hoop interval arc pilot tunnel; In the hoop pilot tunnel, set up steel pipe concrete arch rib;
3) adopt the supporting of Arc grid arch between the hoop arch rib, this and steel tube arch form the double curvature arch structure, play auxiliary power transmission effect;
4) large cross-section tunnel three pilot tunnels that form in step 3) are assisted full face excavation main body tunnel under the protection that applies steel tube arch rib supporting and protection structure, and last form concrete forms secondary liner structure.
CN2010105084109A 2010-10-15 2010-10-15 Tunnel construction method based on steel tube arch-rib supporting structure Active CN101963060B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182465A (en) * 2011-04-01 2011-09-14 长安大学 Tunnel-entering construction method for tunnel
CN103046935A (en) * 2012-12-31 2013-04-17 西南交通大学 Construction method of annually-perforated long-span mass concrete tunnel lining structure
CN103061783A (en) * 2013-02-07 2013-04-24 河南理工大学 Retractable steel tube concrete support
CN103310039A (en) * 2013-05-22 2013-09-18 青岛理工大学 Method for detecting influence of underground construction on structure of ground building
CN103572761A (en) * 2012-07-19 2014-02-12 中铁十九局集团第二工程有限公司 Protection method for existing line nearby construction by using brook protective screenings
CN103696786A (en) * 2013-11-14 2014-04-02 中铁隧道集团有限公司 Arch support connecting method for enhancing longitudinal stability between steel arch supports
CN103993891A (en) * 2014-03-12 2014-08-20 淮南矿业(集团)有限责任公司 Rapid roadway construction method for soft and broken surrounding rocks of deep coal mine and support system
CN106869943A (en) * 2017-02-10 2017-06-20 西南交通大学 Pass through the construction method of the dynamic secondary liner structure of subway tunnel error resilience of active fault
CN106930768A (en) * 2017-05-04 2017-07-07 湖南城市学院 Tunnel Construction and application
CN107060845A (en) * 2017-05-04 2017-08-18 湖南城市学院 Underground space structure builds construction method and application
CN112065466A (en) * 2020-09-23 2020-12-11 中铁工程装备集团有限公司 Multilayer underground engineering supporting structure and construction method thereof

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CN101037944A (en) * 2007-04-27 2007-09-19 惠中华 Shallow buried and underground excavated engineering project execution method and equipment thereof

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CN101037944A (en) * 2007-04-27 2007-09-19 惠中华 Shallow buried and underground excavated engineering project execution method and equipment thereof

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182465A (en) * 2011-04-01 2011-09-14 长安大学 Tunnel-entering construction method for tunnel
CN103572761B (en) * 2012-07-19 2016-05-11 中铁十九局集团第二工程有限公司 A kind of method of utilizing Brooker protection network to protect while closing on both wired constructions
CN103572761A (en) * 2012-07-19 2014-02-12 中铁十九局集团第二工程有限公司 Protection method for existing line nearby construction by using brook protective screenings
CN103046935A (en) * 2012-12-31 2013-04-17 西南交通大学 Construction method of annually-perforated long-span mass concrete tunnel lining structure
CN103061783A (en) * 2013-02-07 2013-04-24 河南理工大学 Retractable steel tube concrete support
CN103310039A (en) * 2013-05-22 2013-09-18 青岛理工大学 Method for detecting influence of underground construction on structure of ground building
CN103310039B (en) * 2013-05-22 2016-01-27 青岛理工大学 The detection method that a kind of underground construction affects ground building structure
CN103696786A (en) * 2013-11-14 2014-04-02 中铁隧道集团有限公司 Arch support connecting method for enhancing longitudinal stability between steel arch supports
CN103993891A (en) * 2014-03-12 2014-08-20 淮南矿业(集团)有限责任公司 Rapid roadway construction method for soft and broken surrounding rocks of deep coal mine and support system
CN106869943A (en) * 2017-02-10 2017-06-20 西南交通大学 Pass through the construction method of the dynamic secondary liner structure of subway tunnel error resilience of active fault
CN106930768A (en) * 2017-05-04 2017-07-07 湖南城市学院 Tunnel Construction and application
CN107060845A (en) * 2017-05-04 2017-08-18 湖南城市学院 Underground space structure builds construction method and application
CN107060845B (en) * 2017-05-04 2019-01-15 湖南城市学院 Underground space structure builds construction method and application
CN106930768B (en) * 2017-05-04 2019-01-15 湖南城市学院 Tunnel Construction and application
CN112065466A (en) * 2020-09-23 2020-12-11 中铁工程装备集团有限公司 Multilayer underground engineering supporting structure and construction method thereof

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