CN107524458A - A kind of tunnel lining structure with tunnel bottom deformation allowance - Google Patents

A kind of tunnel lining structure with tunnel bottom deformation allowance Download PDF

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Publication number
CN107524458A
CN107524458A CN201710766637.5A CN201710766637A CN107524458A CN 107524458 A CN107524458 A CN 107524458A CN 201710766637 A CN201710766637 A CN 201710766637A CN 107524458 A CN107524458 A CN 107524458A
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CN
China
Prior art keywords
tunnel
inverted arch
arch
packed layer
section
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Granted
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CN201710766637.5A
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Chinese (zh)
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CN107524458B (en
Inventor
赵东平
喻渝
胡炜
樊浩博
余大龙
谭信荣
李老三
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China Railway Eryuan Engineering Group Co Ltd CREEC
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China Railway Eryuan Engineering Group Co Ltd CREEC
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Classifications

    • 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
    • E21D11/14—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 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
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

A kind of tunnel lining structure with tunnel bottom deformation allowance, so that tunnel lining structure possesses the ability of drum deformation on certain resistance tunnel bottom, so as to extend the service life of liner structure.Tunnel lining structure includes the loopful shape secondary lining being made up of crown section, inverted arch section and both sides arch wall section, and inverted arch packed layer is set on inverted arch section.The upper surface of the inverted arch packed layer is in recessed cambered surface, on inverted arch packed layer between the arch springing position of both sides arch wall section fixed setting along tunnel Longitudinal extending reinforced concrete floor, between the bottom surface of the reinforced concrete floor and the upper surface of inverted arch packed layer formed prearrangement of deformation amount groove.

Description

A kind of tunnel lining structure with tunnel bottom deformation allowance
Technical field
Patent of the present invention is related to novel tunnel liner structure, more particularly to a kind of tunnel suitable for drum on unknown cause tunnel bottom Road liner structure.
Background technology
Tunnel-liner can be deformed under pressure from surrounding rock effect, and typical variant feature shows as vault sinking, on tunnel bottom Drum.Generally, deformation allowance can be designed, it is ensured that in the construction time at arch wall position according to engineering experience during Tunnel Design Between tunnel deformation be unlikely to invade track clearance.The tunnel structure inverted arch of conventional design is provided with filling concrete, and tunnel is faced upward without pre- Deflection is stayed, once sedimentation or upper drum deformation occur during operation for tunnel, then the deflection can be reacted directly into tunnel and face upward Encircle fill surface, can cause track deformation for railway tunnel, jeopardize traffic safety；For vcehicular tunnel road surface can be caused longitudinally flat Suitable, severe patient can cause traffic accident.
According to domestic and international tunnel defect field investigation result, many railway tunnel are in operation phase even construction time bottom knot Structure be start to occur it is different degrees of ftracture, breakage, the defect phenomenon such as pucking, cause bottom plate upper track irregularity, so as to sternly Ghost image rings train operating safety and efficiency of operation, and therefore, tunnel bottom Structural defect is increasingly paid close attention to by engineering circles personage With attention.Table 1 is the investigation situation to the domestic and international tunnel bottom Structural defect in part, and the table analysis has counted the position of disease generation Put, a situation arises for disease section geological condition and disease.
The domestic and international tunnel bottom Structural defect statistical form of table 1
By the statistic analysis result of table 1, underground water development or agensis, drum disease on tunnel bottom is likely to occur Evil, and drum disease mostly occurs in the lithology such as mud stone, sandstone, shale and its alternating layers location on tunnel bottom, thickness is mostly thin layer-middle thickness Layer, occurrence are mostly to delay to incline.
As can be seen here, tunnel is built in mud stone, sandstone, shale and its alternating layers country rock, drum phenomenon is more prominent on tunnel bottom. Currently for the passive reclamation activities of drum disease generally use on tunnel bottom, i.e., upper bulging section tunnel bottom structure is removed and reformed, the measure is not Can only have a negative impact to the duration of engineering and cost, while also can not fundamentally solve drum problem on tunnel bottom.Engineering passes through Test and show, even if after the tunnel bottom structure dismounting to destroyed renews, still have and the phenomenon that tunnel bottom continues upper drum occurs.Therefore, in order to Radical cure tunnel bottom continues upper bulging disease, should start with from improvement tunnel structure and surrouding rock deformation control technology.
Patent of invention content
The technical problems to be solved by the invention are to provide a kind of tunnel lining structure with tunnel bottom deformation allowance, with The ability for making tunnel lining structure possess drum deformation on certain resistance tunnel bottom, so as to extend the service life of liner structure.
Technical scheme is as follows used by patent of the present invention solves its technical problem：
A kind of tunnel lining structure with tunnel bottom deformation allowance of the present invention, tunnel lining structure are included by vault The loopful shape secondary lining that section, inverted arch section and both sides arch wall section are formed, inverted arch packed layer is set on inverted arch section, it is characterized in that： The upper surface of the inverted arch packed layer is in recessed cambered surface, is fixed on inverted arch packed layer between the arch springing position of both sides arch wall section Reinforced concrete floor along tunnel Longitudinal extending, the bottom surface of the reinforced concrete floor and the upper surface of inverted arch packed layer are set Between formed prearrangement of deformation amount groove.
The arch springing position of the both sides arch wall section is anchored in the locking angle anchor in tunnel surrounding stone along the longitudinally spaced setting in tunnel The horizontal end anchor connection in side with reinforced concrete floor respectively of the outer end of bar or anchor cable, both sides locking angle anchor pole or anchor cable.
The invention has the advantages that by setting prearrangement of deformation amount groove in being filled in inverted arch, so as to be provided for drum on tunnel bottom Certain deformation space, ensure that drum will not cause the upper drum on road surface on tunnel bottom, avoid tunnel influences to drive a vehicle because lifting on inverted arch Safety；Reinforced concrete floor can ensure that road surface is not recessed and destroyed under Driving Loading；The concrete of high intensity Inverted arch fills the structural thickness for adding inverted arch position, enhances the non-deformability of inverted arch.The invention can ensure that liner structure Possess the ability of drum deformation on certain resistance tunnel bottom, the service life of liner structure can be extended.
Brief description of the drawings
This specification includes following two width accompanying drawing：
Fig. 1 is a kind of tunnel lining structure schematic diagram with tunnel bottom deformation allowance of the present invention；
Fig. 2 is a kind of deformation schematic diagram of the tunnel lining structure with tunnel bottom deformation allowance of the present invention；
Component, toponym and corresponding mark are shown in figure：Secondary lining 10, arch wall section 11, crown section 12, inverted arch Inverted arch section before section 13, inverted arch packed layer 14, reinforced concrete floor 20, locking angle anchor pole or anchor cable 21, prearrangement of deformation amount groove 30, deformation Internal periphery A1, inverted arch section Internal periphery A after deformation2, inverted arch section outline B before deformation1, inverted arch section outline B after deformation2, before deformation Prearrangement of deformation amount bottom land contouring C1, prearrangement of deformation amount bottom land contouring C after deformation2。
Embodiment
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Reference picture 1, a kind of tunnel lining structure with tunnel bottom deformation allowance of the present invention, tunnel lining structure including by The loopful shape secondary lining 10 that crown section 12, inverted arch section 13 and both sides arch wall section 11 are formed, inverted arch is set to fill out on inverted arch section 13 Fill layer 14.The upper surface of the inverted arch packed layer 14 is recessed cambered surface, in the arch of both sides arch wall section 11 on inverted arch packed layer 14 Between foot position fixed setting along tunnel Longitudinal extending reinforced concrete floor 20, the bottom surface of the reinforced concrete floor 20 with Prearrangement of deformation amount groove 30 is formed between the upper surface of inverted arch packed layer 14.I.e. prearrangement of deformation amount groove 30 is to be reserved in inverted arch packed layer 14 The dead slot with one fixed width and height, certain deformation space can be provided for the upper drum of tunnel bottom structure, at the same time as in Entreat drainage channel.
Referring to Figures 1 and 2, by setting prearrangement of deformation amount groove 30 in inverted arch packed layer 14, provided for drum on tunnel bottom certain Deformation space, ensure that drum will not cause the upper drum on road surface on tunnel bottom, avoid tunnel influences traffic safety because being lifted on inverted arch. Reinforced concrete floor 20 can ensure that road surface is not recessed and destroyed under Driving Loading.
Reference picture 1, the arch springing position of the both sides arch wall section 11 are anchored in tunnel surrounding stone along the longitudinally spaced setting in tunnel The outer end of interior locking angle anchor pole or anchor cable 21, both sides locking angle anchor pole or anchor cable 21 is horizontal with the side of reinforced concrete floor 20 respectively Anchor connection is held, prevents the both ends of reinforced concrete floor 20 to be subjected to displacement by locking angle anchor pole or anchor cable 21.The inverted arch filling Layer 14 is filled by high-strength concrete, is added inverted arch thickness, is enhanced the non-deformability of tunnel bottom structure.
Reference picture 2, drum deforms the secondary lining 10 in the generation of inverted arch section 13 under outer load action, inverted arch section before deformation Internal periphery A1With inverted arch section outline B before deformation1Inverted arch section Internal periphery A after deforming is moved under load action2And deformation Inverted arch section outline B afterwards2Position, prearrangement of deformation amount bottom land contouring C before deformation1Upper drum prearrangement of deformation amount trench bottom to after deforming Profile C2, the space of prearrangement of deformation amount groove 30 reduces.Armoured concrete slab 20 before being deformed after do not produce displacement, on tunnel bottom caused by drum Malformation is carried out in the space of prearrangement of deformation amount groove 30, therefore can ensure that drum will not cause reinforced concrete floor 20 on tunnel bottom Upper drum, avoid tunnel influences traffic safety because being lifted on inverted arch
The patent of the present invention a kind of tunnel lining structure with tunnel bottom deformation allowance described above that simply explains through diagrams Some principles, be not intended to by patent of the present invention be confined to shown in and described concrete structure and the scope of application in, it is therefore every Corresponding modification and the equivalent being utilized are possible to, belongs to the apllied the scope of the claims of patent of the present invention.

Claims (3)

1. a kind of tunnel lining structure with tunnel bottom deformation allowance, tunnel lining structure is included by crown section (12), inverted arch The loopful shape secondary lining (10) that section (13) and both sides arch wall section (11) are formed, setting inverted arch packed layer on inverted arch section (13) (14), it is characterized in that：The upper surface of the inverted arch packed layer (14) is recessed cambered surface, is encircleed on inverted arch packed layer (14) in both sides Reinforced concrete floor (20) of the fixed setting along tunnel Longitudinal extending, the armored concrete between the arch springing position of wall section (11) Prearrangement of deformation amount groove (30) is formed between the bottom surface of bottom plate (20) and the upper surface of inverted arch packed layer (14).
2. a kind of tunnel lining structure with tunnel bottom deformation allowance as claimed in claim 1, it is characterized in that：The both sides The arch springing position of arch wall section (11) is anchored in locking angle anchor pole or anchor cable (21) in tunnel surrounding stone along the longitudinally spaced setting in tunnel, The horizontal end anchor connection in side with reinforced concrete floor (20) respectively of the outer end of both sides locking angle anchor pole or anchor cable (21).
3. a kind of tunnel lining structure with tunnel bottom deformation allowance as claimed in claim 1, it is characterized in that：The inverted arch Packed layer (14) is filled by high-strength concrete.
CN201710766637.5A 2017-08-30 2017-08-30 Tunnel lining structure with tunnel bottom reserved deformation Active CN107524458B (en)

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CN201710766637.5A CN107524458B (en) 2017-08-30 2017-08-30 Tunnel lining structure with tunnel bottom reserved deformation

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CN107524458B CN107524458B (en) 2023-09-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403160A (en) * 2018-11-19 2019-03-01 中铁第四勘察设计院集团有限公司 A kind of track deformation control structure in earthquake large deformation section Railway Tunnel
CN111335915A (en) * 2019-12-27 2020-06-26 山西省交通科技研发有限公司 Section steel supporting structure and method for repairing damage of tunnel inverted arch crown
CN111502706A (en) * 2020-03-26 2020-08-07 中铁十八局集团有限公司 Tunnel inverted arch structure and method suitable for bottom heave deformation control
CN112696212A (en) * 2020-12-31 2021-04-23 中铁二院工程集团有限责任公司 Compressible tunnel bottom structure for inhibiting tunnel bottom bulging and construction method

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CN106437748A (en) * 2016-06-12 2017-02-22 中铁二院工程集团有限责任公司 Separated maintainable tunnel lining structure
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109403160A (en) * 2018-11-19 2019-03-01 中铁第四勘察设计院集团有限公司 A kind of track deformation control structure in earthquake large deformation section Railway Tunnel
CN109403160B (en) * 2018-11-19 2023-09-26 中铁第四勘察设计院集团有限公司 Rail deformation control structure in earthquake large deformation section high-speed railway tunnel
CN111335915A (en) * 2019-12-27 2020-06-26 山西省交通科技研发有限公司 Section steel supporting structure and method for repairing damage of tunnel inverted arch crown
CN111335915B (en) * 2019-12-27 2021-10-08 山西省交通科技研发有限公司 Section steel supporting structure and method for repairing damage of tunnel inverted arch crown
CN111502706A (en) * 2020-03-26 2020-08-07 中铁十八局集团有限公司 Tunnel inverted arch structure and method suitable for bottom heave deformation control
CN111502706B (en) * 2020-03-26 2022-04-12 中铁十八局集团有限公司 Tunnel inverted arch structure and method suitable for bottom heave deformation control
CN112696212A (en) * 2020-12-31 2021-04-23 中铁二院工程集团有限责任公司 Compressible tunnel bottom structure for inhibiting tunnel bottom bulging and construction method

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