CN205677631U - It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function - Google Patents

It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function Download PDF

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Publication number
CN205677631U
CN205677631U CN201620563442.1U CN201620563442U CN205677631U CN 205677631 U CN205677631 U CN 205677631U CN 201620563442 U CN201620563442 U CN 201620563442U CN 205677631 U CN205677631 U CN 205677631U
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China
Prior art keywords
tunnel
arch wall
arch
box
central row
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Withdrawn - After Issue
Application number
CN201620563442.1U
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Chinese (zh)
Inventor
张磊
卿伟宸
林本涛
高杨
郑伟
朱勇
曾宏飞
黄华
钟昌桂
孟祥磊
张慧玲
巩江峰
王若晨
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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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Priority to CN201620563442.1U priority Critical patent/CN205677631U/en
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Abstract

It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function, introduce in tunnel to be prevented effectively from underground water, rain flood is overcome to cause underground water enchroachment (invasion) bubble railway roadbed due to tunnel medial sulcus and central trench drainability deficiency season, ensure that level of ground water is less than under tunnel floor, thus eliminate the destruction risk to liner structure particularly tunnel bottom structure for the rain flood underground water in season.It including arrange arch wall preliminary bracing structure, secondary liner structure and substrate screed-coat from outside to inside, is arranged at arch wall preliminary bracing structure, the waterproof and water drainage system between secondary liner structure is connected with central row tank.Secondary liner structure includes arch wall secondary lining and the box type baseboard structure being made up of base plate, frid, and the two ends of base plate consolidate with the bottom of arch wall secondary lining, frid formation recessed relative to top plate face central row tank.The top of frid two side buries tapping pipe underground along circuit bearing of trend interval, and the inner of each tapping pipe is connected with central row tank, and outer end then passes through substrate screed-coat to Tunnel Base.

Description

It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function
Technical field
The utility model relates to tunnel lining structure, grows particularly to a kind of underground water or underground water is by seasonal effect Greatly, without the tunnel lining structure under high-ground stress geological condition.
Background technology
Enter 21st century, with the high speed development of railway construction in China, speed per hour 200km above high standard two-wire iron Road is built more and more, especially in mountainous region in middle and western China, circuit show line is big by sweep, topographic and geologic complicated condition etc. multiple because of The restriction of element, tunnel scale increases sharply, and long mountain tunnel gets more and more.Grow due to underground water and there is complexity, various The feature such as property and irregularities, major long tunnel builds risk, and particularly to run water damage risk more and more higher.
Tradition double track tunnel lining cutting typically uses the liner structure form of bent wall band inverted arch, as shown in Figure 1.Use on inverted arch Concrete Filled is as railway roadbed basis, and in construction, inverted arch is filled with inverted arch and separately poured.Central drain+bilateral water is set in tunnel Ditch, Central drain is placed in the obturator on inverted arch.Underground water discharge path is: country rock → preliminary bracing → draining blind pipe → Lateral sulcus → transverse drain → Central drain, the i.e. water of tunnel structure periphery are permeated via draining blind pipe ejectment by preliminary bracing Enter the Central drain within tunnel structure body, outside final discharge hole.The maximum defect of conventional drainage systems is: middle edema with the heart involved Ditch is located within tunnel structure, the periphery underground water of main ejectment main ejectment arch wall scope, the ponding below tunnel inverted arch without The effective ejectment of method.Especially in the close region of ground hydraulic connection, under continuous rainfall or rainstorm weather, because groundwater run off is rapid Increase, traditional drainage system often cannot ejectment in time in the gutter in tunnel structure body, thus cause level of ground water urgency Acute rising.Under high hydraulic pressure effect, inverted arch at the bottom of tunnel or inverted arch is caused to fill protuberance.In recent years, suitable ten thousandth, Shanghai elder brother, the expensive railway such as extensively There occurs the water damage events such as some abutment wall crackings, inverted arch protuberance, ballastless track bed deformation during tunnel operation, cause railway and set Meter, construction, the great attention building and runing each side.
Optimize liner structure and drainage system is the key technology solving tunnel, karst area water damage risk.Therefore, how It is unified in unobstructed for safe and reliable for structure and draining under a kind of supporting construction, become reduction tunnel, karst area water damage risk, protect Card operation security in the urgent need to.
Utility model content
Technical problem to be solved in the utility model is to provide and is combined arched tunnel at the bottom of the box tunnel with hydrophobic function Lining structure, introduces in tunnel to be prevented effectively from underground water, overcomes rain flood season due to tunnel medial sulcus and central trench drainability Not enough and cause underground water enchroachment (invasion) bubble railway roadbed, it is ensured that level of ground water is less than under tunnel floor, thus eliminates rain flood underground water pair in season The destruction risk of liner structure particularly tunnel bottom structure.
It is as follows that the utility model solves the technical scheme that its technical problem used:
It is combined arch tunnel lining structure, including set from outside to inside at the bottom of the box tunnel with hydrophobic function of the present utility model Put arch wall preliminary bracing structure, secondary liner structure and substrate screed-coat, be arranged at arch wall preliminary bracing structure, secondary lining knot Waterproof and water drainage system between structure is connected with central row tank, it is characterized in that: described secondary liner structure includes that arch wall secondary serves as a contrast The box type baseboard structure built and be made up of base plate, frid, the two ends of base plate consolidate with the bottom of arch wall secondary lining, and frid is relative In the recessed formation in top plate face central row tank;The top of described frid two side buries sluicing underground along circuit bearing of trend interval Pipe, the inner of each tapping pipe is connected with central row tank, and outer end then passes through substrate screed-coat to Tunnel Base.
The beneficial effects of the utility model are, use box type baseboard structure to replace tradition inverted arch structure, and on the one hand construction is opened Dig operation more convenient, succinct, overcome tradition lining types and cause inverted arch to be constructed owing to inverted arch foundation excavation curvature is wayward And the problems such as the cracking protuberance that cause inconsistent with design;On the other hand, it is achieved liner structure " external draining ", arch wall secondary lining Build underground water behind to be not passed through abutment wall and introduce tunnel lateral sulcus, and be introduced directly into central row tank at the bottom of tunnel, be prevented effectively from rain flood season Underground water excessive lateral sulcus drainability pours in railway roadbed not.Simultaneously because gutter is positioned under base plate, can guarantee that ground all the time Lower water smooth and easy eliminating and avoid causing bottom slab crack to swell.
Brief description
This specification includes following four width accompanying drawings:
Fig. 1 is the bent wall band inverted arch liner structure schematic diagram of tradition;
Fig. 2 is that the utility model has at the bottom of the box tunnel of hydrophobic function and is combined the section structure of arch tunnel lining structure and shows It is intended to;
Fig. 3 is that the utility model has at the bottom of the box tunnel of hydrophobic function and is combined the section structure of arch tunnel lining structure and shows It is intended to;
Fig. 4 is the enlarged drawing of B local in Fig. 2;
Component shown in figure, toponym and corresponding mark: central row tank A;Arch wall preliminary bracing structure the 10th, arch wall Shotcrete layer 10a, arch wall steelframe 10b, arch wall system anchor bolt 10c;Substrate screed-coat 11;Waterproof and water drainage system the 20th, nonwoven soil Work cloth 20a, circle draining blind pipe 20b, splash guard 20c;Tapping pipe 21;Arch wall secondary lining 30;Base plate the 31st, frid 32.
Detailed description of the invention
With embodiment, the utility model is further illustrated below in conjunction with the accompanying drawings.
It with reference to Fig. 2 and Fig. 3, at the bottom of the box tunnel with hydrophobic function of the present utility model, is combined arch tunnel lining structure, It including arrange arch wall preliminary bracing structure the 10th, secondary liner structure and substrate screed-coat 11 from outside to inside, is arranged at the arch wall initial stage Waterproof and water drainage system 20 between supporting construction the 10th, secondary liner structure is connected with central row tank A.Described secondary liner structure Including arch wall secondary lining 30 and by the base plate box type baseboard structure that the 31st, frid 22 is constituted, the two ends of base plate 31 and arch wall secondary The bottom consolidation of lining cutting 30, frid 22 formation recessed relative to top board 31 plate face central row tank A.Described frid 22 two side Top buries tapping pipe 21 underground along circuit bearing of trend interval, and the inner of each tapping pipe 21 is connected with central row tank A, and outer end is then Through substrate screed-coat 11 to Tunnel Base.
The utility model is by construction and drainage system at the bottom of reasonable reformation tunnel, it is achieved liner structure " external draining ", will Tradition liner structure underground water is changed into the drainage pattern outside agent structure by the drainage pattern entering outside structure in structure, keeps away Exempt from underground water to introduce in tunnel.Rain flood is effectively overcome to cause underground due to tunnel medial sulcus and central trench drainability deficiency season Water enchroachment (invasion) steeps railway roadbed;Meanwhile, arrange in conjunction with tunnel bottom structure, strengthen central row sink size, reduce central row tank absolute altitude, it is ensured that ground Lower water level is less than under tunnel floor, thus eliminates the destruction wind to liner structure particularly tunnel bottom structure for the rain flood underground water in season Danger.
With reference to Fig. 2, generally, described central row tank A is arranged under tunnel center line., base plate 31 ascender line road bearing of trend It is arranged at intervals with the inspection well head being connected with central row tank A.With reference to Fig. 2 and Fig. 4, described waterproof and water drainage system 20 includes arch wall The splash guard 20c that the non-woven geotextile 20a of scope laying and arch wall scope are laid, and be laid in along tunnel excavation direction interval Circle draining blind pipe 20b between non-woven geotextile 20a and splash guard 20c.The two ends of described circle draining blind pipe 20b are along base plate 31 Lower edge is introduced directly into central row tank A.
With reference to Fig. 2 and Fig. 3, described arch wall preliminary bracing structure 10 includes the arch wall shotcrete layer covering arch wall country rock 10a and the arch wall system anchor bolt 10c along arch wall quincuncial arrangement.Along tunnel excavation side in described arch wall shotcrete layer 10a Lay arch wall steelframe 10b to interval, in arch wall shotcrete layer 10a, add bar-mat reinforcement.
The above the utility model that simply explains through diagrams has at the bottom of the box tunnel of hydrophobic function and is combined arched tunnel lining Build some principles of construction, be not intended to the utility model is confined in shown and described concrete structure and the scope of application, Therefore every corresponding modification being possible to be utilized and equivalent, belong to the apllied the scope of the claims of the utility model.

Claims (6)

1. it is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function, including arrange arch wall preliminary bracing from outside to inside Structure (10), secondary liner structure and substrate screed-coat (11), be arranged at arch wall preliminary bracing structure (10), secondary liner structure Between waterproof and water drainage system (20) be connected with central row tank (A), it is characterized in that: described secondary liner structure includes arch wall two Secondary lining cutting (30) and the box type baseboard structure being made up of base plate (31), frid (22), the two ends of base plate (31) serve as a contrast with arch wall secondary Build the bottom consolidation of (30), frid (22) formation recessed relative to top board (31) plate face central row tank (A);Waterproof and water drainage system (20) bottom is connected with central row tank (A) top;The top of described frid (22) two side is along between circuit bearing of trend Every burying tapping pipe (21) underground, the inner of each tapping pipe (21) is connected with central row tank (A), and outer end then passes through substrate screed-coat (11) to Tunnel Base.
2. it is combined arch tunnel lining structure at the bottom of the box tunnel as claimed in claim 1 with hydrophobic function, it is characterized in that: institute Stating central row tank (A) to be arranged under tunnel center line, base plate (31) ascender line road bearing of trend is arranged at intervals with and center draining The inspection well head that groove (A) is connected.
3. it is combined arch tunnel lining structure at the bottom of the box tunnel as claimed in claim 1 with hydrophobic function, it is characterized in that: institute State the non-woven geotextile (20a) that waterproof and water drainage system (20) includes that arch wall scope lays and the splash guard (20c) that arch wall scope is laid, And it is spaced the circle draining blind pipe being laid between non-woven geotextile (20a) and splash guard (20c) along tunnel excavation direction (20b)。
4. it is combined arch tunnel lining structure at the bottom of the box tunnel as claimed in claim 3 with hydrophobic function, it is characterized in that: institute The two ends stating circle draining blind pipe (20b) are introduced directly into central row tank (A) along bottom upper plate (31) lower edge.
5. it is combined arch tunnel lining structure at the bottom of the box tunnel as claimed in claim 1 with hydrophobic function, it is characterized in that: institute State arch wall preliminary bracing structure (10) to include covering the arch wall shotcrete layer (10a) of arch wall country rock and along the quincunx cloth of arch wall The arch wall system anchor bolt (10c) put.
6. it is combined arch tunnel lining structure at the bottom of the box tunnel as claimed in claim 5 with hydrophobic function, it is characterized in that: institute Arch wall steelframe (10b), arch wall shotcrete layer is laid along tunnel excavation direction interval in stating arch wall shotcrete layer (10a) (10a) bar-mat reinforcement is added in.
CN201620563442.1U 2016-06-12 2016-06-12 It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function Withdrawn - After Issue CN205677631U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201620563442.1U CN205677631U (en) 2016-06-12 2016-06-12 It is combined arch tunnel lining structure at the bottom of the box tunnel with hydrophobic function

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840210A (en) * 2016-06-12 2016-08-10 中铁二院工程集团有限责任公司 Box type tunnel-bottom composite arched tunnel lining structure with water drain function
CN106677821A (en) * 2017-02-10 2017-05-17 西南交通大学 Assembly type tunnel lining back circumferential drainage structure and implementation method thereof
CN107012791A (en) * 2017-03-22 2017-08-04 中交公局厦门工程有限公司 Tunnel-Type Anchorage of Suspension Bridge waterproof and water drainage system is with building construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840210A (en) * 2016-06-12 2016-08-10 中铁二院工程集团有限责任公司 Box type tunnel-bottom composite arched tunnel lining structure with water drain function
CN106677821A (en) * 2017-02-10 2017-05-17 西南交通大学 Assembly type tunnel lining back circumferential drainage structure and implementation method thereof
CN106677821B (en) * 2017-02-10 2019-01-25 西南交通大学 A kind of pin-connected panel tunnel-liner behind circle draining construction and its implementation method
CN107012791A (en) * 2017-03-22 2017-08-04 中交公局厦门工程有限公司 Tunnel-Type Anchorage of Suspension Bridge waterproof and water drainage system is with building construction method

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AV01 Patent right actively abandoned

Granted publication date: 20161109

Effective date of abandoning: 20180921

AV01 Patent right actively abandoned