CN108571342A - A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method - Google Patents

A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method Download PDF

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Publication number
CN108571342A
CN108571342A CN201810223391.1A CN201810223391A CN108571342A CN 108571342 A CN108571342 A CN 108571342A CN 201810223391 A CN201810223391 A CN 201810223391A CN 108571342 A CN108571342 A CN 108571342A
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CN
China
Prior art keywords
mid
pipe
board
longitudinal drainage
drainage pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810223391.1A
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Chinese (zh)
Inventor
马学辉
李洪松
程福周
叶亦盛
戴小松
朱海军
杜雄伟
段久旭
于大举
侯孝伟
李峰
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China Construction Third Engineering Bureau Co Ltd
China Construction Third Bureau Infrastructure Construction Investment Co Ltd
Original Assignee
China Construction Third Engineering Bureau Co Ltd
China Construction Third Bureau Infrastructure Construction Investment Co Ltd
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Publication date
Application filed by China Construction Third Engineering Bureau Co Ltd, China Construction Third Bureau Infrastructure Construction Investment Co Ltd filed Critical China Construction Third Engineering Bureau Co Ltd
Priority to CN201810223391.1A priority Critical patent/CN108571342A/en
Publication of CN108571342A publication Critical patent/CN108571342A/en
Withdrawn legal-status Critical Current

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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
    • E21D11/04—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 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 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

Abstract

The invention discloses a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction methods, the interval wall top waterproof/drainage structure includes middle drift preliminary bracing, middle drift circumferential direction water-permeable pipe, mid-board shoulder longitudinal drainage pipe, waterproof layer and arch springing longitudinal drainage pipe, the middle drift circumferential direction water-permeable pipe is connect with mid-board shoulder longitudinal drainage pipe using threeway T-type connection type, the circle draining blind pipe in main hole is connect with two shoulder longitudinal drainage pipe of mid-board using cross connection type, the circle draining blind pipe in main hole is connect with arch springing longitudinal drainage pipe using T-type connection type, the connection of the waterproof layer and mid-board shoulder longitudinal drainage pipe in the main hole in left and right.Longitudinal drainage pipe is arranged in two shoulder of mid-board setting mid-board in the present invention, the water accumulation of mid-board groove area is collected guide, compare the existing mode that vertical main drainpipe and longitudinal drainage pipe are set inside mid-board, it ensure that the globality of mid-board, drainage performance is improved simultaneously, is convenient for mid-board stress and its overall stability.

Description

A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method
Technical field
The invention belongs to Tunnel Engineering technical fields, and in particular to a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its Construction method.
Background technology
Multiple-arch tunnel can form groove area in interval wall top, be the place that underground water is easy aggregation in country rock, if tunnel Waterproof and drain measure is insufficient, easily causes Tunnel Water Leakage, huge hidden danger is brought to safe handling, the operation maintenance in tunnel.Even Encircle tunnel and be generally set to shallow embedding location, underground water is relatively abundant, and water content is bigger in multiple-arch tunnel country rock, to multiple-arch tunnel interval The guarded drainage of wall zone just seems extremely important.This technology invention will be found in three-layer type mid-board multiple-arch tunnel digging process Concentrated flow guides discharge, is optimized to tunnel water handling structure, promotes tunnel water handling performance.
Invention content
The purpose of the present invention is that overcome drawbacks described above existing in the prior art, provides in a kind of multiple-arch tunnel Partition wall top waterproof/drainage structure and its construction method.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure, Including in middle drift preliminary bracing, middle drift circumferential direction water-permeable pipe, mid-board shoulder longitudinal drainage pipe, waterproof layer, armored concrete Partition wall and arch springing longitudinal drainage pipe, the middle drift circumferential direction water-permeable pipe are connected with mid-board shoulder longitudinal drainage pipe using threeway T-type The mode of connecing connects, and the circle draining blind pipe in main hole is connect with two shoulder longitudinal drainage pipe of mid-board using cross connection type, The circle draining blind pipe in main hole is connect with arch springing longitudinal drainage pipe using T-type connection type, the waterproof layer and interval in the main hole in left and right The connection of wall shoulder longitudinal drainage pipe.
In above-mentioned technical proposal, the middle drift circumferential direction water-permeable pipe is soft spring water-permeable pipe, and caliber is φ 50mm, is passed through M12 swell fixtures and No. 12 iron wires are fixed.
In above-mentioned technical proposal, the mid-board shoulder longitudinal drainage pipe is rigid water-permeable pipe, and caliber is φ 100mm, is made It is fixed on mid-board wall shoulder with M12 swell fixtures and No. 12 iron wires, it is distributed in interval wall top, moving towards longitudinal along multiple-arch tunnel sets It sets, adjacent two sections of mid-boards shoulder longitudinal drainage pipe is connected using straight line, the gradient and line style and Middle Wall of Multi-Arch Highway Tunnel when burying It is consistent.
In above-mentioned technical proposal, the ring direction drainpipe in the main hole is soft spring water-permeable pipe, and caliber is φ 50mm, in master Hole just serves as a contrast construction and completes to be arranged at concentrated flow, and setting method is identical as middle drift circumferential direction water-permeable pipe.
In above-mentioned technical proposal, the circle draining between the mid-board shoulder longitudinal drainage pipe and arch springing longitudinal drainage pipe Blind pipe, aperture are consistent with mid-board shoulder longitudinal drainage pipe, and caliber is φ 100mm, and arch springing longitudinal drainage pipe is that one side of something is beaten Hole bellows, wraps up in geotextiles outside.
In above-mentioned technical proposal, when the waterproof layer in the main hole in left and right is connect with mid-board shoulder longitudinal drainage pipe, use M12 swell fixtures and No. 12 iron wires fix the longitudinal drainage pipe of wall shoulder, after ensureing that straight and position is accurate, are then laid with anti- Water layer carries out overlap joint fixation using cementitious material etc. between waterproof layer and wall shoulder longitudinal drainage pipe, uses cementitious material etc. Carry out overlap joint fixation so that the water of the main hole waterproof layer surface in left and right can be received by mid-board shoulder longitudinal drainage pipe.
The present invention is using, and mainly completes applying for Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure by following construction procedure Work：
A. after the completion of the middle drift preliminary bracing of multiple-arch tunnel is constructed, 1~3 middle drift ring is set at the concentrated flow of hole top To water-permeable pipe, longitudinal pitch 10m, when dry anhydrous section longer, spacing can be lengthened suitably, suitably be added there is water location spacing Close, the radical of middle drift circumferential direction water-permeable pipe can be determined according to flow size, moisten or location of dripping can be arranged 1~2, there is concentration 2~3 can be arranged at shallow bid flow, 3 can be arranged at big stock flow by having to concentrate；
B. when armored concrete mid-board pouring construction, in shoulder position use and mid-board shoulder longitudinal drainage pipe outside diameter size Identical steel pipe or pvc pipe install chamfering formula template, are the installation reserved part position of mid-board shoulder longitudinal drainage pipe；
C. after the completion of main hole preliminary bracing, it is vertical that main hole circle draining blind pipe, mid-board shoulder longitudinal drainage pipe, arch springing are carried out successively To the circumferential row of T-type connection, main hole between drainpipe and middle drift circumferential direction water-permeable pipe and mid-board shoulder longitudinal drainage pipe Cross connection between water blind pipe and mid-board shoulder longitudinal drainage pipe, circle draining blind pipe and the arch springing longitudinal drainage in main hole T-type connection between pipe；
D. the construction for carrying out waterproof layer, is overlapped between waterproof layer and mid-board shoulder longitudinal drainage pipe using cementitious material It is fixed so that the water of the main hole waterproof layer surface in left and right can be received by mid-board shoulder longitudinal drainage pipe；
E. two lined steel muscle are bound, main hole secondary lining is poured using formwork jumbo, completes entire work progress.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can reach following has Beneficial effect：
1, circle draining blind pipe is arranged on middle drift top in the present invention, and ejectment is concentrated in the infiltration of interval wall top, is drained using guiding Mode reinforce draining, ensure that the operating environment of middle drift construction, while promoting the working environment of mid-board；
2, longitudinal drainage pipe is set in two shoulder of mid-board setting mid-board, the water accumulation of mid-board groove area is collected and is led Row, improves the drainage performance of interval wall zone, compares existing vertical main drainpipe and the longitudinal direction of being arranged inside mid-board and arranges The mode of water pipe ensure that the globality of mid-board, be convenient for mid-board stress and its overall stability.
Description of the drawings
Specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is a kind of overall structure diagram of Middle Wall of Multi-Arch Highway Tunnel top of the invention waterproof/drainage structure；
Fig. 2 is the close-up schematic view at the positions A in Fig. 1；
In figure：1- middle drift preliminary bracings, 2- middle drift circumferential direction water-permeable pipes, the main hole preliminary bracings of 3-, 4- mid-boards shoulder are longitudinal Drainpipe, the main hole secondary linings of 5-, 6- waterproof layers, the solidifying native mid-board of 7- reinforcing rods, 8- arch springing longitudinal drainage pipes, 9-M12 expansions Screw, 10-12 iron wires.
Specific implementation mode
As shown in Figure 1, for a kind of overall structure diagram of Middle Wall of Multi-Arch Highway Tunnel top of the invention waterproof/drainage structure, including In middle drift preliminary bracing 1, middle drift circumferential direction water-permeable pipe 2, mid-board shoulder longitudinal drainage pipe 4, waterproof layer 6, armored concrete Partition wall 7 and arch springing longitudinal drainage pipe 8, the middle drift circumferential direction water-permeable pipe 2 is with mid-board shoulder longitudinal drainage pipe 4 using threeway T Type connection type connects, and circle draining blind pipe and the two shoulder longitudinal drainage pipe 4 of mid-board in main hole use cross connection type The circle draining blind pipe of connection, main hole is connect with arch springing longitudinal drainage pipe 8 using T-type connection type, the waterproof layer 6 in the main hole in left and right With the connection of mid-board shoulder longitudinal drainage pipe 4.
As shown in Fig. 2, for the close-up schematic view at the positions A in Fig. 1, middle drift circumferential direction water-permeable pipe 2 is that soft spring is saturating Water pipe, caliber are φ 50mm, are fixed by M12 swell fixtures 9 and No. 12 iron wires 10；Mid-board shoulder longitudinal drainage pipe 4 is hard Formula water-permeable pipe, caliber is φ 100mm, fixed on mid-board wall shoulder using M12 swell fixtures 9 and No. 12 iron wires 10, is distributed in Interval wall top moves towards longitudinally disposed along multiple-arch tunnel, and adjacent two sections of mid-boards shoulder longitudinal drainage pipe 4 is connected using straight line, is buried If when the gradient and line style be consistent with Middle Wall of Multi-Arch Highway Tunnel.
As a kind of technical optimization scheme of the present invention, the ring direction drainpipe in the main hole is soft spring water-permeable pipe, pipe Diameter is φ 50mm, completes to be arranged at concentrated flow in lining construction at the beginning of main hole, setting method is identical as middle drift circumferential direction water-permeable pipe 2.
As a kind of technical optimization scheme of the present invention, the mid-board shoulder longitudinal drainage pipe 4 and arch springing longitudinal drainage Circle draining blind pipe between pipe 8, aperture are consistent with mid-board shoulder longitudinal drainage pipe 4, and caliber is φ 100mm, arch springing Longitudinal drainage pipe 8 is half of punching bellows, wraps up in geotextiles outside.
As a kind of technical optimization scheme of the present invention, make between the waterproof layer 6 and mid-board shoulder longitudinal drainage pipe 4 Overlap joint fixation is carried out with cementitious material etc. so that the water on main 6 surface of hole waterproof layer in left and right can longitudinally be arranged by mid-board shoulder Water pipe 4 is received, such as geotextiles waterproof layer 6 is fixed using special thermoplasticity planchet and nailing, and waterproof roll is polymerize by brushing Object cement water-proof binding material is fixed.
The present invention is using, and mainly completes applying for Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure by following construction procedure Work：
Step 1：After the completion of the middle drift preliminary bracing 1 of multiple-arch tunnel is constructed, in setting 1~3 at the concentrated flow of hole top Pilot tunnel circumferential direction water-permeable pipe 2, longitudinal pitch 10m, when dry anhydrous section longer, spacing can be lengthened suitably, there is water location spacing Appropriate encryption, the radical of middle drift circumferential direction water-permeable pipe 2 can be determined according to flow size, moisten or location of dripping can be arranged 1~2 Root, 2~3 can be arranged at shallow bid flow by having to concentrate, and 3 can be arranged at big stock flow by having to concentrate；
Step 2：When armored concrete 7 pouring construction of mid-board, in shoulder position use and mid-board shoulder longitudinal drainage pipe 4 The identical steel pipe of outer diameter size or pvc pipe install chamfering formula template, are that portion is reserved in the installation of mid-board shoulder longitudinal drainage pipe 4 Divide position；
Step 3：After the completion of main hole preliminary bracing 3, main hole circle draining blind pipe, mid-board shoulder longitudinal drainage are carried out successively Between pipe 4, arch springing longitudinal drainage pipe 8 and middle drift circumferential direction water-permeable pipe 2 and mid-board shoulder longitudinal drainage pipe 4 T-type connection, Cross connection between main hole circle draining blind pipe and mid-board shoulder longitudinal drainage pipe 4, main hole circle draining blind pipe and arch T-type connection between foot longitudinal drainage pipe 8；
Step 4：The construction for carrying out waterproof layer uses cementitious material between waterproof layer 6 and mid-board shoulder longitudinal drainage pipe 4 Carry out overlap joint fixation so that the water on main 6 surface of hole waterproof layer in left and right can be received by mid-board shoulder longitudinal drainage pipe 4；
Step 5：Two lined steel muscle are bound, main hole secondary lining 5 is poured using formwork jumbo, completes entire work progress.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include Within protection scope of the present invention.

Claims (9)

1. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure, including middle drift preliminary bracing（1）, middle drift circumferential direction water-permeable pipe （2）, mid-board shoulder longitudinal drainage pipe（4）, waterproof layer（6）, armored concrete mid-board（7）With arch springing longitudinal drainage pipe（8）, It is characterized in that：The middle drift circumferential direction water-permeable pipe（2）With mid-board shoulder longitudinal drainage pipe（4）Using threeway T-type connection side Formula connects, circle draining blind pipe and the two shoulder longitudinal drainage pipe of mid-board in main hole（4）It is connected using cross connection type, it is main The circle draining blind pipe in hole and arch springing longitudinal drainage pipe（8）It is connected using T-type connection type, the waterproof layer in the main hole in left and right（6）With Mid-board shoulder longitudinal drainage pipe（4）Connection.
2. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1, it is characterised in that：The middle drift Circumferential water-permeable pipe（2）For soft spring water-permeable pipe, pass through M12 swell fixtures（9）With No. 12 iron wires（10）It is fixed, caliber φ 50mm。
3. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1, it is characterised in that：The mid-board Shoulder longitudinal drainage pipe（4）It is distributed in interval wall top, moves towards longitudinally disposed along multiple-arch tunnel, adjacent two sections of mid-boards shoulder is longitudinal Drainpipe（4）It is connected using straight line, the gradient and line style and Middle Wall of Multi-Arch Highway Tunnel when burying（7）It is consistent.
4. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1 or 3, it is characterised in that：In described Partition wall shoulder longitudinal drainage pipe（4）For rigid water-permeable pipe, M12 swell fixtures are used（9）With No. 12 iron wires（10）In mid-board wall Fixed on shoulder, caliber is φ 100mm.
5. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1, it is characterised in that：The main hole Ring direction drainpipe is soft spring water-permeable pipe, and caliber is φ 50mm, completes to be arranged at concentrated flow in lining construction at the beginning of main hole, setting Method and middle drift circumferential direction water-permeable pipe（2）It is identical.
6. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1, it is characterised in that：The mid-board Shoulder longitudinal drainage pipe（4）With arch springing longitudinal drainage pipe（8）Between circle draining blind pipe, aperture is longitudinally arranged with mid-board shoulder Water pipe（4）It is consistent, caliber is φ 100mm.
7. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 6, it is characterised in that：The arch springing is vertical To drainpipe（8）Bellows is punched for one side of something, wraps up in geotextiles outside.
8. a kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure according to claim 1, it is characterised in that：The waterproof layer （6）With mid-board shoulder longitudinal drainage pipe（4）Between using cementitious material etc. carry out overlap joint fixation so that the main hole waterproof in left and right The water of layer surface can be by mid-board shoulder longitudinal drainage pipe（4）It receives.
9. a kind of construction method of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure, it is characterised in that：The construction method includes following Step：
A. in the middle drift preliminary bracing of multiple-arch tunnel（1）After the completion of construction, led in setting 1~3 at the concentrated flow of hole top Hole circumferential direction water-permeable pipe（2）, longitudinal pitch 10m, when dry anhydrous section longer, spacing can be lengthened suitably, there is water location spacing Appropriate encryption, middle drift circumferential direction water-permeable pipe（2）Radical can be determined according to flow size, moisten or location of dripping can be arranged 1~2 Root, 2~3 can be arranged at shallow bid flow by having to concentrate, and 3 can be arranged at big stock flow by having to concentrate；
B. armored concrete mid-board（7）When pouring construction, in shoulder position use and mid-board shoulder longitudinal drainage pipe（4）Outside The identical steel pipe of diameter size or pvc pipe install chamfering formula template, are mid-board shoulder longitudinal drainage pipe（4）Installation reserve portion Divide position；
C. main hole preliminary bracing（3）After the completion of construction, main hole circle draining blind pipe, mid-board shoulder longitudinal drainage pipe are carried out successively （4）, arch springing longitudinal drainage pipe（8）And middle drift circumferential direction water-permeable pipe（2）With mid-board shoulder longitudinal drainage pipe（4）Between T Type connection, the circle draining blind pipe in main hole and mid-board shoulder longitudinal drainage pipe（4）Between cross connection, the circumferential direction in main hole Drain blind pipe and arch springing longitudinal drainage pipe（8）Between T-type connection；
D. waterproof layer is carried out（6）Construction, waterproof layer（6）With mid-board shoulder longitudinal drainage pipe（4）Between using cementitious Material carries out overlap joint fixation so that the main hole waterproof layer in left and right（6）The water on surface can be by mid-board shoulder longitudinal drainage pipe（4）It connects It receives；
E. two lined steel muscle are bound, main hole secondary lining is poured using formwork jumbo（5）, complete entire work progress.
CN201810223391.1A 2018-03-19 2018-03-19 A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method Withdrawn CN108571342A (en)

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Application Number Priority Date Filing Date Title
CN201810223391.1A CN108571342A (en) 2018-03-19 2018-03-19 A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810223391.1A CN108571342A (en) 2018-03-19 2018-03-19 A kind of Middle Wall of Multi-Arch Highway Tunnel top waterproof/drainage structure and its construction method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425222A (en) * 2020-04-27 2020-07-17 中国建筑第七工程局有限公司 Method for protecting partition wall in multi-arch tunnel
CN111485904A (en) * 2020-04-24 2020-08-04 中国五冶集团有限公司 Construction method for large-section multi-arch tunnel mid-partition wall
CN114278375A (en) * 2021-12-18 2022-04-05 中建一局集团京通路桥建设有限公司 Tunnel hoop drainage system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111485904A (en) * 2020-04-24 2020-08-04 中国五冶集团有限公司 Construction method for large-section multi-arch tunnel mid-partition wall
CN111425222A (en) * 2020-04-27 2020-07-17 中国建筑第七工程局有限公司 Method for protecting partition wall in multi-arch tunnel
CN114278375A (en) * 2021-12-18 2022-04-05 中建一局集团京通路桥建设有限公司 Tunnel hoop drainage system

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