CN203161255U

CN203161255U - Tunnel network waterproof and drainage structure

Info

Publication number: CN203161255U
Application number: CN 201220418804
Authority: CN
Inventors: 陶伟明; 巩江峰; 林本涛; 张磊; 高杨
Original assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Current assignee: China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-08-28
Anticipated expiration: 2022-08-22

Abstract

The utility model discloses a tunnel network waterproof and drainage structure which can well meet the waterproof requirements of the usage functions of tunnel construction and is excellent in durability. The structure comprises a cave interior lateral ditch (50), a longitudinal drainage blind tube (41) and a drainage tube (42) arranged in a longitudinal spaced manner, wherein two ends of the drainage tube (42) are communicated with the cave interior lateral ditch (50) and the longitudinal drainage blind tube (41) respectively. A network waterproof and drainage plate (10) is arranged between a tunnel preliminary bracing (20) and a tunnel secondary lining (30), and is provided with a plurality of vertical drainage channels (11) arranged in a longitudinal spaced manner and a plurality of longitudinal drainage channels (12) arranged in a vertical spaced manner, the vertical drainage channels (11) and the longitudinal drainage channels (12) sink downwards in respective to the upper plate face of the network waterproof and drainage plate (10) and are staggered to form a network shape, and the lower ends of the vertical drainage channels (11) are communicated with the longitudinal drainage blind tube (41).

Description

The tunneled network waterproof/drainage structure

Technical field

The utility model relates to railway tunnel, highway tunnel, municipal tunnel, particularly the tunneled network waterproof/drainage structure between tunnel preliminary bracing and the secondary lining.

Background technology

At present, construction of tunnel is built according to the anti-draining principle of " based on row " mostly, for satisfying the waterproof requirement of tunnel function of use, all lays splash guard between tunnel preliminary bracing and the secondary lining on the one hand; Simultaneously for discharging secondary lining underground water behind, avoid or reduce hydraulic pressure to the detrimental effect of liner structure, generally vertically every a determining deviation hoop draining blind pipe is set along the tunnel.There is following problem in above-mentioned anti-drain structure: first, since the hoop blind pipe along the tunnel every a determining deviation setting, underground water between the hoop blind pipe has only by seepage flow just can enter the discharge of hoop blind pipe, therefore there is hydraulic pressure behind in lining cutting between the hoop blind pipe, and the liner structure weak link ftractures because the hydraulic pressure effect causes sometimes, percolating water even structural system unstable failure.The second, the hoop blind pipe is stopped up by sand setting, crystal easily, because it is single drainage channel, in case stop up or the drainability deficiency, lining cutting underground water behind can not in time be discharged, and underground water will produce the hydraulic pressure effect to liner structure, cause the liner structure cracking, even unstable failure.The 3rd, the material of splash guard is generally macromolecular materials such as EVA, ECB, PE, and durability is difficult to reach the construction of tunnel requirement in 100 years application life, can't change or safeguard in case splash guard loses efficacy, and will influence the tunnel function of use like this.

The utility model content

The purpose of this utility model provides a kind of tunneled network waterproof/drainage structure, can solve lining cutting behind hydraulic pressure and the local back lining cutting underground water emission problem behind that stops up of drainage channel between drainage channel effectively, can satisfy construction of tunnel function of use waterproof requirement well, and good endurance.

It is as follows that the utility model solves this technical problem the technical scheme that adopts:

Tunneled network waterproof/drainage structure of the present utility model, comprise the hole medial sulcus, the drainage tube that longitudinal drainage blind pipe and longitudinal separation arrange, the two ends of drainage tube respectively with the hole medial sulcus, the connection of longitudinal drainage blind pipe communicates, it is characterized in that: the anti-band drain of network is set between the preliminary bracing of described tunnel and the Tunnel Second Lining, the anti-band drain of this network has the vertical longitudinal drainage groove that arranges at interval of some vertical drainage grooves that longitudinally arrange at interval and edge, each vertical drainage groove, the longitudinal drainage groove is recessed with respect to the upper face of the anti-band drain of network, and staggered formation is latticed, and the lower end of each vertical drainage groove communicates with the longitudinal drainage blind pipe.

The beneficial effects of the utility model are to have solved lining cutting behind hydraulic pressure and the local back lining cutting underground water emission problem behind that stops up of drainage channel between drainage channel effectively; Behind the anti-band drain ageing failure, because lining cutting forms concrete grid drainage channel behind, can realize that lining cutting behind underground water does not have pressure naturally and puts, moulded lining can satisfy construction of tunnel function of use waterproof requirement from waterproof, has solved the endurance issues of at present anti-drainage; Prevent between drainage channel that band drain and mould are built two lining concrete and preliminary bracing spray concrete is closely connected, guaranteed structure stress; On-the-spot anti-drainage construction technology difficulty reduces, operation is simplified, and construction quality is secure.

Description of drawings

This manual comprises following seven width of cloth accompanying drawings:

Fig. 1 is the sectional schematic diagram of the utility model tunneled network waterproof/drainage structure;

Fig. 2 is the routing of water drainage schematic diagram of the utility model tunneled network waterproof/drainage structure;

Fig. 3 is the vertical view of the anti-band drain of the utility model tunneled network network that waterproof/drainage structure adopts;

Fig. 4 is the sectional drawing along A-A line among Fig. 3;

Fig. 5 is the sectional drawing along B-B line among Fig. 3;

Fig. 6 is the enlarged diagram of Local C among Fig. 4;

Fig. 7 is the enlarged diagram of local D among Fig. 5.

Toponym and institute's correspondence markings among the figure: network is prevented band drain 10, vertical drainage groove 11, longitudinal drainage groove 12, tunnel preliminary bracing 20, Tunnel Second Lining 30, longitudinal drainage blind pipe 41, drainage tube 42, hole medial sulcus 50.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified.

With reference to Fig. 1, Fig. 2 and Fig. 3, Fig. 4, Fig. 5, tunneled network waterproof/drainage structure of the present utility model, comprise the drainage tube 42 that hole medial sulcus 50, longitudinal drainage blind pipe 41 and longitudinal separation arrange, the two ends of drainage tube 42 are connected with hole medial sulcus 50, longitudinal drainage blind pipe 41 respectively and communicate.The anti-band drain 10 of network is set between described tunnel preliminary bracing 20 and the Tunnel Second Lining 30, the anti-band drain 10 of this network has the vertical longitudinal drainage groove 12 that arranges at interval of some vertical drainage grooves 11 that longitudinally arrange at interval and edge, each vertical drainage groove 11, longitudinal drainage groove 12 are recessed with respect to the upper face of the anti-band drain 10 of network, and staggered formation is latticed, and the lower end of each vertical drainage groove 11 communicates with longitudinal drainage blind pipe 41.With reference to Fig. 1, anti-band drain 10 upper faces of described network and tunnel preliminary bracing 20 are built 30 of the Tunnel Second Lining that form near, mould and are prevented band drain 10 lower faces near network.

Each vertical drainage groove 11 is with the passage of underground water ejectment to tunnel longitudinal drainage blind pipe 41, the effect of longitudinal drainage groove 12 is that ejectment is because the underground water between vertical drainage groove 11 local drainability deficiencies or impeded drainage and the vertical drainage groove 11, can effectively underground water be collected in the lining cutting longitudinal drainage blind pipe 41 behind by vertical drainage groove 11, longitudinal drainage groove 12, and drain into hole medial sulcus 50 by drainage tube 42.Per 10～the 20m of drainage tube 42 common longitudinal separations arranges one.

Compare with existing tunnel waterproof/drainage structure (splash guard+hoop french drain+nonwoven), the utility model thoroughly solves lining cutting behind hydraulic pressure and the local back lining cutting underground water emission problem behind that stops up of drainage channel between drainage channel, behind the anti-band drain ageing failure, because lining cutting forms concrete grid drainage channel behind, can realize that lining cutting behind underground water does not have pressure naturally and puts, moulded lining can satisfy construction of tunnel function of use waterproof requirement from waterproof, has solved the endurance issues of at present anti-drainage.Prevent between drainage channel that band drain and mould are built two lining concrete and preliminary bracing spray concrete is closely connected, guaranteed structure stress.On-the-spot anti-drainage construction technology difficulty reduces, operation is simplified, and construction quality is secure.

In the anti-band drain of tunneled network of the present utility model, the spacing that the spacing that each vertical drainage groove is 11, each longitudinal drainage groove are 12 should be suitable, to guarantee that the anti-band drain of network can guarantee can well contact between tunnel preliminary bracing 20 and the Tunnel Second Lining 30, not because of pressure from surrounding rock or groundwater pressure with the anti-band drain conquassation of network and influence country rock and two overall stabilities that serve as a contrast.The thickness of the anti-band drain 10 of the width of vertical drainage groove 11, longitudinal drainage groove 12, height and network should be suitable, make the existing certain drainability of drainage channel, satisfying again simultaneously in two lining concrete pouring construction processes not can the conquassation because of concrete vibration and gravity pressure.

With reference to Fig. 3 to Fig. 7 Fig. 5, for ease of producing, each vertical drainage groove 11 is parallel to each other, and each longitudinal drainage groove 12 is parallel to each other, and the plane of structure of vertical drainage groove 11, longitudinal drainage groove 12 is semicircle.

Some principles and the function of the above the utility model tunneled network waterproof/drainage structure that just explains through diagrams, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.

Claims

1. tunneled network waterproof/drainage structure, comprise hole medial sulcus (50), the drainage tube (42) that longitudinal drainage blind pipe (41) and longitudinal separation arrange, the two ends of drainage tube (42) respectively with hole medial sulcus (50), longitudinal drainage blind pipe (41) connection communicates, it is characterized in that: also comprise the anti-band drain (10) of the network that is arranged between tunnel preliminary bracing (20) and the Tunnel Second Lining (30), this network is prevented the longitudinal drainage groove (12) that band drain (10) has some vertical drainage grooves (11) that longitudinally arrange at interval and arranges along vertical interval, each vertical drainage groove (11), longitudinal drainage groove (12) is recessed with respect to the upper face of the anti-band drain of network (10), and staggered formation is latticed, and the lower end of each vertical drainage groove (11) communicates with longitudinal drainage blind pipe (41).

2. tunneled network waterproof/drainage structure as claimed in claim 1, it is characterized in that: described network prevents that band drain (10) upper face and tunnel preliminary bracing (20) build the Tunnel Second Lining (30) that forms then near anti-band drain (10) lower face of network near, mould.

3. tunneled network waterproof/drainage structure as claimed in claim 1, it is characterized in that: described each vertical drainage groove (11) is parallel to each other, and each longitudinal drainage groove (12) is parallel to each other, and the plane of structure of vertical drainage groove (11), longitudinal drainage groove (12) is semicircle.