Device for reserving groove of water receiving box of deformation joint of subsurface tunnel

Abstract

The utility model provides a device for reserving a groove of a water receiving box of a deformation joint of a subsurface excavated tunnel, which comprises a shaping device fixed on the surface of a secondary lining trolley through a fixing device. The shaping device comprises a rubber strip and a protective jacket, the section of the rubber strip is rectangular, the size of the rubber strip is the same as that of a water receiving box groove, the surface of the rubber strip is covered with the protective jacket and sealed by super glue to form the shaping device, and the protective jacket is a thin iron sheet; the fixing device comprises a bolt and a rib belt. The water receiving box effectively solves the problems of large reserving difficulty, poor quality and high later-stage repair cost of the water receiving box of the deformation joint of the underground excavated tunnel, and has the characteristics of simplicity and convenience in assembly and disassembly and one-time forming, namely one-time forming.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction technology, especially relate to a device for excavating tunnel deformation joint water receiving box groove reservation. BACKGROUND

[0002] Tunnel engineering because of the importance of structure, design service life is usually 100 years, its section type is various, has rectangle, round, horseshoe shape etc. According to different construction conditions can adopt open cut and tunneling construction method, to avoid the structure to produce uneven settlement and shrinkage crack, should set up deformation joint in the construction process. But because deformation joint is in disrepair for many years, and tunnel is in groundwater environment for a long time, there is leakage hidden danger, to avoid the adverse effects of deformation joint leakage on tunnel operation, deformation joint outside should install water receiving box, and the seepage is led to the drainage ditch on both sides of tunnel.

[0003] Water receiving box usually adopts nail shooting and is fixed in the groove at deformation joint, and both sides are sealed with sealant. The deformation joint groove of excavating tunnel is generally reserved by template pressing strip or cut groove in later period, but when using template pressing strip, installation and fixation are difficult, concrete pouring is easy to deform, the recess forming effect is poor, and further finishing is needed, especially for arc-shaped tunnel, template pressing strip is not applicable. In addition, if cutting groove in later period, it needs to set up support to cut groove, chisel, which is difficult, has high safety risk, high labor cost, and the concrete end surface is uneven, and the sealing property of water receiving box after installation is poor.

[0004] To solve the above problems, the utility model designs a device for excavating tunnel deformation joint water receiving box groove reservation. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a device for excavating tunnel deformation joint water receiving box groove reservation, which solves the problems of large construction difficulty, poor forming quality and high repair cost of excavating tunnel deformation joint water receiving box groove reservation.

[0006] The utility model achieves the above technical objective through the following technical means.

[0007] A device for excavating tunnel deformation joint water receiving box groove reservation, comprising a shaping device, the shaping device is fixed in the deformation joint water receiving box groove position of the end part of two lining trolleys through a fixing device;The shaping device comprises a rubber strip and a protective sleeve, the cross section of the rubber strip is rectangular, and the size is same with that of the water receiving box groove, and the surface of the rubber strip is covered with the protective sleeve;The fixing device comprises a bolt and a rib belt.

[0008] Further, the rib belt is located on the upper surface of the protective cover, and a plurality of mounting holes for mounting bolts are uniformly arranged on the rib belt, the protective cover and the rubber strip along the length direction, and the same number of mounting holes for mounting bolts are arranged on the two lining trolley panels at the mounting position of the shaping device.

[0009] Further, the rib belt, the protective cover and the rubber strip are uniformly arranged with a hole spacing of 50cm.

[0010] Further, the protective cover is made of thin iron sheet.

[0011] Further, the rubber strip is covered with the protective cover and sealed by strong glue to form the shaping device.

[0012] Further, the rib belt is an aluminum alloy strip.

[0013] The utility model has the following beneficial effects:

[0014] The utility model effectively solves the problems of large difficulty, poor quality and high cost of post-repair of the water receiving box groove reservation of the excavated tunnel deformation joint, and has the characteristics of simple installation and dismounting, one-time forming and one-time optimization.

[0015] The utility model provides a device for reserving the water receiving box groove, which is combined with the two lining trolleys to realize common installation and dismounting with the two lining trolleys, greatly reduces the construction difficulty of the water receiving box groove, and improves the construction efficiency; meanwhile, the device has uniform size, smooth surface and firm fixation, can effectively ensure one-time forming and one-time optimization of the quality of the water receiving box groove, avoids cutting and chiseling by setting up operation scaffolds in the later period, reduces the construction risk and construction cost, and ensures the installation and sealing quality of the water receiving box in the later period. DRAWINGS

[0016] Fig. 1 is a schematic view of the water receiving box groove of the excavated tunnel deformation joint.

[0017] Fig. 2 is a schematic view of the device for reserving the water receiving box groove of the excavated tunnel deformation joint.

[0018] Fig. 3 is a schematic view of the device for reserving the water receiving box groove.

[0019] Fig. 4 is a schematic view of the device for reserving the water receiving box groove.

[0020] Fig. 5 is a schematic view of the device for reserving the water receiving box groove.

[0021] Fig. 6It is fixed device schematic view of water receiving box groove reservation device of the utility model.

[0022] In the drawing: 1 - secondary lining; 2 - deformation joint; 3 - water receiving box groove; 4 - secondary lining trolley; 51 - shaping device; 511 - rubber strip; 512 - thin iron sheet; 513 - strong glue; 52 - fixed device; 521 - bolt; 522 - rib belt. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and specific embodiments, but the protection scope of the utility model is not limited to this.

[0024] As Figs. 1 to 6 Indicated, the utility model discloses the device for the excavation tunnel deformation joint water receiving box groove reservation, including shaping device 51, fixed device 52, shaping device 51 is fixed on the surface of secondary lining trolley 4 through fixed device 52.

[0025] As Figs. 1 to 6 Indicated, shaping device 51 is the key device of reserving formation deformation joint 2 water receiving box groove 3, including rubber strip 511 and protective sheath;The section of rubber strip 511 is rectangle, and the size is same with the size of water receiving box groove 3, material is soft but not easy to compress, can be applicable to different shapes of excavation tunnel, rubber strip 511 surface covers protective sheath and utilizes strong glue 513 to seal, forms shaping device 51, and protective sheath can effectively protect rubber strip 511;Protective sheath is thin iron sheet 512, easy to wrap installation, avoid damaging when rubber strip 511 repeatedly installs and removes and is corroded by concrete, can improve the quality of groove molding simultaneously.

[0026] As Figs. 1 to 6 Indicated, fixed device 52 includes bolt 521 and rib belt 522;Rib belt 522 is aluminum alloy strip, can increase the longitudinal rigidity of shaping device 51, avoid deformation, guarantee reinforcing effect, and rib belt 522 can reduce the damage of bolt 521 repeatedly installing and removing to thin iron sheet;Shaping device 51 is fixed in the deformation joint 2 water receiving box groove 3 position of secondary lining trolley 4 end through fixed device 52.

[0027] The construction method of the device for the excavation tunnel deformation joint water receiving box groove reservation, including the following processes:

[0028] S1: rubber strip 511 is wrapped with thin iron sheet 512, is fixed and protected, and is sealed with strong glue 513, and shaping device 51 is formed;

[0029] S2: rib belt 522 is placed in the middle position of rubber strip 511, and is commonly holed with rubber strip 511 along the length direction of rib belt 522 at intervals of 50cm.

[0030] S3: according to the position of the water box groove 3 of the deformation joint 2, the rib belt 522 is placed on the surface of the secondary lining trolley 4, and the panel of the secondary lining trolley 4 is holed along the holed position of the rib belt 522;

[0031] S4: the shaping device 51 is fixed on the surface of the secondary lining trolley 4 through the fixing device 52;

[0032] S5: the secondary lining trolley 4 is in place, and the end head template is blocked;

[0033] S6: the secondary lining 1 concrete is poured;

[0034] S7: after the secondary lining 1 concrete strength reaches the requirement, the mold is removed, and the shaping quality of the water box groove 3 is checked;

[0035] S8: the water box of the deformation joint is installed.

[0036] The embodiment is a preferred implementation manner of the utility model, but the utility model is not limited to the above implementation manner, any obvious improvement, replacement or modification made by the person skilled in the art without departing from the essential content of the utility model belongs to the protection scope of the utility model.

Claims

1. A device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel, characterized in that: The present invention comprises a shaping device (51), wherein the shaping device (51) is fixed to the position of the water receiving box groove (3) at the end deformation joint (2) of the second lining trolley (4) through a fixing device (52); the shaping device (51) comprises a rubber strip (511) and a protective jacket, the cross section of the rubber strip (511) is rectangular and the size is the same as the size of the water receiving box groove (3), and the surface of the rubber strip (511) is covered with the protective jacket; the fixing device (52) comprises a bolt (521) and a ribbed belt (522).

2. The device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel according to claim 1, characterized in that: The ribbed belt (522) is located on the upper surface of the protective jacket. The ribbed belt (522), the protective jacket and the rubber strip (511) are provided with a plurality of mounting holes for mounting bolts (521) at even intervals along the length direction. The panel of the second lining trolley (4) at the installation position of the shaping device (51) is also provided with the same number of mounting holes for mounting bolts (521).

3. The device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel according to claim 2, characterized in that: The spacing between the openings on the ribbed belt (522), the protective jacket, and the rubber strip (511) is 50 cm.

4. The device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel according to claim 1, characterized in that: The protective jacket is made of thin iron sheet (512).

5. The device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel according to claim 1, characterized in that: The surface of the rubber strip (511) is covered with a protective jacket and sealed with strong glue (513) to form a shaping device (51).

6. The device for reserving a groove for a water box in a deformation joint of a dark excavated tunnel according to claim 1, characterized in that: The ribbed strip (522) is an aluminum alloy strip.

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