Damage-free mounting structure for waterproof plate in drainage pipe area in tunnel

Abstract

The utility model provides a waterproof plate damage-free installation structure of a drainage pipe area in a tunnel. The waterproof plate damage-free installation structure comprises a tunnel wall, a first waterproof plate strip, a second waterproof plate strip, a waterproof plate and a drainage pipe. The top ends of the first waterproof plate strip and the second waterproof plate strip are fixed on the hole wall; the lower end of the first waterproof plate strip is fixed on the hole wall after winding the drainage pipe from outside to inside; the waterproof plate integrally covers the first waterproof plate strip and the second waterproof plate strip, and the lower end of the waterproof plate winds the drain pipe from outside to inside to wrap the drain pipe; the lower end of the second waterproof plate strip is arranged by winding the drainage pipe and the winding part of the waterproof plate from inside to outside, and the free end of the lower end of the second waterproof plate strip is turned upwards to the outer surface of the waterproof plate and is welded and fixed to the outer surface of the waterproof plate. The mounting structure has the advantages of effectively preventing the waterproof plate from being damaged, and ensuring simple mounting and waterproof effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy construction technical field, specifically speaking, relate to a kind of waterproof board installation structure of tunnel inner drainage pipe area without damage. BACKGROUND

[0002] In the field of water conservancy projects, pumped storage power station projects, traffic engineering and the like, a tunnel is a common structure, and tunnel lining is also a common form of engineering support. Tunnel lining usually faces the problem of waterproofing and drainage. At present, waterproofing and drainage of tunnels are mostly achieved by using waterproof boards and subsequent grouting. Since tunnels are generally in the shape of a city gate or a horseshoe, the waterproof boards are fixed along the contour line of the tunnel. The waterproof boards are mostly fixed by internal suction, that is, non-woven geotextile is laid on the surface of the initial support structure inside the waterproof board, then a circular adhesive film with a concave middle and a low periphery is fixed at a designed interval by using nails, and then the waterproof board is laid and fixed by hot melt welding of the waterproof board and the circular adhesive film.

[0003] This waterproof board construction method is relatively convenient for construction of the side wall and the top of the tunnel. When encountering a place with serious water seepage, such as a drainage pipe area, a nail fixing method is generally used, which can easily cause damage to the waterproof board. The drainage pipe is usually arranged at the bottom end of the tunnel side wall, and the upper end of the waterproof board can be continuously welded and fixed with other waterproof boards, but the bottom end of the waterproof board is difficult to fix. At present, nails are mostly used for fixing, which can damage the waterproof board and reduce the waterproof performance of the waterproof board. The method of using the aforementioned circular adhesive film to fix the waterproof board can increase construction cost and is not easy to fix firmly at the bottom.

[0004] Therefore, how to use existing materials to achieve damage-free and rapid construction of waterproof boards is an important problem to be solved. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at the deficiencies of the prior art, and provides a waterproof board installation structure for a tunnel inner drainage pipe area, which can effectively avoid damage to the waterproof board and ensure simple installation and waterproof effect.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a waterproof board installation structure for a tunnel inner drainage pipe area, which comprises a tunnel wall, a first waterproof board strip, a second waterproof board strip, a waterproof board and a drainage pipe.

[0007] The top end of the first waterproof board strip and the second waterproof board strip is fixed to the tunnel wall.

[0008] The lower end of the first waterproof board strip is fixed to the tunnel wall after being wound around the drainage pipe from the outside to the inside.

[0009] The waterproof plate is entirely covered outside the first waterproof strip and the second waterproof strip, and the lower end of the waterproof plate is wound around the drain pipe from outside to inside to wrap the drain pipe;

[0010] The lower end of the second waterproof strip is wound around the drain pipe and the winding part of the waterproof plate from inside to outside, and the free end of the lower end of the second waterproof strip is turned up to the outer surface of the waterproof plate and welded and fixed with the outer surface of the waterproof plate.

[0011] Preferably, the free end of the lower end of the first waterproof strip is fixed on the wall by nailing.

[0012] Preferably, the free end of the lower end of the first waterproof strip is turned up to partially overlap with the lower part of the first waterproof strip after being wound around the drain pipe, and the outer layer of the first waterproof strip in the partially overlapping area is also fixed on the wall by nailing.

[0013] Preferably, the free end of the lower end of the waterproof plate is welded and fixed with the inner side of the waterproof plate after being wound around the drain pipe.

[0014] Preferably, the upper part of the waterproof plate is welded and fixed with the second waterproof strip and / or the first waterproof strip.

[0015] Preferably, the welding area of the free end of the lower end of the second waterproof strip overlaps with the welding area of the free end of the lower end of the waterproof plate.

[0016] Preferably, the lower part of the second waterproof strip close to the unwound area of the drain pipe is fixed on the wall by nailing.

[0017] Preferably, the first waterproof strip is shorter than the second waterproof strip.

[0018] Preferably, the first waterproof strip and the second waterproof strip are arranged in groups, and the interval between adjacent groups is ≤85cm.

[0019] Preferably, the length of the first waterproof strip and the second waterproof strip is between 30-50cm.

[0020] The utility model discloses relative prior art has substantial characteristics and progress, specifically speaking, the utility model installs waterproof board when being close to the lower area of tunnel of drain pipe, in order to avoid the breakage of waterproof board, increases first waterproof board strip and second waterproof board strip, wherein, first waterproof board strip is used to hold up drain pipe from bottom and carries out the pre -fixing of drain pipe, and the partial of first waterproof board strip is fixed on the cave wall through the shot nail, then waterproof board is from the outside winding drain pipe, and second waterproof board strip is used to from inside to the outer end of waterproof board, and is welded fixed with waterproof board, and the effect of second waterproof board strip is used for fixing waterproof board, avoids the shot nail on waterproof board, and after installing like this, the lower end of waterproof board is completely wrapped drain pipe, and all structures of waterproof board itself are all shot nails, are fixed through welding, can guarantee waterproof effect.

[0021] Further, first waterproof board strip and second waterproof board strip can be fixed on the cave wall through the shot nail, because they play the main role of fixing drain pipe and fixing waterproof board in the process, and do not play the waterproof effect of key area. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the position schematic drawing of waterproof board damage-free mounting structure of tunnel inner drain pipe area in the utility model.

[0023] Figure 2 It is the laying principle drawing of waterproof board damage-free mounting structure of tunnel inner drain pipe area in the utility model.

[0024] Figure 3 It is the installation detail drawing of first waterproof board strip in the utility model.

[0025] Figure 4 It is the installation detail drawing of second waterproof board strip and waterproof board in the utility model.

[0026] In the drawing: 1. cave wall, 2. first waterproof board strip, 3. second waterproof board strip, 4. waterproof board, 5. drain pipe, 6. position line, 7. shot nail, 8. welding position, A1. the installation detail drawing of first waterproof board strip, A2. the installation detail drawing of second waterproof board strip and waterproof board. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model is described in further detail below through specific embodiments.

[0028] As Figures 1-4 shown, a waterproof board damage-free mounting structure of tunnel inner drain pipe area, including cave wall 1, first waterproof board strip 2, second waterproof board strip 3, waterproof board 4 and drain pipe 5.

[0029] The top end of the first waterproof board strip 2 and the second waterproof board strip 3 is fixed to the hole wall, and can be fixed by nailing, wherein the material of the first waterproof board strip 2 and the second waterproof board strip 3 can be from the waste material of waterproof board, and the length of the first waterproof board strip 2 and the second waterproof board strip 3 is between 30-50 cm, and other sizes can be selected. In the embodiment, the first waterproof board strip 2 is shorter than the second waterproof board strip 3, and the size of the first waterproof board strip 2 is 5 cm wide and 35 cm long, and the size of the second waterproof board strip 3 is 5 cm wide and 45 cm long.

[0030] The lower end of the first waterproof board strip 2 is wound around the drain pipe from the outside to the inside, and is fixed to the hole wall 1 by nailing 7, and in the embodiment, in order to improve the stability of the fixing, the lower end of the first waterproof board strip 2 is wound around the drain pipe 5 and then turned up to partially overlap the lower part of the first waterproof board strip 2, and the outer layer of the first waterproof board strip 2 in the partially overlapping area is also fixed to the hole wall by nailing 7, that is, in the partially overlapping area, the inner layer is fixed by nailing first, and the outer layer is fixed by nailing again, as shown in Figure 3 , two rows of nails are shown by deep and shallow interlacing, so that the connection between the bottom end and the hole wall is firm, and the drain pipe 5 is partially supported.

[0031] The waterproof board 4 is a component that mainly plays a waterproof role, and it covers the outside of the first waterproof board strip 2 and the second waterproof board strip 3, and the lower end of the waterproof board 4 is wound around the drain pipe 5 from the outside to the inside to wrap the drain pipe 5, and in the embodiment, the lower end of the waterproof board 4 is wound around the drain pipe 5 and then welded and fixed to the inner side of the waterproof board 5, and the welding position is the overlapping position of the waterproof board 4.

[0032] The lower end of the second waterproof board strip 3 is wound around the drain pipe 5 and the winding part of the waterproof board 4 from the inside to the outside, and the lower end of the second waterproof board strip 3 is turned up to the outer surface of the waterproof board 4 and is welded and fixed to the outer surface of the waterproof board 4, and in the preferred embodiment, the welding position is also selected outside the welding position of the lower end of the waterproof board 4, and the thickness of this position will increase significantly, and the structural stability is stronger, as shown in Figure 4 , the welding position 8 is a specific position.

[0033] Since the lower end of the second waterproof board strip 3 is not fixed, the lower part of the second waterproof board strip 3 near the unwound area of the drain pipe 5 is fixed to the hole wall 1 by nailing, so that the lower end of the second waterproof board strip 3 can be relatively fixed.

[0034] The waterproof plates on the top and upper part of the side wall of the tunnel are laid and welded in sequence in the manner mentioned in the background art, and only the lowermost waterproof plate 4 needs to be arranged around the drain pipe 5, and is implemented according to the scheme in the embodiment.

[0035] The upper part of the waterproof plate 4 is welded and fixed with the second waterproof plate strip 3 and / or the first waterproof plate strip 2 in addition to being welded with the circular film and the next waterproof plate, forming a local welding and fixing point.

[0036] Based on a drain pipe 5, the first waterproof plate strip 2 and the second waterproof plate strip 3 are arranged in groups, and the interval between adjacent groups is ≤85cm.

[0037] Specific construction principle is explained as follows:

[0038] The top and side wall and other conventional positions of the tunnel still use the scheme in the background art for laying, and the pretreatment work of the wall needs to lay non-woven geotextile.

[0039] Before implementing the scheme in the embodiment, first mark the position line 6 of the installation of the lower end waterproof plate according to the design drawing, as shown in Figure 2 The height of the top end fixed by the first waterproof plate strip 2 and the second waterproof plate strip 3 is measured 15cm upward from the lowermost position line.

[0040] The waterproof plate strip is arranged in two groups with an interval of 85cm, and in other embodiments, the interval width is mainly determined according to the size of the waterproof plate 4.

[0041] First, the lower end of the first waterproof plate strip 2 is wound from the outside to the inside of the drain pipe, and the inside is fixed on the wall with a nail, and the overlapping area of the outside of the first waterproof plate strip 2 is fixed again with a nail.

[0042] Then, the upper end of the waterproof plate is fixed by welding, in addition to being welded with the next structure, it is also welded and fixed with the first waterproof plate strip and the second waterproof plate.

[0043] The lower end of the waterproof plate 4 is wound from the outside to the inside of the drain pipe 5, and the overall length of the waterproof plate 4 is observed, if the length is longer, the excess part is cut off, then the free end of the lower end of the waterproof plate 4 is wound and folded to overlap with the inside of the waterproof plate 4, and the overlapping part is welded and fixed.

[0044] The lower end of the second waterproof plate strip 3 is wound from the inside to the outside of the drain pipe, and the inside is close to the area above the drain pipe, which is first fixed on the wall with a nail, then the free end of the lower end is turned up to the outside of the waterproof plate 4, and is welded with the waterproof plate 4, thus completing the installation and fixation of the waterproof plate 4.

[0045] The waterproof plate 4 is fixed by welding during the whole installation process, and no nailing fixing mode is adopted, so as to ensure the effectiveness and stability of the waterproof plate 4 and achieve the purpose of damage-free installation.

[0046] As for the connection of horizontally adjacent waterproof plates 4, the traditional connection mode such as welding can be adopted.

[0047] In the embodiment, the welding mode is hot melting welding.

[0048] The embodiment is based on the trial of the Jiufengshan Pumped Storage Power Station project in Huixian, Henan. The power station is installed with 6 vertical shaft single-stage mixed-flow reversible water pump turbines with a single-machine capacity of 350 MW, and the total installed capacity is 2100 MW with a rated generating water head of 682 m. The project is a large (1) type first-class project, and the main permanent buildings are designed according to the first-class buildings, and the secondary permanent buildings are designed according to the third-class buildings. The power station is mainly composed of upper reservoir, lower reservoir, water diversion system, underground powerhouse, ground switch station, water supply engineering and other buildings.

[0049] The lining length of the Y4 road 1# tunnel is 320 m, the length of the 2# tunnel is 180 m, the length of the 3# tunnel is 280 m, the lining length of the 4# tunnel is 400 m, the length of the 5# tunnel is 230 m, and the lining length of the 6# tunnel is 380 m. The cumulative lining length is 1790 m.

[0050] By adopting the method, under the condition of using existing waste materials, the damage-free and rapid installation and fixation of the tunnel lining waterproof plate are realized, the construction efficiency is improved, and the construction quality is ensured.

[0051] By adopting the method for waterproof plate installation and fixation, the material of the cut-off waterproof plate can be used without increasing the material cost, and the construction efficiency can be improved, so as to save the construction period and cost. On the other hand, the most important thing for waterproof plate construction is to be complete and not damaged, and the method can achieve this effect. The tunnel lining of the project is about 1800 m, and it is calculated that the labor cost for waterproof plate construction can be saved by about 200,000 yuan.

[0052] Finally, it should be noted that: the above has made a detailed description of the preferred embodiments of the patent, but the patent is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the patent.

Claims

1. A waterproofing sheet damage-free mounting structure for a tunnel inner drain pipe area, characterized by: The hole wall, the first waterproof batten strip, the second waterproof batten strip, the waterproof plate and the drain pipe are included. The top end of the first waterproof batten strip and the second waterproof batten strip is fixed on the hole wall. The lower end of the first waterproof batten strip is fixed on the hole wall after winding the drain pipe from outside to inside. The waterproof plate covers the outside of the first waterproof batten strip and the second waterproof batten strip as a whole, and the lower end of the waterproof plate wraps the drain pipe after winding the drain pipe from outside to inside. The lower end of the second waterproof batten strip is arranged to wind the drain pipe and the wrapping part of the waterproof plate from inside to outside, and the free end of the lower end of the second waterproof batten strip is turned up to the outer surface of the waterproof plate and is welded and fixed with the outer surface of the waterproof plate.

2. A waterproofing membrane installation structure for a tunnel inner drain pipe area according to claim 1, characterized in that: The free end of the lower end of the first waterproof batten strip is fixed on the hole wall by shooting nails.

3. A waterproofing membrane installation structure for a tunnel inner drain pipe area according to claim 2, characterized in that: The free end of the lower end of the first waterproof batten strip is turned up to partially overlap with the lower part of the first waterproof batten strip after winding the drain pipe, and the outer layer of the first waterproof batten strip in the partially overlapping area is also fixed on the hole wall by shooting nails.

4. The waterproofing membrane installation structure for a tunnel inner drain pipe area according to claim 1, wherein: The free end of the lower end of the waterproof plate is welded and fixed with the inner side of the waterproof plate after winding the drain pipe.

5. A waterproofing membrane damage-free mounting structure for a tunnel drain pipe region according to claim 4, characterized in that: The upper part of the waterproof plate is welded and fixed with the second waterproof batten strip and / or the first waterproof batten strip.

6. A waterproofing membrane damage-free mounting structure for a tunnel drain pipe area according to claim 5, characterized in that: The welding area of the free end of the lower end of the second waterproof batten strip and the welding area of the free end of the lower end of the waterproof plate overlap.

7. A waterproofing membrane damage-free mounting structure for a tunnel drain pipe region according to claim 6, characterized in that: The un-wound area of the lower part of the second waterproof batten strip close to the drain pipe is fixed on the hole wall by shooting nails.

8. A waterproofing membrane damage-free mounting structure for a tunnel drain pipe region according to claim 7, characterized in that: The first waterproof batten strip is shorter than the second waterproof batten strip.

9. A waterproofing membrane installation structure for a tunnel inner drain pipe area according to claim 1, wherein: The first waterproof batten strip and the second waterproof batten strip are arranged in groups, and the interval between adjacent groups is ≤85cm.

10. A waterproofing membrane installation structure for a tunnel inner drain pipe area according to claim 1, characterized in that: The length of the first waterproof batten strip and the second waterproof batten strip is between 30-50cm.

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