CN212898618U - A prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department - Google Patents
A prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department Download PDFInfo
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- CN212898618U CN212898618U CN202021183705.9U CN202021183705U CN212898618U CN 212898618 U CN212898618 U CN 212898618U CN 202021183705 U CN202021183705 U CN 202021183705U CN 212898618 U CN212898618 U CN 212898618U
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Abstract
The utility model discloses a water-proof drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department, install in tunnel construction joint department, including the draw-in groove, the tapetum, semicircle hose and geotechnological cloth, the draw-in groove is fixed between two linings of preceding one board in the tunnel construction joint and two linings of back one board, the open end of draw-in groove up and the bottom of draw-in groove be located the lower terminal surface of tunnel construction joint and the central line of draw-in groove aligns with the central line of tunnel construction joint, the tapetum is attached to semicircle hose internal surface, the semicircle hose is fixed in the draw-in groove and the top of semicircle hose top and draw-in groove and two linings in the preceding one board in the tunnel and the up end of two linings in the back one board are located the coplanar, geotechnological cloth is fixed and is just covers the draw. The invention has simple structure and convenient installation, and effectively improves the water-proof and drainage capacity at the joint of the two linings.
Description
Technical Field
The utility model relates to a drainage technical field is prevented in the tunnel, especially a prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department.
Background
In recent years, the traffic infrastructure of China is rapidly developed. The number of the constructed tunnels is more and more, the mileage is also continuously increased, and the tunnels are under the ground and naturally influenced by water; in the built tunnel, the defect of tunnel water leakage is mostly generated and is not effectively solved. The water leakage and the disease are slight, the service level of the project is reduced, and the operation safety is seriously threatened. Engineering experience shows that construction joints (including expansion joints and settlement joints) of a concrete structure are weak links of tunnel waterproofing and naturally become frequent parts of water leakage. For the waterproof facilities at construction joints, currently, the back-attached rubber waterstop and the middle-embedded rubber waterstop are commonly adopted in engineering, the back-attached rubber waterstop is arranged on the back of the lining structure, and the middle of the lining structure is arranged in the middle of the lining structure, but an ideal waterproof effect is not obtained.
In addition, in the southwest area of China, the karst landform is widely distributed, another problem which must be considered naturally occurs, namely the defect that plasma compounds of calcium and magnesium in hard water are crystallized and separated out to block a drain pipe, after the drain pipe is blocked, a tunnel drainage system fails, the underground water level is increased, the pressure borne by a lining is increased, and when the pressure exceeds the bearing capacity of the lining, the lining is naturally damaged.
Disclosure of Invention
The utility model discloses a solve the problem that proposes in the above-mentioned background art, provide a prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
the utility model provides a prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department installs in tunnel construction joint department, including draw-in groove, tapetum, semicircle hose and geotechnological cloth, the draw-in groove is fixed between two linings of two preceding boards in the tunnel construction joint and the two linings of back board, and the open end of draw-in groove up and the bottom of draw-in groove are located the lower terminal surface of tunnel construction joint and the central line of draw-in groove aligns with the central line of tunnel construction joint, the tapetum flocking is in semicircle hose internal surface, the semicircle hose is fixed in the draw-in groove and the top of two linings of the top of semicircle hose top and draw-in groove and two linings in the preceding board in the tunnel and the up end of two linings in the back board are located the coplanar, geotechnological cloth is fixed at the up end of two linings in.
As a further technical scheme of the utility model, two sides of the top end of the clamping groove are provided with upper anchoring plates for anchoring in a front plate two lining and a rear plate two lining of the tunnel; and lower anchoring plates for anchoring in the front plate two linings and the rear plate two linings of the tunnel are arranged on two sides of the bottom end of the clamping groove.
As a further technical scheme of the utility model, the draw-in groove both sides wall is equipped with the dentate prominence that is used for two linings of anchor first board before the tunnel and two linings of back board.
As a further technical scheme of the utility model, go up anchor board and be equipped with the dentate prominence that is used for the anchor to line two lining of the preceding board in tunnel and two lining of back board down on the anchor board.
As a preferable technical solution of the present invention, the dentations are arranged at equal intervals, and the dentations on the upper anchoring plate are arranged in a step shape.
As the preferred technical scheme of the utility model, there is the contained angle between the terminal surface of two linings of anchor plate and the preceding board in tunnel and two linings in the back board down.
In a preferred embodiment of the present invention, the tooth-like projection has a transverse rib at an end thereof.
Compared with the prior art, the utility model discloses a prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department has following beneficial effect:
1. by the device, the construction logic that the construction joint is only waterproof and does not drain water in the prior art can be changed, water is isolated, and water flow is guided and drained, so that two purposes are achieved at one time;
2. by the device, the problem that the drain pipe is blocked due to the precipitation of crystals such as calcium ions and magnesium ions in the karst environment can be prevented, and the influence of secondary lining damage caused by the blockage of the drain pipe in the later period is avoided;
3. by the device, a back-attached water stop and a middle-buried water stop can be omitted, so that the working efficiency is improved, and the cost is saved;
4. by the device, the problem that the waterproof board is invalid due to insufficient experience of workers during installation of the original waterproof board can be solved;
5. through this device, can improve structural integrity, stability, durability.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an installation diagram of the present invention.
Fig. 4 is the utility model discloses a structure schematic diagram of tunnel construction joint department is installed to the draw-in groove.
In the figure: 1. a tooth-like protrusion; 101. a cross rib; 2. a card slot; 3. geotextile; 4. a fluff layer; 5. a semicircular hose; 6. an upper anchoring plate; 7. a lower anchoring plate; 8. and (5) constructing a joint in the tunnel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1 and 2, the water drainage preventing device for preventing crystal blockage at a tunnel construction joint of the embodiment is installed at a tunnel construction joint 8, and includes a clamping groove 2, a fluff layer 4, a semicircular hose 5 and geotextile 3, wherein the clamping groove 2 is fixed between a first plate two lining and a second plate two lining of a tunnel in the tunnel construction joint 8, an opening end of the clamping groove 2 faces upward, a bottom of the clamping groove 2 is located on a lower end surface of the tunnel construction joint 8, a center line of the clamping groove 2 is aligned with a center line of the tunnel construction joint 8, the fluff layer 4 is flocked on an inner surface of the semicircular hose 5, that is, fluff is perpendicular to the inner surface of the semicircular hose 5 and is arranged at equal intervals on the inner surface (upstream surface), the semicircular hose 5 is fixed in the clamping groove 2, and top ends of the semicircular hose 5 and the clamping groove 2 are located on the same plane with upper end surfaces of the first plate two lining and the second plate, the geotextile 3 is fixed on the upper end surfaces of the two linings of the front plate and the two linings of the rear plate of the tunnel and completely covers the clamping groove 2.
By installing the water-drainage preventing device for preventing crystallization blocking at the tunnel construction joint in the embodiment in the tunnel construction joint, the geotextile 3 can isolate water outside the construction joint 8, so that water in soil above the tunnel is prevented from entering the tunnel construction joint 8, and the waterproof capability of the tunnel construction joint is improved; due to the arrangement of the clamping groove 2, the fluff layer 4 and the semicircular hose 5, after the underground water reaches the gap between the waterproof board and the second lining through the tunnel waterproof board, the underground water flows into a tunnel drainage system through the semicircular hose 5 and is discharged out of the tunnel, so that the drainage capability at the tunnel construction joint 8 is improved; crystals separated out from the fluff layer 4 cannot stay for a long time, so that the problem of blocking the semicircular hose 5 is prevented, and the influence of damage to the two liners caused by blocking of the semicircular hose 5 in the later period is avoided.
As shown in fig. 1 and 2, in the actual use process, two sides of the top end of the slot 2 are provided with upper anchoring plates 6 for anchoring in the first plate and the second plate of the tunnel; two sides of the bottom end of the clamping groove 2 are provided with lower anchoring plates 7 which are used for anchoring in a front plate two lining and a rear plate two lining of the tunnel, and an included angle is formed between the lower anchoring plates 7 and the end faces of the front plate two lining and the rear plate two lining of the tunnel; two side walls of the clamping groove 2 are provided with dentations 1 which are used for anchoring in a front plate two lining and a rear plate two lining of the tunnel, and the end parts of the dentations 1 are provided with transverse ribs 101. The upper anchoring plate 6 and the lower anchoring plate 7 are provided with dentations 1 for anchoring in a front plate two lining and a rear plate two lining of the tunnel. The dentations 1 are arranged at equal intervals, and the dentations 1 on the upper anchoring plate 6 are arranged in a ladder shape. The upper anchoring plate 6, the lower anchoring plate 7 and the dentations 1 are arranged to ensure that the clamping grooves 2 are better fixed in the first plate and the second plate of the tunnel, and the whole device is prevented from displacement.
When the waterproof device is used, as shown in fig. 3 and 4, the clamping groove 2 is firstly installed in a tunnel construction joint, then the clamping groove 2 is anchored in a front plate two lining and a rear plate two lining of a tunnel through the upper anchoring plate 6, the lower anchoring plate 7 and the dentate protrusions 1, the semicircular hose 5 coated with the fluff layer 4 is fixed in the clamping groove 2, finally, the geotextile 3 is covered, the geotextile 3 is fixed on the upper end faces of the front plate two lining and the rear plate two lining of the tunnel to completely cover the clamping groove 2, the geotextile 3 can isolate water outside the construction joint, water in soil above the tunnel is prevented from entering the tunnel construction joint, and the waterproof capability of the tunnel construction joint is improved; due to the arrangement of the clamping groove 2, the fluff layer 4 and the semicircular hose 5, after the underground water reaches the gap between the waterproof board and the second lining through the tunnel waterproof board, the underground water flows into a tunnel drainage system through the semicircular hose 5 and is discharged out of the tunnel, so that the drainage capability at the construction joint of the tunnel is improved; crystals separated out from the fluff layer 4 cannot stay too long, and the influence of secondary lining damage caused by blockage of the semicircular hose 5 in the later period is avoided; in addition, the back-attached water stop and the middle-buried water stop are omitted, the working efficiency is improved, and the cost is saved.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (7)
1. A water-proof and drainage device for preventing crystallization and pipe blockage at a tunnel construction joint is arranged at the tunnel construction joint, it is characterized by comprising a clamping groove (2), a fluff layer (4), a semicircular hose (5) and geotextile (3), the clamping groove (2) is fixed between a front plate two lining and a rear plate two lining of the tunnel in the tunnel construction joint, the opening end of the clamping groove (2) faces upwards, the bottom of the clamping groove (2) is positioned on the lower end face of the tunnel construction joint, the central line of the clamping groove (2) is aligned with the central line of the tunnel construction joint, the fluff layer (4) is flocked on the inner surface of the semicircular hose (5), the semicircular hose (5) is fixed in the clamping groove (2), the top end of the semicircular hose (5) and the top end of the clamping groove (2) are positioned on the same plane with the upper end surfaces of the two linings of the front plate and the second plate of the rear plate of the tunnel, the geotextile (3) is fixed on the upper end surfaces of the two linings of the front plate and the two linings of the rear plate of the tunnel and completely covers the clamping groove (2).
2. The water blockage and drainage device for preventing the crystal blockage at the construction joint of the tunnel according to claim 1, wherein: two sides of the top end of the clamping groove (2) are provided with upper anchoring plates (6) for anchoring in a front plate two lining and a rear plate two lining of the tunnel; and lower anchoring plates (7) which are used for anchoring in a front plate two lining and a rear plate two lining of the tunnel are arranged on two sides of the bottom end of the clamping groove (2).
3. The water blocking and drainage device for preventing crystallization at a construction joint of a tunnel according to claim 2, wherein: two side walls of the clamping groove (2) are provided with dentations (1) which are used for anchoring in a front plate two lining and a rear plate two lining of the tunnel.
4. The water blocking and drainage device for preventing crystallization at a construction joint of a tunnel according to claim 2, wherein: and the upper anchoring plate (6) and the lower anchoring plate (7) are provided with dentations (1) for anchoring in a front plate two lining and a rear plate two lining of the tunnel.
5. The water blockage and drainage device for preventing the crystal blockage at the construction joints of the tunnel according to claim 3 or 4, wherein: the dentations (1) on the two side walls of the clamping groove (2) are arranged at equal intervals, and the dentations (1) on the upper anchoring plate are arranged in a ladder shape.
6. The water blocking and drainage device for preventing crystallization at a construction joint of a tunnel according to claim 2, wherein: and an included angle is formed between the lower anchoring plate (7) and the end faces of the two front plate linings and the two rear plate linings of the tunnel.
7. The water blockage and drainage device for preventing the crystal blockage at the construction joint of the tunnel according to claim 5, wherein: the end part of the dentate protuberance (1) is provided with a transverse rib (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021183705.9U CN212898618U (en) | 2020-06-23 | 2020-06-23 | A prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021183705.9U CN212898618U (en) | 2020-06-23 | 2020-06-23 | A prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898618U true CN212898618U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021183705.9U Active CN212898618U (en) | 2020-06-23 | 2020-06-23 | A prevent drainage device that is used for stifled pipe of prevention crystallization of tunnel construction joint department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898618U (en) |
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2020
- 2020-06-23 CN CN202021183705.9U patent/CN212898618U/en active Active
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