CN104033167A - Cable tunnel outlet water resisting device and method - Google Patents
Cable tunnel outlet water resisting device and method Download PDFInfo
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- CN104033167A CN104033167A CN201310074861.XA CN201310074861A CN104033167A CN 104033167 A CN104033167 A CN 104033167A CN 201310074861 A CN201310074861 A CN 201310074861A CN 104033167 A CN104033167 A CN 104033167A
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Abstract
The invention provides a cable tunnel outlet water resisting device and method. The cable tunnel outlet water resisting device comprises a concrete body and a water stopping layer. A first cable hole penetrating the concrete body in the vertical direction is formed in the concrete body. The water stopping layer is arranged in the concrete body in the horizontal direction, and a second cable hole penetrating the water stopping layer in the vertical direction is formed in the water stopping layer. The first cable hole and the second cable hole are communicated to form a cable channel. The concrete body seals a cable tunnel outlet, so that water in the cable tunnel cannot flow out through the outlet. The water stopping layer further seals a gap possibly existing between the first cable hole of the concrete body and a cable and can prevent the water in the cable tunnel from flowing out from the cable tunnel outlet through the surface of the cable. Therefore, the portion of the cable tunnel at the position of an outlet of a cable interlayer chamber of a transformer substation is strictly sealed and is waterproof, and the water in the cable tunnel is prevented from flowing back into the cable interlayer chamber.
Description
Technical field
The present invention relates to power equipment waterproof field, more specifically, relate to water-tight device and the waterproof method of a kind of cable tunnel outlet.
Background technology
In prior art, the coupling part, cable interlayer chamber of cable tunnel and transformer station is poorly sealed, and the water in the time of rainfall in tunnel can, to the indoor backflow of cable interlayer, be immersed in water the equipment in cable interlayer chamber.
Existing waterproof method is that the staff of transformer station utilizes water pumper to the cable interlayer operation of drawing water, and so not only labor intensive and material resources, also can cause adverse effect to the equipment in cable interlayer chamber.
Summary of the invention
The present invention aims to provide water-tight device and the waterproof method of a kind of cable tunnel outlet, to solve the cable tunnel of prior art and the coupling part, cable interlayer chamber of transformer station is poorly sealed, causes the water in tunnel can be to the problem of the indoor backflow of cable interlayer.
For solving the problems of the technologies described above, according to a first aspect of the invention, provide the water-tight device of a kind of cable tunnel outlet, comprising: concrete body, is provided with the first cable aperture vertically connecting on concrete body; Sealing layer, sealing layer along continuous straight runs is arranged in concrete body, offers the second cable aperture vertically connecting on sealing layer, and the first cable aperture is communicated with the second cable aperture, and the first cable aperture and the second cable aperture are communicated with formation cable passage.
Further, sealing layer comprises the pea gravel concreten layer, neoprene layer, layers of kraft paper and the waterproofing mortar leveling layer that set gradually from top to bottom.
Further, layers of kraft paper is bonding by chloroprene rubber adhesive agent and neoprene layer.
Further, water-tight device also comprises the kraft that is arranged on sealing layer soffit.
Further, water-tight device also comprises bracing frame, and bracing frame is arranged in concrete body, and sealing layer is arranged on bracing frame.
Further, bracing frame comprises bracing frame body and the leg being connected with bracing frame body, and sealing layer is arranged on bracing frame body.
Further, water-tight device comprises the first water tight packing being filled between cable passage and cable to be installed.
According to a second aspect of the invention, also provide the waterproof method of a kind of cable tunnel outlet, step 1, excavates pit in the exit of the indoor cable tunnel of cable interlayer around cable; Step 2 is filled the second water tight packing in the gap between cable tunnel and cable; Step 3, is arranged on bracing frame in pit; Step 4 is built a layer concrete in pit, makes the upper surface of bracing frame body of concrete upper surface and bracing frame in the same plane; Step 5, is arranged at sealing layer on the upper surface of bracing frame body; Step 6 continues fluid concrete in pit, and makes concrete flood sealing layer.
Further, step 5 comprises: before being cast in a layer concrete in pit and condensing completely, lay one deck kraft at the upper surface of bracing frame body; At the upper surface of kraft, one deck waterproofing mortar leveling layer is set; After waterproofing mortar leveling layer is dry, lay layers of kraft paper at the upper surface of waterproofing mortar leveling layer; Neoprene layer is bonded in to the upper surface of layers of kraft paper by chloroprene rubber adhesive agent; Build pea gravel concreten layer at the upper surface of neoprene layer.
Concrete body has sealed the outlet of cable tunnel, and the water in cable tunnel cannot be flowed out from outlet.Sealing layer has further sealed the gap that may exist between the first cable aperture of concrete body and cable, also prevents that the water in cable tunnel from flowing out from the outlet of cable tunnel via cable surface.Like this, just ensure that cable tunnel is positioned at the strict water-tight of exit portion of the cable interlayer chamber of transformer station, avoided the water in cable tunnel can be to the indoor backflow of cable interlayer.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the water-tight device in the present invention and has been arranged on the schematic diagram in cable tunnel exit; And
Fig. 2 has schematically shown the schematic diagram of sealing layer.
Reference numeral in figure: 10, concrete body; 11, the first cable aperture; 20, sealing layer; 21, pea gravel concreten layer; 22, neoprene layer; 23, layers of kraft paper; 24, waterproofing mortar leveling layer; 25, the second cable aperture; 30, kraft; 40, bracing frame; 41, bracing frame body; 42, leg; 50, the first water tight packing; 60, the second water tight packing; 70, cable tunnel; 80, cable.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
According to a first aspect of the invention, provide the water-tight device of a kind of cable tunnel outlet, as shown in Figure 1, this water-tight device comprises: concrete body 10, is provided with the first cable aperture 11 vertically connecting on concrete body 10; Sealing layer 20, sealing layer 20 along continuous straight runs are arranged in concrete body 10, on sealing layer 20, offer the second cable aperture 25, the first cable aperture 11 that vertically connect and be communicated with the second cable aperture 25, the first cable aperture 11 and the second cable aperture 25 are communicated with formation cable passage.
Concrete body 10 has sealed the outlet of cable tunnel 70, and the water in cable tunnel 70 cannot be flowed out from outlet.Sealing layer 20 has further sealed the gap that may exist between the first cable aperture 11 of concrete body 10 and cable 80, also prevents that the water in cable tunnel from flowing out from the outlet of cable tunnel 70 via cable surface.Like this, just ensure that cable tunnel 70 is positioned at the strict water-tight of exit portion of the cable interlayer chamber of transformer station, avoided the water in cable tunnel 70 can be to the indoor backflow of cable interlayer.
Preferably, as shown in Figure 2, sealing layer 20 comprises the pea gravel concreten layer 21, neoprene layer 22, layers of kraft paper 23 and the waterproofing mortar leveling layer 24 that set gradually from top to bottom.Sealing layer 20 utilizes the elasticity of neoprene layer 22 to be adjacent to cable 80, and neoprene layer 22 has again corrosion resistance, makes sealing layer 20 have longer application life.Layers of kraft paper 23 is arranged on waterproofing mortar leveling layer 24, and neoprene layer 22 is arranged on again in layers of kraft paper 23, makes neoprene layer 22 can keep smooth, not can and cable 80 between produce gap.Pea gravel concreten layer 21 is arranged on neoprene layer 22, and neoprene layer 22 is clipped between pea gravel concreten layer 21 and layers of kraft paper 23, further protects the smooth of positive neoprene layer 22.Wherein, compared with the concrete that the concrete that pea gravel concreten layer 21 uses uses with concrete body 10, solid particle is less, finer and smoother, can contact tightr with neoprene layer 22.Preferably, layers of kraft paper 23 is bonding by chloroprene rubber adhesive agent and neoprene layer 22.
Preferably, water-tight device also comprises the kraft 30 that is arranged on sealing layer 20 soffit.Waterproofing mortar leveling layer 24 is arranged on kraft 30, makes in the process that water-tight device is set, and the mortar of waterproofing mortar leveling layer 24 can not absorbed by the concrete of concrete body 10, makes waterproofing mortar leveling layer 24 cannot form smooth plane.
Preferably, water-tight device also comprises bracing frame 40, and bracing frame 40 is arranged in concrete body 10, and sealing layer 20 is arranged on bracing frame 40.Preferably, bracing frame 40 comprises bracing frame body 41 and the leg 42 being connected with bracing frame body 41, and sealing layer 20 is arranged on bracing frame body 41.Sealing layer 20 is arranged on bracing frame 40, makes sealing layer 20 more steady, and waterproof effect is better.
Preferably, water-tight device comprises the first water tight packing 50 being filled between cable passage and cable 80 to be installed.The first water tight packing 50 can filled cable passage and cable 80 between gap, for example, in the concrete coagulation process of the concrete body 10 and gap of generation between cable 80, prevents that the water in cable tunnel 70 from refluxing via above-mentioned gap.
According to a second aspect of the invention, provide the waterproof method of a kind of cable tunnel outlet, as shown in Figure 1, step 1, excavates pit in the exit of the indoor cable tunnel 70 of cable interlayer around cable 80; Step 2 is filled the second water tight packing 60 in the gap between cable tunnel 70 and cable 80; Step 3, is arranged on bracing frame 40 in pit; Step 4 is built a layer concrete in pit, makes the upper surface of bracing frame body 41 of concrete upper surface and bracing frame 40 in the same plane; Step 5, is arranged at sealing layer 20 on the upper surface of bracing frame body 41; Step 6, to fluid concrete in pit, and makes concrete flood sealing layer 20.
Preferably, step 5 comprises: before being cast in a layer concrete in pit and condensing completely, lay one deck kraft 30 at the upper surface of bracing frame body 41; At the upper surface of kraft 30, one deck waterproofing mortar leveling layer 24 is set; After waterproofing mortar leveling layer 24 is dry, lay layers of kraft paper 23 at the upper surface of waterproofing mortar leveling layer 24; Neoprene layer 22 is bonded in to the upper surface of layers of kraft paper 23 by chloroprene rubber adhesive agent; Build pea gravel concreten layer 21 at the upper surface of neoprene layer 22.
Adopt the waterproof method of cable tunnel of the present invention outlet, in the outlet of the cable tunnel of cable interlayer chamber, water-tight device is set, substantially no longer there is current backflow phenomenon in the cable tunnel outlet that has increased water-tight device, the water soaking of having avoided the equipment in cable interlayer chamber to be refluxed, thereby ensure the normal operation of substation equipment, and then ensured the safety of electric power system and stablized.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a water-tight device for cable tunnel outlet, is characterized in that, described water-tight device comprises:
Concrete body (10), is provided with the first cable aperture (11) vertically connecting on described concrete body (10);
Sealing layer (20), described sealing layer (20) along continuous straight runs is arranged in described concrete body (10), on described sealing layer (20), offer the second cable aperture (25) vertically connecting, described the first cable aperture (11) is communicated with described the second cable aperture (25), and described the first cable aperture (11) and described the second cable aperture (25) are communicated with formation cable passage.
2. water-tight device according to claim 1, is characterized in that, described sealing layer (20) comprises the pea gravel concreten layer (21), neoprene layer (22), layers of kraft paper (23) and the waterproofing mortar leveling layer (24) that set gradually from top to bottom.
3. water-tight device according to claim 2, is characterized in that, described layers of kraft paper (23) is bonding by chloroprene rubber adhesive agent and described neoprene layer (22).
4. water-tight device according to claim 1, is characterized in that, described water-tight device also comprises the kraft (30) that is arranged on described sealing layer (20) soffit.
5. water-tight device according to claim 1, it is characterized in that, described water-tight device also comprises bracing frame (40), and support frame as described above (40) is arranged in described concrete body (10), and described sealing layer (20) is arranged on support frame as described above (40).
6. water-tight device according to claim 5, it is characterized in that, support frame as described above (40) comprises bracing frame body (41) and the leg (42) being connected with support frame as described above body (41), and described sealing layer (20) is arranged on support frame as described above body (41).
7. water-tight device according to claim 1, is characterized in that, described water-tight device comprises the first water tight packing (50) being filled between described cable passage and cable (80) to be installed.
8. a waterproof method for cable tunnel outlet, is characterized in that, comprises the following steps:
Step 1, excavates pit in the exit of the indoor cable tunnel of cable interlayer (70) around cable (80);
Step 2 is filled the second water tight packing (60) in the gap between cable tunnel (70) and described cable (80);
Step 3, is arranged on bracing frame (40) in described pit;
Step 4 is built a layer concrete in described pit, makes the upper surface of bracing frame body (41) of concrete upper surface and support frame as described above (40) in the same plane;
Step 5, is arranged at sealing layer (20) on the upper surface of support frame as described above body (41);
Step 6 continues fluid concrete in described pit, and makes concrete flood described sealing layer (20).
9. waterproof method according to claim 8, is characterized in that, described step 5 comprises:
Before concrete in described step 4 condenses completely, lay one deck kraft (30) at the upper surface of support frame as described above body (41);
At the upper surface of described kraft (30), one deck waterproofing mortar leveling layer (24) is set;
After described waterproofing mortar leveling layer (24) is dry, lay layers of kraft paper (23) at the upper surface of described waterproofing mortar leveling layer (24);
Neoprene layer (22) is bonded in to the upper surface of described layers of kraft paper (23) by chloroprene rubber adhesive agent;
Build pea gravel concreten layer (21) at the upper surface of described neoprene layer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310074861.XA CN104033167B (en) | 2013-03-08 | 2013-03-08 | The water-tight device of cable tunnel outlet and waterproof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310074861.XA CN104033167B (en) | 2013-03-08 | 2013-03-08 | The water-tight device of cable tunnel outlet and waterproof method |
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| Publication Number | Publication Date |
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| CN104033167A true CN104033167A (en) | 2014-09-10 |
| CN104033167B CN104033167B (en) | 2016-02-24 |
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| CN201310074861.XA Active CN104033167B (en) | 2013-03-08 | 2013-03-08 | The water-tight device of cable tunnel outlet and waterproof method |
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Citations (7)
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|---|---|---|---|---|
| FR2054375A5 (en) * | 1969-07-10 | 1971-04-16 | Dynamit Nobel Ag | Plastics lined tunnelling |
| CN1807839A (en) * | 2005-12-27 | 2006-07-26 | 上海市隧道工程轨道交通设计研究院 | Waterproof method for entrance of shield tunnel |
| JP4076811B2 (en) * | 2002-07-26 | 2008-04-16 | クレハエラストマー株式会社 | Tunnel water leakage prevention structure, its construction method and columnar packing |
| CN202492975U (en) * | 2012-03-23 | 2012-10-17 | 上海市电力公司 | Pipeline water-proof structure extending out of roof |
| CN102777210A (en) * | 2012-08-22 | 2012-11-14 | 中铁二院工程集团有限责任公司 | Tunnel network waterproof-drainage board |
| CN202937276U (en) * | 2012-12-14 | 2013-05-15 | 中铁二十三局集团有限公司 | Waterproof structure for tunnel |
| CN204225486U (en) * | 2014-11-24 | 2015-03-25 | 国网辽宁省电力有限公司丹东供电公司 | The plugging structure of pre-buried pipeline in a kind of concrete floor |
-
2013
- 2013-03-08 CN CN201310074861.XA patent/CN104033167B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2054375A5 (en) * | 1969-07-10 | 1971-04-16 | Dynamit Nobel Ag | Plastics lined tunnelling |
| JP4076811B2 (en) * | 2002-07-26 | 2008-04-16 | クレハエラストマー株式会社 | Tunnel water leakage prevention structure, its construction method and columnar packing |
| CN1807839A (en) * | 2005-12-27 | 2006-07-26 | 上海市隧道工程轨道交通设计研究院 | Waterproof method for entrance of shield tunnel |
| CN202492975U (en) * | 2012-03-23 | 2012-10-17 | 上海市电力公司 | Pipeline water-proof structure extending out of roof |
| CN102777210A (en) * | 2012-08-22 | 2012-11-14 | 中铁二院工程集团有限责任公司 | Tunnel network waterproof-drainage board |
| CN202937276U (en) * | 2012-12-14 | 2013-05-15 | 中铁二十三局集团有限公司 | Waterproof structure for tunnel |
| CN204225486U (en) * | 2014-11-24 | 2015-03-25 | 国网辽宁省电力有限公司丹东供电公司 | The plugging structure of pre-buried pipeline in a kind of concrete floor |
Non-Patent Citations (1)
| Title |
|---|
| 瞿义勇等: "《防水工程施工与质量验收实用手册》", 29 February 2004 * |
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