CN203175580U - Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel - Google Patents
Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel Download PDFInfo
- Publication number
- CN203175580U CN203175580U CN 201320144823 CN201320144823U CN203175580U CN 203175580 U CN203175580 U CN 203175580U CN 201320144823 CN201320144823 CN 201320144823 CN 201320144823 U CN201320144823 U CN 201320144823U CN 203175580 U CN203175580 U CN 203175580U
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- packing
- water stopping
- power cable
- cable tunnel
- tunnel
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- Expired - Lifetime
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Abstract
The utility model relates to a portal water stopping device for power cable tunnel pipe jacking construction out of a tunnel. The portal water stopping device for the power cable tunnel pipe jacking construction out of the tunnel is arranged on the portal of a working well, and comprises rubber water stopping flanges, a middle water stopping ring and a packing water stopping assembly, the middle water stopping ring is arranged on the rubber water stopping flanges, and the packing water stopping assembly is connected with the rubber water stopping flanges. Compared with the prior art, the portal water stopping device for the power cable tunnel pipe jacking construction out of the tunnel is provided with the two rubber water stopping flanges and a set of packing water stopping assembly, and has the advantages of being good in water stopping effect, not prone to being abraded and the like.
Description
Technical field
The utility model relates to the construction of a kind of power cable tunnel and use device, especially relates to a kind of power cable tunnel push pipe and appears to construct and use the hole antipriming.
Background technology
Jacking construction is a kind of underground pipeline construction method, and it does not need to excavate surface layer, and can highway crossing, railway, above ground structure and underground utilities etc.It starts from the Northern Pacific Railroad laying project construction of the U.S. in 1986 the earliest for it.China's jacking construction it is reported the Beijing that starts from nineteen fifty-three, and Shanghai is also in beginning push pipe in 1956 test afterwards.Along with push pipe constantly develops, it is the no-excavation construction method of theoretical foundation with air pressure balance, mud and water balance and earth pressure balance that pipe jacking construction technique progressively develops into a kind of.The pipe jacking tunnelling machine form is further refinement also, can be divided into muddy water formula, slurry type, soil pressure formula and rock ripper.At present, the job practices that pipe jacking construction technique has become a kind of routine is used, and many pipelines such as running water pipe, gas pipe, power cable, communication cable and the power plant circulating system have also adopted pipe jacking construction technique.It is the critical process of jacking construction that push pipe is appeared.In the pipe-jacking project, can in active well, appear smoothly for making pipe, the general active well that adopts is reserved the hole mode more bigger than tube coupling external diameter, this gap need be adopted an effective measure and be sealed during jacking, otherwise underground water and silt particle will flow in the active well from this gap, can cause subsiding of the face of land, top, hole, even can cause the accident.Therefore, the hole sealing is a link that can not be ignored in the push pipe process.The hole sealing generally is that rubber flange sealing is set at the hole, but still has the undesirable problem of stagnant water effect.
Summary of the invention
The purpose of this utility model is exactly that good, the nonabradable power cable tunnel push pipe of a kind of stagnant water effect construction hole antipriming of appearing is provided in order to overcome the defective that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of power cable tunnel push pipe is appeared to construct and is used the hole antipriming, be installed in place, active well hole, this antipriming comprises rubber sealing flange, middle seal ring and packing sealing assembly, seal ring is located on the rubber sealing flange in the middle of described, and described packing sealing assembly is connected with rubber sealing flange.
Described rubber sealing flange is provided with two, and described middle seal ring is located between two rubber sealing flanges.
Described packing sealing assembly encircles and the packing sealing rod after comprising the preceding ring of packing, packing, ring is connected with rubber sealing flange by screw before the described packing, ring is connected by encircle before screw and the packing behind the described packing, described packing sealing rod be connected packing preceding encircle and packing after interannular.
Described packing sealing rod is provided with a plurality of, distributes to be connected before the packing interannular behind the ring and packing.
Described packing sealing rod is provided with four.
Compared with prior art, the utlity model has following advantage:
1, the utility model is provided with twice rubber sealing flange, and for the hole sealing provides dual fail-safe, stagnant water effect is good, avoids the mud lubrication cover to run off from the hole simultaneously;
2, the utility model has increased packing sealing assembly behind rubber sealing flange, and the gap of the full hole of embedding and tube coupling makes rubber sealing flange be difficult for routing up, and limited the scope of activities of tube coupling, has avoided the possibility that is worn because of tube coupling deflection displacement waterstop.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.Present embodiment is that prerequisite is implemented with technical solutions of the utility model, provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, a kind of power cable tunnel push pipe is appeared to construct and is used the hole antipriming, be installed in place, active well hole, this antipriming comprises rubber sealing flange 1, middle seal ring 2 and packing sealing assembly, described rubber sealing flange 1 is provided with two, seal ring 2 is connected 2 of two rubber sealing flanges by screw 6 in the middle of described, and described packing sealing assembly is connected with rubber sealing flange 1.
Described packing sealing assembly comprises before the packing ring 4 and packing sealing rod 5 behind ring 3, the packing, ring 3 is connected with rubber sealing flange 1 by screw 6 before the described packing, ring 4 is connected with ring 3 before the packing by screw 6 behind the described packing, described packing sealing rod 5 is provided with four, and distribution encircles 4 after being connected the preceding ring 3 of packing and packing.
Above-mentioned antipriming can prevent that otch front muddy water is lost in the well in the push pipe jack-in process before pipe jacking tunnelling machine is appeared, can avoid the mud lubrication cover to run off from the hole simultaneously.
Twice rubber sealing flange provides dual fail-safe for the hole sealing, has increased packing sealing assembly simultaneously thereafter.Back (tube coupling outer ring) at waterstop installs the packing sealing additional, and the gap of the full hole sealing of embedding and tube coupling makes the rubber sealing be difficult for routing up, and limited the scope of activities of tube coupling, has avoided the possibility that is worn because of tube coupling deflection displacement waterstop.
Claims (5)
1. a power cable tunnel push pipe is appeared to construct and is used the hole antipriming, be installed in place, active well hole, it is characterized in that, this antipriming comprises rubber sealing flange, middle seal ring and packing sealing assembly, seal ring is located on the rubber sealing flange in the middle of described, and described packing sealing assembly is connected with rubber sealing flange.
2. a kind of power cable tunnel push pipe according to claim 1 is appeared to construct and is used the hole antipriming, it is characterized in that described rubber sealing flange is provided with two, and described middle seal ring is located between two rubber sealing flanges.
3. a kind of power cable tunnel push pipe according to claim 1 is appeared to construct and is used the hole antipriming, it is characterized in that, described packing sealing assembly encircles and the packing sealing rod after comprising the preceding ring of packing, packing, ring is connected with rubber sealing flange by screw before the described packing, ring is connected by encircle before screw and the packing behind the described packing, described packing sealing rod be connected packing preceding encircle and packing after interannular.
4. the hole antipriming use in a kind of power cable tunnel push pipe according to claim 3 construction of appearing, and it is characterized in that described packing sealing rod is provided with a plurality of, distribute be connected encircle before the packing and packing after interannular.
5. a kind of power cable tunnel push pipe according to claim 4 is appeared to construct and is used the hole antipriming, it is characterized in that described packing sealing rod is provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320144823 CN203175580U (en) | 2013-03-27 | 2013-03-27 | Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320144823 CN203175580U (en) | 2013-03-27 | 2013-03-27 | Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175580U true CN203175580U (en) | 2013-09-04 |
Family
ID=49072295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320144823 Expired - Lifetime CN203175580U (en) | 2013-03-27 | 2013-03-27 | Portal water stopping device for power cable tunnel pipe jacking construction out of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175580U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060634A (en) * | 2014-07-01 | 2014-09-24 | 国家电网公司 | Water stopping method and structure for reserved hole of pipe jacking work well |
| CN108266207A (en) * | 2017-12-26 | 2018-07-10 | 广州市市政集团有限公司 | A kind of push pipe export ＆ import water-stopping method and device suitable for deep water-rich sand layer area |
-
2013
- 2013-03-27 CN CN 201320144823 patent/CN203175580U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060634A (en) * | 2014-07-01 | 2014-09-24 | 国家电网公司 | Water stopping method and structure for reserved hole of pipe jacking work well |
| CN104060634B (en) * | 2014-07-01 | 2016-05-04 | 国家电网公司 | Water-stopping method and the structure of push pipe work well reserving hole |
| CN108266207A (en) * | 2017-12-26 | 2018-07-10 | 广州市市政集团有限公司 | A kind of push pipe export ＆ import water-stopping method and device suitable for deep water-rich sand layer area |
| CN108266207B (en) * | 2017-12-26 | 2020-05-08 | 广州市市政集团有限公司 | Pipe jacking in-out hole water stopping method and device suitable for deep water-rich sand layer area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |