CN204024665U - A kind of vacuum spoil disposal shield construction system - Google Patents
A kind of vacuum spoil disposal shield construction system Download PDFInfo
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- CN204024665U CN204024665U CN201420437374.5U CN201420437374U CN204024665U CN 204024665 U CN204024665 U CN 204024665U CN 201420437374 U CN201420437374 U CN 201420437374U CN 204024665 U CN204024665 U CN 204024665U
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- mud
- vacuum
- cutterhead
- lip type
- spoil disposal
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Abstract
The utility model relates to a kind of vacuum spoil disposal shield construction system, comprises and being placed in tunnel for the shield machine advanced, the tube coupling placed in tunnel and the mud generation and treatment system, vacuum pump and the storage mud tank etc. that are arranged on tunnel outer.The utility model is full of excavation surface and the portion's of backbreaking pressurization by high concentration muddy water, the dregs of excavation, the rear dense thickened drilling fluid forming slump about 20 of rubble mixing; When the external and internal pressure critical balance of cutterhead cabin, attract to drain in machine to store up mud groove by lip type vacuum mud valve, not only workload efficiency is high, and safety is high; And not easily there is surface uplift, the impact bad on earth's surface of sinking to subsiding etc., well improve construction precision, cost reduction.
Description
Technical field
The utility model relates to tunneling equipment field, especially a vacuum spoil disposal shield construction system.
Background technology
At present, in China's city tunnel, pipeline network construction, the casting mode of shield machine, push-bench to circulate two kinds of modes based on screw machine and muddy water, the screw machine that wherein earth pressure balance is conventional and conveyer belt pattern, and casting inefficiency, transportation is complicated.The Slurry treatment piece-rate system cost of equipment that slurry balance shield machine is conventional is high, and ambient influnence is large and occupied ground is many, the abnormal height of holistic cost.
Summary of the invention
The technical problems to be solved in the utility model is: propose a kind of low cost, construction quality is stablized, casting efficiency high, sanitary vacuum spoil disposal shield construction system.
The technical scheme that the utility model adopts is: a kind of vacuum spoil disposal shield construction system, comprises and being placed in tunnel for the shield machine advanced, the tube coupling placed in tunnel and the mud generation and treatment system, vacuum pump and the storage mud tank that are arranged on tunnel outer; The head of described shield machine has cutterhead, arranges cutterhead cabin inside cutterhead; The outside of cutterhead has spray mud mouth; Described mud occurs and treatment system sprays by spraying mud mouth by sending mud pipeline to be connected with cutterhead and the dense mud occurred at mud and modulate in treatment system to be delivered to cutterhead end face;
The rear side in described cutterhead cabin is provided with lip type vacuum mud valve, and the afterbody of lip type vacuum mud valve connects storage mud groove; The dense mud being mixed with native slag stone in cutterhead cabin drains in storage mud groove by vacuum attraction by described lip type vacuum mud valve; Described storage mud groove is connected with the storage mud tank of tunnel outer by spoil disposal pipeline, the negative pressure that described storage mud tank is produced by the vacuum pump be attached thereto, and is attracted to drain in storage mud tank by the dense mud in storage mud groove.
Further, can be good to make shield machine suspending with tunnel, the slump of dense mud described in the utility model is 18 ~ 22; The proportion of the dense mud that described mud occurs and modulates in treatment system is 1.3 ~ 1.5.
Further say, in storage mud groove described in the utility model, be provided with mudstone isolating construction.Rock can enter in pipe after fragmentation, by Cemented filling rubble, reduces workload, raises the efficiency, increase safety.
The utility model sludge discharge way is vacuum transport mode.Can long distance delivery, and can select directly to drain in ground storage mud groove or mud car.In order to improve construction precision and safety, the lip type rubber valve body that lip type vacuum mud valve described in the utility model comprises outside steel valve body cover and is arranged in valve cover; Described lip type rubber valve body is for having deformation region; The two ends of described lip type rubber valve body are fixed on valve cover; The space of insufflation gas is left between valve cover inwall and lip type rubber valve body.
The beneficial effects of the utility model are: be full of excavation surface and the portion's of backbreaking pressurization by high concentration muddy water, the dregs of excavation, the rear dense thickened drilling fluid forming slump about 20 of rubble mixing; When the external and internal pressure critical balance of cutterhead cabin, attract to drain in machine to store up mud groove by lip type vacuum mud valve, not only workload efficiency is high, and safety is high; And not easily there is surface uplift, the impact bad on earth's surface of sinking to subsiding etc., well improve construction precision, cost reduction.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model lip type vacuum valve;
In figure: 1, mud occurs and treatment system; 2, mud pipeline is sent; 3, cutterhead; 4, mud mouth is sprayed; 5, cutterhead cabin; 6, lip type vacuum mud valve; 7, mud groove is stored up; 8, vacuum pump; 9, spoil disposal pipeline; 10, mud tank is stored up; A, steel valve body cover; B, lip type rubber valve body.
Detailed description of the invention
With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of vacuum spoil disposal shield construction system as shown in Figure 1, comprises and being placed in tunnel for the shield machine advanced, the tube coupling placed in tunnel and the mud generation and treatment system, vacuum pump and the storage mud tank that are arranged on tunnel outer; The head of shield machine has cutterhead, arranges cutterhead cabin inside cutterhead; The outside of cutterhead has spray mud mouth; Mud occurs and treatment system sprays by spraying mud mouth by sending mud pipeline to be connected with cutterhead and the dense mud occurred at mud and modulate in treatment system to be delivered to cutterhead end face;
The rear side in cutterhead cabin is provided with lip type vacuum mud valve, and the afterbody of lip type vacuum mud valve connects storage mud groove; The dense mud being mixed with native slag stone in cutterhead cabin drains in storage mud groove by vacuum attraction by lip type vacuum mud valve; The lip type rubber valve body that lip type vacuum mud valve comprises outside steel valve body cover and is arranged in valve cover; Lip type rubber valve body is for having deformation region; The two ends of lip type rubber valve body are fixed on valve cover; The space of insufflation gas is left between valve cover inwall and lip type rubber valve body.
As illustrated 2, between valve cover and rubber valve body, charged pressure is about the air of 0.25MPa, and when rubber valve body is in B position, mud valve is closed, and keeps soil pressure in native storehouse; Between valve cover and rubber valve body after compressed air release, when rubber valve body is in B ' position, mud valve is opened, and in soil storehouse, valve body front end, pressure is higher than pressure in rear portion storage mud groove, and dregs pressurized drains into storage mud groove in machine.
Storage mud groove is connected with the storage mud tank of tunnel outer by spoil disposal pipeline, the negative pressure that described storage mud tank is produced by the vacuum pump be attached thereto, and is attracted to drain in storage mud tank by the dense mud in storage mud groove.
The slump of dense mud is 20; The proportion of the dense mud that mud occurs and modulates in treatment system is 1.3 ~ 1.5.By high concentration muddy water, excavation surface and the portion's of backbreaking pressurization are full of, the dregs of excavation, the rear dense thickened drilling fluid forming slump about 20 of rubble mixing; When the external and internal pressure critical balance of cutterhead cabin, attract to drain in machine to store up mud groove by lip type vacuum mud valve, not only workload efficiency is high, and safety is high; And not easily there is surface uplift, the impact bad on earth's surface of sinking to subsiding etc., well improve construction precision, cost reduction.
Be provided with mudstone isolating construction in storage mud groove, be separated with mud by large stone, large stone transports outside hole by dolly; Rock can enter in pipe after fragmentation, by Cemented filling rubble, reduces workload, raises the efficiency, increase safety.
Sludge discharge way is vacuum transport mode.Under atmospheric pressure effect, transport outside hole to the large native sand that can transport by vacuum pressure, in addition, the large gravel not by vacuum attraction is transported by bucket in hole; And the native sand transported to outside hole, directly transport process at storage mud groove by vacuum tube car.
The just detailed description of the invention of the present utility model described in above manual, various illustrating is not construed as limiting flesh and blood of the present utility model, person of an ordinary skill in the technical field after having read manual can to before described detailed description of the invention make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.
Claims (5)
1. a vacuum spoil disposal shield construction system, is characterized in that: comprise and being placed in tunnel for the shield machine advanced, the tube coupling placed in tunnel and the mud generation and treatment system, vacuum pump and the storage mud tank that are arranged on tunnel outer; The head of described shield machine has cutterhead, arranges cutterhead cabin inside cutterhead; The outside of cutterhead has spray mud mouth; Described mud occurs and treatment system sprays by spraying mud mouth by sending mud pipeline to be connected with cutterhead and the dense mud occurred at mud and modulate in treatment system to be delivered to cutterhead end face;
The rear side in described cutterhead cabin is provided with lip type vacuum mud valve, and the afterbody of lip type vacuum mud valve connects storage mud groove; The dense mud being mixed with native slag stone in cutterhead cabin drains in storage mud groove by vacuum attraction by described lip type vacuum mud valve; Described storage mud groove is connected with the storage mud tank of tunnel outer by spoil disposal pipeline, the negative pressure that described storage mud tank is produced by the vacuum pump be attached thereto, and is attracted to drain in storage mud tank by the dense mud in storage mud groove.
2. a kind of vacuum spoil disposal shield construction system as claimed in claim 1, is characterized in that: the slump of described dense mud is 18 ~ 22.
3. a kind of vacuum spoil disposal shield construction system as claimed in claim 1, is characterized in that: be provided with mudstone isolating construction in described storage mud groove.
4. a kind of vacuum spoil disposal shield construction system as claimed in claim 1, is characterized in that: the lip type rubber valve body that described lip type vacuum mud valve comprises outside steel valve body cover and is arranged in valve cover; Described lip type rubber valve body is for having deformation region; The two ends of described lip type rubber valve body are fixed on valve cover; The space of insufflation gas is left between valve cover inwall and lip type rubber valve body.
5. a kind of vacuum spoil disposal shield construction system as claimed in claim 1, is characterized in that: the proportion of the dense mud that described mud occurs and modulates in treatment system is 1.3 ~ 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437374.5U CN204024665U (en) | 2014-08-04 | 2014-08-04 | A kind of vacuum spoil disposal shield construction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437374.5U CN204024665U (en) | 2014-08-04 | 2014-08-04 | A kind of vacuum spoil disposal shield construction system |
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| Publication Number | Publication Date |
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| CN204024665U true CN204024665U (en) | 2014-12-17 |
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| CN201420437374.5U Active CN204024665U (en) | 2014-08-04 | 2014-08-04 | A kind of vacuum spoil disposal shield construction system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179507A (en) * | 2014-08-04 | 2014-12-03 | 江苏锐成机械有限公司 | Vacuum sludge discharge shield system |
| CN109578003A (en) * | 2018-11-16 | 2019-04-05 | 天津超威千斤顶有限公司 | A kind of small-bore miniature mire water equilibrium tube excavator |
-
2014
- 2014-08-04 CN CN201420437374.5U patent/CN204024665U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179507A (en) * | 2014-08-04 | 2014-12-03 | 江苏锐成机械有限公司 | Vacuum sludge discharge shield system |
| CN109578003A (en) * | 2018-11-16 | 2019-04-05 | 天津超威千斤顶有限公司 | A kind of small-bore miniature mire water equilibrium tube excavator |
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