CN104179507B - 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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- CN104179507B CN104179507B CN201410380630.6A CN201410380630A CN104179507B CN 104179507 B CN104179507 B CN 104179507B CN 201410380630 A CN201410380630 A CN 201410380630A CN 104179507 B CN104179507 B CN 104179507B
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- valve body
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Abstract
The present invention relates to a kind of vacuum spoil disposal shield construction system, 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 etc. that are arranged on tunnel outer.The present invention 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 present invention 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 problem to be solved in the present invention is: propose a kind of low cost, construction quality is stablized, casting efficiency high, sanitary vacuum spoil disposal shield construction system.
The technical solution adopted in the present invention 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 of the present invention 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 of the present invention, be provided with mudstone isolating construction.Rock can enter in pipe after fragmentation, by Cemented filling rubble, reduces workload, raises the efficiency, increase safety.
Sludge discharge way of the present invention 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 of the present invention 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 invention has the beneficial effects as follows: 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.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of lip type vacuum valve of the present invention;
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
The present invention is further detailed explanation with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
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 the specific embodiment of the present invention described in above manual, various illustrating is not construed as limiting flesh and blood of the present invention, 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 the spirit and scope of the invention.
Claims (4)
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; When the external and internal pressure critical balance of cutterhead cabin, 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;
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 has 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 air of charged pressure 0.25MPa between valve cover and rubber valve body, when rubber valve body is in the close 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 enable possition, 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.
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 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 |
|---|---|---|---|
| CN201410380630.6A CN104179507B (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 |
|---|---|---|---|
| CN201410380630.6A CN104179507B (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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| CN104179507A CN104179507A (en) | 2014-12-03 |
| CN104179507B true CN104179507B (en) | 2016-04-06 |
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| CN201410380630.6A Active CN104179507B (en) | 2014-08-04 | 2014-08-04 | A kind of vacuum spoil disposal shield construction system |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134228B (en) * | 2015-08-31 | 2018-09-11 | 江苏锐成机械有限公司 | A kind of dense mud formula driving engineering method of the modified form of shield machine |
| CN107269286B (en) * | 2017-07-18 | 2019-06-11 | 钱江重工有限公司 | A kind of piping stretch system for tunnel piercing |
| CN107401406A (en) * | 2017-09-05 | 2017-11-28 | 天津恒信有源机械设备有限公司 | A kind of new push-bench applied to cobble structure |
| CN107435542A (en) * | 2017-09-05 | 2017-12-05 | 天津恒信有源机械设备有限公司 | Cobble push-bench conveying discharging structure |
| CN107386407A (en) * | 2017-09-05 | 2017-11-24 | 天津恒信有源机械设备有限公司 | Cobble push-bench feeds conveying structure |
| CN108590694B (en) * | 2018-03-13 | 2019-10-25 | 中铁二局工程有限公司城通分公司 | A kind of pulp absorbing box and its vacuum take out slurry system |
| CN110331986B (en) * | 2019-08-14 | 2020-02-14 | 江苏格睿特管网工程有限公司 | Mud discharging structure and construction method for small and medium-sized earth pressure balance shield machine |
| CN113323687A (en) * | 2021-06-21 | 2021-08-31 | 中国化学工程第十六建设有限公司 | System and method for circularly adjusting pressure balance at front end of drill bit of push bench |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0932466A (en) * | 1995-07-14 | 1997-02-04 | Komatsu Ltd | Pipe joint device of sludge feeding pipe for use in muddy water discharge type shield machine |
| JPH10115180A (en) * | 1996-10-14 | 1998-05-06 | Maeda Corp | Device for dischaging slurry in tunnel in slurry shield method |
| CN203050720U (en) * | 2012-08-01 | 2013-07-10 | 秦皇岛天业通联重工股份有限公司 | Auxiliary slurry pressure maintaining system for earth pressure balance shield machine |
| CN102852553A (en) * | 2012-10-17 | 2013-01-02 | 中南大学 | Sludge discharge equipment comprising vacuum pump and sludge discharge tank |
| CN103352703A (en) * | 2013-07-08 | 2013-10-16 | 江苏锐成机械有限公司 | Mud draining construction method of thick muddy water of shield tunneling machine |
| CN204024665U (en) * | 2014-08-04 | 2014-12-17 | 江苏锐成机械有限公司 | A kind of vacuum spoil disposal shield construction system |
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