CN202031076U - Compound vacuum tube well for reinforcing dredging soft soil - Google Patents
Compound vacuum tube well for reinforcing dredging soft soil Download PDFInfo
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- CN202031076U CN202031076U CN2011200838631U CN201120083863U CN202031076U CN 202031076 U CN202031076 U CN 202031076U CN 2011200838631 U CN2011200838631 U CN 2011200838631U CN 201120083863 U CN201120083863 U CN 201120083863U CN 202031076 U CN202031076 U CN 202031076U
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- outer tube
- tube
- filter membrane
- soft soil
- compound vacuum
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A compound vacuum tube well for reinforcing dredging soft soil comprises an inner tube, an outer tube and a filter membrane. The lower end of the outer tube is closed, the upper end of the outer tube is provided with a seal head, the inner tube penetrates through the seal head to extend into the bottom of an inner cavity of the outer tube and is connected with the seal head in a sealed mode and communicated with a vacuumizing water drain pipe, the filter membrane is sleeved on the outer wall of the lower middle of the outer tube, and the wall of the outer tube sleeved by the filter membrane is provided with a permeable hole. Negative pressure generated by a vacuum pump is directly exerted on a soil body needing reinforcement, so that reinforcing efficiency is improved, construction period is shortened and economic benefit is remarkable.
Description
Technical field
The utility model relates to and a kind of barged-in fill is carried out the equipment of vacuum pre-press reinforcing, belongs to the technical field that geosynthetics is made.
Background technology
Plastic draining board commonly used is as the drainage channel in the soil body during vacuum prepressing reinforcement soft soil, and the negative pressure that vacuum pump provides is delivered to downwards in the weak soil layer by permeable layer of sand and plastic draining board, but in the transmittance process negative pressure loss is arranged downwards, has reduced reinforcing efficient.In addition, when reinforcing barged-in fill with vacuum method, structural relatively poor because of saturated dredger soft soil, the viscosity grogs has bigger degree of freedom, adopt lower negative pressure and interruption to vacuumize though vacuumize early stage, but still easily cause forming cohesive soil cluster of grains post, produce shielding action at the plastic draining board periphery, make the transmission of negative pressure in the soil body weaken, influenced the discharge of water in the soil body.
Summary of the invention
In order to overcome the above-mentioned deficiency of band drain at the vacuum pre-press reinforcing saturated dredger soft soil, the utility model provides a kind of and reinforces the efficient height, is easy to the compound vacuum tube well that is used to reinforce barged-in fill that water is discharged in the soil body.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of compound vacuum tube well equipment, comprise interior pipe, outer tube and filter membrane, described outer tube lower end closed, described outer tube upper end is provided with end socket, pipe passes end socket and stretches into outer tube bore bottom in described, and interior pipe and described end socket are tightly connected, interior pipe with vacuumize gutter and be communicated with, the middle and lower part outer wall suit filter membrane of outer tube has the tube wall of filter membrane place outer tube to have permeable hole.
Further, the outer tube wall setting pressure of described filtering upper and lower side probe.This structure can be monitored the SEA LEVEL VARIATION of outer tube.
Further again, the cable of described pressure probe passes described end socket.
The beneficial effects of the utility model mainly show:
The negative pressure that vacuum pump is produced is applied directly on the soil mass consolidation, has avoided negative pressure in the traditional vacuum precompressed to be delivered to energy loss in the soil body process by permeable layer of sand and plastic draining board, has improved reinforcing efficient, helps the reduction of erection time.
Description of drawings
Fig. 1 is the schematic diagram that is used to reinforce the compound vacuum tube well of saturated dredger soft soil.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, a kind of compound vacuum tube well that is used to reinforce saturated dredger soft soil, pipe 8, outer tube 4 and filter membrane 2 in described compound vacuum tube well comprises, described outer tube 4 lower end closed, described outer tube 4 upper ends are provided with end socket 7, and described interior pipe 8 passes described end socket 7 and stretches into described outer tube 4 intracavity bottoms, pipe 8 is tightly connected with described end socket 7 in described, in pipe 8 with vacuumize gutter and be connected, the described filter membrane 2 of middle and lower part outer wall suit of described outer tube 4 has the tube wall of filter membrane place outer tube 4 to have permeable hole.
The outer tube wall setting pressure probe 1,3 of described filter membrane 2 upper and lower sides, its cable 5 is drawn from end socket 7.This structure can be monitored the SEA LEVEL VARIATION of outer tube.
The outer tube 4 of present embodiment can adopt pvc pipe, galvanized pipe etc.
6 is aqueous vapor flow directions when vacuumizing duty among Fig. 1.
The technical application scheme that the utility model is used to reinforce saturated dredger soft soil is as follows: build the cofferdam earlier, after set compound vacuum tube well, connect pumped vacuum systems again, begin saturated dredger soft soil in the cofferdam then, guarantee that simultaneously compound vacuum nest of tubes is upright in the hydraulic reclamation process.
In the present embodiment, the negative pressure that vacuum pump is produced is applied directly on the soil mass consolidation, has avoided negative pressure in the traditional vacuum precompressed to be delivered to energy loss in the soil body process by permeable layer of sand and plastic draining board, has improved reinforcing efficient, helps the reduction of erection time.When vacuumizing, last stage is big because of the water content of barged-in fill weak soil, and is mobile strong, and mainly be the water that extracts in the compound vacuum tube well this moment, and should in barged-in fill, not form significant negative pressuren zone, to avoid forming cohesive soil cluster of grains post with sealing at compound vacuum tube well periphery; When after-stage drops under the liquid limit 5～8% when the soil mass consolidation water content, continue to open vacuum pump, first low vacuum, after high vacuum gradually, its objective is and weaken the phenomenon that compound vacuum tube well periphery forms cohesive soil cluster of grains post as far as possible.
Claims (3)
1. compound vacuum tube well that is used to reinforce saturated dredger soft soil, it is characterized in that: described compound vacuum tube well comprises interior pipe, outer tube and filter membrane, described outer tube lower end closed, described outer tube upper end is provided with end socket, pipe passes described end socket and stretches into described outer tube bore bottom in described, described in pipe be tightly connected with described end socket, interior pipe with vacuumize gutter and be communicated with, the described filter membrane of middle and lower part outer wall suit of described outer tube has the tube wall of filter membrane place outer tube to have permeable hole.
2. the compound vacuum tube well that is used to reinforce saturated dredger soft soil as claimed in claim 1 is characterized in that: the outer tube wall setting pressure probe of described filtering upper and lower side.
3. the compound vacuum tube well that is used to reinforce saturated dredger soft soil as claimed in claim 2, it is characterized in that: the cable of described pressure probe passes described end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200838631U CN202031076U (en) | 2011-03-25 | 2011-03-25 | Compound vacuum tube well for reinforcing dredging soft soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200838631U CN202031076U (en) | 2011-03-25 | 2011-03-25 | Compound vacuum tube well for reinforcing dredging soft soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031076U true CN202031076U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200838631U Expired - Lifetime CN202031076U (en) | 2011-03-25 | 2011-03-25 | Compound vacuum tube well for reinforcing dredging soft soil |
Country Status (1)
| Country | Link |
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| CN (1) | CN202031076U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733371A (en) * | 2012-07-18 | 2012-10-17 | 王军 | Closed direct-sucking sectional vacuum preloading foundation treatment method |
| CN103352458A (en) * | 2013-07-02 | 2013-10-16 | 南京瑞迪建设科技有限公司 | Method for efficiently absorbing water and solidifying under films through controllable vacuum negative pressure well |
| CN104452734A (en) * | 2014-11-12 | 2015-03-25 | 叶吉 | Rapid soft foundation separation preloading method |
| CN107313421A (en) * | 2017-08-11 | 2017-11-03 | 建基建设集团有限公司 | A kind of rapidly solidified device of barged-in fill and construction method |
| CN110284486A (en) * | 2019-07-03 | 2019-09-27 | 浙江海洋大学 | A kind of reinforced soft soil ground discharge structure |
-
2011
- 2011-03-25 CN CN2011200838631U patent/CN202031076U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733371A (en) * | 2012-07-18 | 2012-10-17 | 王军 | Closed direct-sucking sectional vacuum preloading foundation treatment method |
| CN102733371B (en) * | 2012-07-18 | 2015-06-24 | 温州大学 | Closed direct-sucking sectional vacuum preloading foundation treatment method |
| CN103352458A (en) * | 2013-07-02 | 2013-10-16 | 南京瑞迪建设科技有限公司 | Method for efficiently absorbing water and solidifying under films through controllable vacuum negative pressure well |
| CN104452734A (en) * | 2014-11-12 | 2015-03-25 | 叶吉 | Rapid soft foundation separation preloading method |
| CN107313421A (en) * | 2017-08-11 | 2017-11-03 | 建基建设集团有限公司 | A kind of rapidly solidified device of barged-in fill and construction method |
| CN110284486A (en) * | 2019-07-03 | 2019-09-27 | 浙江海洋大学 | A kind of reinforced soft soil ground discharge structure |
| CN110284486B (en) * | 2019-07-03 | 2021-01-15 | 浙江海洋大学 | Soft soil foundation stabilization drainage structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |
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| CX01 | Expiry of patent term |