CN102587382A - Seepage-proofing grouting vibroflot and cofferdam construction process thereof - Google Patents
Seepage-proofing grouting vibroflot and cofferdam construction process thereof Download PDFInfo
- Publication number
- CN102587382A CN102587382A CN2012100986399A CN201210098639A CN102587382A CN 102587382 A CN102587382 A CN 102587382A CN 2012100986399 A CN2012100986399 A CN 2012100986399A CN 201210098639 A CN201210098639 A CN 201210098639A CN 102587382 A CN102587382 A CN 102587382A
- Authority
- CN
- China
- Prior art keywords
- grouting
- seepage
- shell
- vibroflot
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a seepage-proofing grouting vibroflot and a cofferdam construction process of the seepage-proofing grouting vibroflot, and belongs to the technical field of construction machinery. The seepage-proofing grouting vibroflot comprises a shell, a grout pipe, a high-pressure air rubber pipe and a grout pipe rubber pipe, wherein an air pipe is arranged at one side of the shell, a through hole is formed at the upper part of the shell, an annular air slot is arranged in the lower part of the shell, a spraying opening is arranged at the annular air slot of the shell, the upper end of the air pipe is connected with an air nozzle by the through hole, the air nozzle is connected with the high-pressure air rubber pipe, and the lower end of the air pipe is communicated with the annular air slot. The cofferdam construction process comprises the steps of preparing a lifting device in place, lifting the seepage-proofing grouting vibroflot to align to a pile position, starting an air compressor for air supply, starting the seepage-proofing grouting vibroflot, feeding grout into the seepage-proofing grouting vibroflot through a grouting pump, and repeatedly injecting and lifting. According to the invention, the construction period is short, the cement consumption is reduced, the construction cost is low, construction materials are saved, the operation is simple, convenient and fast, the cement grout loss is reduced, and the downstream river pollution is reduced, and thus the method is more environment-friendly. The seepage-proofing grouting vibroflot can replace cofferdam high-pressure spraying grouting for seepage prevention.
Description
Technical field
The present invention relates to a kind of cofferdam construction device, especially vibrating impacter, belong to the construction machinery technical field.
Background technology
In recent years, China's water resources and hydropower construction is fast-developing, and the quantity of building project and scale have reached unprecedented level.The small water conservancy hydroelectric pivotal project is also more and more; And a hydropower project is no matter large or small; The water conservancy diversion important step that is absolutely necessary, the cofferdam is an one of which pith, the seepage prevention of cofferdam success or not be directly connected to construction of hydropower plant smoothly; Cofferdam and seepage prevention of cofferdam engineering occupy critical role in the construction of hydropower facilities engineering, be directly connected to the progress and the investment of construction of hydropower facilities engineering.The seepage prevention of cofferdam construction; According to weir, cofferdam body and weir base overburden cover and stratum composition situation, anti-permeation method commonly used mainly contains high pressure jet grouting, concrete cut, clay core wall, cement or clay cementation, self-solidifying mortar-trough, Sheet Pile Pouring Wall in Coal, anti-seepage geomembrane etc.Existing various technologies are all comparatively ripe, yet limitation is separately all arranged.
Summary of the invention
To the problems referred to above, the present invention provides a kind of antiseepage grouting and vibro device and cofferdam construction technology thereof of the cofferdam being carried out the antiseepage construction.
The technical solution adopted for the present invention to solve the technical problems is: antiseepage grouting and vibro device comprises shell, slurry pipe, high pressure gas sebific duct, slurry pipe sebific duct; Shell one side is provided with tracheae, and shell upper is provided with through hole, is provided with annular gas tank in the outer casing underpart; The annular gas tank place of shell is provided with spout; Tracheae upper end via through holes is connected with valve; Valve is connected with the high pressure gas sebific duct; The tracheae lower end is communicated with annular gas tank.
Cofferdam construction technology may further comprise the steps: lifting appliance is in place, lifting antiseepage grouting and vibro device and align piles position; Start the air compressor machine air-supply, opening power starts antiseepage grouting and vibro device; After antiseepage grouting and vibro device worked well, grout pump was sent into slurries, the injection of antiseepage grouting and vibro device in gas slurry vibrating impacter; Again antiseepage grouting and vibro device is promoted, injection repeatedly, lifting, dark until the design stake.
The invention has the beneficial effects as follows that the construction period is short, reduced cement consumption, construction cost is low.Practice thrift construction material, simple and efficient to handle; Reduce cement grout and run off, reduce downstream river course and pollute more environmental protection.Can replace cofferdam high pressure jet grouting antiseepage.
Description of drawings
Fig. 1 is a general structure sketch map of the present invention;
Fig. 2 is Fig. 1 tracheae axis vertical cross section sketch map;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is a gas slurry vibrating impacter grouting water-tight construction view.
Component and numbering among the figure:
The 1-shell, the 2-tracheae, 3-starches pipe, the 4-spout, 5-high pressure gas sebific duct,
6-slurry pipe sebific duct, the 7-valve, the 8-annular gas tank, the 9-through hole, 10-antiseepage grouting and vibro device,
The 11-air compressor machine, 12-grout pump, 13-cofferdam, 14-lifting appliance, 15-power supply.
The specific embodiment
Below in conjunction with embodiment the present invention is further specified.
Referring to Fig. 1-3, antiseepage grouting and vibro device comprises shell 1, slurry pipe 3, high pressure gas sebific duct 5, slurry pipe sebific duct 6; Shell 1 one sides are provided with tracheae 2, and shell 1 top is provided with through hole 9, and shell is provided with annular gas tank 8 in 1 bottom; Annular gas tank 8 places of shell 1 are provided with spout 4; Tracheae 2 upper end via through holes 9 are connected with valve 7; Valve 7 is connected with high pressure gas sebific duct 5; Tracheae 2 lower ends are communicated with annular gas tank 8.
Referring to Fig. 4, cofferdam construction technology may further comprise the steps:
A, levelling of the land, cofferdam 13 are carried out smooth to cofferdam 13 after filling and accomplishing;
B, measurement unwrapping wire are measured unwrapping wire, confirm cofferdam 13 antiseepage axis;
C, boring slip casting, lifting appliance 14 is in place, lifting antiseepage grouting and vibro device 10, the align piles position starts air compressor machine 11; Putting in blast, opening power 15 starts antiseepage grouting and vibro device 10, after antiseepage grouting and vibro device 10 works well; Grout pump 12 is sent into slurries in antiseepage grouting and vibro device 10, antiseepage grouting and vibro device 10 is with the certain speed injection that blows slowly, and every injection certain depth promotes certain depths with antiseepage grouting and vibro device 10; Slowly injection again, dark until the design stake so repeatedly, reach the design stake dark after; After electric current reaches the encryption electric current, stay the certain hour that shakes, upwards promote slowly with certain speed again, until the stake mouth.Boring slip casting, lifting appliance is in place, lifting antiseepage grouting and vibro device 10, align piles position; Start air compressor machine 11, putting in blast starts antiseepage grouting and vibro device 10, after gas slurry vibrating impacter works well; Begin in gas slurry vibrating impacter, to send into slurries, antiseepage grouting and vibro device 10 is with the certain speed injection that blows slowly, and every injection certain depth promotes certain depths with antiseepage grouting and vibro device 10; Slowly injection again, dark until the design stake so repeatedly, reach the design stake dark after; After electric current reaches the encryption electric current, stay the certain hour that shakes, upwards promote slowly with certain speed again, until the stake mouth.
D, repetition C step.
Levelling of the land guarantees that lifting appliance 14 constructions have enough width and planeness in the A step.
In the B step, measure unwrapping wire, confirm cofferdam 13 antiseepage axis, and insert and sign sign stake position, guarantee that cofferdam 13 antiseepage axis are on a line.
Boring slip casting forms pile body in the C step.
In the D step, repeat the C step and form the antiseepage curtain wall.
The engineering example:
The construction of two phases, first phase cofferdam design length 240m, stage II cofferdam design length 180m are divided in certain head pivot cofferdam, power station.Head pivot dam foundation rock stratum comprises covering layer and basement rock two large divisions: the dam foundation covers bed thickness 31.4～35.15m, divides 8 substratums, is followed successively by 1. boulder bed, thick 3.85～6.35m; Structure is close slightly, and bearing capacity of foundation soil is 0.48Mpa, 2. fine sand layer, thick 2.16～3.41m; Loosely organized～close slightly, bearing capacity is 0.14MPa～0.28Mpa, 3. clay and farinose argillic horizon, thickness 8.94～12.67m; Brown, loosely organized～close slightly, transmission coefficient 1.38 * 10
-4～1.59 * 10
-5Cm/s, bearing capacity are 0.125Mpa, 4. clay folder macadam, and there is exposure at the dam site upper reaches, 5.～7. boulder bed, this layer bearing capacity of foundation soil is higher, 8. fine sand layer, thickness 3.14～6.55m contains a small amount of ovum gravel, and close slightly, bearing capacity of foundation soil is lower.The former scheme of seepage prevention of cofferdam is a high pressure jet grouting, and first phase needs 40 days durations, and the second phase needs 30 days durations.Adopted the gas slurry to shake afterwards towards grouting water-tight, actual first phase construction 9 days, second phase construction 6 days, the first phase second phase is practiced thrift 55 days durations altogether.Practice thrift 215.0479 ten thousand yuan of costs, practice thrift 55 days durations, can increase by 690.0164 ten thousand yuan of the generating output values.
Claims (2)
1. an antiseepage grouting and vibro device comprises shell (1), slurry pipe (3), high pressure gas sebific duct (5), slurry pipe sebific duct (6); It is characterized in that shell (1) one side is provided with tracheae (2), shell (1) top is provided with through hole (9), and shell (1) is provided with annular gas tank (8) in the bottom; The annular gas tank (8) of shell (1) locates to be provided with spout (4); Tracheae (2) upper end via through holes (9) is connected with valve (7); Valve (7) is connected with high pressure gas sebific duct (5); Tracheae (2) lower end is communicated with annular gas tank (8).
2. a cofferdam construction technology is characterized in that, may further comprise the steps: lifting appliance (14) is in place; Lifting antiseepage grouting and vibro device (10) and align piles position start air compressor machine (11) air-supply, and opening power (15) starts antiseepage grouting and vibro device 10; After antiseepage grouting and vibro device (10) worked well, grout pump (12) was sent into slurries in antiseepage grouting and vibro device (10), antiseepage grouting and vibro device (10) injection; Again antiseepage grouting and vibro device (10) is promoted, injection repeatedly, lifting, dark until the design stake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098639.9A CN102587382B (en) | 2012-04-05 | 2012-04-05 | Seepage-proofing grouting vibroflot and cofferdam construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210098639.9A CN102587382B (en) | 2012-04-05 | 2012-04-05 | Seepage-proofing grouting vibroflot and cofferdam construction process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102587382A true CN102587382A (en) | 2012-07-18 |
| CN102587382B CN102587382B (en) | 2014-07-02 |
Family
ID=46476575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210098639.9A Active CN102587382B (en) | 2012-04-05 | 2012-04-05 | Seepage-proofing grouting vibroflot and cofferdam construction process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102587382B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372788A (en) * | 2014-11-13 | 2015-02-25 | 中国水电基础局有限公司 | Vibro-replacement stone column machine and construction method thereof |
| CN110374095A (en) * | 2019-07-18 | 2019-10-25 | 广东厚普建设工程有限公司 | A kind of soft soil foundation compounding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172193A (en) * | 1996-07-29 | 1998-02-04 | 四平东北岩土工程公司 | High-pressure spray process for swing-vibrated hole |
| FR2835857A1 (en) * | 2002-02-08 | 2003-08-15 | Carmine Trani | Soil compacter e.g. for back-filled trenches has conical water diffuser shell to soften soil as it is compacted by a vibrating needle |
| CN1667202A (en) * | 2005-03-04 | 2005-09-14 | 赵延龙 | Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| CN202000330U (en) * | 2011-01-12 | 2011-10-05 | 北京长安光大机电设备有限公司 | Dry process vibroflot |
| CN202492849U (en) * | 2012-04-05 | 2012-10-17 | 中国水利水电第七工程局有限公司 | Anti-seepage grouting vibroflot |
-
2012
- 2012-04-05 CN CN201210098639.9A patent/CN102587382B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172193A (en) * | 1996-07-29 | 1998-02-04 | 四平东北岩土工程公司 | High-pressure spray process for swing-vibrated hole |
| FR2835857A1 (en) * | 2002-02-08 | 2003-08-15 | Carmine Trani | Soil compacter e.g. for back-filled trenches has conical water diffuser shell to soften soil as it is compacted by a vibrating needle |
| CN1667202A (en) * | 2005-03-04 | 2005-09-14 | 赵延龙 | Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| CN202000330U (en) * | 2011-01-12 | 2011-10-05 | 北京长安光大机电设备有限公司 | Dry process vibroflot |
| CN202492849U (en) * | 2012-04-05 | 2012-10-17 | 中国水利水电第七工程局有限公司 | Anti-seepage grouting vibroflot |
Non-Patent Citations (1)
| Title |
|---|
| 黄香春，任永明，唐桥: "气浆振冲注浆法原理探讨", 《四川建筑科学研究》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372788A (en) * | 2014-11-13 | 2015-02-25 | 中国水电基础局有限公司 | Vibro-replacement stone column machine and construction method thereof |
| CN110374095A (en) * | 2019-07-18 | 2019-10-25 | 广东厚普建设工程有限公司 | A kind of soft soil foundation compounding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102587382B (en) | 2014-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103215960B (en) | Grouting method for high polymer vertical support system | |
| CN205077453U (en) | Dam body structure combining concrete faced rockfill dam and upstream cofferdam | |
| CN204753574U (en) | High pressure jet grouting pile stagnant water curtain construction equipment | |
| CN204199335U (en) | A kind of pressure release well reducing PHC tube pile construction soil compaction effect | |
| CN205012288U (en) | Embankment dam pitch core -wall base | |
| CN202492849U (en) | Anti-seepage grouting vibroflot | |
| CN102587382B (en) | Seepage-proofing grouting vibroflot and cofferdam construction process thereof | |
| CN201459737U (en) | Foundation pit supporting structure | |
| CN102235008B (en) | Engineering pile deviation preventing structure of soft soil foundation and pretreatment method | |
| CN214574063U (en) | Closed structure of high water level large area foundation pit dewatering well | |
| CN108978648A (en) | A kind of dyke Cement Mixing Pile Construction Technology | |
| CN206706748U (en) | Wet spraying pile controlling stream modeling shape sea sand hydraulic reclamation area pile foundation | |
| CN202090324U (en) | Novel overflow cofferdam | |
| CN201778330U (en) | Clay waterproof curtain wall | |
| CN207727514U (en) | A kind of library basin antiseepage is anti-to lift structure | |
| CN103195077B (en) | A kind of dam foundation reinforcement frame structure and stabilization of dam foundation method | |
| CN113529725A (en) | Construction system and method for breaking rock cement soil pile by high-pressure water jet in hard soil layer foundation | |
| CN102535457A (en) | Method for treating slurry leakage of perforated holes of offshore pile foundation in process of utilizing steel casing to carry out pile foundation construction | |
| CN216515549U (en) | Water conservancy energy dissipation scour protection structure suitable for silt nature ground | |
| CN102605775A (en) | Combination pile of flexible pile and rigid pile concentrically arranged at upper end and lower end and pile forming method | |
| CN104988981A (en) | Construction method of riding well on existing shield drainage pipeline | |
| CN201738324U (en) | Project pile deflection prevention structure used on soft soil foundation | |
| CN204715502U (en) | To ride well system | |
| EP2886852B1 (en) | Construction for extracting, storing and releasing electrical energy | |
| CN204530683U (en) | A kind of pile making device ramming expansion CFG stake for spiral pore-forming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |