CN107100165A - A kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method - Google Patents
A kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method Download PDFInfo
- Publication number
- CN107100165A CN107100165A CN201710427065.8A CN201710427065A CN107100165A CN 107100165 A CN107100165 A CN 107100165A CN 201710427065 A CN201710427065 A CN 201710427065A CN 107100165 A CN107100165 A CN 107100165A
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- Prior art keywords
- steel cylinder
- elastic steel
- strut
- rope
- cylinder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Abstract
The invention discloses a kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method, characteristic is played using elastic steel cylinder is outer in a free state, the constraint to elastic steel cylinder is released when being put into drilling stake holes, now elastic steel cylinder freely opens within the specific limits, reach the purpose for filling up hole slot, the lower mouth of elastic steel cylinder utilizes the template action of nylon train of dress, the bottom concrete of closure is limited within the specific limits, and the skeleton function of concrete is played, elastic steel cylinder and the space of solution cavity bottom surface are blocked completely.The present invention is simple in construction, easy to operate.
Description
Technical field
The present invention relates to pile foundation engineering technique field, more specifically to a kind of drilled pile solution cavity leak stopping Elastic Steel
Cylinder and its operating method.
Background technology
Karst area drilled pile because ground is with the presence of substantial amounts of solution cavity, particularly tall and big non-filler it is molten
Hole, once running into this solution cavity, will take for the very big time, the method that used to be used mainly has two kinds：One kind is throwing
Filler, throwing clay, stone etc., concrete can be also filled out sometimes；Another method is the sizing steel cylinder of small No. one of decentralization,
Then proceed to lower brill.The first processing mode is very huge due to the amount of filling, and needs repeatedly reciprocal throwing, need to consume a large amount of
Engineering material and the time, often collapsed sometimes in casting concrete；Bury the method meeting for putting small size steel cylinder second
Original design stake footpath is reduced, the bearing capacity of pile foundation is had influence on, and steel cylinder bottom exists due to can not be closely sealed with solution cavity bottom surface
The problems such as race leakage occurs when spillage, casting concrete occurring in construction.
For faster, the more preferable processing large-scale solution cavity problem of drilled pile, the present invention can fit using elastic steel cylinder reducing, train of dress
The characteristics of answering topography variation, designs a kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method.
The content of the invention
The technical problem to be solved in the present invention is that there is provided a kind of elastic steel cylinder of drilled pile solution cavity leak stopping and its operation side
Method.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of drilled pile solution cavity leak stopping Elastic Steel
Cylinder, including elastic steel cylinder main body and its receipts control device and lower end plugging system；The elastic steel cylinder main body includes elastic steel cylinder, institute
It is that the one side for having automatic enlarged diameter ability in free state can open steel tube structure to state elastic steel cylinder；It is described to receive control device bag
Include main hoist cable, strut and control cord；The main hoist cable is used to sling elastic steel cylinder, and transfers molten to drilled pile in elastic steel cylinder
Taken out after in place from elastic steel cylinder in hole；The length of the strut is than the precompressed elastic big 1~2cm of cylinder diameter, its one end
It is welded on the bracket of barrel, the other end is arranged at the fluting on cylinder top and suppressed by positioning small reinforcing bar；The control cord
One end is connected with Elastic Steel drum outer wall, and the other end of the control cord is to hang on strut after cylinder top is bypassed；The elasticity
Steel cylinder is its pre-compressed state before decentralization to drilled pile solution cavity, transfers to drilled pile solution cavity and passes through afterwards in place in the elastic steel cylinder
Crane pulls strut to be inverted so that the other end of control cord and strut depart from, and realizes that the diameter of elastic steel cylinder freely becomes big；Institute
The bottom that lower end plugging system is stated with elastic steel cylinder is connected, including the nylon train of dress for closure, and the nylon train of dress passes through skirt
Pendulum frenulum is bundled on the outside of elastic steel cylinder, is poured after the elastic steel cylinder is in place in decentralization above the solution cavity bottom surface line at cylinder bottom
Bottom concrete, the control cord freely becomes big by bearing the diameter of the elastic steel cylinder of Stress control in fixed range.
In such scheme, the strut is processed for shaped steel, and pile is provided with the strut, small close to positioning
The side of reinforcing bar, which is fixed with, unloads solution rope, is hung after the elastic steel cylinder decentralization is in place by crane and unloads solution rope control strut upset
To cause the other end of control cord to depart from strut, realize that the diameter of elastic steel cylinder freely becomes big.
In such scheme, the control cord includes control cord main rope, control large rope rope and sub- rope locator card, the control
Rope main rope, control large rope rope to be steel cord structure and both be braiding connection, it is described control large rope rope by sub- rope locator card with
Elastic Steel drum outer wall is connected, and the control cord main rope is to hang on the pile of strut after cylinder top is bypassed.
In such scheme, the nylon train of dress is enclosed construction of revealing all the details；The outer wall welding limited location of the elastic steel cylinder
Reinforced steel bar ring with prevent train of dress frenulum glide.
In such scheme, the main hoist cable be one end without fag end, jointless steel wire rope, from elastic steel cylinder tip side
Through simultaneously wire line shoe connection at the reserving hole of wall.
The present invention also provides a kind of operating method of the elastic steel cylinder of above-mentioned drilled pile solution cavity leak stopping, comprises the following steps：
Step S010, the height and elastic steel cylinder for determining elastic steel cylinder according to the height of solution cavity is higher by than solution cavity top surface line
More than 50cm, elastic steel cylinder carries out precommpression when segmentation is rolled, and interim fixed by spot welding, is then connected into required height
Degree；
Step S020, the other end of control cord is to hang on strut after cylinder top is bypassed, and releases the one side point of elastic steel cylinder
Section spot welding, main hoist cable is at the reserving hole of elastic steel cylinder tip side wall through simultaneously wire line shoe connection；
Step S030, elastic steel cylinder using main hoist cable sling and transferred to drilled pile solution cavity, in the elastic steel cylinder of decentralization
During water or mud are injected into elastic steel cylinder inside according to buoyancy situation, elastic steel cylinder is transferred to main hoist cable behind position from bullet
Property steel cylinder take out；
Step S040, strut is hung by crane, slings strut after constraint of the small reinforcing bar of positioning to strut is released, with
Control cord automatically disengages strut and releases its constraint to elastic steel cylinder afterwards, realizes that the diameter of elastic steel cylinder freely becomes greatly, will support
Bar takes out at the fluting on cylinder top；
Step S050, pours bottom concrete, bottom concrete exists using tremie method above the solution cavity bottom surface line at cylinder bottom
Surrounding is flowed in the range of the constraint lower edge constraint of nylon train of dress, space is blocked.
Implement a kind of elastic steel cylinder of drilled pile solution cavity leak stopping of the invention and its operating method, have the advantages that：
The present invention makes the elastic steel cylinder of placement fit completely drilling by setting the openness of the elastic steel cylinder of control cord control
Hole wall, prevent the leakage of mud in hole, control cord system is hung on the pile of the strut of elastic steel cylinder top surface, by unloading solution
One end of Suo Ladong struts, overturns it, reaches that control cord departs from the purpose of strut；In elastic steel cylinder bottom, train of dress of revealing all the details is set
And bottom concrete, it can prevent from producing space because of the out-of-flatness of solution cavity bottom surface, can reach the purpose blocked completely.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is that a kind of elastic steel cylinder of drilled pile solution cavity leak stopping of the invention is lifting schematic elevation view preceding in place；
Fig. 2 is the central cross-sectional views of Fig. 1 vertically；
Fig. 3 is a kind of schematic elevation view of the elastic steel cylinder of drilled pile solution cavity leak stopping of the invention after lifting in place；
Fig. 4 is the central cross-sectional views of Fig. 3 vertically；
Fig. 5 is sectional views of the Fig. 1 along A-A positions；
Fig. 6 is sectional views of the Fig. 1 along B-B positions；
Fig. 7 is sectional views of the Fig. 1 along C-C positions；
Fig. 8 is sectional views of the Fig. 2 along D-D positions；
Fig. 9 is sectional views of the Fig. 2 along E-E positions；
Figure 10 is sectional views of the Fig. 2 along F-F positions.
In figure：1- elasticity steel cylinders；The main hoist cables of 2-；3- control cord main ropes；4- controls large rope rope；5- rope locator cards；6- is supportted
Bar；7- piles；8- positions small reinforcing bar；9- unloads solution rope；10- nylon train of dress；11- train of dress frenulums；12- limit steel bar rings；13- solution cavities
Top surface line；14- solution cavities bottom surface line；15- bottom concretes.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.
As Figure 1-10 shows, the present invention provides a kind of drilled pile solution cavity leak stopping elastic steel cylinder, including elastic steel cylinder main body
And its control device and lower end plugging system are received, elastic steel cylinder main body includes elastic steel cylinder 1, and elastic steel cylinder 1 is in free state tool
The one side for having automatic enlarged diameter ability can open steel tube structure；Receiving control device includes main hoist cable 2, strut 6 and control cord.
Main hoist cable 2 be one end without fag end, jointless steel wire rope, at the reserving hole of the elastic tip side wall of steel cylinder 1
Through and wire line shoe connection, for elastic steel cylinder 1 to be sling, and elastic steel cylinder 1 transfer to drilled pile solution cavity in place after from
Taken out in elastic steel cylinder 1.Main hoist cable 2 is easy to it to be extracted out from hole using whole lifting rope.
Strut 6 processes for shaped steel, and its length is than the big 1~2cm of the precompressed elastic diameter of steel cylinder 1；Set on strut 6
There is pile 7, solution rope 9 is unloaded being fixed with close to the side for positioning small reinforcing bar 8；One end of strut 6 is welded on the bracket of barrel, separately
One end is arranged at the fluting on cylinder top and suppressed by positioning small reinforcing bar 8.
Control cord includes control cord main rope 3, control large rope rope 4 and sub- rope locator card 5, control cord main rope 3, control large rope rope
4 be steel cord structure and both are braiding connection, and control large rope rope 4 is connected by sub- rope locator card 5 with the elastic outer wall of steel cylinder 1
Connect, control cord main rope 3 is to hang on the pile 7 of strut 6 after cylinder top is bypassed.
Elastic steel cylinder 1 is its pre-compressed state before decentralization to drilled pile solution cavity, is transferred in elastic steel cylinder 1 to drilled pile solution cavity
Hung afterwards by crane in place and unload the solution control strut 6 of rope 9 and overturn, to cause control cord main rope 3 to depart from from strut 6, realize bullet
The diameter of property steel cylinder 1 freely becomes big.
Lower end plugging system is connected with the bottom of elastic steel cylinder 1, including the nylon train of dress 10 for closure, nylon train of dress 10
The elastic outside of steel cylinder 1 is bundled in by train of dress frenulum 11.Preferably, nylon train of dress 10 is enclosed construction of revealing all the details, and can be prevented because molten
The out-of-flatness of hole bottom surface and produce space.The outer wall of elastic steel cylinder 1 is welded with limit steel bar ring 12, to prevent under train of dress frenulum 11
It is sliding.Bottom concrete 15 is poured in the top of solution cavity bottom surface line 14 at cylinder bottom after elastic steel cylinder 1 is in place in decentralization, large rope rope is controlled
4 freely become big by bearing the diameter of the elastic steel cylinder 1 of Stress control in fixed range.
The present invention also provides a kind of operating method of the elastic steel cylinder of drilled pile solution cavity leak stopping, comprises the following steps：
Step S010, determines the height of elastic steel cylinder 1 according to the height of solution cavity and elastic steel cylinder 1 is higher than solution cavity top surface line 13
Go out more than 50cm, elastic steel cylinder 1 carries out precommpression when segmentation is rolled, and interim fixed by spot welding, needed for being then connected into
Highly；
Step S020, the other end of control cord is to hang on strut 6 after cylinder top is bypassed, and releases the one side of elastic steel cylinder 1
Segmentation spot welding, main hoist cable 2 is at the reserving hole of the elastic tip side wall of steel cylinder 1 through simultaneously wire line shoe connection；
Step S030, elastic steel cylinder 1 using main hoist cable 2 sling and transferred to drilled pile solution cavity, in the elastic steel cylinder 1 of decentralization
During water or mud are injected into the elastic inside of steel cylinder 1 according to buoyancy situation, elastic steel cylinder 1 is transferred in place afterwards by main hoist cable
2 take out from elastic steel cylinder 1；
Step S040, strut 6 is hung by crane, hangs strut 6 after constraint of the small reinforcing bar 8 of positioning to strut 6 is released
Rise, subsequent control cord automatically disengages strut 6 and releases its constraint to elastic steel cylinder 1, realize that the diameter of elastic steel cylinder 1 freely becomes
Greatly, strut 6 is taken out at the fluting on cylinder top；
Step S050, bottom concrete 15, back cover coagulation are poured using tremie method in the top of solution cavity bottom surface line 14 at cylinder bottom
Soil 15 flows to surrounding in the range of the constraint lower edge constraint of nylon train of dress 10, and space is blocked.
The operation principle of the present invention is as follows：Characteristic is played using elastic steel cylinder 1 is outer in a free state, drilling stake holes is being put into
The constraint to elastic steel cylinder 1 is released when interior, now elastic steel cylinder 1 freely opens within the specific limits, reaches the mesh for filling up hole slot
, the lower mouth of elastic steel cylinder 1 utilizes the template action of nylon train of dress 10, and the bottom concrete 15 of closure is limited into certain limit
It is interior, and the skeleton function of concrete is played, elastic steel cylinder 1 and the space of solution cavity bottom surface are blocked completely；Control cord main rope 3 is
On the pile 7 for the strut 6 for hanging over the elastic top of steel cylinder 1, the other end of strut 6 positions small reinforcing bar 8 and pushed down, and positions small reinforcing bar 8
It can be bent under certain pulling force and lose effectiveness, the solution rope 9 that unloads being bundled in by traction on strut 6 pulls strut 6 to overturn, from
And automatically disengage control cord main rope 3 from pile 7, reach and release its purpose constrained elastic steel cylinder 1, while not being again
Complete to decontrol, but decontroled in certain free degree, when pouring a tin inner concrete, control large rope rope 4 can undertake pulling force, prevent
Elastic steel cylinder 1 is excessively automatic to be expanded.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (6)
1. a kind of drilled pile solution cavity leak stopping elastic steel cylinder, including elastic steel cylinder main body and its receipts control device and lower end closure system
System, it is characterised in that the elastic steel cylinder main body includes elastic steel cylinder (1), the elastic steel cylinder (1) is to have in free state
The one side of automatic enlarged diameter ability can open steel tube structure；The control device of receiving includes main hoist cable (2), strut (6) and control
Rope；
The main hoist cable (2) is used to sling elastic steel cylinder (1), and after elastic steel cylinder (1) decentralization to drilled pile solution cavity in place
Taken out from elastic steel cylinder (1)；
The length of the strut (6) is welded on the bracket of barrel than precompressed elastic steel cylinder (1) big 1~2cm of diameter, its one end
On, the other end is arranged at the fluting on cylinder top and suppressed by positioning small reinforcing bar (8)；
One end of the control cord is connected with elastic steel cylinder (1) outer wall, and the other end of the control cord is after cylinder top is bypassed
Hang on strut (6)；
The elastic steel cylinder (1) is its pre-compressed state before decentralization to drilled pile solution cavity, in elastic steel cylinder (1) decentralization to brill
Stake solution cavity in hole pulls strut (6) to be inverted so that the other end of control cord and strut (6) depart from by crane afterwards in place, realizes bullet
The diameter of property steel cylinder (1) freely becomes big；
The lower end plugging system is connected with the bottom of elastic steel cylinder (1), including the nylon train of dress (10) for closure, the Buddhist nun
Imperial train of dress (10) is bundled on the outside of elastic steel cylinder (1) by train of dress frenulum (11), in the elastic steel cylinder (1) after decentralization is in place
Bottom concrete (15) is poured above the solution cavity bottom surface line (14) at cylinder bottom, the control cord is by bearing Stress control Elastic Steel
The diameter of cylinder (1) freely becomes big in fixed range.
2. a kind of drilled pile solution cavity leak stopping according to claim 1 elasticity steel cylinder, it is characterised in that the strut (6)
Processed for shaped steel, pile (7) is provided with the strut (6), solution is unloaded being fixed with close to the side for positioning small reinforcing bar (8)
Rope (9), is hung by crane after elastic steel cylinder (1) decentralization is in place and unloads solution rope (9) control strut (6) and be inverted so as to control
The other end of rope processed departs from strut (6), realizes that the diameter of elastic steel cylinder (1) freely becomes big.
3. a kind of drilled pile solution cavity leak stopping according to claim 2 elasticity steel cylinder, it is characterised in that the control cord bag
Include control cord main rope (3), control large rope rope (4) and sub- rope locator card (5), the control cord main rope (3), control large rope rope (4)
For steel cord structure and both are braiding connection, the control large rope rope (4) passes through sub- rope locator card (5) and elastic steel cylinder (1)
Outer wall is connected, and the control cord main rope (3) is to hang on the pile (7) of strut (6) after cylinder top is bypassed.
4. a kind of drilled pile solution cavity leak stopping according to claim 1 elasticity steel cylinder, it is characterised in that the nylon train of dress
(10) it is enclosed construction of revealing all the details；The outer wall of the elastic steel cylinder (1) is welded with limit steel bar ring (12) to prevent train of dress frenulum
(11) glide.
5. a kind of drilled pile solution cavity leak stopping according to claim 1 elasticity steel cylinder, it is characterised in that the main hoist cable
(2) for one end without fag end, jointless steel wire rope, at the reserving hole of elastic steel cylinder (1) tip side wall through and steel wire
Rope card connection.
6. a kind of operating method of elastic steel cylinder of drilled pile solution cavity leak stopping any one of claim 1-5, its feature exists
In comprising the following steps：
Step S010, determines the height and elasticity steel cylinder (1) of elastic steel cylinder (1) than solution cavity top surface line (13) according to the height of solution cavity
Be higher by more than 50cm, elastic steel cylinder (1) be segmented when rolling progress precompressed contract it is interim fixed with spot welding, needed for being then connected into
Highly；
Step S020, the other end of control cord is to hang on strut (6) after cylinder top is bypassed, and releases the one side of elastic steel cylinder (1)
Segmentation spot welding, main hoist cable (2) is at the reserving hole of elastic steel cylinder (1) tip side wall through simultaneously wire line shoe connection；
Step S030, elastic steel cylinder (1) using main hoist cable (2) sling and transferred to drilled pile solution cavity, in the elastic steel cylinder of decentralization
(1) according to buoyancy situation to injection water or mud inside elastic steel cylinder (1) during, elastic steel cylinder (1) decentralization in place afterwards will be main
Hoist cable (2) takes out from elastic steel cylinder (1)；
Step S040, strut (6) is hung by crane, by strut after constraint of the small reinforcing bar (8) of positioning to strut (6) is released
(6) sling, subsequent control cord automatically disengages strut (6) and releases its constraint to elastic steel cylinder (1), realize elastic steel cylinder (1)
Diameter freely become greatly, strut (6) is taken out at the fluting on cylinder top；
Step S050, bottom concrete (15), back cover coagulation are poured using tremie method above the solution cavity bottom surface line (14) at cylinder bottom
Native (15) flow to surrounding in the range of the constraint lower edge constraint of nylon train of dress (10), and space is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427065.8A CN107100165A (en) | 2017-06-08 | 2017-06-08 | A kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710427065.8A CN107100165A (en) | 2017-06-08 | 2017-06-08 | A kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100165A true CN107100165A (en) | 2017-08-29 |
Family
ID=59659750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710427065.8A Pending CN107100165A (en) | 2017-06-08 | 2017-06-08 | A kind of drilled pile solution cavity leak stopping elastic steel cylinder and its operating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107100165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855029A (en) * | 2021-04-26 | 2021-05-28 | 中铁九局集团第七工程有限公司 | Goaf drilling external pipe expansion construction method |
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| CN101871197A (en) * | 2010-06-17 | 2010-10-27 | 中交二航局第三工程有限公司 | Construction method for plugging air gap between bottom hole of pier steel suspension box and foundation pile |
| CN204040025U (en) * | 2014-08-18 | 2014-12-24 | 广州市第二建筑工程有限公司 | A kind of reinforcing cage for solution cavity geology pile |
| CN204551456U (en) * | 2015-04-07 | 2015-08-12 | 浙江大华建设集团有限公司 | A kind of steel sleeve being applicable to the cast-in-situ bored pile of solution cavity geology |
| CN105625420A (en) * | 2016-03-10 | 2016-06-01 | 西北综合勘察设计研究院 | Extension type manual hole digging pile support structure and construction method thereof |
| CN206859211U (en) * | 2017-06-08 | 2018-01-09 | 中交第二航务工程勘察设计院有限公司 | A kind of elastic steel cylinder of drilled pile solution cavity leak stopping |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2427660A1 (en) * | 1973-06-08 | 1975-01-23 | Hattum & Blandevoort B V Van | SILENT LAMINATE |
| CN101644050A (en) * | 2009-09-01 | 2010-02-10 | 中交第二航务工程局有限公司 | Combined steel casing and construction method of waterborne drilled pile based on same |
| CN101871197A (en) * | 2010-06-17 | 2010-10-27 | 中交二航局第三工程有限公司 | Construction method for plugging air gap between bottom hole of pier steel suspension box and foundation pile |
| CN204040025U (en) * | 2014-08-18 | 2014-12-24 | 广州市第二建筑工程有限公司 | A kind of reinforcing cage for solution cavity geology pile |
| CN204551456U (en) * | 2015-04-07 | 2015-08-12 | 浙江大华建设集团有限公司 | A kind of steel sleeve being applicable to the cast-in-situ bored pile of solution cavity geology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855029A (en) * | 2021-04-26 | 2021-05-28 | 中铁九局集团第七工程有限公司 | Goaf drilling external pipe expansion construction method |
| WO2022117124A1 (en) * | 2021-04-26 | 2022-06-09 | 中铁九局集团第七工程有限公司 | Construction method for outward expansion pipe in drill hole in goaf |
| JP2022553449A (en) * | 2021-04-26 | 2022-12-22 | 中▲鉄▼九局集▲団▼第七工程有限公司 | External expansion pipe construction method for drilling in the mining zone |
| JP7292772B2 (en) | 2021-04-26 | 2023-06-19 | 中▲鉄▼九局集▲団▼第七工程有限公司 | External expansion pipe construction method for drilling in the mining zone |
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Application publication date: 20170829 |
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