CN105908746A - Pile body concrete drilled core grout recharging device and method - Google Patents
Pile body concrete drilled core grout recharging device and method Download PDFInfo
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- CN105908746A CN105908746A CN201610247091.8A CN201610247091A CN105908746A CN 105908746 A CN105908746 A CN 105908746A CN 201610247091 A CN201610247091 A CN 201610247091A CN 105908746 A CN105908746 A CN 105908746A
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- grouting pipe
- grouting
- inflation
- teeming
- pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a pile body concrete drilled core grout recharging device and method. The device comprises a grouting system and an air charging system, wherein the grouting system comprises a grout pool, a grouting pump and a grouting pipe which communicate in sequence; the air charging system comprises an air charging pump, an air charging pipe and an air charging grout stop structure; one end of the air charging pipe is connected with the air charging pump, and the other end of the air charging pipe communicates with the air charging grout stop structure; the air charging grout stop structure is fixed to a set position of the grouting pipe in a sleeving mode; after the grouting pipe is placed into a drilled hole, air is charged into the air charging grout stop structure through the air charging pump until the drilled hole is blocked, and then grouting is carried out. A reverse stop structure of the device can be opened through high-pressure clear water; through the reverse stop structure, on one hand, concrete outside the grouting pipe is prevented from blocking the grouting hole, and on the other hand, the reverse stop structure can be opened through the high-pressure clear water, so that smooth grouting is ensured; the air charging grout stop structure can be fixed to any position of the grouting pipe through a pressing and fixing structure so as to adapt to grouting of different piles under different conditions.
Description
Technical field
The present invention relates to a kind of pile concrete drill core after-teeming sizing device and after-teeming paste-making method.
Background technology
Cast-in-situ bored pile is a kind of common pile-type, has an advantage in that stake is long and can choose flexibly, construct not by season in stake footpath
Limit and all kinds of soil condition can be widely used in and be provided that bigger bearing capacity of single pile etc..But applied at cast-in-situ bored pile
Journey also exists some problems, such as stake end and there is sediment and the problem of supporting course disturbing influence end resistance performance, pile concrete
Consolidation can occur volume contraction later, produces gap and cause what pile side resistance reduced to ask between pile concrete and borehole wall
Topic etc..For the problems referred to above, people develop pile-end post-grouting stake technology targetedly.
Along with the development of pile-end post-grouting technology, the problem during slip casting occurs the most therewith.The difficulty of built-in pipe pile-end post-grouting
Point is the making of casting head and burying underground of Grouting Pipe.In engineering pile, Grouting Pipe superficial part does not has concrete to wrap up, and constructs
Journey king-pile machine moves constructs with excavator, it is easy to causes the fracture blocking of superficial part Grouting Pipe, and easily goes out when deep Grouting Pipe is buried underground
Existing problem is mainly that joint is insecure and Grouting Pipe bending etc., and built-in slip casting pipe cannot be opened and just cannot complete after-teeming slurry work.
For ensureing being smoothed out of after-teeming slurry work, it is badly in need of inventing the device of a kind of after-teeming slurry.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of pile concrete drill core after-teeming sizing device and
After-teeming paste-making method, this apparatus structure is simple, easy to assembly, it is easy to operation, can either complete slip casting process smoothly, again can
Reduce the cost, shorten the engineering time, and the Grouting Pipe etc. after after-teeming has been starched can also recycle.
For achieving the above object, the present invention uses following technical proposals:
A kind of pile concrete drill core after-teeming sizing device, including filling system and gas charging system, wherein, filling system includes depending on
The slurry pool of secondary connection, grouting pump and Grouting Pipe, gas charging system includes that structure is only starched in inflator pump, gas tube and inflation, inflation
One end of pipe is connected with inflator pump, and the other end only starches fabric connectivity with inflation, and described inflation only slurry structure fit is fixed on slip casting
The setting position of pipe；After Grouting Pipe is positioned in boring, being inflated to inflation only slurry structure by inflator pump, boring until being full of
Hole, then carries out slip casting.
The purpose of inflation only slurry is to prevent grout and slurry plugs slip casting passage, when whole inflation only slurry structure gassy,
Slip casting passage can be full of, the effect only starched can be played.
Preferably, the sidewall of described Grouting Pipe being provided with several pressing fixed structures, pressing fixed structure protrudes Grouting Pipe
Sidewall, pressing fixed structure and Grouting Pipe pipeline between flexible member is set, by pressing can by pressing fixed structure press
Enter in the sidewall of Grouting Pipe, it is allowed to inflation only slurry structure moves along Grouting Pipe, after stopping pressing, recovers raised position, stops
The motion of pressing fixed structure.By extruding, inflation only slurry structure can be fixed on the setting position of Grouting Pipe.
Pressing fixed structure is the position in order to inflation only slurry structure is fixed on needs.
Preferably, described inflator pump is provided with pressure-control valve.The pressure of inflator pump can be adjusted by pressure-control valve.
Preferably, described inflation only slurry structure is made up of elastic material.
It is further preferred that described inflation only slurry structure is made up of elastomeric material, preferably elastic tape.The elasticity of elastic tape is relatively
Good and wear-resisting, after inflation, inflation only slurry elastic tape can be completely filled with boring, preferably plays the effect only starched.
Preferably, the end of described Grouting Pipe is pointed structures, processes several injected holes at distance pointed structures setpoint distance,
Arranging backstop structure in each injected hole, this backstop structure can prevent the material outside Grouting Pipe from entering injected hole, and then blocking
Injected hole.
It is further preferred that described backstop structure includes drawing pin and be wrapped in the fixation adhesive tape outside drawing pin, drawing pin rounded cap towards
Outside.
It is further preferred that the distance of described injected hole and Grouting Pipe end is 30-50cm.
Preferably, described gas tube is rubber hose.Rubber hose is convenient installs, and has high-low temperature resistant, without cracking, matter
The advantage that amount is light and connection sealing is good.
The after-teeming paste-making method of above-mentioned pile concrete drill core after-teeming sizing device, comprises the steps:
1) choose Grouting Pipe, the end of Grouting Pipe is processed into pointed structures, and in Grouting Pipe, processes injected hole, in slip casting
Installing backstop structure in hole, backstop structure only allows serosity to flow to outside Grouting Pipe inside Grouting Pipe；
2) inflation backstop structure is fixed on the setting position of Grouting Pipe, it is ensured that seal between inflation backstop structure and Grouting Pipe
Arrange；
3) chipping mends the pile crown of grouting pile levelling, arranges the soil layer near pile crown so that it is flush with stake top mark height；
4) quasi-complement grouting pile is holed, until at the bottom of drilling；
5) Grouting Pipe is placed in step 4) in the boring that obtains, the only slurry structure of the inflation in Grouting Pipe is inflated, until
Inflation only slurry structure blocking boring；
6) utilize water under high pressure to be washed open by the backstop structure in Grouting Pipe, finally utilize the Grouting Pipe bottom slip casting to quasi-complement grouting pile.
Step 3) in, pile crown the most all presss from both sides mud, is cut, chipping pile crown, and the soil layer near pile crown is high with stake top mark
Flush, be to ensure that the perpendicularity crept into.
Preferably, step 2) in, described inflation backstop structure is 40-60cm with the distance of Grouting Pipe end.
Preferably, step 4) in, is holed in the center of quasi-complement grouting pile.The center of quasi-complement slip casting is carried out
Boring, is to ensure that pile body is not deflected away from boring, it is ensured that the perpendicularity crept into.
Preferably, step 6) in, the mode of slip casting is interval grouting mode.
Preferably, step 6) in, the pressure limit of described high pressure clear water is 4-6MPa.
Preferably, step 6) in, after slip casting, inflation only slurry structure and Grouting Pipe are reclaimed.By inflation only slurry structure
Gas is released, and Grouting Pipe is extracted, can complete removal process.Traditional Grouting Pipe is during slip casting, due to serosity meeting
Blocking slip casting passage, it is not easy to Grouting Pipe is extracted, it is impossible to recycle.
The present invention have studied construction technology and the accident treatment of pile-end post-grouting technology, solves and cannot open at built-in slip casting pipe
A slip casting difficult problem afterwards, blocking high-pressure slip casting after using elastic tape to expand, thus complete slip casting process, compared with forefathers' research,
Actual with engineering closer to, the scope of application is wider.
The invention have the benefit that
1, the inflation of the present invention only slurry structure can be exitted to after slip casting, reclaim, owing to structure is only starched in inflation
Can stop that serosity is full of slip casting passage, on the one hand facilitate the recovery of Grouting Pipe, on the other hand ensure that the suitable of slip casting process
Profit is carried out；
2, the backstop structure of the present invention can be opened by high pressure clear water, and on the one hand backstop structure prevents the coagulation outside Grouting Pipe
On the other hand soil blocking injected hole, can be opened by high pressure clear water, and then ensure that what slip casting worked is smoothed out；
3, assembly of the invention simple in construction, easy to assembly, it is easy to operation, the most nimble, reduce slip casting to a certain extent
Cost, and can effective reduction of erection time；
4, inflation only slurry structure can be fixed on the optional position of Grouting Pipe by pressing fixed structure, in order to adapts to different bar
The slip casting of part piles with different；
5, Grouting Pipe after after-teeming has been starched and only slurry elastic tape can recycle easily.
Accompanying drawing explanation
Fig. 1 is pile concrete drill core after-teeming sizing device schematic diagram.
Wherein, 1, Grouting Pipe；2, inflator pump；3, rubber hose；4, structure is only starched in inflation；5, grouting pump；6, slurry
Liquid pool；7, pressing fixed structure；8, pressure-control valve.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
In Fig. 1, a kind of pile concrete drill core after-teeming sizing device, including Grouting Pipe 1, self-filler, grouting pump 5,
Slurry pool 6.Self-filler mainly includes inflator pump 2, rubber hose 3, inflation only slurry structure 4 etc..Grouting Pipe 1 side
Face arranges some pressing fixed structures 7, by extruding, inflation only slurry structure 4 can be fixed on Grouting Pipe 1 desired location, fill
Gas only slurry structure 4 is connected with inflator pump 2 by rubber hose 3, and inflator pump 2 is provided with pressure-control valve 8, can be in necessity
When pressure is adjusted.Rubber hose 3 and inflation only slurry structure 4 is constituted by top-quality rubber, high-low temperature resistant, nothing
Cracking, light weight, it is completely embedded.During slip casting, inflator pump 2 is opened, filled in only slurry elastic tape 4 by rubber hose 3
Gas, until being full of whole boring, thus reaches the purpose only starched.
Being provided with several pressing fixed structures 7 on the sidewall of described Grouting Pipe 1, pressing fixed structure 7 protrudes Grouting Pipe 1
Sidewall, arranges flexible member between pressing fixed structure 7 and Grouting Pipe 1 pipeline, can be by pressing fixed structure 7 by pressing
Being pressed in the sidewall of Grouting Pipe 1, now, inflation only slurry structure 7 can move along Grouting Pipe 1, after stopping pressing, extensive
Multiple raised position, stops the motion of pressing fixed structure 7.By extruding, inflation only slurry structure 4 can be fixed on Grouting Pipe 1
Setting position on.
It is sequentially connected with by pipeline between Grouting Pipe 1, grouting pump 5 and slurry pool 6.
The using method of the device of a kind of pile concrete drill core after-teeming slurry, comprises the following steps:
A, choose suitable pile end grouting pipe 1, with iron hammer head, pointed opening is pounded in the bottom of Grouting Pipe 1, away from Grouting Pipe 1
Bottom about 40cm stamps equally distributed 16 apertures, then lays drawing pin in each aperture, then adds with insulating tape
Rigid package band is wound around parcel, blocks injected hole, i.e. complete the making of Grouting Pipe 1 when preventing pile concrete from pouring；
B, by pressing fixed structure 7, inflation is only starched structure 4 and is fixed on Grouting Pipe 1 desired location, it is ensured that tightly connect,
One end of rubber hose 3 joint that only slurry structure 4 is locked by nut with inflation is connected, and by iron wire tightly colligation, surrounding
Processing with joint seal glue, the other end is connected with inflator pump 2, for ensureing sealing, also uses iron wire colligation, and processes with joint seal glue；
C. chipping mends the pile crown of grouting pile and with mortar levelling, with the soil layer near the whole good pile crown of excavator, and lays melon-seed hull
And plain concrete so that it is flush with stake top mark height；
D. determine the center mending grouting pile, set up rig, adjust support position, it is ensured that support is steady, level, and
Lathe rod bit alignment is made to intend the center of grouting pile, by the perpendicularity of transit survey rig lathe bar, until drilling stake
The end end hole；
E. in pile concrete centre-drilling hole, transfer Grouting Pipe 1 and inflation only slurry structure 4, treat that Grouting Pipe 1 is put at the bottom of hole, beat
Driving inflator pump 2, inject gas by band tubing 3 in inflation only slurry structure 4, whole process ensures sealing, if desired
Pressure size can be adjusted by pressure-control valve 8, wait until that inflation only slurry structure 4 is expanded to blocking boring, use high pressure clear water
Opening plug, sprayed by the drawing pin at casting head, then utilize grouting pump 5, injected at the bottom of stake by serosity from slurry pool 6, after-teeming is starched
Use interval grouting mode, treat that whole slip casting process completes, inflation is only starched after structure 4 exits, Grouting Pipe 1 is extracted,
Grouting Pipe 1 and inflation only slurry structure 4 can be reclaimed.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to invention protection domain
System, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art need not
Pay various amendments that creative work can make or deformation is the most within the scope of the present invention.
Claims (10)
1. a pile concrete drill core after-teeming sizing device, it is characterised in that: include filling system and gas charging system, wherein,
Filling system includes slurry pool, grouting pump and the Grouting Pipe being sequentially communicated, and gas charging system includes inflator pump, gas tube and inflation
Only starching structure, one end of gas tube is connected with inflator pump, and the other end only starches fabric connectivity with inflation, and structure is only starched in described inflation
Fit is fixed on the setting position of Grouting Pipe；After Grouting Pipe is positioned in boring, filled to inflation only slurry structure by inflator pump
Gas, until being full of boring, then carries out slip casting.
After-teeming sizing device the most according to claim 1, it is characterised in that: it is provided with some on the sidewall of described Grouting Pipe
Individual pressing fixed structure, pressing fixed structure protrudes the sidewall of Grouting Pipe, arranges between pressing fixed structure and Grouting Pipe pipeline
Flexible member, can be pressed into pressing fixed structure in the sidewall of Grouting Pipe by pressing, it is allowed to inflation only slurry structure is along slip casting
Pipe moves, and after stopping pressing, recovers raised position, stops the motion of pressing fixed structure.
After-teeming sizing device the most according to claim 1, it is characterised in that: it is provided with pressure-control valve on described inflator pump.
After-teeming sizing device the most according to claim 1, it is characterised in that: described inflation only slurry structure is by elastic material system
Become；
Preferably, described inflation only slurry structure only starches elastic tape for inflation.
After-teeming sizing device the most according to claim 1, it is characterised in that: the end of described Grouting Pipe is pointed structures,
Processing several injected holes at distance pointed structures setpoint distance, arrange backstop structure in each injected hole, this backstop structure can
Prevent the material outside Grouting Pipe from entering injected hole, and then blocking injected hole；
Preferably, described backstop structure includes drawing pin and is wrapped in the fixation adhesive tape outside drawing pin, and drawing pin rounded cap is towards outside；
Preferably, described injected hole is 30-50cm with the distance of Grouting Pipe end.
After-teeming sizing device the most according to claim 1, it is characterised in that: described gas tube is rubber hose.
7. the after-teeming paste-making method of the arbitrary described pile concrete drill core after-teeming sizing device of claim 1-6, it is characterised in that: bag
Include following steps:
1) choose Grouting Pipe, the end of Grouting Pipe is processed into pointed structures, and in Grouting Pipe, processes injected hole, in slip casting
Installing backstop structure in hole, backstop structure only allows serosity to flow to outside Grouting Pipe inside Grouting Pipe；
2) inflation backstop structure is fixed on the setting position of Grouting Pipe, it is ensured that seal between inflation backstop structure and Grouting Pipe
Arrange；
3) chipping mends the pile crown of grouting pile levelling, arranges the soil layer near pile crown so that it is flush with stake top mark height；
4) quasi-complement grouting pile is holed, until at the bottom of drilling；
5) Grouting Pipe is placed in step 4) in the boring that obtains, the only slurry structure of the inflation in Grouting Pipe is inflated, until
Inflation only slurry structure blocking boring；
6) utilize water under high pressure to be washed open by the backstop structure in Grouting Pipe, finally utilize the Grouting Pipe bottom slip casting to quasi-complement grouting pile.
After-teeming paste-making method the most according to claim 7, it is characterised in that: step 2) in, described inflation backstop structure
It is 40-60cm with the distance of Grouting Pipe end.
After-teeming paste-making method the most according to claim 7, it is characterised in that: step 4) in, in quasi-complement grouting pile
Hole in heart position.
After-teeming paste-making method the most according to claim 7, it is characterised in that: step 6) in, the mode of slip casting is interval
Grouting mode；The pressure limit of described high pressure clear water is 4-6MPa；After slip casting, inflation only slurry structure and Grouting Pipe are returned
Receive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247091.8A CN105908746B (en) | 2016-04-20 | 2016-04-20 | A kind of pile concrete drill core after-teeming sizing device and after-teeming paste-making method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610247091.8A CN105908746B (en) | 2016-04-20 | 2016-04-20 | A kind of pile concrete drill core after-teeming sizing device and after-teeming paste-making method |
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| Publication Number | Publication Date |
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| CN105908746A true CN105908746A (en) | 2016-08-31 |
| CN105908746B CN105908746B (en) | 2017-11-21 |
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| CN201610247091.8A Active CN105908746B (en) | 2016-04-20 | 2016-04-20 | A kind of pile concrete drill core after-teeming sizing device and after-teeming paste-making method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894418A (en) * | 2017-02-28 | 2017-06-27 | 济南轨道交通集团有限公司 | A kind of metalling plants the running pulp administering method of prefabricated pile |
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| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN102433878A (en) * | 2011-09-29 | 2012-05-02 | 广州市建筑科学研究院有限公司 | Post-grouting device and construction method for pipe pile foundation |
| CN102741497A (en) * | 2009-11-19 | 2012-10-17 | 伊安·格雷 | External casing packer |
| US20140234031A1 (en) * | 2013-02-15 | 2014-08-21 | 9187-8850 Québec Inc. | Method, kit and system for injecting grout into a borehole, method of deploying a tube into a borehole for grout injection and leader for use in a grout injection system |
| CN104164865A (en) * | 2014-07-31 | 2014-11-26 | 沈嘉艳 | Grouting air cushion plug |
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2016
- 2016-04-20 CN CN201610247091.8A patent/CN105908746B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN102741497A (en) * | 2009-11-19 | 2012-10-17 | 伊安·格雷 | External casing packer |
| CN102433878A (en) * | 2011-09-29 | 2012-05-02 | 广州市建筑科学研究院有限公司 | Post-grouting device and construction method for pipe pile foundation |
| US20140234031A1 (en) * | 2013-02-15 | 2014-08-21 | 9187-8850 Québec Inc. | Method, kit and system for injecting grout into a borehole, method of deploying a tube into a borehole for grout injection and leader for use in a grout injection system |
| CN104164865A (en) * | 2014-07-31 | 2014-11-26 | 沈嘉艳 | Grouting air cushion plug |
Non-Patent Citations (1)
| Title |
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| 张乾青等: "预埋注浆管堵塞事故及其处理方法的研究", 《岩石力学与工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894418A (en) * | 2017-02-28 | 2017-06-27 | 济南轨道交通集团有限公司 | A kind of metalling plants the running pulp administering method of prefabricated pile |
| CN106894418B (en) * | 2017-02-28 | 2019-08-13 | 济南轨道交通集团有限公司 | A kind of metalling plants the running pulp administering method of prefabricated pile |
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| Publication number | Publication date |
|---|---|
| CN105908746B (en) | 2017-11-21 |
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