CN104213555A - Ultra-long pile foundation steel protection tube nondestructive recovery method - Google Patents

Ultra-long pile foundation steel protection tube nondestructive recovery method Download PDF

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Publication number
CN104213555A
CN104213555A CN201410416202.4A CN201410416202A CN104213555A CN 104213555 A CN104213555 A CN 104213555A CN 201410416202 A CN201410416202 A CN 201410416202A CN 104213555 A CN104213555 A CN 104213555A
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China
Prior art keywords
casing
socket
protection tube
unit
interior
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CN201410416202.4A
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Chinese (zh)
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CN104213555B (en
Inventor
徐胜祥
毛义华
武可爽
李卫炎
黄晓伟
周权
盛永军
盛振华
高水堂
孔庆林
邵燕华
宋建强
方俊杰
林琼
孙叶萍
陈定海
卞杭峰
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ZHEJIANG TRANSPORTATION ENGINEERING CONSTRUCTION GROUP NO3 TRANSPORTATION ENGINEERING Co Ltd
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ZHEJIANG TRANSPORTATION ENGINEERING CONSTRUCTION GROUP NO3 TRANSPORTATION ENGINEERING Co Ltd
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Priority to CN201410416202.4A priority Critical patent/CN104213555B/en
Publication of CN104213555A publication Critical patent/CN104213555A/en
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Publication of CN104213555B publication Critical patent/CN104213555B/en
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Abstract

The invention relates to the field of pile foundation protection tube pile construction, and discloses an ultra-long pile foundation steel protection tube nondestructive recovery method. The method comprises the following steps that a, an operation platform (4) is arranged, and an outer protection tube (1) is buried; b, an inner protection tube (2) is buried in the outer protection tube (1); c, a drill bit of a drilling machine is charged into the inner protection tube (2), and holes are drilled in the inner protection tube (2); d, after the drilling completion, concrete casting is carried out; e, after the casting completion, the inner protection tube (2) is pulled out before the primary concrete setting; f, a concrete pile foundation is detected, and the outer protection tube (1) is pulled out after the detection qualification; g, the outer protection tube (1) and the inner protection tube (2) are trimmed for being used in a next time. The method provided by the invention has the advantages that the steel protection tube is designed into a segmented flange connecting structure, meanwhile, a pressure ejection mode is adopted, i.e., the steel protection tube can still be taken out to be repeatedly used during the preparation of the steel protection tube concrete foundation pile being more than 21 to 30m, the energy sources are saved, the environment is protected, and the engineering construction cost is reduced.

Description

Super long pile basis steel pile casting can't harm recovery method
Technical field
The present invention relates to pile foundation steel pile casting pile driving construction field, particularly related to a kind of super long pile basis steel pile casting and can't harm recovery method.
Background technology
At present, traditional pile foundation steel pile casting construction, the steel using amount of steel pile casting is large, and steel pile casting also cannot effectively be recycled, and therefore cost is higher.Although also there is the construction method related to steel pile casting recycling in prior art, but its steel pile casting being merely able to solution less than 10 meters reclaims, when steel pile casting length is greater than 11 meters, or arrive 30 meters and longer time, because the contact area of steel pile casting and concrete increases greatly, therefore, use conventional methods and cannot effectively steel pile casting be extracted.
Summary of the invention
The present invention is directed to pile foundation steel pile casting construction traditional in prior art, steel pile casting cannot be carried out recycling or only reclaiming less than 10 meters steel pile casting, when building longer Pile Foundation Concrete, the shortcomings such as steel pile casting just cannot effectively reclaim, provide a kind of by steel pile casting is designed to segmentation structure, connection segment is passed through between each steel pile casting, adopt pressure pushing method simultaneously, even if when preparing the steel pile casting concrete foundation pile of more than 21 meters, still steel pile casting can be taken out reusable super long pile basis steel pile casting and can't harm recovery method.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Super long pile basis steel pile casting can't harm recovery method, comprises the following steps:
A, placement operations platform, bury outer casing underground;
Interior casing is buried underground in b, outside casing;
C, the drill bit of auger loaded in casing, and in interior casing internal drilling;
D, holed after, carry out building concrete;
E, build end after, before concrete initial set, extract interior casing;
F, concrete pipe base to be detected, detect qualified after extract outer casing;
Treat that next time uses after the trimming of g, outer casing, interior casing.
As preferably, in step e: after treating that Pile Foundation Concrete is built, before concrete initial set, with loop wheel machine, interior casing is extracted.
As preferably, in step e: after treating that Pile Foundation Concrete is built, before concrete initial set, interior casing is extracted by use loop wheel machine.Vibrating hammer clamps with outer casing in piling process, is squeezed into by outer casing by constantly vibrating.
As preferably, in step f: treat that pile foundation after the assay was approved, pressure lift-up device is adopted to be extracted by outer casing, pressure lift-up device comprises forcing press and end socket, be connected by pipeline between forcing press with end socket, end socket and outer casing upper end are sealedly and fixedly connected, pressurize by injecting liquids and gases in the outside casing of forcing press, utilize the reaction force of liquids and gases pressure by end socket and the continuous upwards jack-up of outer casing, loop wheel machine is fixedly connected with end socket, and loop wheel machine is sling end socket being extracted together by outer casing.The advantage of liquid pressing be stablize, safety, but it is slow to eject speed; And the shortcoming of gas pressurized stablizes not, conference of pressurizeing causes outer casing to burst.Adopt and inject liquids and gases simultaneously and pressurize, had both advantages concurrently, there is the speed of ejecting fast, simultaneously stability and safety more.
As preferably, outer casing is by outer connection casing, and the outer casing unit composition of more than two sections, and outer connection casing lower end is connected with outer casing unit, and the two ends of outer casing unit arrange adpting flange, and adpting flange arranges bolt connecting hole.The length of every section of outer casing unit is 10-15 rice.
As preferably, adpting flange is arranged groove or fin, between adjacent adpting flange, one arranges groove, and another arranges fin, is connected between two adjacent adpting flanges by groove or fin.Single outer casing unit or interior casing unit arrange a flange up and down respectively, and one of them flange arranges groove, and another flange is provided with fin, therefore can be connected by groove or fin between two outer casing unit or interior casing unit.
As preferably, in the groove of adpting flange, compressive sealed bonding material is set, compressive sealed bonding material is one or more the mixture in the pitch of silica gel, rubber, hot melt, or the pitch of hot melt and the mixture of rubber powder, or the pitch of hot melt and the mixture of wood chip.The pitch of silica gel, rubber, hot melt is as the cementing agent between outer casing unit, playing the effect connecting and seal simultaneously, by adding rubber powder or wood chip in above-mentioned hot melt liquid, the mobility of hot melt liquid can be reduced, improve adhesion strength, effectively strengthen the pressure of sealing system.
As preferably, when more than 1 meter, outer connection casing bottom distance operating platform plane, outer connection casing is separated with outer casing unit disassembling, by loop wheel machine, end socket is moved to above outer casing unit, end socket and outer casing unit are tightly connected, pressurize by injecting liquids and gases in the outside casing of forcing press, utilize the reaction force of liquids and gases pressure by end socket and the continuous upwards jack-up of outer casing, when the outer casing unit be connected with end socket rises to operating platform, outer to outer casing unit and lower joint casing unit is separated, after end socket and connected outer casing unit are hung, by connected for end socket outer casing unit partition, end socket is connected with the outer casing unit of lower joint, so the outer casing unit of remainder is constantly reclaimed.The upper end of outer connection casing is straight tube, do not arrange flange, end socket is sealed by hydraulic clamp with the outer upper end being connected casing, and whole process is fixedly connected with the outer casing that is connected due to end socket always, without the need to dismounting, only need outer connection casing constantly to carry out disassembly and assembly with outer casing unit.Outer connection casing is separated with outer casing unit disassembling also directly to split into after casing installation outside and is separated.
As preferably, the length of outer casing unit is more than 21 meters, and the length of interior casing unit is more than 21 meters.Outer casing unit is by Flange joint, and interior casing unit is by being welded to connect.
As preferably, interior casing outer wall arranges interior casing positioner, and interior casing positioner is arc spacer, and arc spacer is welded on interior casing outer wall, and arc spacer is along interior casing axial distribution.
The present invention is owing to have employed above technical scheme; there is significant technique effect: the present invention is by being designed to segmentation structure by steel pile casting; adopt pressure pushing method simultaneously; even if when preparing the steel pile casting concrete foundation pile of 11 meters, more than 30 meters; still steel pile casting can be taken out and reuse; reduce the construction cost of engineering, saved the energy, protected environment.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of super long pile of the present invention basis steel pile casting.
Fig. 2 is the connection diagram of end socket and outer casing in embodiment 1.
Fig. 3 is the schematic diagram on embodiment 1 China and foreign countries casing when pulling out.
Fig. 4 is connection diagram between outer connection casing and outer casing unit.
Fig. 5 is outer casing unit top view.
Fig. 6 is by adpting flange connection diagram between outer casing unit.
Fig. 7 is the top view of interior casing when being socketed in outer casing.
Fig. 8 is interior casing positioner is arc.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-outer casing, 2-interior casing, 3-loop wheel machine, 4-operating platform, 5-greatly, 6-pressure lift-up device, 7-, 8-interior casing positioner, 11-outer casing unit, 12-adpting flange, 13-bolt connecting hole, 14-fin, 15-connect casing, 61-forcing press, 62-end socket outward.
Detailed description of the invention
Below in conjunction with accompanying drawing 1,2,4,5,6,7,8 and embodiment, the present invention is described in further detail:
Embodiment 1
Super long pile basis steel pile casting can't harm recovery method, comprises the following steps:
A, placement operations platform 4, bury outer casing 1 underground;
Interior casing 2 is buried underground in b, outside casing 1;
C, the drill bit of auger loaded in casing 2, and in the internal drilling of interior casing 2;
D, holed after, carry out building concrete;
E, build end after, before concrete initial set, extract interior casing 2;
F, concrete pipe base to be detected, detect qualified after extract outer casing 1;
Treat that next time uses after the trimming of g, outer casing 1, interior casing 2.
In step a, when burying outer casing underground, vibrating hammer connects with the outer casing 15 that is connected on outer casing 1, and vibrating hammer is fixed by the outer casing of clamping, and during piling, the outer casing of vibrating hammer vibration, while squeeze into outer casing 2.When casing 1 is extracted outside, directly outer connection casing 15 is dismantled, the end socket 62 of outer casing unit 11 directly and on pressure lift-up device 6 is tightly connected, when end socket 62 and saves after outer casing unit 11 rises to operating platform, outer for this joint casing unit 11 is separated with the outer casing unit of lower joint, after end socket 62 and this outer casing unit 11 hang and move to correct position, end socket 62 and this outer casing unit 11 are separated, end socket 62 continues casing unit outer with lower joint again and is connected, circulation like this, realizes all outer casing unit and reclaims.
In step e: after treating that Pile Foundation Concrete is built, before concrete initial set, with loop wheel machine 3, interior casing 2 is extracted.
In step f: treat that pile foundation after the assay was approved, pressure lift-up device 6 is adopted to be extracted by outer casing 1, pressure lift-up device 6 comprises forcing press 61 and end socket 62, be connected by pipeline between forcing press 61 with end socket 62, end socket 62 and outer casing 1 upper end are sealedly and fixedly connected, pressurize by injecting liquids and gases in forcing press 61 outwards casing 1, utilize the reaction force of liquids and gases pressure by end socket 62 and the continuous upwards jack-up of outer casing 1, loop wheel machine 3 is fixedly connected with end socket 62, and loop wheel machine 3 is sling end socket 62 being extracted together by outer casing 1.Interior casing 2 is made up of, by being welded to connect between interior casing unit casing unit in more than a group.
Outer casing 1 is by outer connection casing 15, and the outer casing unit 11 of more than two sections forms, and outer connection casing 15 lower end is connected with outer casing unit 11, and the two ends of outer casing unit 11 arrange adpting flange 12, adpting flange 12 are arranged bolt connecting hole 13.The length of every section of outer casing unit 11 is 11 meters.
Adpting flange 12 is arranged groove 14 or fin 16, between adjacent adpting flange 12, one arranges groove 14, and another arranges fin 16, is connected between two adjacent adpting flanges 12 by groove 14 or fin 16.
In the groove 14 of adpting flange 12, compressive sealed bonding material is set, compressive sealed bonding material is one or more the mixture in the pitch of silica gel, rubber, hot melt, or the pitch of hot melt and the mixture of rubber powder, or the pitch of hot melt and the mixture of wood chip.
When more than 1 meter, outer connection casing 15 bottom distance operating platform 4 plane, to dismantle with outer casing unit 11 with outer connection casing 15 and be separated, by loop wheel machine 3, end socket 62 is moved to above outer casing unit 11, end socket 62 and outer casing unit 11 are tightly connected, pressurize by injecting liquids and gases in forcing press 61 outwards casing 1, utilize the reaction force of liquids and gases pressure by end socket 62 and the continuous upwards jack-up of outer casing 1, when the outer casing unit 11 be connected with end socket 62 rises to operating platform, outer to outer casing unit 11 and lower joint casing unit is separated, after end socket 62 and connected outer casing unit 11 are hung, connected for end socket 62 outer casing unit 11 is broken, end socket 62 is connected with the outer casing unit of lower joint, so the outer casing unit of remainder is constantly reclaimed.The upper end of outer connection casing 15 is straight tube, flange is not set, end socket 62 is sealed by hydraulic clamp with the outer upper end being connected casing 15, whole process is fixedly connected with the outer casing 15 that is connected due to end socket 62 always, without the need to dismounting, only need outer connection casing 15 constantly to carry out disassembly and assembly with outer casing unit 11.
The total length of outer casing 1 is more than 21 meters, and the total length of interior casing 2 is more than 21 meters.Interior casing positioner 8 is arc spacer, and arc spacer is along outer casing 1 radial distribution, and arc spacer is fixedly welded on outer casing 1 inwall.As shown in Figure 7,8, interior casing 2 outer wall arranges interior casing positioner 8, and interior casing positioner 8 is arc spacer, and arc spacer is welded on interior casing 2 outer wall, and arc spacer is along interior casing 2 axial distribution.
Embodiment 2
The difference of the present embodiment and embodiment 1 is: outer casing 1 is made up of the outer casing unit 11 of more than two sections, outer connection casing 15 upper end is fixedly connected with end socket 62, outer connection casing 15 lower end is connected with outer casing unit 11, the two ends of outer casing unit 11 arrange adpting flange 12, adpting flange 12 are arranged bolt connecting hole 13.The length of every section of outer casing unit 11 is 12 meters.Arrange compressive sealed bonding material in the groove 14 of adpting flange 12, compressive sealed bonding material is the pitch of hot melt and the mixture of rubber powder.Add rubber powder in pitch after hot melt, pitch mobility can be reduced, improve fin 16 and the bond strength of groove 14, ensure sealing effectiveness.
Embodiment 3
The present embodiment is with the difference of embodiment 1: outer casing 1 is connected casing 15 by outer, and more than two sections outer casing unit 11 forms, outer connection casing 15 upper end is fixedly connected with end socket 62, outer connection casing 15 lower end is connected with outer casing unit 11, the two ends of outer casing unit 11 arrange adpting flange 12, adpting flange 12 are arranged bolt connecting hole 13.The length of every section of outer casing unit 11 is 13 meters.
Arrange compressive sealed bonding material in the groove 14 of adpting flange 12, compressive sealed bonding material is the mixture of hot-melt asphalt and wood chip.Sealing between adjacent outer casing unit 11 can be improved by arranging hot-melt asphalt, meanwhile, in the pitch after hot melt, adding wood chip, pitch mobility can be reduced, improve the bond strength of fin 16 and groove 14.
Embodiment 4
The present embodiment is with the difference of embodiment 1: outer casing 1 is connected casing 15 by outer, and more than two sections outer casing unit 11 forms, outer connection casing 15 upper end is fixedly connected with end socket 62, outer connection casing 15 lower end is connected with outer casing unit 11, the two ends of outer casing unit 11 arrange adpting flange 12, adpting flange 12 are arranged bolt connecting hole 13.The length of every section of outer casing unit 11 is 14 meters.Arrange compressive sealed bonding material in the groove 14 of adpting flange 12, compressive sealed bonding material is silica gel or rubber.
Embodiment 5
The present embodiment is with the difference of embodiment 1: outer casing 1 is connected casing 15 by outer, and more than two sections outer casing unit 11 forms, outer connection casing 15 upper end is fixedly connected with end socket 62, outer connection casing 15 lower end is connected with outer casing unit 11, the two ends of outer casing unit 11 arrange adpting flange 12, adpting flange 12 are arranged bolt connecting hole 13.The length of every section of outer casing unit 11 is 14.6 meters.Arrange compressive sealed bonding material in the groove 14 of adpting flange 12, compressive sealed bonding material is the pitch of hot melt.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (9)

1. super long pile basis steel pile casting can't harm recovery method, it is characterized in that, comprises the following steps:
A, placement operations platform (4), bury outer casing (1) underground;
Interior casing (2) is buried underground in b, outside casing (1);
C, the drill bit of auger loaded in casing (2), and in interior casing (2) internal drilling;
D, holed after, carry out building concrete;
E, build end after, before concrete initial set, extract interior casing (2);
F, concrete pipe base to be detected, detect qualified after extract outer casing (1);
Treat that next time uses after the trimming of g, outer casing (1), interior casing (2).
2. super long pile basis according to claim 1 steel pile casting can't harm recovery method, it is characterized in that: in step e: after treating that Pile Foundation Concrete is built, before concrete initial set, is extracted by interior casing (2) with loop wheel machine (3).
3. super long pile basis according to claim 1 steel pile casting can't harm recovery method, it is characterized in that: in step f: treat that pile foundation after the assay was approved, pressure lift-up device (6) is adopted to be extracted by outer casing (1), pressure lift-up device (6) comprises forcing press (61) and end socket (62), be connected by pipeline between forcing press (61) with end socket (62), end socket (62) and outer casing (1) upper end are sealedly and fixedly connected, pressurize by injecting liquids and gases in forcing press (61) outwards casing (1), utilize the reaction force of liquids and gases pressure by end socket (62) and the continuous upwards jack-up of outer casing (1), loop wheel machine (3) is fixedly connected with end socket (62), loop wheel machine (3) is sling end socket (62) being extracted together by outer casing (1).
4. super long pile basis according to claim 3 steel pile casting can't harm recovery method, it is characterized in that: outer casing (1) is by outer connection casing (15), and more than two sections outer casing unit (11) compositions, outer connection casing (15) lower end is connected with outer casing unit (11), the two ends of outer casing unit (11) arrange adpting flange (12), adpting flange (12) are arranged bolt connecting hole (13).
5. super long pile basis according to claim 4 steel pile casting can't harm recovery method, it is characterized in that: adpting flange (12) is arranged groove (14) or fin (16), between adjacent adpting flange (12), one arranges groove (14), another arranges fin (16), is connected between two adjacent adpting flanges (12) by groove (14) or fin (16).
6. super long pile basis according to claim 5 steel pile casting can't harm recovery method, it is characterized in that: in the groove (14) of adpting flange (12), compressive sealed bonding material is set, compressive sealed bonding material is one or more the mixture in the pitch of silica gel, rubber, hot melt, or the pitch of hot melt and the mixture of rubber powder, or the pitch of hot melt and the mixture of wood chip.
7. super long pile basis according to claim 4 steel pile casting can't harm recovery method, it is characterized in that: when outer connection casing (15) bottom distance more than 1 meter, operating platform (4) plane, outer connection casing (15) is dismantled with outer casing unit (11) and is separated, by loop wheel machine (3), end socket (62) is moved to outer casing unit (11) top, end socket (62) and outer casing unit (11) are tightly connected, pressurize by injecting liquids and gases in forcing press (61) outwards casing (1), utilize the reaction force of liquids and gases pressure by end socket (62) and the continuous upwards jack-up of outer casing (1), when the outer casing unit (11) be connected with end socket (62) rises to operating platform, outer to outer casing unit (11) and lower joint casing unit is separated, after end socket (62) and connected outer casing unit (11) are hung, by connected for end socket (62) outer casing unit (11) partition, end socket (62) is connected with the outer casing unit of lower joint, so the outer casing unit of remainder is constantly reclaimed.
8. super long pile basis according to claim 1 steel pile casting can't harm recovery method, and it is characterized in that: the length of outer casing unit (11) is more than 21 meters, the length of interior casing unit is more than 21 meters.
9. super long pile basis according to claim 1 steel pile casting can't harm recovery method, it is characterized in that: interior casing (2) outer wall arranges interior casing positioner (8), interior casing positioner (8) is arc spacer, and arc spacer is welded on interior casing (2) outer wall.
CN201410416202.4A 2014-08-22 2014-08-22 Ultra-long pile foundation steel protection tube nondestructive recovery method Active CN104213555B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703027A (en) * 2015-11-12 2017-05-24 中国电力科学研究院 Combined pile casing for power transmission tower foundation
CN110080225A (en) * 2019-03-29 2019-08-02 徐胜祥 Recovery method for overlength super large steel pile casting
CN111005374A (en) * 2019-11-27 2020-04-14 亨通海洋工程有限公司 Construction process for replacing slurry retaining wall
CN111021356A (en) * 2019-12-26 2020-04-17 上海隧道工程有限公司 Method and device for recovering steel casing of mudflat pile foundation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200988964Y (en) * 2006-12-27 2007-12-12 朱启贵 Steel protective tube for drilling pile
CN201144418Y (en) * 2007-07-18 2008-11-05 乔春明 Special guide sleeve for hydraulic pressure raising and lining
JP2010236323A (en) * 2009-03-31 2010-10-21 Mitani Sekisan Co Ltd Foundation pile structure for on-site formation, and construction method of foundation pile
CN201738315U (en) * 2010-07-29 2011-02-09 傅海洪 Inner container type steel pile casing
CN102966096A (en) * 2012-11-30 2013-03-13 天津第三市政公路工程有限公司 Construction method for double pile casings of large-diameter cast-in-situ bored pile
CN203174595U (en) * 2013-03-28 2013-09-04 顾亮 Recyclable steel casing
CN203741834U (en) * 2014-01-29 2014-07-30 陈东曙 Pile barrel structure with air bag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200988964Y (en) * 2006-12-27 2007-12-12 朱启贵 Steel protective tube for drilling pile
CN201144418Y (en) * 2007-07-18 2008-11-05 乔春明 Special guide sleeve for hydraulic pressure raising and lining
JP2010236323A (en) * 2009-03-31 2010-10-21 Mitani Sekisan Co Ltd Foundation pile structure for on-site formation, and construction method of foundation pile
CN201738315U (en) * 2010-07-29 2011-02-09 傅海洪 Inner container type steel pile casing
CN102966096A (en) * 2012-11-30 2013-03-13 天津第三市政公路工程有限公司 Construction method for double pile casings of large-diameter cast-in-situ bored pile
CN203174595U (en) * 2013-03-28 2013-09-04 顾亮 Recyclable steel casing
CN203741834U (en) * 2014-01-29 2014-07-30 陈东曙 Pile barrel structure with air bag

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703027A (en) * 2015-11-12 2017-05-24 中国电力科学研究院 Combined pile casing for power transmission tower foundation
CN110080225A (en) * 2019-03-29 2019-08-02 徐胜祥 Recovery method for overlength super large steel pile casting
CN111005374A (en) * 2019-11-27 2020-04-14 亨通海洋工程有限公司 Construction process for replacing slurry retaining wall
CN111021356A (en) * 2019-12-26 2020-04-17 上海隧道工程有限公司 Method and device for recovering steel casing of mudflat pile foundation

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Inventor after: Mao Yihua

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Inventor after: Sun Yeping

Inventor after: Chen Dinghai

Inventor after: Bian Hangfeng

Inventor after: Liu Bin

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Inventor after: Zhao Zhenyu

Inventor after: Luo Pengcheng

Inventor after: Liang Binbin

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Inventor after: Wei Chaohui

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Inventor before: Xu Shengxiang

Inventor before: Kong Qinglin

Inventor before: Shao Yanhua

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