CN101838988A - Comprehensive construction method for extracting anchor cable - Google Patents
Comprehensive construction method for extracting anchor cable Download PDFInfo
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- CN101838988A CN101838988A CN 201010166227 CN201010166227A CN101838988A CN 101838988 A CN101838988 A CN 101838988A CN 201010166227 CN201010166227 CN 201010166227 CN 201010166227 A CN201010166227 A CN 201010166227A CN 101838988 A CN101838988 A CN 101838988A
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- anchor cable
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- suspension ring
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Abstract
The invention relates to a construction method of urban construction, in particular to a comprehensive construction method for removing a prestressed anchor cable which is buried underground. In the invention, the comprehensive construction method comprises the following construction steps of: positioning the position of a stayed anchor cable according to the construction extracting of deep foundation pit engineering, drilling by using a complete set of pipe drilling machine, putting a steel sleeve to the position of the anchor cable, cutting off the anchor cable by using cutting tools, such as a cutting machine and the like, fixing an arc slideway at the edge of the lower end of the sleeve, positioning the anchor cable, connecting the anchor cable and a steel rope with a lifting ring by using a fixture, lifting the lifting ring step by step by a lifting cylinder of the drilling machine, filling concrete or other fillers after pulling out the anchor cable, and then pulling out the sleeve. The method has simple and easy operation, small damage to the ground and high construction efficiency and does not have adverse effect to peripheral buildings.
Description
Technical field
The present invention relates to a kind of job practices of urban construction, particularly a kind of removing is buried in the comprehensive construction method of underground prestress anchorage cable.
Background technology
Continuous development along with China's urban construction, deep-foundation pit engineering is on the increase, prestress anchorage cable is used very extensive in the underground pattern foundation pit supporting structure of China, compare with other support technology, anchor cable has cheap, construction is simple ripe, speed is fast, safe and reliable, do not take advantage such as main body construction work plane, is one of major technique of the present pattern foundation pit supporting structure of China.But as a kind of temporary supporting measure, anchor cable can't reclaim after the supporting disabler, forever bury in underground and can't take out with the structure of being built, form underground rubbish, cause underground environmental pollution, to pile foundation construction, the excavation of foundation pit in adjacent plot, the long-term plan in municipal construction on every side, subway work, city and sustainable development etc. cause and have a strong impact on.
Shield machine is used in the city underground construction at present usually, shield construction efficient is higher, daily traffic impact to ground is less, and also seldom influence sanitation of environment, but the cutter of shield machine runs into when tiltedly drawing anchor cable, not only can not cut off anchor cable, on the contrary also can snarl and be damaged, change cutter and not only bother but also can influence construction speed, increase construction cost greatly.
In order to address the above problem, the scheme of recoverable prestress anchorage cable technology has been proposed in some technical papers of China and the patent documentation, because this class technology also is in the exploration, also have many problems to wait to solve, therefore be not widely used in the actual engineering, the deep-foundation pit engineering kind of China is still used in a large number and is tiltedly drawn anchor cable at present.
Technical scheme
Technical problem to be solved by this invention provides a kind of comprehensive construction method of extracting anchor cable, and operation is simple for it, and is little to the ground breakage, and the efficiency of construction height has no adverse effect to the surrounding buildings thing.
Realize that the technical scheme that the object of the invention adopted is: according to the working drawing of deep-foundation pit engineering, the position that anchor cable is tiltedly drawn in the location, hole with all casing drill, insert steel sleeve to the anchor cable position, cut off anchor cable, at the fixing cambered surface slideway and locate anchor cable of sleeve pipe lower edge with cutting tools such as cutting machines, with jig the steel cable of anchor cable with the band suspension ring is connected, the rig lift cylinder promotes step by step to suspension ring, extracts perfusion concrete or other filler behind the anchor cable, extracts sleeve pipe again.
Before described all casing drill boring, should make the concrete walling crib and do ground differential hardening processing at bore position.It is that a gooseneck is penetrated in the suspension ring that suspension ring are promoted step by step, the two ends of gooseneck are placed on the push rod top of a pair of lift cylinder of rig, start lift cylinder rising one stroke synchronously, fall lift cylinder again, gooseneck is penetrated in the suspension ring of following correspondence position, repeating last action.
The invention has the beneficial effects as follows: can the large tracts of land excavation not be made on the ground of burying anchor cable, therefore little to the ground breakage, efficiency of construction is higher; Adopt the mode of lift cylinder, also collar aperture is in time filled concrete or other filler simultaneously the anchor cable withdrawing, therefore simple to operate and very little to the soil layer construction damage, can not cause the sedimentation of ground on every side or building, so method of the present invention is safer.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is an extracting anchor cable view of the present invention;
Fig. 3 is a view of the present invention to be constructed.
Among the figure: crane 1, suspension hook 2, gooseneck 3, steel cable 4, suspension ring 5, lift cylinder 6, sleeve pipe 7, jig 8, anchor cable 9, cambered surface slideway 10.
The specific embodiment
Referring to each figure, processing step of the present invention is as follows:
(1) location makes the concrete walling crib and does the differential hardening processing of bore position ground;
(2) all casing drill and in place is installed;
(3) sleeve pipe, dash to grab or to revolve and take soil;
(4) sleeve pipe 7 fetches earth to the first road anchor cable 9 and ends.
(5) behind the artificial clear hole, cut off anchor cable 9 with hydraulic tongs or other instrument;
(6) artificial install extraordinary cambered surface slideway 10, with jig 8 with steel cable 4 with treat 9 pinnings of withdrawing section anchor cable;
(7) install and pull out support, gooseneck 3 is inserted in the suspension ring 5, gooseneck 3 two ends cross-arms are at the push rod top of lift cylinder 6, pull out first stroke on the lift cylinder 6 that starts rig begins;
(8) shrink lift cylinder 6, adjust gooseneck 3 and suspension ring 5 and pull out in (repeatedly) lifting once more, till loosening anchor cable 9 withdrawings;
(9) crane of providing for oneself with all casing drill again 1 hangs out sleeve pipe 7 upper port outer (the first road anchor cable withdrawing is finished) to anchor cable 9;
(10) unload all suspenders such as gooseneck 3, suspension ring 5;
(11) installation splicing sleeve 7 continues immersed tube and fetches earth to the second road anchor cable 9.
(12) adopt the operation of the withdrawing first road anchor cable 9 to extract anchor cable.
(13) third and fourth ... road anchor cable withdrawing operation is the same.
(14) the no anchor cable in the depth bounds of confirming to remove obstacles.
(15) inner catheter perfusion concrete or other filler are installed.
(16) extract outer tube one by one, the rig displacement finishes.
Claims (3)
1. the comprehensive construction method of an extracting anchor cable, it is characterized in that: according to the working drawing of deep-foundation pit engineering, steel sleeve with all casing drill boring, is inserted to the anchor cable position in the position that anchor cable is tiltedly drawn in the location, cut off anchor cable with cutting tool, at the fixing cambered surface slideway and locate anchor cable of sleeve pipe lower edge, with jig the steel cable of anchor cable with the band suspension ring is connected, the rig lift cylinder promotes step by step to suspension ring, pour into concrete or other filler after extracting anchor cable, extract sleeve pipe again.
2. by the comprehensive construction method of the described extracting anchor cable of claim 1, it is characterized in that: before all casing drill boring, should make the concrete walling crib and do ground differential hardening processing at bore position.
3. press the comprehensive construction method of the described extracting anchor cable of claim 1, it is characterized in that: it is that a gooseneck is penetrated in the suspension ring that suspension ring are promoted step by step, the two ends of gooseneck are placed on the push rod top of a pair of lift cylinder of rig, start lift cylinder rising one stroke synchronously, fall lift cylinder again, gooseneck is penetrated in the suspension ring of following correspondence position, repeating last action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101662275A CN101838988B (en) | 2010-05-10 | 2010-05-10 | Comprehensive construction method for extracting anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101662275A CN101838988B (en) | 2010-05-10 | 2010-05-10 | Comprehensive construction method for extracting anchor cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101838988A true CN101838988A (en) | 2010-09-22 |
| CN101838988B CN101838988B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101662275A Active CN101838988B (en) | 2010-05-10 | 2010-05-10 | Comprehensive construction method for extracting anchor cable |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733390A (en) * | 2012-06-14 | 2012-10-17 | 广东水电二局股份有限公司 | Method for removing underground waste anchor cable/anchor rod |
| CN103510518A (en) * | 2012-06-27 | 2014-01-15 | 北京中岩大地工程技术有限公司 | Pile hole obstacle breaking device |
| CN106049495A (en) * | 2016-06-08 | 2016-10-26 | 山东大学 | Special device used for underground engineering anchor cable cutting and construction method of special device |
| CN106245645A (en) * | 2016-09-18 | 2016-12-21 | 上海胜义环境科技有限公司 | A kind of recyclable from anchoring anchor rope component and construction method |
| CN106437798A (en) * | 2016-09-23 | 2017-02-22 | 广东省基础工程集团有限公司 | Pretreatment method for anchor cable group penetrating through shield driving fracture surface |
| CN108222012A (en) * | 2017-12-18 | 2018-06-29 | 中冶天工集团有限公司 | A kind of foundation pit anchor cable excision and the construction method that supporting pile is carried out using anchor cable excision system |
| CN113510298A (en) * | 2021-04-22 | 2021-10-19 | 郑州地铁集团有限公司 | Method for cutting off and pulling out anchor cable and anchor rod close to foundation pit |
| WO2022021634A1 (en) * | 2020-07-30 | 2022-02-03 | 深圳市工勘岩土集团有限公司 | Method for removing semi-invasive pre-stressed anchor cable in supporting pile by rotary drilling rig |
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| EP0020820A1 (en) * | 1979-06-29 | 1981-01-07 | Ballast-Nedam Groep N.V. | Anchor pile hoisting device |
| JPH11217831A (en) * | 1998-02-03 | 1999-08-10 | Sato Kiso Koji Kk | Ground cutting device of steel material |
| CN1268603A (en) * | 1999-03-25 | 2000-10-04 | 蒙理明 | Recoverable prestressed reinforced concrete revetment pile work method |
| CN101509231A (en) * | 2009-03-26 | 2009-08-19 | 周孝余 | Construction method for quickly assembling and disassembling guy cable of stayed-cable bridge |
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2010
- 2010-05-10 CN CN2010101662275A patent/CN101838988B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| EP0020820A1 (en) * | 1979-06-29 | 1981-01-07 | Ballast-Nedam Groep N.V. | Anchor pile hoisting device |
| JPH11217831A (en) * | 1998-02-03 | 1999-08-10 | Sato Kiso Koji Kk | Ground cutting device of steel material |
| CN1268603A (en) * | 1999-03-25 | 2000-10-04 | 蒙理明 | Recoverable prestressed reinforced concrete revetment pile work method |
| CN101509231A (en) * | 2009-03-26 | 2009-08-19 | 周孝余 | Construction method for quickly assembling and disassembling guy cable of stayed-cable bridge |
Non-Patent Citations (2)
| Title |
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| 《岩土力学》 20051130 赵海生 基坑支护可拆型锚杆技术研究及应用 第26卷, 第11期 * |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733390A (en) * | 2012-06-14 | 2012-10-17 | 广东水电二局股份有限公司 | Method for removing underground waste anchor cable/anchor rod |
| CN102733390B (en) * | 2012-06-14 | 2014-12-24 | 广东水电二局股份有限公司 | Method for removing underground waste anchor cable/anchor rod |
| CN103510518A (en) * | 2012-06-27 | 2014-01-15 | 北京中岩大地工程技术有限公司 | Pile hole obstacle breaking device |
| CN103510518B (en) * | 2012-06-27 | 2015-08-19 | 北京中岩大地工程技术有限公司 | Stake holes obstruction abolishes device |
| CN106049495B (en) * | 2016-06-08 | 2019-05-31 | 山东大学 | A kind of special equipment and its construction method for the cutting of underground engineering anchor cable |
| CN106049495A (en) * | 2016-06-08 | 2016-10-26 | 山东大学 | Special device used for underground engineering anchor cable cutting and construction method of special device |
| CN106245645A (en) * | 2016-09-18 | 2016-12-21 | 上海胜义环境科技有限公司 | A kind of recyclable from anchoring anchor rope component and construction method |
| CN106245645B (en) * | 2016-09-18 | 2018-06-05 | 上海胜义环境科技有限公司 | It is a kind of recyclable from anchoring anchor rope component and construction method |
| CN106437798A (en) * | 2016-09-23 | 2017-02-22 | 广东省基础工程集团有限公司 | Pretreatment method for anchor cable group penetrating through shield driving fracture surface |
| CN108222012A (en) * | 2017-12-18 | 2018-06-29 | 中冶天工集团有限公司 | A kind of foundation pit anchor cable excision and the construction method that supporting pile is carried out using anchor cable excision system |
| WO2022021634A1 (en) * | 2020-07-30 | 2022-02-03 | 深圳市工勘岩土集团有限公司 | Method for removing semi-invasive pre-stressed anchor cable in supporting pile by rotary drilling rig |
| CN113510298A (en) * | 2021-04-22 | 2021-10-19 | 郑州地铁集团有限公司 | Method for cutting off and pulling out anchor cable and anchor rod close to foundation pit |
| CN113510298B (en) * | 2021-04-22 | 2022-06-14 | 郑州地铁集团有限公司 | Cutting and pulling mechanical head and method for cutting off and pulling anchor cable and anchor rod close to foundation pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101838988B (en) | 2012-07-11 |
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