CN103924584B - The construction method of bored pile - Google Patents
The construction method of bored pile Download PDFInfo
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- CN103924584B CN103924584B CN201410093645.4A CN201410093645A CN103924584B CN 103924584 B CN103924584 B CN 103924584B CN 201410093645 A CN201410093645 A CN 201410093645A CN 103924584 B CN103924584 B CN 103924584B
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- vertical duct
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Abstract
The invention discloses a kind of construction method of bored pile, comprise the following steps: A, boring settle reinforcing cage, on reinforcing cage, vertical duct and the transverse circular pipe with vertical duct conducting are fixed in colligation, the sprue gate of described vertical duct and the exit of playpipe adopt blocking to close, and blocking adopts the material being dissolvable in water water; B, to fluid concrete in stake holes; C, employing super-pressure water filling device are to vertical duct water filling, and time the blocking in pipe exit to be sprayed dissolves, High-Pressure Water outwards sprays and washes the outer concrete solidified not yet completely open, and then goes out pit on stake holes sidewall; D, adopt high-pressure slip-casting device to inject cement mortar after 28 days again, multiple vertical duct finally can be adopted simultaneously to inject cement mortar, the cement mortar of injection fills the region the pit be deep on stake holes sidewall washed open by water under high pressure; E, cement mortar to be implanted solidify rear sealing of hole.The construction method of this bored pile can strengthen the frictional resistance between pile body and stake holes inwall.
Description
Technical field
The present invention relates to a kind of construction method of bored pile.
Background technology
The construction of conventional borehole castinplace pile comprises: 1, bore stake holes, 2, lifting reinforcing cage, 3, fluid concrete.But the earth contact surface on the concrete side walls of the bored pile that the cast of this method is formed and stake holes inwall vertically distributes, and therefore its frictional resistance is less, is unfavorable for the carrying of pile body, easily causes building posterior settlement.
Summary of the invention
In view of the deficiency of background technology, technical problem to be solved by this invention is to provide the construction method that a kind of structure can strengthen the bored pile of the frictional resistance between pile body and stake holes inwall.
For this reason, the construction method of bored pile provided by the invention, comprise the following steps: A, hole and settle reinforcing cage, on reinforcing cage, vertical duct and the transverse circular pipe with vertical duct conducting are fixed in colligation, vertical duct has two at least and all with the sprue gate of upper end open and lower end, described transverse circular pipe arranges along the vertical interval of reinforcing cage and is distributed in the length range of whole stake holes, transverse circular pipe racks has the playpipe of multiple lateral openings, playpipe and the conducting of transverse circular pipe, the sprue gate of described vertical duct and the exit of playpipe adopt blocking to close, blocking is made through the soluble material of certain hour after adopting and meeting water, B, to fluid concrete in stake holes, a 24 hours vertical duct water filling wherein after C, fluid concrete, after air emptying, close other vertical ducts, and adopt super-pressure water filling device to vertical duct water filling, time the blocking in pipe exit to be sprayed dissolves, High-Pressure Water outwards sprays and washes the outer coagulation solidified not yet completely open, and then goes out pit on stake holes sidewall, D, one of them vertical duct water filling backward in 28 days, after air emptying, adopt high-pressure slip-casting device to inject cement mortar again, multiple vertical duct finally can be adopted simultaneously to inject cement mortar, the cement mortar of injection fills the region the pit be deep on stake holes sidewall washed open by water under high pressure, E, cement mortar to be implanted solidify rear sealing of hole.
In the present invention, 24 hours after pouring concrete stake holes, concrete solidifies not yet completely, when now injecting water under high pressure, there are current and can't go out completely due to blocking, treat that blocking dissolves in a flash, gather the water flow jet of high pressure on the concrete of side, concrete can be washed open and brush out pit in stake holes sidewall upper punch, thus at the concrete of bored pile after 28 days solidify completely, can casting cement mortar again, this priming charge cement mortar can in side layer of concrete and the pit going deep into stake holes side earth shape all-in-one-piece cement mortar coagulation band, make the intensive side embedded structure that pile body and stake holes sidewall are formed, greatly can strengthen the frictional resistance of bored pile, and then promote its bearing capacity, prevent building posterior settlement.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of bored pile provided by the invention.
Fig. 2 is the structure enlarged diagram of the round tube in Fig. 1.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, the construction method of bored pile provided by the invention, comprise the following steps: A, hole and settle reinforcing cage 1, on reinforcing cage 1, vertical duct 2 and the transverse circular pipe 3 with vertical duct 2 conducting are fixed in colligation, vertical duct 2 has two at least and all with the sprue gate 5 of upper end open 4 and lower end, in the present embodiment, vertical duct 2 only has two, described transverse circular pipe 3 arranges along the vertical interval of reinforcing cage 1 and is distributed in the length range of whole stake holes, transverse circular pipe 3 is with the playpipe 6 of multiple lateral openings, playpipe 6 and transverse circular pipe 3 conducting, the sprue gate 5 of described vertical duct 2 and the exit of playpipe 6 adopt blocking 7 to close, blocking 7 is made through the soluble material of certain hour after adopting and meeting water, B, to fluid concrete in stake holes, a 24 hours vertical duct 2 water filling wherein after C, fluid concrete, after air emptying, close other vertical ducts 2, and adopt super-pressure water filling device to vertical duct 2 water filling, super-pressure water filling device is actual is a high-pressure hydraulic pump, time the blocking 7 in pipe 6 exit to be sprayed dissolves, High-Pressure Water outwards sprays and washes the outer concrete solidified not yet completely open, and then goes out pit 8 on stake holes sidewall, D, one of them vertical duct 2 water filling backward in 28 days, after air emptying, high-pressure slip-casting device is adopted to inject cement mortar again, high-pressure slip-casting device is a high pressure slurry pump, multiple vertical duct 2 finally can be adopted to inject cement mortar, and the cement mortar of injection fills the region the pit 8 be deep on stake holes sidewall washed open by water under high pressure simultaneously, E, cement mortar to be implanted solidify rear sealing of hole.
In the above-described embodiments, described blocking 7 adopts starch to make, the thickness of blocking 7 reduces from bottom to top gradually, the starch material blocking 7 of different-thickness dissolves and to wash required basis of time thickness open different, the thickness that blocking of the present invention reduces from bottom to top is gradually arranged, the blocking of each height aspect can be made to be rushed to open in the roughly the same time, thus to avoid occurring that local blocking is rushed to open the situation that rear pressure cannot wash open not because of other blockings.
Claims (2)
1. the construction method of a bored pile, it is characterized in that: comprise the following steps: A, hole and settle reinforcing cage, on reinforcing cage, vertical duct and the transverse circular pipe with vertical duct conducting are fixed in colligation, vertical duct has two at least and all with the sprue gate of upper end open and lower end, described transverse circular pipe arranges along the vertical interval of reinforcing cage and is distributed in the length range of whole stake holes, transverse circular pipe racks has the playpipe of multiple lateral openings, playpipe and the conducting of transverse circular pipe, the sprue gate of described vertical duct and the exit of playpipe adopt blocking to close, blocking is made through the soluble material of certain hour after adopting and meeting water, B, to fluid concrete in stake holes, a vertical duct water filling wherein in 24 hours after C, fluid concrete, after air emptying, close other vertical ducts, and adopt super-pressure water filling device to vertical duct water filling, time the blocking in pipe exit to be sprayed dissolves, High-Pressure Water outwards sprays and washes the outer concrete solidified not yet completely open, and then goes out pit on stake holes sidewall, D, one of them vertical duct water filling backward in 28 days, after air emptying, adopt high-pressure slip-casting device to inject cement mortar again, multiple vertical duct finally can be adopted simultaneously to inject cement mortar, the cement mortar of injection fills the region the pit be deep on stake holes sidewall washed open by water under high pressure, E, cement mortar to be implanted solidify rear sealing of hole.
2. the construction method of bored pile according to claim 1, is characterized in that: described blocking adopts starch to make, and the thickness of blocking reduces from bottom to top gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093645.4A CN103924584B (en) | 2014-03-14 | 2014-03-14 | The construction method of bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093645.4A CN103924584B (en) | 2014-03-14 | 2014-03-14 | The construction method of bored pile |
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| Publication Number | Publication Date |
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| CN103924584A CN103924584A (en) | 2014-07-16 |
| CN103924584B true CN103924584B (en) | 2016-02-03 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727305B (en) * | 2015-01-27 | 2016-11-02 | 安徽同济建设集团有限责任公司 | Boring high-pressure slip-casting uplift pile construction method |
| CN106116349B8 (en) * | 2016-06-27 | 2020-06-30 | 辽阳鞍钢弓附建筑工程有限公司 | Concrete material capable of shortening final setting time and preparation method and application thereof |
| CN106930289B (en) * | 2017-03-10 | 2019-03-12 | 东南大学 | A kind of noiseless broken pile device and broken pile method |
| CN110005872B (en) * | 2019-04-23 | 2021-01-05 | 河海大学 | Transportation and grouting integrated pipeline and operation method thereof |
| CN111287176A (en) * | 2020-02-15 | 2020-06-16 | 广州市芳村建筑工程有限公司 | Construction method of building pile foundation |
| CN112832235A (en) * | 2021-01-08 | 2021-05-25 | 翟宇思 | Construction method and construction device for precast pile post-grouting |
| CN113356255A (en) * | 2021-06-25 | 2021-09-07 | 上海涵格建设工程有限公司 | Weak geological building foundation reinforcement construction method |
| CN114775576B (en) * | 2022-05-05 | 2024-02-23 | 交通运输部公路科学研究所 | Low-disturbance rotary spraying solidification method and device for frozen soil active layer of Qinghai-Tibet plateau |
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| CN201770981U (en) * | 2010-09-17 | 2011-03-23 | 广州市建筑科学研究院有限公司 | Tube-side injection grouting apparatus for simultaneous drilling pipe pile |
| CN103334428A (en) * | 2013-06-24 | 2013-10-02 | 河海大学 | Disc type cast-in-place concrete pile and construction process for same |
| CN103469792A (en) * | 2013-09-09 | 2013-12-25 | 广东省第二建筑工程公司 | Method for conducting grouting construction at back of pile bottom of cast-in-place pile |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH02296927A (en) * | 1989-05-11 | 1990-12-07 | Fujita Corp | Method for treating pile head of establishment pile |
| JP2005180168A (en) * | 2003-12-23 | 2005-07-07 | Ujisu:Kk | Replaceable columnar hardened formation device and formation method |
| CN201722685U (en) * | 2010-02-05 | 2011-01-26 | 中国建筑第四工程局有限公司 | No-adhesive prestress and pile side rear grouting punching pile structure |
| CN201770981U (en) * | 2010-09-17 | 2011-03-23 | 广州市建筑科学研究院有限公司 | Tube-side injection grouting apparatus for simultaneous drilling pipe pile |
| CN103334428A (en) * | 2013-06-24 | 2013-10-02 | 河海大学 | Disc type cast-in-place concrete pile and construction process for same |
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| CN103924584A (en) | 2014-07-16 |
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Address after: 325000 4 buildings of Lu Xiang business center, Shuang Yu Street, Wenzhou, Zhejiang. Patentee after: ZHEJIANG XINBANG CONSTRUCTION Co.,Ltd. Address before: 325000, Zhejiang Wenzhou shoes three phase Lucheng District Economic headquarters B06 building Patentee before: ZHEJIANG XINBANG CONSTRUCTION Co.,Ltd. |