CN102051876A - Novel tree root structure pile and construction process thereof - Google Patents
Novel tree root structure pile and construction process thereof Download PDFInfo
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- CN102051876A CN102051876A CN 201010580559 CN201010580559A CN102051876A CN 102051876 A CN102051876 A CN 102051876A CN 201010580559 CN201010580559 CN 201010580559 CN 201010580559 A CN201010580559 A CN 201010580559A CN 102051876 A CN102051876 A CN 102051876A
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Abstract
The invention discloses a novel tree root structure pile. The tree root structure pile is characterized by comprising a hollow column (1), wherein the upper end of the hollow column (1) is provided with a top cap (4), the lower end of the hollow column (1) is provided with a base (6), the side wall of the hollow column (1) is provided with a telescopic joint (2) communicated with the interior of the hollow column (1), and an expanding agent is filled in the hollow column (1). According to a construction process for the tree root structure pile, the telescopic joint extends outwards as tree roots in the construction process; and after the outward extension of the telescopic joint is completed, a filling material such as concrete and the like is poured so that the pile has higher strength and is completely stuck with the surrounding soil body. The pile of the type has reasonable structural design and wide application range; and on the premise that the length and the section area of the pile are not changed, the contact area between a pile foundation and a surrounding soil layer is obviously enlarged, so bearing capacity, friction resistance and stability of the pile are increased. Moreover, pulling resistance and sliding resistance of the pile are remarkably improved.
Description
Technical field
The present invention relates to a kind of concrete pile that is widely used in various basic loads such as construction work, bridge engineering, municipal engineering, hydraulic engineering, specifically relate to the structure and the construction technology of novel tree root shape stake, be specially adapted to a little less than the bearing capacity of foundation soil situation that has resistance to plucking, antiskid etc. to require.
Background technology
Stake is a kind of ancient technology, and important effect has all been brought into play in house in ancient times, the aspects such as building of bridge.At the Neolithic Age before 7000～8000 years, people are in order to prevent beast of prey infringement, once planted timber and build platform and build the settlement in lake and swamp land.
Along with development of times, in the building hydraulic engineering in modern times, stake has shown that still great vitality, its type also are varied.Difference according to pile shaft material can be divided branch: and timber, concrete agitation pile, steel pipe pile, steel sheet pile, reinforced concrete pile (prefabricated, cast-in-place, ordinary reinforced concrete, prestressed concrete; Square, circular, tubulose) etc.; Can be divided into according to purposes: compressive pile (common), uplift pile, antislide pile, supporting (going along with sb. to guard him) stake, water-seal pile; Can be divided into according to construction technology: hand excavated pile arranged, the dashing (brill) hole pouring pile etc. of non-soil compaction class, the soil compaction class tube-sinking cast-in-situ pile (static pressure, vibration, hammering), preformed pile (ordinary reinforced concrete, prestressed concrete arranged; Square, circular, tubulose), piling bar etc.
At present, in construction work, in the engineering constructions such as bridge engineering, municipal engineering, hydraulic engineering, related building is all developing to high level, large span, heavy-duty direction, therefore bearing capacity and frictional resistance to stake has been proposed very high requirement.In present stage generally is the load that the quantity taking to add the cross section and the length of timber pile or increase stake improves pile foundation, but significantly improved the cost of stake like this, increased the cost of engineering, especially on the ground such as soft foundation of complexity, because the not enough difficulty of bringing for design and construction of the bearing capacity of stake and frictional resistance is of common occurrence.
Summary of the invention
The objective of the invention is to have overcome that pile capacity of the prior art is not high, deficiency such as resistance to plucking and anti-slide performance are not strong, proposed that a kind of bearing capacity height, frictional resistance are big, the novel tree root shape structure stake and the construction technology thereof of good stability, but in extensive use and the building hydraulic engineering.
The technical solution used in the present invention is as follows:
The stake of a kind of novel tree root shape structure is characterized in that it being that it comprises hollow column, is provided with top cover in the lower end of hollow column, and the lower end of hollow column is provided with base, and the sidewall of hollow column is provided with the expansion coupling that communicates with hollow pile inside, and expansion agent is housed in the hollow column.
Described hollow column cross section is cylindrical or square.
Described expansion coupling is provided with four, they be evenly distributed on the circumference of cylinder type hollow post bottom or the square hollow post around on the sidewall.
The hollow pile of described band expansion coupling is provided with two on the length direction of concrete column.
The construction technology of a kind of aforesaid novel tree root shape structure stake is characterized in that its construction sequence is:
(1) at first determines the position of stake, adopt boring method to pierce the native hole of projected depth in predetermined stake position then;
(2) after boring finishes, put into hollow column, the expansion agent reaction in the hollow column is expanded to the hole bottom;
(3) under the expansion of expansion agent, expansion coupling begins to stretch out, and forms the shape that is similar to tree root behind the insertion soil body;
(4) open caping, concrete perfusion inserts in hollow column;
(5) continue concrete perfusion inserts in hollow column, when reaching a certain height, when the concrete inserts is unconsolidated, in native hole, place a hollow column again, vibrate, make hollow column and bottom concrete inserts well-bonded, with expansion agent the hollow column expansion coupling of newly putting into is stretched out then;
(6) continue concrete perfusion inserts in hollow column, finish up to construction.
Described expansion agent is gas expansion agent or noiseless expansion agent.
Compared with prior art, the invention has the beneficial effects as follows:
The stake of this type, reasonable in design, applied range can be under the prerequisites that does not change pile length and section area, increase pile foundation and the contact area between the soil layer on every side significantly, therefore increased bearing capacity, frictional resistance and the stability of stake.In addition, Zhuan resistance to plucking and cling property have all had significant raising.
Description of drawings
Fig. 1 is the overall structure schematic diagram of a kind of whole stake of the present invention.
Fig. 2 is the structural representation of hollow column of the present invention.
Fig. 3 is the section amplification figure of Fig. 1 along the A-A line.
Fig. 4 is the section amplification figure of Fig. 2 along the B-B line.
In the 1-accompanying drawing, 1, hollow column; 2, expansion coupling; 3, expansion agent; 4, top cover; 5, deck; 6, base; 7, inserts; 8, stake week is native.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and specific embodiment
Shown in Fig. 1-4, the agent structure of tree root shape of the present invention is a hollow column 1, and hollow column 1 is to have the rigid column that the hole middle and lower part separates with steel plate around one, is made up of steel plate or armored concrete slab.Be provided with top cover 4 in the lower end of hollow column 1, the lower end of hollow column 1 is provided with base 6, and the sidewall of hollow column 1 is provided with the expansion coupling 2 that communicates with hollow pile 1 inside, and expansion coupling 2 is made up of the pipe that a series of thicknesses differ, clip is being set, make expansion coupling 2 can only to protract and stretch after again can't bounce back.During beginning, expansion coupling 3 does not stretch, and is positioned at hollow column 1 inside substantially.Expansion agent 3 is housed in the hollow column 1, and the consumption of expansion agent is according to the suitable consumption of different choice in stake footpath.As required, cylindrical, square or rhombus etc. can be adopted in hollow column 1 cross section.Expansion coupling 2 is provided with three to four, they be evenly distributed on the circumference of cylinder type hollow post 1 bottom or square hollow post 1 around on the sidewall.And, can on the length direction of concrete column, two or more be set for the hollow pile 1 of band expansion coupling 2 in order to guarantee the overall construction intensity of cylinder.
The concrete construction step of above-mentioned tree root shape is poly-as follows:
(1) at first through calculating, determines the position of stake, adopt suitable boring method to pierce the native hole of projected depth in predetermined stake position then, for example adopt with augers, the first-class boring method of Churn drill.
(2) after boring finishes, put into hollow column, get according to the specific requirement of expansion agent in the hollow column then and select its sparking mode that the expansion agent reaction in the hollow column is expanded to the hole bottom.Expansion agent is can be gas expansion agent or noiseless expansion agent.
(3) under the expansion of expansion agent, expansion coupling begins to stretch out, and forms the shape that is similar to tree root behind the insertion soil body.
(4) open caping, concrete perfusion inserts in hollow column makes expansion coupling have higher intensity, intactly bond with surrounding soil.Inserts can be selected concrete for use, also can select cement paste, cement-soil or other packing materials that adopts in pile foundation for use.
(5) continue concrete perfusion inserts in hollow column, when reaching a certain height (according to actual conditions optional 2～5m), when the concrete inserts is unconsolidated, in native hole, place a hollow column again, vibrate, make hollow column and bottom concrete inserts well-bonded, with expansion agent the hollow column expansion coupling of newly putting into is stretched out then.
(6) continue concrete perfusion inserts in hollow column, finish up to construction.
Claims (6)
1. novel tree root shape structure stake, it is characterized in that it comprises hollow column (1), be provided with top cover (4) in the lower end of hollow column (1), the lower end of hollow column (1) is provided with base (6), the sidewall of hollow column (1) is provided with the expansion coupling (2) that communicates with hollow pile (1) inside, and hollow column is equipped with expansion agent in (1).
2. novel tree root shape structure according to claim 1 stake is characterized in that described hollow column (1) cross section is cylindrical or square.
3. novel tree root shape structure according to claim 2 stake is characterized in that described expansion coupling (2) is provided with four, they be evenly distributed on the circumference of cylinder type hollow post (1) bottom or square hollow post (1) around on the sidewall.
4. novel tree root shape structure according to claim 1 stake is characterized in that the hollow pile (1) of described band expansion coupling (2) is provided with two on the length direction of concrete column.
5. one kind requires the construction technology of described novel tree root shape structure stake as right 1, it is characterized in that its construction sequence is:
(1) at first determines the position of stake, adopt boring method to pierce the native hole of projected depth in predetermined stake position then;
(2) after boring finishes, put into hollow column, the expansion agent reaction in the hollow column is expanded to the hole bottom;
(3) under the expansion of expansion agent, expansion coupling begins to stretch out, and forms the shape that is similar to tree root behind the insertion soil body;
(4) open caping, concrete perfusion inserts in hollow column;
(5) continue concrete perfusion inserts in hollow column, when reaching a certain height, when the concrete inserts is unconsolidated, in native hole, place a hollow column again, vibrate, make hollow column and bottom concrete inserts well-bonded, with expansion agent the hollow column expansion coupling of newly putting into is stretched out then;
(6) continue concrete perfusion inserts in hollow column, finish up to construction.
6. the construction technology of novel tree root shape structure according to claim 5 stake is characterized in that described expansion agent is gas expansion agent or noiseless expansion agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105805598A CN102051876B (en) | 2010-12-09 | 2010-12-09 | Novel tree root structure pile and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105805598A CN102051876B (en) | 2010-12-09 | 2010-12-09 | Novel tree root structure pile and construction process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102051876A true CN102051876A (en) | 2011-05-11 |
| CN102051876B CN102051876B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105805598A Expired - Fee Related CN102051876B (en) | 2010-12-09 | 2010-12-09 | Novel tree root structure pile and construction process thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561377A (en) * | 2012-01-11 | 2012-07-11 | 重庆大学 | Seismic-resistant-columned rock bolt foundation with enlarged toe and construction method of seismic-resistant-columned rock bolt foundation with enlarged toe |
| CN103643675A (en) * | 2013-10-23 | 2014-03-19 | 叶长青 | Expansion pile construction method |
| CN104404949A (en) * | 2014-10-20 | 2015-03-11 | 国家电网公司 | Root-shaped filling pile |
| CN106638569A (en) * | 2017-02-07 | 2017-05-10 | 三峡大学 | Device and method for improving bearing capacity and stability of pile |
| CN107938659A (en) * | 2017-11-21 | 2018-04-20 | 中国冶集团有限公司 | A kind of friction pile and its construction method |
| CN108716911A (en) * | 2018-06-15 | 2018-10-30 | 重庆光大网络技术有限公司 | Land surveying device |
| CN108797576A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of steel-pipe pile and its construction method with oblique semi-girder |
| CN108797575A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of arm extending type steel-pipe pile and its construction method |
| CN108797574A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of major diameter arm extending type steel-pipe pile and its construction method |
| CN108797573A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of steel-pipe pile and its construction method with semi-girder |
| CN110886291A (en) * | 2019-11-04 | 2020-03-17 | 三峡大学 | Pile structure in coral sand environment and construction method |
| CN111155512A (en) * | 2019-12-10 | 2020-05-15 | 宣城市政建设集团有限公司 | CFG pile and construction method thereof |
| CN112376552A (en) * | 2020-11-24 | 2021-02-19 | 武汉盛士瑞建设工程有限公司 | Energy-saving pile foundation and construction method thereof |
| CN112761137A (en) * | 2021-01-21 | 2021-05-07 | 上海市城市建设设计研究总院（集团）有限公司 | Precast pile for enhancing side friction resistance and construction method thereof |
| CN113774904A (en) * | 2021-09-24 | 2021-12-10 | 中交一航局第四工程有限公司 | Construction process of rooting enhanced cast-in-place pile |
| CN114277835A (en) * | 2022-03-07 | 2022-04-05 | 中国海洋大学 | Uplift filling pile for reinforcing seabed and construction method thereof |
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| CN101139837A (en) * | 2007-08-02 | 2008-03-12 | 夏良站 | Construction plant for tree-root shaped pile |
| CN101139834A (en) * | 2007-08-02 | 2008-03-12 | 夏良站 | Concrete pile structure |
| CN201214786Y (en) * | 2008-06-19 | 2009-04-01 | 陆荣虎 | Tree root type multi-support pile |
| WO2009096723A1 (en) * | 2008-01-30 | 2009-08-06 | Ext Co., Ltd. | Pile whereof head is expandable and which has leading end expansion plate including critical inner hole |
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2010
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0270820A (en) * | 1988-09-03 | 1990-03-09 | Fukui Ceramic Togyo:Kk | Pile device having knot on its periphery and application thereof |
| CN2153578Y (en) * | 1993-02-27 | 1994-01-19 | 吴宝君 | High efficiency ground pile |
| GB2354276A (en) * | 1997-11-13 | 2001-03-21 | Kvaerner Cementation Found Ltd | Method of forming cast-in-situ pile with enlarged base |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561377A (en) * | 2012-01-11 | 2012-07-11 | 重庆大学 | Seismic-resistant-columned rock bolt foundation with enlarged toe and construction method of seismic-resistant-columned rock bolt foundation with enlarged toe |
| CN103643675A (en) * | 2013-10-23 | 2014-03-19 | 叶长青 | Expansion pile construction method |
| CN103643675B (en) * | 2013-10-23 | 2015-11-25 | 叶长青 | A kind of construction method expanding body stake |
| CN104404949A (en) * | 2014-10-20 | 2015-03-11 | 国家电网公司 | Root-shaped filling pile |
| CN106638569A (en) * | 2017-02-07 | 2017-05-10 | 三峡大学 | Device and method for improving bearing capacity and stability of pile |
| CN107938659A (en) * | 2017-11-21 | 2018-04-20 | 中国冶集团有限公司 | A kind of friction pile and its construction method |
| CN108797575A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of arm extending type steel-pipe pile and its construction method |
| CN108797576A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of steel-pipe pile and its construction method with oblique semi-girder |
| CN108716911A (en) * | 2018-06-15 | 2018-10-30 | 重庆光大网络技术有限公司 | Land surveying device |
| CN108797574A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of major diameter arm extending type steel-pipe pile and its construction method |
| CN108797573A (en) * | 2018-06-15 | 2018-11-13 | 山东科技大学 | A kind of steel-pipe pile and its construction method with semi-girder |
| CN108716911B (en) * | 2018-06-15 | 2023-12-26 | 重庆光大网络技术有限公司 | Land mapping device |
| CN110886291A (en) * | 2019-11-04 | 2020-03-17 | 三峡大学 | Pile structure in coral sand environment and construction method |
| CN111155512A (en) * | 2019-12-10 | 2020-05-15 | 宣城市政建设集团有限公司 | CFG pile and construction method thereof |
| CN112376552A (en) * | 2020-11-24 | 2021-02-19 | 武汉盛士瑞建设工程有限公司 | Energy-saving pile foundation and construction method thereof |
| CN112761137A (en) * | 2021-01-21 | 2021-05-07 | 上海市城市建设设计研究总院（集团）有限公司 | Precast pile for enhancing side friction resistance and construction method thereof |
| CN113774904A (en) * | 2021-09-24 | 2021-12-10 | 中交一航局第四工程有限公司 | Construction process of rooting enhanced cast-in-place pile |
| CN114277835A (en) * | 2022-03-07 | 2022-04-05 | 中国海洋大学 | Uplift filling pile for reinforcing seabed and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN102051876B (en) | 2012-05-09 |
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Granted publication date: 20120509 Termination date: 20121209 |