CN102155009A - Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof - Google Patents
Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof Download PDFInfo
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- CN102155009A CN102155009A CN 201110134869 CN201110134869A CN102155009A CN 102155009 A CN102155009 A CN 102155009A CN 201110134869 CN201110134869 CN 201110134869 CN 201110134869 A CN201110134869 A CN 201110134869A CN 102155009 A CN102155009 A CN 102155009A
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Abstract
The invention relates to a crushed rock pile used for strengthening an extremely soft soil foundation and a construction method thereof, capable of effectively controlling filling quantity of crushed rock filler so as to reduce the foundation strengthening construction cost. The crushed rock pile comprises a net barrel (10) which vertically extends to a foundation supporting layer or design elevation and crushed rock filler (20) which is filled in the net barrel (10) densely, wherein the circumference of the net barrel (10) is provided with a grid structure, and the grid size of the grid structure is smaller than the grain size of the crushed rock filler (20). The construction method comprises the following steps of: mounting a pile head (30) at the lower end of an immersed tube, placing the net barrel (10) in the immersed tube; filling the crushed rock filler (20) into the net barrel (10); acting on the immersed tube by adopting static pressure or vibrating equipment so that the immersed tube is immersed into soil and reaches the foundation supporting layer or the design elevation; and vertically lifting the immersed tube upward until the immersed tube is pulled out of a pile hole. By adopting the crushed rock pile and the construction method provided by the invention, the crushed rock filler can be prevented from radially spreading outside a pile, so that the crushed rock filling quantity is bassically consistent with the volume of the pile body of the crushed rock pile, thereby well exerting the advantage of low manufacturing cost of the crushed rock pile.
Description
Technical field
The present invention relates to the ground stabilization measure, particularly a kind of broken stone pile and job practices thereof that is used for utmost point reinforced soft soil ground.
Background technology
When natural ground can not satisfy building to the requiring of ground, need handle ground, form the artificial foundation, with safety and normal use that guarantees building.Vertical enhancing bluk recombination ground is the ground stabilization treatment technology measure of using always, and the vertical enhancing body of using in engineering at present has broken stone pile, sand pile, cement earth pile, lime pile, various low-intensity stake and reinforced concrete pile etc.Wherein, because replacement stone pile composite foundation can be given full play to its metathesis, increase the shear strength of ground; Simultaneously, the rubble pile body has good seepage of water, under the effect of upper load, can play good drainage, can quicken the intensity of ground consolidation, increase ground, reduces the settling amount of ground; In addition, rubble pile body material source is abundant, and with low cost also is the considerable advantage of broken stone pile.Therefore, in recent years in reinforced soft soil ground is handled extensive use replacement stone pile composite foundation and obtain remarkable effect.But, when passing dead-soft soil such as mud, peat layer when broken stone pile, the rubble filler that vibroflotation method, immersed tunnelling method commonly used all can't effectively be avoided being packed into is clamp-oned in the lower soft soil layer of intensity to stake footpath external diffusion, cause rubble pile body lack of homogeneity, particularly the actual amount of engineering practice medium stone filler usually is several times as much as the broken stone pile pile body volume of design, the cheap main advantage of broken stone pile can't be brought into play, cause ground stabilization treatment project cost to increase considerably, this is the technical barrier that is always effectively solved.
Summary of the invention
Technical problem to be solved by this invention provides a kind of broken stone pile that is used for utmost point reinforced soft soil ground, can control the loading of rubble filler effectively, thereby saves ground stabilization treatment project cost.
It is as follows that the present invention solves this technical problem the technical scheme that is adopted:
The present invention is used for the broken stone pile of utmost point reinforced soft soil ground, it is characterized in that this broken stone pile comprises the rubble filler of the net tube that vertically extends to soil supporting layer or design altitude and closely knit filling in it, this net tube perisporium has network, and its size of mesh opening is less than the rubble packing material size.
Another technical problem to be solved by this invention provides a kind of above-mentioned job practices that is used for the broken stone pile of utmost point reinforced soft soil ground, and this method comprises the steps: 1. pile crown to be installed in the immersed tube lower end, will net tube and place in the immersed tube; 2. in the net tube, fill the rubble filler; 3. use static pressure or vibratory equipment to act on immersed tube, make it sink to soil layer to soil supporting layer or design altitude; 4. promote immersed tube straight up, until transfering to the stake hole.
The invention has the beneficial effects as follows, to have mesh-structured net tube constraint rubble filler, can avoid the rubble filler to stake footpath external diffusion when passing dead-soft soil such as mud, peat layer when broken stone pile effectively, rubble filler loading is conformed to substantially with the broken stone pile pile body volume of design, give full play of the cheap advantage of broken stone pile, thereby control ground stabilization treatment project cost effectively; Simple in structure, easy construction, and guarantee that the drainage of broken stone pile is not affected.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 is the longitudinal plane structure schematic diagram of the present invention's broken stone pile of being used for utmost point reinforced soft soil ground;
Fig. 2 is the cross-sectional configuration schematic diagram of the present invention's broken stone pile of being used for utmost point reinforced soft soil ground.
Component shown in the figure, toponym and pairing marker number: net tube 10, rubble filler 20, pile crown 30.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
See figures.1.and.2, the present invention is used for the broken stone pile of utmost point reinforced soft soil ground, comprise the net tube 10 that vertically extends to soil supporting layer or design altitude and the rubble filler 20 of the closely knit filling of Qi Nei, these net tube 10 perisporiums have network, and its size of mesh opening is less than rubble filler 20 particle diameters.To have mesh-structured net tube 10 constraint rubble fillers 20, can avoid rubble filler 20 to stake footpath external diffusion when passing dead-soft soil such as mud, peat layer when broken stone pile effectively, rubble filler loading is conformed to substantially with the broken stone pile pile body volume of design, give full play of the cheap advantage of broken stone pile, thereby control ground stabilization treatment project cost effectively.
The present invention is used for the job practices of the broken stone pile of utmost point reinforced soft soil ground, comprises the steps:
1. pile crown 30 is installed in the immersed tube lower end, will nets tube 10 and place in the immersed tube;
2. in net tube 10, fill rubble filler 20;
3. use static pressure or vibratory equipment to act on immersed tube, make it sink to soil layer to soil supporting layer or design altitude;
4. promote immersed tube straight up, until transfering to the stake hole.
With reference to Fig. 1, after immersed tube was transferred to, pile crown 30 was kept somewhere at the bottom of stake, and pile crown 30 adopts the concrete pile crown usually, and its bottom is tapered.Promote straight up in the immersed tube process and should control pipe-pulling speed, and the vibration of tube drawing limit, limit, so that the 20 closely knit fillings of rubble filler.
The above the present invention that just explains through diagrams is used for the broken stone pile of utmost point reinforced soft soil ground and some principles of job practices thereof, be not be the present invention to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (4)
1. the broken stone pile that is used for utmost point reinforced soft soil ground, it is characterized in that: this broken stone pile comprises the rubble filler (20) of the net tube (10) that vertically extends to soil supporting layer or design altitude and closely knit filling in it, this net tube (10) perisporium has network, and its size of mesh opening is less than rubble filler (20) particle diameter.
2. be used for the broken stone pile of utmost point reinforced soft soil ground according to claim 1, it is characterized in that: described net tube (10) is made by earthwork grid or geo-grid.
3. be used for the job practices of the broken stone pile of utmost point reinforced soft soil ground as claimed in claim 1 or 2, comprise the steps:
1. pile crown (30) is installed in the immersed tube lower end, will nets tube (10) and place in the immersed tube;
2. in net tube (10), fill rubble filler (20);
3. use static pressure or vibratory equipment to act on immersed tube, make it sink to soil layer to soil supporting layer or design altitude;
4. promote immersed tube straight up, until transfering to the stake hole.
4. as being used for the job practices of the broken stone pile of utmost point reinforced soft soil ground as described in the claim 3, it is characterized in that: described pile crown (30) adopts the concrete pile crown, and its bottom is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110134869 CN102155009A (en) | 2011-05-23 | 2011-05-23 | Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110134869 CN102155009A (en) | 2011-05-23 | 2011-05-23 | Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof |
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| CN102155009A true CN102155009A (en) | 2011-08-17 |
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| CN 201110134869 Pending CN102155009A (en) | 2011-05-23 | 2011-05-23 | Crushed rock pile used for strengthening extremely soft soil foundation and construction method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828498A (en) * | 2012-05-10 | 2012-12-19 | 湖南大学 | Method for constructing gravel pile of hoop of immersed tube for reinforcing soft foundation |
| CN102953372A (en) * | 2012-11-14 | 2013-03-06 | 福建工程学院 | Steel pipe pile and construction method thereof |
| CN103437336A (en) * | 2013-08-27 | 2013-12-11 | 武汉中力岩土工程有限公司 | PVC hole-pipe gravel pile and soft foundation processing method thereof |
| CN105350513A (en) * | 2015-12-04 | 2016-02-24 | 中铁第四勘察设计院集团有限公司 | Novel construction method for end-bearing type composite consolidated foundation |
| CN105507227A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel construction method of large-diameter composite structure pile consolidated foundation |
| CN105507230A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel lateral resistance type composite construction method for consolidating foundations |
| CN105507228A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel construction method of suspended composite consolidated foundation |
| CN105544502A (en) * | 2015-12-04 | 2016-05-04 | 中铁第四勘察设计院集团有限公司 | Novel construction method of strengthening pile for deep soft soil foundation |
| CN105780753A (en) * | 2016-03-28 | 2016-07-20 | 北京中岩大地科技股份有限公司 | Construction method for stabilized soil piles |
| CN106677154A (en) * | 2017-01-20 | 2017-05-17 | 山西省交通科学研究院 | Collapsible loess foundation rubble frame structure reinforcement system and reinforcement method |
| CN107143692A (en) * | 2017-06-12 | 2017-09-08 | 中国能源建设集团安徽电力建设第工程有限公司 | A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method |
| CN107884311A (en) * | 2017-11-03 | 2018-04-06 | 中建港务建设有限公司 | A kind of monitoring ultrasonic system and method controlled in real time for sand pile quality |
| CN108411889A (en) * | 2018-03-07 | 2018-08-17 | 清华大学 | A kind of cementing broken stone pile of structuring and its construction method |
| CN110296462A (en) * | 2019-07-04 | 2019-10-01 | 深圳大学 | Utilize the earth source heat pump heat-exchanger rig and construction method of phase-change accumulation energy |
| CN110863480A (en) * | 2019-12-12 | 2020-03-06 | 中国电建集团成都勘测设计研究院有限公司 | Anti-filter vibroflotation gravel pile |
| CN112227344A (en) * | 2020-10-11 | 2021-01-15 | 福建新华夏建工有限公司 | Soft foundation reinforcement construction method with good reinforcement effect |
| CN116988736A (en) * | 2023-07-19 | 2023-11-03 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
| CN117988317A (en) * | 2024-03-29 | 2024-05-07 | 中铁城建集团第一工程有限公司 | Gravel pile and construction process thereof |
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| DE2440192A1 (en) * | 1974-08-22 | 1976-03-04 | Held & Francke Bau Ag | METHOD AND DEVICE FOR STABILIZATION OF FLOORS |
| CN101476315A (en) * | 2009-01-16 | 2009-07-08 | 陕西长嘉实业发展有限公司 | Method for processing soft foundation by net bag method |
| CN101831901A (en) * | 2010-05-13 | 2010-09-15 | 广东省长大公路工程有限公司 | Shallow poor subsoil composite foundation stabilization treatment method |
| CN101858077A (en) * | 2010-04-27 | 2010-10-13 | 河海大学 | Construction method of composite foundation with bagged compacting and slurry cementing small-diameter gravel pile |
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Patent Citations (4)
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| DE2440192A1 (en) * | 1974-08-22 | 1976-03-04 | Held & Francke Bau Ag | METHOD AND DEVICE FOR STABILIZATION OF FLOORS |
| CN101476315A (en) * | 2009-01-16 | 2009-07-08 | 陕西长嘉实业发展有限公司 | Method for processing soft foundation by net bag method |
| CN101858077A (en) * | 2010-04-27 | 2010-10-13 | 河海大学 | Construction method of composite foundation with bagged compacting and slurry cementing small-diameter gravel pile |
| CN101831901A (en) * | 2010-05-13 | 2010-09-15 | 广东省长大公路工程有限公司 | Shallow poor subsoil composite foundation stabilization treatment method |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828498A (en) * | 2012-05-10 | 2012-12-19 | 湖南大学 | Method for constructing gravel pile of hoop of immersed tube for reinforcing soft foundation |
| CN102953372A (en) * | 2012-11-14 | 2013-03-06 | 福建工程学院 | Steel pipe pile and construction method thereof |
| CN103437336A (en) * | 2013-08-27 | 2013-12-11 | 武汉中力岩土工程有限公司 | PVC hole-pipe gravel pile and soft foundation processing method thereof |
| CN105350513A (en) * | 2015-12-04 | 2016-02-24 | 中铁第四勘察设计院集团有限公司 | Novel construction method for end-bearing type composite consolidated foundation |
| CN105507227A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel construction method of large-diameter composite structure pile consolidated foundation |
| CN105507230A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel lateral resistance type composite construction method for consolidating foundations |
| CN105507228A (en) * | 2015-12-04 | 2016-04-20 | 中铁第四勘察设计院集团有限公司 | Novel construction method of suspended composite consolidated foundation |
| CN105544502A (en) * | 2015-12-04 | 2016-05-04 | 中铁第四勘察设计院集团有限公司 | Novel construction method of strengthening pile for deep soft soil foundation |
| CN105780753A (en) * | 2016-03-28 | 2016-07-20 | 北京中岩大地科技股份有限公司 | Construction method for stabilized soil piles |
| CN106677154A (en) * | 2017-01-20 | 2017-05-17 | 山西省交通科学研究院 | Collapsible loess foundation rubble frame structure reinforcement system and reinforcement method |
| CN107143692A (en) * | 2017-06-12 | 2017-09-08 | 中国能源建设集团安徽电力建设第工程有限公司 | A kind of soft soil along the coast Prestressed concrete cylinder pipe pipeline installation construction method |
| CN107884311A (en) * | 2017-11-03 | 2018-04-06 | 中建港务建设有限公司 | A kind of monitoring ultrasonic system and method controlled in real time for sand pile quality |
| CN108411889A (en) * | 2018-03-07 | 2018-08-17 | 清华大学 | A kind of cementing broken stone pile of structuring and its construction method |
| CN110296462A (en) * | 2019-07-04 | 2019-10-01 | 深圳大学 | Utilize the earth source heat pump heat-exchanger rig and construction method of phase-change accumulation energy |
| CN110296462B (en) * | 2019-07-04 | 2020-03-13 | 深圳大学 | Ground source heat pump heat exchange device utilizing phase change energy storage and construction method |
| CN110863480A (en) * | 2019-12-12 | 2020-03-06 | 中国电建集团成都勘测设计研究院有限公司 | Anti-filter vibroflotation gravel pile |
| CN112227344A (en) * | 2020-10-11 | 2021-01-15 | 福建新华夏建工有限公司 | Soft foundation reinforcement construction method with good reinforcement effect |
| CN116988736A (en) * | 2023-07-19 | 2023-11-03 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
| CN116988736B (en) * | 2023-07-19 | 2024-02-20 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
| CN117988317A (en) * | 2024-03-29 | 2024-05-07 | 中铁城建集团第一工程有限公司 | Gravel pile and construction process thereof |
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Application publication date: 20110817 |