CN105019421A - Integral composite work cushion layer suitable for ultra-soft land foundation processing - Google Patents
Integral composite work cushion layer suitable for ultra-soft land foundation processing Download PDFInfo
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- CN105019421A CN105019421A CN201410178129.1A CN201410178129A CN105019421A CN 105019421 A CN105019421 A CN 105019421A CN 201410178129 A CN201410178129 A CN 201410178129A CN 105019421 A CN105019421 A CN 105019421A
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Abstract
The invention provides an integral composite work cushion layer suitable for new hydraulic reclamation ultra-soft land foundation processing. The integral composite work cushion layer is located on the surface of an ultra-soft land foundation and comprises a surface cushion layer, a geogrid layer and a sand quilt bottom face cushion layer from top to bottom. The sand quilt bottom face cushion layer comprises a bottom layer of cloth, a top layer of cloth and separation walls evenly arranged between the bottom layer of cloth and the top layer of cloth. The space between the bottom layer of cloth and the top layer of cloth in the length direction is divided into a plurality of separation bins through the separation walls. A plurality of sand bags extending downwards are arranged at the bottom of the bottom layer of cloth, wherein openings of the sand bags are located on the bottom layer of cloth. The top layer of cloth is provided with sleeve openings formed on the top layer of cloth, wherein the sleeve openings extend upwards. Continuous and through rectangular filling bags surrounding the top layer of cloth in the center are arranged on the peripheral boundary of the bottom layer of cloth. The rectangular filling bags, the sand bags and the separation bins are filled with filler. The integral composite work cushion layer is short in construction period, high in construction efficiency and especially suitable for newly hydraulic reclamation ultra-soft foundation processing projects.
Description
Technical field
The present invention relates to foundation treatment technology field.
Background technology
In recent years, domesticly start one reclaiming land around sea upsurge, to alleviate the contradiction of coastal area economic construction and land used deficiency, as large-area reclamation engineering has successively been carried out in the coastal areas such as Guangzhou, Shenzhen, Xiamen, Tianjin, Lianyun Harbour, Wenzhou, Zhuhai, Huizhou.
Along with the exhaustive exploitation of natural resource, cut into a mountain stone, sand material etc. is now more deficient, its cost is also very expensive, and country proposes higher environmental requirement to engineering construction now, therefore, the dredging silt in current reclamation engineering many employings basin navigation channel, as material of reclaiming fields from the sea, forms land-based area after waterpower hydraulic reclamation.Recently hydraulic reclamation super soft weak soil, then mainly refer to dredging silt through waterpower reinvent with particle again sorting after, not yet complete from resedimentation, glutinous grain and strong hydrophilicity mineral content is high, structure is extremely loose, moisture content is high, the firm hydraulic reclamation that is in flowing or suspended state is formed weak soil, its engineering properties extreme difference, bearing capacity of foundation soil are almost nil.Obviously, construction equipment cannot directly be constructed at such ground.
Therefore, in view of the situation that coastal area construction land day is becoming tight, if construction equipment can be made successfully to construct on new hydraulic reclamation super soft ground, then can solve the problems such as such foundation treatment engineering construction period is long, efficiency is low at present undoubtedly, there is great engineering significance.
Summary of the invention
The object of the invention is to overcome the deficiency of the existing treatment technology of hydraulic reclamation super soft weak soil ground recently, there is provided that a kind of construction period is short, efficiency of construction is high, construction cost is low, be particularly useful for the overall composite working cushion layer of the super soft foundation of the hydraulic reclamation recently process engineering that reclaiming land around sea is formed.
For achieving the above object, the present invention adopts following technical proposals: the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently, described overall composite working cushion layer is positioned at super soft weak soil foundation surface, comprise surperficial bed course from top to bottom, geogrids layer and sand are by bottom surface bed course, described sand is comprised by bottom surface bed course: a bottom cloth body, one top layer cloth body, evenly be arranged at some partition walls between bottom cloth body with top layer cloth body and parallel with bottom surface bed course width, the space of length direction between bottom cloth body and top layer cloth body is separated into several compartments by described partition wall, be provided with several bottom bottom cloth body and be opened on bottom cloth body and the sand pocket extended downwards, corresponding to the position of sand pocket, described top layer cloth body offers and is opened on top layer cloth body and the cuff extended upward, described bottom cloth body is larger than the projected area of top layer cloth body, and continuous and through microscler filling bag top layer cloth body being surrounded on center is provided with on bottom cloth body surrounding border, described microscler filling bag, all filler is filled with in sand pocket and in compartment.
Preferably, described filler is middle fine sand or Extra-fine sand.
Specifically, described bottom cloth body and top layer cloth body are spliced to form by woven cloth.
Preferably, the width of described microscler filling bag is that 1.5 ~ 2.5m is wide.
Specifically, described sand is covered super soft weak soil ground by bottom surface bed course and treats stabilization zone and stretch out in the region of 1 ~ 2m from border, stabilization zone.
Preferably, described sand pocket is opened on the center line of each compartment.
Preferably, the material of partition wall is identical with bottom cloth body, and the spacing of partition wall is 10 ~ 15m, and the height of partition wall is 0.4 ~ 0.6m.
Preferably, described cuff material is identical with surface layer cloth body material, and cuff length is 30 ~ 50cm, diameter is 30cm ~ 50cm.
The overall composite working cushion layer construction period of the present invention is short, efficiency of construction is high, construction cost is low, is particularly useful for the super soft foundation of the hydraulic reclamation recently process engineering that reclaiming land around sea is formed.
Accompanying drawing explanation
Fig. 1 is the construction sequence schematic diagram of overall composite working cushion layer bottom surface bed course.
In figure: 1-bottom cloth body; 2-piece; 3-partition wall; 4-reinforced bands; 5-sand pocket; The microscler filling bag of 6-; 7-surface layer cloth body; 8-piece; 9-cuff.
Fig. 2 is the construction sectional schematic diagram of overall composite working cushion layer.
In figure: 10-new hydraulic reclamation super soft weak soil ground; 11-bottom surface bed course; 12-geo-grid; 13-covers middle fine sand or in thick bed course.
Detailed description of the invention:
Below be only enforcement example of the present invention, scope of the present invention can not be limited with this.Namely the unsubstantiality in every case done according to the present patent application the scope of the claims changes and modifies, and all should still remain within the scope of the patent.
Detailed description of the invention step is as follows:
According to the reinforcing area size determination sand of hydraulic reclamation super soft weak soil ground 10 recently by the size of bottom surface bed course 11, the latter must at reinforcing area periphery toward extension 1 ~ 2m.
As shown in the step (1) of Fig. 1, be that the woven cloth of 200 ~ 280g/m2 forms bottom cloth body 1 by the mode that piece 2 connects by some pieces of quality.Arrange the partition wall 3 of some along the direction with bottom cloth body width parallel, the material of partition wall is with bottom cloth body, and the spacing of partition wall is 10 ~ 15m, is highly 0.4 ~ 0.6m.
Two adjacent partition walls form a compartment district, uniformly on the axis in each compartment district be opened on bottom cloth body and to the sand pocket 5 of downward-extension, sand pocket material is with bottom cloth body, sand pocket length is about 4m, diameter is 30cm ~ 50cm, spacing can be 6m, specifically can adjust according to engineering practice.
Bottom cloth body longitudinally rolls up/folds/wraps up in growth strip to be placed on border, stabilization zone in an orderly manner, and the bottom cloth body spooled promotes with stock by the floating platform that constructor is formed by plastic foam plate, makes it spread out smoothly on reinforcing area 10 surface.
Within bottom cloth body 1 surrounding border, make the microscler filling bag 6 that 2m is wide, the microscler filling bag of surrounding need form through loop.
Adopt symmetrical filling method by sand pump or sand ship to pumping casting resin (can be middle fine sand, Extra-fine sand) in the microscler filling bag 6 of surrounding, need guarantee that filling is even, filling thickness is at least 1.0m, reserved enough time, the elongated filling bag of surrounding is sunk stable.Then, to adopt from surrounding toward middle symmetrical filling method successively to pumping casting resin in sand pocket 5 (middle fine sand, medium coarse sand), need guarantee that filling is closely knit.
Be that the top of each road partition wall 3 adopts the mode that connects of piece 8 to form surface layer cloth body 7 by the woven cloth of 200 ~ 280g/m2 by some pieces of quality.Surface layer cloth body 7 area is less than bottom cloth body 1, is centered around center by microscler filling bag.Surface layer cloth body 1 and bottom cloth body 7 surround a filling bag, and the bag chamber of this filling bag is separated into multiple compartment by partition wall 3.
On surface layer cloth body 7 surface, be right against above bottom cloth body sand pocket opening and arrange cuff 9, cuff material is with surface layer cloth body, and cuff length is 30 ~ 50cm, diameter is 30cm ~ 50cm, specifically can adjust according to engineering practice.
Adopt along bottom cloth body length direction and pass through sand pump or sand ship via cuff to pumping casting resin in compartment (can be middle fine sand, Extra-fine sand) from both sides toward middle symmetrical filling method, stowing pressure does not occur to burst for principle controls with filling bag, guarantee to fill the uniformity of bag in stowing operation, filling thickness is 0.4m ~ 0.6m, and reserved time enough makes its abundant draining closely knit, finally tightens filling cuff.Thus constitute bottom surface bed course 11.
Bottom surface bed course 11 first lays one deck geo-grid 12, then layering hydraulic reclamation or thin or medium coarse sand bed course 13 in laying, thus constructed and be applicable to the overall composite working cushion layer of hydraulic reclamation super soft weak soil basement process recently.Wherein, if in thin or Extra-fine sand bed course, its thickness is not less than 0.6m, and grating is good, free from admixture, and mud content is not more than 10%, and transmission coefficient is not less than 1 × 10-3cm/s; If medium coarse sand bed course, its thickness is not less than 0.4m, and grating is good, free from admixture, and mud content is not more than 5%, and transmission coefficient is not less than 5 × 10-3cm/s.
Claims (8)
1. be applicable to the overall composite working cushion layer of hydraulic reclamation super soft weak soil basement process recently, it is characterized in that: described overall composite working cushion layer is positioned at super soft weak soil foundation surface, comprise surperficial bed course from top to bottom, geogrids layer and sand are by bottom surface bed course, described sand is comprised by bottom surface bed course: a bottom cloth body, one top layer cloth body, evenly be arranged at some partition walls between bottom cloth body with top layer cloth body and parallel with bottom surface bed course width, the space of length direction between bottom cloth body and top layer cloth body is separated into several compartments by described partition wall, be provided with several bottom bottom cloth body and be opened on bottom cloth body and the sand pocket extended downwards, corresponding to the position of sand pocket, described top layer cloth body offers and is opened on top layer cloth body and the cuff extended upward, described bottom cloth body is larger than the projected area of top layer cloth body, and continuous and through microscler filling bag top layer cloth body being surrounded on center is provided with on bottom cloth body surrounding border, described microscler filling bag, all filler is filled with in sand pocket and in compartment.
2. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: described filler is middle fine sand or Extra-fine sand.
3. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: described bottom cloth body and top layer cloth body are spliced to form by woven cloth.
4. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: the width of described microscler filling bag is that 1.5 ~ 2.5m is wide.
5. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: described sand is covered super soft weak soil ground by bottom surface bed course and treats stabilization zone and stretch out in the region of 1 ~ 2m from border, stabilization zone.
6. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: described sand pocket is opened on the center line of each compartment.
7. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 3, it is characterized in that: the material of partition wall is identical with bottom cloth body, the spacing of partition wall is 10 ~ 15m, the height of partition wall is 0.4 ~ 0.6m.
8. the overall composite working cushion layer being applicable to hydraulic reclamation super soft weak soil basement process recently according to claim 1, is characterized in that: described cuff material is identical with surface layer cloth body material, and cuff length is 30 ~ 50cm, diameter is 30cm ~ 50cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410178129.1A CN105019421B (en) | 2014-04-29 | 2014-04-29 | Integral composite work cushion layer suitable for ultra-soft land foundation processing |
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| CN201410178129.1A CN105019421B (en) | 2014-04-29 | 2014-04-29 | Integral composite work cushion layer suitable for ultra-soft land foundation processing |
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| CN105019421A true CN105019421A (en) | 2015-11-04 |
| CN105019421B CN105019421B (en) | 2017-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197269A (en) * | 2021-11-15 | 2022-03-18 | 鸿厦建设有限公司 | Soft geological soil foundation reinforcement construction method |
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| CN2911010Y (en) * | 2006-06-09 | 2007-06-13 | 华南理工大学 | Fast reinforcing apparatus for blowing-filling sludge ground |
| JP2008223475A (en) * | 2004-07-20 | 2008-09-25 | Kyokado Eng Co Ltd | Grouting method |
| 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 |
| CN102127908A (en) * | 2011-04-18 | 2011-07-20 | 中交四航工程研究院有限公司 | Method for quickly reinforcing ultra-soft soil foundation by using bagged sand cushion |
| CN202718080U (en) * | 2012-08-23 | 2013-02-06 | 浙江暨阳建设集团有限公司 | Composite foundation with piles sacked in geotextile sacks |
| CN204098006U (en) * | 2014-04-29 | 2015-01-14 | 中交四航工程研究院有限公司 | Be applicable to the overall composite working cushion layer of super soft weak soil basement process |
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2014
- 2014-04-29 CN CN201410178129.1A patent/CN105019421B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008223475A (en) * | 2004-07-20 | 2008-09-25 | Kyokado Eng Co Ltd | Grouting method |
| CN2911010Y (en) * | 2006-06-09 | 2007-06-13 | 华南理工大学 | Fast reinforcing apparatus for blowing-filling sludge ground |
| 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 |
| CN102127908A (en) * | 2011-04-18 | 2011-07-20 | 中交四航工程研究院有限公司 | Method for quickly reinforcing ultra-soft soil foundation by using bagged sand cushion |
| CN202718080U (en) * | 2012-08-23 | 2013-02-06 | 浙江暨阳建设集团有限公司 | Composite foundation with piles sacked in geotextile sacks |
| CN204098006U (en) * | 2014-04-29 | 2015-01-14 | 中交四航工程研究院有限公司 | Be applicable to the overall composite working cushion layer of super soft weak soil basement process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197269A (en) * | 2021-11-15 | 2022-03-18 | 鸿厦建设有限公司 | Soft geological soil foundation reinforcement construction method |
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Inventor after: Li Yibo Inventor after: Li Yan Inventor after: Li Rongbo Inventor after: Ruan Tao Inventor after: Tang Huixiang Inventor after: Xie Rongxing Inventor after: Zhang Jianxi Inventor after: Zheng Guang Inventor after: Mo Zhiping Inventor after: Sun Yunjian Inventor after: Sun Shuqing Inventor after: Chen Chaodian Inventor after: Dong Zhiliang Inventor after: Bao Shufeng Inventor after: Lin Junhua Inventor after: Zhou Hongxing Inventor before: Bao Shufeng Inventor before: Zhou Qi Inventor before: Tang Huixiang Inventor before: Xie Rongxing Inventor before: Chen Chaodian Inventor before: Dong Zhiliang Inventor before: Lou Yan Inventor before: Lin Junhua Inventor before: Sun Yunjian Inventor before: Chen Pingshan Inventor before: Li Yan Inventor before: Cao Zhixing Inventor before: Zhou Hongxing |
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Effective date of registration: 20160620 Address after: 510100 No. 406 East Yanjiang Road, Guangzhou, Guangdong, Yuexiu District Applicant after: Guangzhou port Limited by Share Ltd Applicant after: Zhongjiao Sihang Engineering Inst. Co., Ltd. Applicant after: The Second Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd. Applicant after: CCCC Fourth Harbor Geotechnical Engineering Co., Ltd. Applicant after: Guangzhou Harbor Engineering Quality Examination Co., Ltd. Applicant after: Guangzhou Sihang Material Technology Co., Ltd. Address before: 510230 Guangzhou Qianjin Road, Guangdong, No. 157 Applicant before: Zhongjiao Sihang Engineering Inst. Co., Ltd. Applicant before: The Second Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd. Applicant before: Guangzhou Port Group Co., Ltd. Applicant before: CCCC Fourth Harbor Geotechnical Engineering Co., Ltd. Applicant before: Guangzhou Harbor Engineering Quality Examination Co., Ltd. Applicant before: Guangzhou Sihang Material Technology Co., Ltd. |
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