CN101608457A - The method of processing wharf foundation by geotextile granular material pile - Google Patents
The method of processing wharf foundation by geotextile granular material pile Download PDFInfo
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- CN101608457A CN101608457A CNA2009100633198A CN200910063319A CN101608457A CN 101608457 A CN101608457 A CN 101608457A CN A2009100633198 A CNA2009100633198 A CN A2009100633198A CN 200910063319 A CN200910063319 A CN 200910063319A CN 101608457 A CN101608457 A CN 101608457A
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- 239000004746 geotextile Substances 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000008187 granular material Substances 0.000 title claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 14
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the civil engineering construction field, be specifically related to a kind of method of handling the harbour basis.The method of processing wharf foundation by geotextile granular material pile is characterized in that it comprises the steps: 1) according to the wharf apron depth condition, basic engineering is not dredged or is carried out shallow slot and dredge; 2) in the scope that is not less than harbour basis length and width size, lay the geotextile granular pile; 3) level is laid the layer of geotextile layer on the mud face of geotextile granular pile top bit; 4) on the geotextile layer of having laid, lay basic mattress layer; 5) basic mattress layer employing tamping or quick-fried rammer are closely knit; 6) lay one deck second geogrids layer in closely knit basic mattress layer top, horizontal; 7) lay prefabricated reinforced concrete caisson or steel concrete square on second geogrids layer.This method can be saved construction investment, accelerating construction progress, and the minimizing people is the phenomenon of back-silting.
Description
Technical field
The invention belongs to the civil engineering construction field, be specifically related to a kind of method of handling the harbour basis.
Background technology
At present, port works gravity type quay or counterfort formula harbour Base Design processing method are that foundation trench dredging is carried out on the harbour basis, in foundation trench, change then and fill out medium coarse sand or piece (broken) stone, through ramming closely knit after, structures such as prefabricated reinforced concrete caisson or square are placed in to change fill out on the surface of base, to reach the requirement that reduces foundation settlement and guarantee base fixed.But because of harbour engineering soft base under water is often thicker, its basis digs that to change the engineering quantity of filling out often huge, thereby construction speed is slow, construction costs is high, and the mud after excavating inclines and often easily pours in basin once more with tide and stormy waves after throwing and cause the secondary phenomenon of back-silting.
Summary of the invention
The object of the present invention is to provide a kind of method of processing wharf foundation by geotextile granular material pile, this method can be saved construction investment, accelerating construction progress, and the minimizing people is the phenomenon of back-silting.
To achieve these goals, technical scheme of the present invention is: the method for processing wharf foundation by geotextile granular material pile is characterized in that it comprises the steps:
1) according to the wharf apron depth condition, basic engineering is not dredged or is carried out shallow slot and dredge, and the foundation trench dredging degree of depth is not more than 250cm;
2) in the scope that is not less than harbour basis length and width size, (grow up in the long 0～3m in harbour basis, be wider than in the scope of the wide 0～3m size in harbour basis) that (job practices of geotextile granular pile is seen Chinese patent application 200810197321.X, and denomination of invention is: the method for processing soft foundation by earthwork fabric granular pile) to lay geotextile granular pile 1; The plane mode of laying out pile is quadrangle or triangle, the stake footpath parameter 40～200cm of geotextile granular pile, the spacing of geotextile granular pile is 0.4～5m, the stake of geotextile granular pile is long to be 1～30m, and the spacing of geotextile granular pile and stake are long can be calculated or test definite according to the stable of basis and distortion settlement request;
3) level is laid layer of geotextile layer 2 on the mud face of geotextile granular pile top bit, and geotextile layer 2 is the composite construction layer of one deck geotextiles or one deck geotextiles and geo-grid;
4) lay basic mattress layer 3 on the geotextile layer of having laid 2, the material of basic mattress layer 3 is coarse sand or piece (broken) stone, and the thickness of foundation pad is 50～250cm;
5) basic mattress layer employing tamping or quick-fried rammer are closely knit;
6) material of laying one deck second geogrids layer 5, the second geogrids layer in closely knit basic mattress layer top, horizontal is a geo-grid;
7) lay prefabricated reinforced concrete caisson or steel concrete square 6 on second geogrids layer 5.
In the described basic mattress layer, be geo-grid by the material of laying first geogrids layer, 4, the first geogrids layer 4 apart from level of per 50～100cm interlamellar spacing.Can establish 1～4 first geogrids layer in the mattress layer of basis.
The distance of described interlamellar spacing is meant: the distance between basecoat first geogrids layer and the geotextile layer 2, first adjacent geogrids layer and the distance between first geogrids layer, the distance between last layer first geogrids layer and second geogrids layer 5.
The maximum particle diameter of piece (broken) stone should not surpass 10cm.
The invention has the beneficial effects as follows: adopt processing wharf foundation by geotextile granular material pile, can accomplish not dredge or reduce the amount of dredging widely, this helps saving construction investment, accelerating construction progress, can guarantee workmanship simultaneously, and reduces the people and be the phenomenon of back-silting.
Description of drawings
Fig. 1 handles the harbour basis sectional schematic diagram that foundation trench is arranged for geotextile granular pile of the present invention;
Fig. 2 is the harbour basis sectional schematic diagram that geotextile granular pile of the present invention is handled no foundation trench;
Among the figure: 1-geotextile granular pile, 2-geotextile layer, 3-basis mattress layer, 4-first geogrids layer, 5-second geogrids layer, 6-reinforced concrete caisson or steel concrete square, 7-mud upper thread.
The specific embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with example, but the present invention not only is confined to the following examples.
Embodiment 1 (processing has the harbour basis of foundation trench):
The method of processing wharf foundation by geotextile granular material pile, it comprises the steps:
1) according to the wharf apron depth condition, basic engineering is not dredged;
2) in the scope that is not less than harbour basis length and width size, (grow up in the long 0m in harbour basis, be wider than in the scope of the wide 0m size in harbour basis) that (job practices of geotextile granular pile is seen Chinese patent application 200810197321.X to laying geotextile granular pile, and denomination of invention is: the method for processing soft foundation by earthwork fabric granular pile); The plane mode of laying out pile is a quadrangle, the stake footpath parameter 60cm of geotextile granular pile, the spacing of geotextile granular pile is 1.8m, and the stake of geotextile granular pile is long to be 3m, and the spacing of geotextile granular pile and stake are long can be calculated or test definite according to the stable of basis and distortion settlement request;
3) level is laid the layer of geotextile layer on the mud face of geotextile granular pile top bit, and the geotextile layer is one deck geotextiles;
4) lay basic mattress layer on the geotextile layer of having laid, the material of basic mattress layer is a coarse sand, and the thickness of foundation pad is 50cm;
5) basic mattress layer adopts tamping;
6) lay one deck geogrids layer (for one deck geo-grid) in closely knit basic mattress layer top, horizontal, the material of geogrids layer is a geo-grid;
7) on geogrids layer, lay prefabricated reinforced concrete caisson.
Embodiment 2 (processing has the harbour basis of foundation trench):
As shown in Figure 1, the method for processing wharf foundation by geotextile granular material pile, it comprises the steps:
1) according to the wharf apron depth condition, basic engineering is carried out shallow slot and is dredged, and the foundation trench dredging degree of depth is 240cm;
2) in the scope that is not less than harbour basis length and width size, (grow up in the long 1m in harbour basis, be wider than in the scope of the wide 1m size in harbour basis) that (job practices of geotextile granular pile is seen Chinese patent application 200810197321.X to laying geotextile granular pile 1, and denomination of invention is: the method for processing soft foundation by earthwork fabric granular pile); The plane mode of laying out pile is a quadrangle, the stake footpath parameter 100cm of geotextile granular pile, the spacing of geotextile granular pile is 2m, and the stake of geotextile granular pile is long to be 10m, and the spacing of geotextile granular pile and stake are long can be calculated or test definite according to the stable of basis and distortion settlement request;
3) level is laid layer of geotextile layer 2 on the mud face of geotextile granular pile top bit, geotextile layer 2 is the composite construction layer (cover one deck geo-grid on one deck geotextiles, or cover one deck geotextiles on one deck geo-grid) of one deck geotextiles and one deck geo-grid;
4) on the geotextile layer of having laid 2, lay basic mattress layer 3, the material of basis mattress layer 3 is a coarse sand, the thickness of foundation pad is 150cm, in basic mattress layer thickness (as shown in Figure 1), by every 50cm interlamellar spacing lay first geogrids layer 4 (for one deck geo-grid) apart from level, the material of first geogrids layer 4 is a geo-grid;
5) basic mattress layer adopts tamping;
6) lay one deck second geogrids layer 5 (for one deck geo-grid) in closely knit basic mattress layer top, horizontal, the material of second geogrids layer is a geo-grid;
7) lay prefabricated reinforced concrete caisson 6 on second geogrids layer 5.
Embodiment 3 (processing has the harbour basis of foundation trench):
As shown in Figure 1, the method for processing wharf foundation by geotextile granular material pile, it comprises the steps:
1) according to the wharf apron depth condition, basic engineering is carried out shallow slot and is dredged, and the foundation trench dredging degree of depth is 50cm;
2) in the scope that is not less than harbour basis length and width size, (grow up in the long 3m in harbour basis, be wider than in the scope of the wide 3m size in harbour basis) that (job practices of geotextile granular pile is seen Chinese patent application 200810197321.X to laying geotextile granular pile 1, and denomination of invention is: the method for processing soft foundation by earthwork fabric granular pile); The plane mode of laying out pile is a triangle, the stake footpath parameter 120cm of geotextile granular pile, the spacing of geotextile granular pile is 3m, and the stake of geotextile granular pile is long to be 30m, and the spacing of geotextile granular pile and stake are long can be calculated or test definite according to the stable of basis and distortion settlement request;
3) level is laid layer of geotextile layer 2 on the mud face of geotextile granular pile top bit, geotextile layer 2 is the composite construction layer (cover one deck geo-grid on one deck geotextiles, or cover one deck geotextiles on one deck geo-grid) of one deck geotextiles and one deck geo-grid;
4) on the geotextile layer of having laid 2, lay basic mattress layer 3, the material of basis mattress layer 3 is piece (broken) stone, the thickness of foundation pad is 200cm, and in basic mattress layer thickness, (is one deck geo-grid by every 100cm interlamellar spacing apart from level laying one deck first geogrids layer 4; The basis mattress layer is divided into two-layer up and down by first geogrids layer, two-layer up and down each 100cm), the material of first geogrids layer 4 is a geo-grid;
5) it is closely knit that basic mattress layer adopts quick-fried rammer;
6) lay one deck second geogrids layer 5 (for one deck geo-grid) in closely knit basic mattress layer top, horizontal, the material of second geogrids layer is a geo-grid;
7) lay prefabricated steel concrete square 6 on second geogrids layer 5.
Embodiment 4:
Substantially the same manner as Example 3, difference is: the thickness of foundation pad is 250cm, and level is laid 4 first geogrids layer 4 (by laying apart from level of every 50cm interlamellar spacing) in basic mattress layer thickness.
Embodiment 5 (the geotextile granular pile is handled the harbour basis of no foundation trench):
As shown in Figure 2, the method for processing wharf foundation by geotextile granular material pile is substantially the same manner as Example 2, does not just have foundation trench.
Claims (2)
1. the method for processing wharf foundation by geotextile granular material pile is characterized in that it comprises the steps:
1) according to the wharf apron depth condition, basic engineering is not dredged or is carried out shallow slot and dredge, and the foundation trench dredging degree of depth is not more than 250cm;
2) in the scope that is not less than harbour basis length and width size, lay geotextile granular pile (1); The plane mode of laying out pile is quadrangle or triangle, the stake footpath parameter 40～200cm of geotextile granular pile, and the spacing of geotextile granular pile is 0.4～5m, the stake of geotextile granular pile is long to be 1～30m;
3) level is laid layer of geotextile layer (2) on the mud face of geotextile granular pile top bit, and geotextile layer (2) is the composite construction layer of one deck geotextiles or one deck geotextiles and geo-grid;
4) go up laying basic mattress layer (3) at the geotextile layer of having laid (2), the material of basic mattress layer (3) is coarse sand or piece stone, and the thickness of foundation pad is 50～250cm;
5) basic mattress layer employing tamping or quick-fried rammer are closely knit;
6) lay one deck second geogrids layer (5) in closely knit basic mattress layer top, horizontal, the material of second geogrids layer is a geo-grid;
7) lay prefabricated reinforced concrete caisson or steel concrete square (6) on second geogrids layer (5).
2. the method for processing wharf foundation by geotextile granular material pile according to claim 1, it is characterized in that: in the described basic mattress layer, by per 50～100cm interlamellar spacing lay first geogrids layer (4) apart from level, the material of first geogrids layer (4) is a geo-grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100633198A CN101608457B (en) | 2009-07-27 | 2009-07-27 | Method for processing wharf foundation by geotextile granular material pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100633198A CN101608457B (en) | 2009-07-27 | 2009-07-27 | Method for processing wharf foundation by geotextile granular material pile |
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| CN101608457A true CN101608457A (en) | 2009-12-23 |
| CN101608457B CN101608457B (en) | 2012-06-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537603A (en) * | 2018-12-07 | 2019-03-29 | 天津大学 | A kind of novel backfill reinforcement means |
| CN111663493A (en) * | 2020-07-01 | 2020-09-15 | 交通运输部天津水运工程科学研究所 | Repairing and reinforcing method suitable for block wharf after foundation damage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200888A (en) * | 2007-06-26 | 2008-06-18 | 王继忠 | Construction method of composite foundation |
| CN101368383B (en) * | 2008-09-11 | 2010-04-14 | 中国科学院武汉岩土力学研究所 | Method for treating soft soil roadbed by artificial composite crust layer |
| CN101392527B (en) * | 2008-10-21 | 2010-10-06 | 冯守中 | Method for processing soft foundation by earthwork fabric granular pile |
-
2009
- 2009-07-27 CN CN2009100633198A patent/CN101608457B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537603A (en) * | 2018-12-07 | 2019-03-29 | 天津大学 | A kind of novel backfill reinforcement means |
| CN111663493A (en) * | 2020-07-01 | 2020-09-15 | 交通运输部天津水运工程科学研究所 | Repairing and reinforcing method suitable for block wharf after foundation damage |
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| Publication number | Publication date |
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| CN101608457B (en) | 2012-06-06 |
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Owner name: WUHAN GUANGYI TRANSPORTATION SCIENCE AND TECHNOLOG Free format text: FORMER OWNER: FENG SHOUZHONG Effective date: 20120929 |
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Free format text: CORRECT: ADDRESS; FROM: 200437 HONGKOU, SHANGHAI TO: 430074 WUHAN, HUBEI PROVINCE |
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Effective date of registration: 20120929 Address after: 430074 Hubei city of Wuhan province East Lake Dongxin Road Development Zone SBI Optics Valley Venture Street building 10 building A 2502-2503 Patentee after: Wuhan Guangyi Traffic Technology Co., Ltd. Address before: 200437, room 1, building 992, Lane 1403, East Sports Union Road, Shanghai, Hongkou District Patentee before: Feng Shouzhong |