CN101608457B - Method for processing wharf foundation by geotextile granular material pile - Google Patents
Method for processing wharf foundation by geotextile granular material pile Download PDFInfo
- Publication number
- CN101608457B CN101608457B CN2009100633198A CN200910063319A CN101608457B CN 101608457 B CN101608457 B CN 101608457B CN 2009100633198 A CN2009100633198 A CN 2009100633198A CN 200910063319 A CN200910063319 A CN 200910063319A CN 101608457 B CN101608457 B CN 101608457B
- Authority
- CN
- China
- Prior art keywords
- layer
- geotextile
- foundation
- pile
- laid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention belongs to the civil engineering construction field, in particular to a method for processing wharf foundation. The method for processing wharf foundation by a geotextile granular material pile is characterized in that the method comprises the following steps: (1) according to the water depth condition of the wharf apron, at the stage of the foundation design, dredging is not carried out or shallow slot dredging is carried out; (2) the geotextile granular material pile is laid in the range not less than the length and width size of the wharf foundation; (3) a layer of geotextile layer is horizontally laid on the mud level of the top of the geotextile granular material pile; (4) a foundation pillow layer is laid on the laid geotextile layer; (5) the foundation pillow layer adopts heavy tamping or explosion tamping; (6) a layer of second geogrid layer is horizontally laid on the top of a close-grained foundation pillow layer; (7) a precasted reinforced concrete caisson or a reinforced concrete square block is laid on the second geogrid layer. The method can save construction investment, accelerates construction process and reduces artificial accretion phenomenon.
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, reduce foundation settlement and the requirement that guarantees base fixed to reach.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 is prone to pour in basin once more with tide and stormy waves after throwing and causes 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 practiced thrift 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 (the long 0～3m that grows up in the harbour basis, be wider than in the scope of the wide 0～3m size in harbour basis) (job practices of geotextile granular pile is seen one 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 can be calculated or test definite according to the stable of basis and distortion settlement request with stake is long;
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 GSZ;
4) on the geotextile layer of having laid 2, lay basic mattress layer 3, 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 GSZ;
7) lay prefabricated reinforced concrete caisson or steel concrete square 6 on second geogrids layer 5.
In the said basic mattress layer, be GSZ 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 said 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 practicing thrift 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 instance, but the present invention not only is confined to following embodiment.
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 (the long 0m that grows up in the harbour basis, be wider than in the scope of the wide 0m size in harbour basis) (job practices of geotextile granular pile is seen one 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 can be calculated or test definite according to the stable of basis and distortion settlement request with stake is long;
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) on the geotextile layer of having laid, lay basic mattress layer, 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 GSZ) in closely knit basic mattress layer top, horizontal, the material of geogrids layer is a GSZ;
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 (the long 1m that grows up in the harbour basis, be wider than in the scope of the wide 1m size in harbour basis) (job practices of geotextile granular pile is seen one 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 can be calculated or test definite according to the stable of basis and distortion settlement request with stake is long;
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 GSZ on one deck geotextiles, or cover one deck geotextiles on one deck GSZ) of one deck geotextiles and one deck GSZ;
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 GSZ) apart from level, the material of first geogrids layer 4 is a GSZ;
5) basic mattress layer adopts tamping;
6) lay one deck second geogrids layer 5 (for one deck GSZ) in closely knit basic mattress layer top, horizontal, the material of second geogrids layer is a GSZ;
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 (the long 3m that grows up in the harbour basis, be wider than in the scope of the wide 3m size in harbour basis) (job practices of geotextile granular pile is seen one 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 can be calculated or test definite according to the stable of basis and distortion settlement request with stake is long;
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 GSZ on one deck geotextiles, or cover one deck geotextiles on one deck GSZ) of one deck geotextiles and one deck GSZ;
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 GSZ 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 GSZ;
5) it is closely knit that basic mattress layer adopts quick-fried rammer;
6) lay one deck second geogrids layer 5 (for one deck GSZ) in closely knit basic mattress layer top, horizontal, the material of second geogrids layer is a GSZ;
7) lay prefabricated steel concrete square 6 on second geogrids layer 5.
Embodiment 4:
Basic identical with embodiment 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 and embodiment 2 are basic identical, just do not have foundation trench.
Claims (1)
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 GSZ;
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; 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 GSZ;
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 GSZ;
7) lay prefabricated reinforced concrete caisson or steel concrete square (6) on second geogrids layer (5).
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101608457A CN101608457A (en) | 2009-12-23 |
| CN101608457B true CN101608457B (en) | 2012-06-06 |
Family
ID=41482355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100633198A Active CN101608457B (en) | 2009-07-27 | 2009-07-27 | Method for processing wharf foundation by geotextile granular material pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101608457B (en) |
Families Citing this family (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 |
Citations (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 |
| CN101368383A (en) * | 2008-09-11 | 2009-02-18 | 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 |
| CN101392527A (en) * | 2008-10-21 | 2009-03-25 | 冯守中 | Method for processing soft foundation by earthwork fabric granular pile |
-
2009
- 2009-07-27 CN CN2009100633198A patent/CN101608457B/en active Active
Patent Citations (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 |
| CN101368383A (en) * | 2008-09-11 | 2009-02-18 | 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 |
| CN101392527A (en) * | 2008-10-21 | 2009-03-25 | 冯守中 | Method for processing soft foundation by earthwork fabric granular pile |
Non-Patent Citations (1)
| Title |
|---|
| 杨奇.锦州笔架山南岸旅游码头基础设计方案比选.《水运工程》.2003,(第12期),40-41. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101608457A (en) | 2009-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203603105U (en) | Wall plate type ecological retaining wall bank protection structure | |
| CN102011391A (en) | Reinforcement processing method of soft foundation | |
| CN104612179B (en) | Through the construction method of the diaphram wall of super thick silty sand ground | |
| CN103233444B (en) | Underwater dumped rockfill bedding and side slope Anti-scouring structure and construction method thereof | |
| CN104711967A (en) | Method for carrying out combined vacuum preloading treatment on soft foundation by gravel piles | |
| CN106759133A (en) | The mixing structure of dam type and construction method of a kind of homogeneous earth and rockfill dam and rock | |
| CN215669631U (en) | Deep overburden foundation structure | |
| CN202865796U (en) | Bank protection structure with reinforced concrete prefabricated slab piles | |
| CN101285302B (en) | Method for reinforcing caisson of concrete dam | |
| CN108824412A (en) | Based on gabion wall reinforced earth and strong tamping combined soft base processing method | |
| CN101608457B (en) | Method for processing wharf foundation by geotextile granular material pile | |
| CN103276717B (en) | The method of composite earthwork synthetic materials reinforcement cushion soft soil foundation | |
| CN111335263B (en) | Method for building artificial island | |
| CN208949902U (en) | A kind of river channel bridge bearing platform foundation pit antiseepage cofferdam | |
| CN215976663U (en) | Excavation area composite foundation treatment structure crossing under high-voltage line | |
| CN207228038U (en) | The countermeasure system of large-scale Dumping Sites in a kind of debris flow gully | |
| CN103821106B (en) | Small-sized fishing port and channel revetment structure | |
| CN209760216U (en) | reinforcement system based on soft soil foundation drainage consolidation | |
| CN202577341U (en) | Pipe section foundation of large-scale immersed pipe tunnel | |
| CN203188174U (en) | Underwater riprap foundation bed and side-slope erosion prevention structure | |
| CN102182867B (en) | Method for laying ore pulp pipelines in quicksand bed section | |
| CN204875665U (en) | A power station tailrace barricade that is used for medium thickness sand gravel basis | |
| CN216515549U (en) | Water conservancy energy dissipation scour protection structure suitable for silt nature ground | |
| CN108611941A (en) | A method of for being saturated high-fill roadbed processing | |
| CN203755241U (en) | Small fishing port and riverway revetment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN GUANGYI TRANSPORTATION SCIENCE AND TECHNOLOG Free format text: FORMER OWNER: FENG SHOUZHONG Effective date: 20120929 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200437 HONGKOU, SHANGHAI TO: 430074 WUHAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
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 |