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Method for processing wharf foundation by geotextile granular material pile

A technology of geotextiles and bulk piles, applied in the field of wharf foundation, can solve the problems of slow construction progress, high project cost, and secondary silting, and achieve the effects of speeding up construction progress, reducing dredging volume, and ensuring project quality

Active Publication Date: 2012-06-06
WUHAN GUANGYI ENG CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the underwater soft foundation of the wharf project is often thick, the amount of excavation and replacement of the foundation is often huge, so the construction progress is slow and the project cost is high, and the excavated silt is often easy to surge again with the tide and wind and waves after being dumped. Secondary silting caused by entering the harbor basin

Method used

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  • Method for processing wharf foundation by geotextile granular material pile
  • Method for processing wharf foundation by geotextile granular material pile
  • Method for processing wharf foundation by geotextile granular material pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 (handling the pier foundation that foundation groove is arranged):

[0021] A method for treating dock foundations with geotextile bulk piles comprises the following steps:

[0022] 1) According to the water depth conditions at the front of the wharf, the foundation design does not require dredging;

[0023] 2) Lay out geotextile loose piles within the range not smaller than the length and width of the wharf foundation (within the range where the length is 0m longer than the wharf foundation and the width is 0m larger than the wharf foundation width) (see China Patent application number 200810197321.X, the name of the invention is: method for treating soft foundation with geotextile bulk piles); the planar pile method is quadrilateral, the pile diameter parameter of geotextile bulk piles is 60cm, and the distance between geotextile bulk piles is 1.8 m, the pile length of the geotextile loose pile is 3m, and the distance and pile length of the geotextile lo...

Embodiment 2

[0029] Embodiment 2 (handling the pier foundation that foundation groove is arranged):

[0030] Such as figure 1 Shown, the method for processing dock foundation with geotextile bulk pile, it comprises the following steps:

[0031] 1) According to the water depth conditions at the front of the wharf, the foundation is designed to carry out shallow trench dredging, and the dredging depth of the foundation trench is 240cm;

[0032] 2) Lay out geotextile loose piles 1 within the range not smaller than the length and width of the wharf foundation (in the range where the length is 1m longer than the wharf foundation and the width is 1m wider than the wharf foundation) (for the construction method of the geotextile loose piles, see Chinese patent application number 200810197321.X, denomination of invention is: the method of geotextile bulk pile processing soft foundation); Plane pile mode is quadrilateral, the pile diameter parameter 100cm of geotextile bulk pile, the spacing of ge...

Embodiment 3

[0038] Embodiment 3 (processing the pier foundation that foundation groove is arranged):

[0039] Such as figure 1 Shown, the method for processing dock foundation with geotextile bulk pile, it comprises the following steps:

[0040] 1) According to the water depth conditions at the front of the wharf, the foundation design shall be dredged in shallow trenches, and the dredging depth of the foundation trench shall be 50cm;

[0041] 2) Within the range not smaller than the length and width of the wharf foundation (within the range where the length is 3m longer than the wharf foundation and the width is 3m larger than the wharf foundation width), the geotextile loose pile 1 is laid out (for the construction method of the geotextile loose pile, see Chinese patent application number 200810197321.X, denomination of invention is: the method of geotextile bulk pile processing soft foundation); Plane pile mode is triangular, the pile diameter parameter 120cm of geotextile bulk pile, ...

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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 geotextilelayer 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 [0001] The invention belongs to the field of civil engineering construction, and in particular relates to a method for processing dock foundations. Background technique [0002] At present, the design and treatment method for the foundation of gravity type wharf or buttress type wharf in port engineering is to dredge the foundation groove of the wharf foundation, and then replace the foundation groove with medium-coarse sand or block (broken) stone. After compaction by tamping, Place prefabricated reinforced concrete caissons or cubes and other structures on the surface of the replacement foundation to meet the requirements of reducing foundation settlement and ensuring foundation stability. However, because the underwater soft foundation of the wharf project is often thick, the amount of excavation and replacement of the foundation is often huge, so the construction progress is slow and the project cost is high, and the excavated silt is often easy to surge ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/52
Inventor 冯守中
Owner WUHAN GUANGYI ENG CONSULTING
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