Reinforcement processing method of soft foundation

A treatment method and weak foundation technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of failure to achieve the treatment purpose, high cost, long construction period, etc., achieve short construction period, increase foundation strength, and good effect Effect

Active Publication Date: 2011-04-13
HEBEI CONSTR & INVESTIGATION RES INST
View PDF6 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the construction foundation treatment technology, there are many ways to strengthen the soft soil foundation, including replacement cushion method, preloading method, CFG pile method, cement-soil mixing method, high-pressure jet grouting method, lime pile method, etc. These methods have th...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reinforcement processing method of soft foundation
  • Reinforcement processing method of soft foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] A coastal area has recently filled weak foundations. The surface layer ① of the site is mainly filled with silt, with a thickness of 1.70-2.30m; below it is ②silty soil, with a thickness of 1.60-3.30m; ③silty silty clay, with a thickness of 3.00-3.90m. Each soil layer has poor permeability and extremely low strength, making it difficult for construction machinery to enter. It is required that the characteristic value of the bearing capacity of the foundation after treatment is greater than 130kPa, and the treatment depth should reach the third layer of muddy silty clay, with a treatment depth of 8.0 meters. The processing method includes the following steps:

[0031] (1) Install the well point dewatering system and dewater

[0032] The well point dewatering system consists of well point pipes, water collection main pipes, and pumping equipment (vacuum pump + weir box). After drilling a well hole in soft soil by high-pressure water jetting, put the well point pipe int...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a reinforcement processing method of a soft foundation, comprising the following steps: (1) well-point dewatering system installation and drainage; (2) rolling-compaction dynamic consolidation; (3) sand (gravel) pile arrangement; and (4) forced ramming dynamic consolidation. In the invention, sand (gravel) piles, drainage and dynamic consolidations are organically combined based on the engineering properties of freshly dredger soft soil, thereby reaching implementation and processing effects on a freshly dredger soft soil foundation; the method has technical and economic advantages of short construction period, low construction cost, more than 8m of processing depth and good processing effect; and the method is suitable for freshly dredger soft soil, lake salinized soil and the like. The processed foundation can meet the requirement of general engineering construction.

Description

technical field [0001] The invention relates to a reinforcement treatment method for weak foundations, which is suitable for reinforcement of soft soil foundations such as newly dredged soft soil, lake saline soil, etc., and belongs to the technical field of civil engineering construction. Background technique [0002] In the construction foundation treatment technology, there are many ways to strengthen the soft soil foundation, including replacement cushion method, preloading method, CFG pile method, cement-soil mixing method, high-pressure jet grouting method, lime pile method, etc. These methods have their own disadvantages and limitations for dealing with soft foundations of newly dredged fill soils of recent alluvial, land reclamation and artificial lake excavation dredging and filling. Generally, it is manifested as high cost, long construction period, etc., and sometimes even fails to achieve the processing purpose. Therefore, finding a treatment method that can be ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02D3/02E02D3/10
Inventor 聂庆科李华伟刘利平吴立春孙运青董树巍韩辅洲
Owner HEBEI CONSTR & INVESTIGATION RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap