Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Long-short plastic drainage plates-combined secondary vacuum preloading foundation processing method

A plastic drainage board and secondary vacuum technology, which is applied in the field of foundation treatment and soft soil foundation, can solve the problems of increased construction cost, long treatment time, and unsatisfactory engineering practical application.

Inactive Publication Date: 2011-10-19
河北晟港工程勘察设计有限公司
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process needs to be able to solve practical construction problems, but the shallow drainage boards used in the early construction process are discarded, resulting in a large increase in construction costs and often longer processing time, which cannot meet the needs of practical engineering applications

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
  • Long-short plastic drainage plates-combined secondary vacuum preloading foundation processing method
  • Long-short plastic drainage plates-combined secondary vacuum preloading foundation processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Shallow short drainage board pretreatment

[0013] ⑴. The field is leveled by machinery, and the flatness reaches 5‰.

[0014] (2) Lay a layer of woven cloth; if dealing with ultra-soft ground, arrange 200-300g geotextiles, and use plastic foam wrapped in filter membranes as artificial enclosures.

[0015] ⑶. Carry out the construction of the longitudinal drainage body, calculate and determine the spacing and depth of the plastic drainage boards and the specifications and models of the drainage boards used according to the geological conditions. The exposed length of the plastic drainage board is determined according to the spacing, generally 40-60cm, and the head of the board and the wrapped filter cloth are required to be complete and even, and there must be no mud ingress.

[0016] ⑷. For the setting of the horizontal drainage system, the thickness is 4.0±0.2mm, the width is 100±2mm, the vertical water flow is ≥60cm3 / s, the permeability is ≥5×10-3cm / s, and the equiv...

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 provides a long-short plastic drainage plates-combined secondary vacuum preloading foundation processing method, which comprises the following main steps of: laying geotextile or woven cloth on the surface of a foundation to be processed; arranging shallow longitudinal short plastic drainage plates in a striking manner; arranging a transverse drainage system for the short plastic drainage plates; laying a vacuum sealing membrane; removing water and gas in the transverse drainage body for the short plastic drainage plates by using a vacuum pump; stripping away the vacuum sealing membrane; arranging deep longitudinal long plastic drainage plates in a striking manner; arranging a transverse drainage system for the long plastic drainage plates; laying a vacuum sealing membrane; and synchronously removing the water and gas in the transverse drainage systems for the long and the short plastic drainage plates by using the vacuum pump. By using the technology, an early-stage shallow preloading system and later-stage deep processing are organically combined, the time for solidification of foundation soil is shortened, the effect of reinforcing is enhanced, and a fast and efficient construction process is realized.

Description

technical field [0001] The invention relates to a ground treatment technology, which is mainly applicable to soft ground and belongs to the field of geotechnical engineering. Background technique [0002] Large-scale land reclamation projects and coastal zone development projects along the coast of my country are booming. Coastal areas such as Dalian, Tianjin, Jiangsu, Zhejiang, and Guangdong are all reclaiming land from the sea on a large scale. These areas are mostly silty soft soils with high water content and high compressibility. my country's rapidly developing economic construction urgently needs fast, efficient, energy-saving and environmentally friendly soft ground treatment technology. The vacuum preloading technology developed in the mid-1980s has been developed and continuously improved for nearly 20 years. It has developed from a single vacuum preloading method to combined vacuum preloading, vacuum combined water-covering treatment, low-level vacuum preloading...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10
Inventor 潘秉忠谭再坤杨耀明景本玉
Owner 河北晟港工程勘察设计有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com