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

Analysis method for estimating bearing capacity of pile foundation on basis of penetration technology

An analysis method and technology of bearing capacity, applied in foundation structure test, foundation structure engineering, construction, etc., can solve problems that cannot reflect the bearing characteristics of pile foundation

Inactive Publication Date: 2012-07-18
CHINA RAILWAY DESIGN GRP CO LTD
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cone tip resistance obtained from the existing static penetration test and side friction There are differences between the test mechanism and the bearing mechanism of pile foundations, and the existing method of estimating the bearing capacity of pile foundations using penetrating sounding technology is based on statistical regression analysis, which can only estimate the ultimate bearing capacity of pile foundations, and cannot reflect the pile foundation under different loads. Bearing characteristics

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
  • Analysis method for estimating bearing capacity of pile foundation on basis of penetration technology
  • Analysis method for estimating bearing capacity of pile foundation on basis of penetration technology
  • Analysis method for estimating bearing capacity of pile foundation on basis of penetration technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The analysis method for estimating the bearing capacity of pile foundation based on penetrating technology of the present invention will be described below with reference to the accompanying drawings and specific embodiments.

[0020] The analysis method for estimating the bearing capacity of a pile foundation based on penetrating technology in this embodiment includes the following steps:

[0021] S1: Use double-bridge static penetration testing equipment to carry out static penetration testing. When the probe penetrates into the middle of the i-th layer of soil, the penetration is suspended, unloaded and the soil pore water pressure at the cone tip of the probe is dissipated for 30 minutes; Afterwards, apply a force gradually increasing from zero to the probe rod at a slow constant loading rate (10-200 N / s) until the soil at the probe site is penetrated and damaged. Measure the distance between the probe and the soil under this condition. Cone tip resistance and side ...

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 an analysis method for estimating bearing capacity of a pile foundation on the basis of penetration technology. The analysis method includes following steps: S1, measuring cone tip resistance qc and side friction fs corresponding to different relative deformations between a probe and soil; S2, extracting pile end resistance and pile side friction corresponding to relative deformations between different soil piles with different soil properties and the soil; S3, building an empirical equation for the pile end resistance qc and the pile side friction corresponding to the different relative deformations between the different soil piles and the soil and the cone tip resistance and the side friction corresponding to the different relative deformations between the corresponding soil probe and the soil; S4, reversely solving a pile foundation load and settlement curve of a corresponding field according to the empirical equation obtained in the S3 ; and S5, analyzing the type of the pile foundation load and settlement curve obtained in the S4 and determining bearing capacity of the pile foundation. The analysis method for estimating bearing capacity of the pile foundation on the basis of the penetration technology is a novel method, is clear in implementation and simple, convenient and visual in application, and has good practicality.

Description

technical field [0001] The invention relates to an analysis method for estimating the bearing capacity of a pile foundation based on penetrating technology, and belongs to the field of in-situ test application research of geotechnical engineering. Background technique [0002] Existing methods for estimating the bearing capacity of pile foundations using penetrating sounding technology are to use the pile end resistance and pile side frictional resistance obtained from the vertical compressive static load test of the pile foundation and the cone tip resistance obtained from the static sounding test respectively. and side friction A statistical regression formula is established between them, and the bearing capacity of the pile foundation is directly estimated according to the empirical formula obtained from the statistical regression. [0003] Cone tip resistance obtained by static penetrating method and side friction resistance are the resistance of the surrounding soi...

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): E02D33/00
Inventor 李鹏侯占林李国和许再良
Owner CHINA RAILWAY DESIGN GRP CO LTD
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