Construction method for reinforcing pile-soil composite foundation

A composite foundation and construction method technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of deformation exceeding the allowable value and insufficient bearing capacity of composite foundation, and achieve excellent applicability, significant economy, and improved work performance effect

Pending Publication Date: 2021-06-18
XIAN TECHNOLOGICAL UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for reinforcing the pile-soil composite foundation, so as to solve the problem of insufficient bearing capacity of

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
  • Construction method for reinforcing pile-soil composite foundation
  • Construction method for reinforcing pile-soil composite foundation
  • Construction method for reinforcing pile-soil composite foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] The invention discloses a construction method for reinforcing a pile-soil composite foundation, which consists of the following steps:

[0050] Calculate the centroid position of the soil between the minimum unit piles according to the pile arrangement form of the pile-soil composite foundation,

[0051] Utilize Luoyang shovel to dig out grouting hole 7 at the centroid position of soil body between piles, guarantee that grouting hole 7 is vertically offered, and the radius of grouting hole 7 is 10-15cm; The depth of grouting hole 7=(2 / 3 -1)*The length of the pile in the pile-soil composite foundation;

[0052] Put the grouting pipe 2 of the grouting system vertically into the center of the grouting hole 7, and reach the bottom of the grouting hole 7,

[0053] Put the packing 3 around the outer wall of the grouting pipe 2 in the grout...

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

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Login to view more

Abstract

The invention discloses a construction method for reinforcing a pile-soil composite foundation. The method includes the steps that a centroid position of a soil body between minimum unit piles is calculated according to a pile arrangement form of the pile-soil composite foundation, a grouting hole is dug in the centroid position of the soil body between the piles by utilizing a Luoyang shovel, and the situation that the grouting hole is vertically formed is ensured; a grouting pipe of a grouting system is vertically placed in the center of the grouting hole and directly reaches the bottom of the grouting hole, packing is placed in the grouting hole around the outer wall of the grouting pipe for sealing, and the grouting hole is divided into an upper half portion and a lower half portion through the packing; and the upper half portion of the grouting hole is backfilled, the grouting system is started to conduct self-permeation grouting of water glass or alkali liquor into the grouting hole, and a small pile reinforcing body is formed, so that the pile-soil composite foundation is reinforced by the small pile reinforcing body. According to the construction method for reinforcing the pile-soil composite foundation, on the premise that loess collapsibility is not eliminated, the pile spacing of existing plain concrete piles is kept unchanged, and the small pile reinforcing body is formed at the center of the soil body between the piles by adopting the simple, convenient and low-cost method, so that the working performance of the composite foundation is effectively improved.

Description

technical field [0001] The invention belongs to the field of pile-soil composite foundation reinforcement, and in particular relates to a construction method for reinforcing pile-soil composite foundations. Background technique [0002] The stress state and collapsibility characteristics of the soil between the piles in the self-weight collapsible loess site are different from those in the natural site. After the loess between the piles is immersed in water, the subsidence occurs, and the vertical stress is affected by the sharing effect of the piles and the negative friction resistance. The process of soil collapsibility between piles is accompanied by the decrease of vertical pressure, which belongs to unloading collapsibility. Therefore, in the self-weight collapsible loess site, the soil between the piles of the composite foundation, the soil between the cast-in-situ piles and the soil between the prefabricated piles all have the problem of unloading collapsibility. Acc...

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): E02D3/00E02D3/08E02D3/12
CPCE02D3/00E02D3/08E02D3/12
Inventor 金鑫王铁行邱子涵
Owner XIAN TECHNOLOGICAL UNIV
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