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

Method for reducing side load influence

A technology of side load and side wall, applied in the direction of excavation, filling, water conservancy projects, etc., can solve the problems of increasing tensile force on the top surface of the bottom plate and uneven settlement, etc., and achieve the effect of eliminating the impact.

Active Publication Date: 2012-07-04
SHANGHAI INVESTIGATION DESIGN & RES INST
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) The vertical side load caused by the self-weight of the filling soil causes the tensile force on the top surface of the bottom slab to increase significantly
[0006] (4) The vertical side load of the fill drives the settlement of the adjacent soil, causing the settlement of the structure on the side adjacent to the soil to be greater than the settlement of the structure on the side away from the fill, resulting in uneven settlement
[0007] (5) The vertical side load of the filling will cause negative frictional resistance to foundation piles on underconsolidated soil and weak soil, which will bring many unfavorable factors

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
  • Method for reducing side load influence
  • Method for reducing side load influence
  • Method for reducing side load influence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] combine figure 1 The method for reducing the influence of side loads involved in the present invention will be further described. figure 1 It is a schematic diagram of construction using this method. This method is carried out successively as follows:

[0025] (1) Normal grading excavation of foundation pit (see figure 1 middle excavation face 11);

[0026] (2) At the position close to the side wall of the main structure 13, backfill soil is constructed in advance to form an approximate vertical slope 12;

[0027] (3) main structure 13 construction;

[0028] (4) The gap between the structural side wall and the vertical slope is filled ( figure 1 The middle is backfill soil 14).

[0029] In the past, the construction of backfill soil is usually carried out after the construction of the main structure, but in this invention, the backfill soil should be done before the construction of the main structure, the earlier the better, so that the preloading of the foundatio...

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 method for reducing a side load influence, which is characterized by comprising the following steps: (1) carrying out foundation pit slope setting excavation; (2) performing backfill construction in advance close to the position of a main body structure side wall, and forming an approximately vertical side slope; (3) carrying out main body structure construction; and (4) filling gaps between the structure side wall and the vertical side slope. In the prior art, backfill construction is usually performed after the main body structure construction, while the method for reducing the side load influence enables the backfill construction to be performed prior to the main body structure construction so as to form prepressing to foundation soil and reduce and even substantially eliminate the influence of a vertical side load. Besides, due to the fact that the vertical side slope is self-stabilized, soil pressure on structure side wall is extremely small, and the whole construction scheme is economical, convenient, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for reducing the influence of side loads by backfilling underground structures after excavation. Background technique [0002] At present, for sluices, pumping stations, retaining walls or other underground structures, the foundation pit excavation method often adopted is large excavation on slopes, and backfilling is carried out after the main structure is completed. Compared with other maintenance excavation methods, the large excavation method of foundation pit has the advantages of convenient construction and low investment, but it often brings the following disadvantages to the structure: [0003] (1) The filling soil produces a large horizontal earth pressure on the side wall of the structure. [0004] (2) The vertical side load caused by the self-weight of the filling soil causes the tensile force on the top surface of the bottom slab to increase signif...

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): E02D17/02E02D17/18E02D17/20E02D29/045
Inventor 万里飘米有明刘勇沈波
Owner SHANGHAI INVESTIGATION DESIGN & RES INST
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