|Table of Contents|

Calculation of Vertical Earth Pressure of Rigidity Structures Based on Two Shear Unified Strength Theory(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年01期
Page:
107-110
Research Field:
Publishing date:
2008-03-20

Info

Title:
Calculation of Vertical Earth Pressure of Rigidity Structures Based on Two Shear Unified Strength Theory
Author(s):
HUANG Ya-juan1; 2;  ZHAO Jun-hai1;  TIAN Wen-xiu1; 3
1. School of Architectural Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. Shanghai Xiandai Architectural Design Ltd, Shanghai 200041, China; 3. Electric Power Engineering Consulting Institute of Shandong Province, Jinan 250013, Shandong, China
Keywords:
vertical earth pressure;  two shear unified strength theory;  main stress in middle;  rigidity structure
PACS:
TU432
DOI:
-
Abstract:
Based on two shear unified strength theory,the vertical earth pressure for pipe groove was computed by considering the intermediate principal stress, and the unified solutions of vertical earth pressure of rigid structures were obtained. The unified solutions had the universality, which were either suitable to different materials of tension-compression strength, or suitable to same materials of tension-compression strength. The calculation results show that when tension-compression ratio is certain, with the filling thickness being deepening, the vertical earth pressure decreases with increasing of the intermediate principal stress coefficient, ie the effect of ditch wall friction of upward pressure on the pipe unloading is more obvious. The vertical earth pressure which is more suitable for soil properties is gained by using two shear unified strength theory, and brings the strength of materials into full play, as well as obtains the remarkable economic efficiency in the engineering applications.

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Last Update: 2008-03-20