|Table of Contents|

Experiment on engineering characteristics of soft clay on expressway widening foundation(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年03期
Page:
37-42
Research Field:
Publishing date:
2009-06-20

Info

Title:
Experiment on engineering characteristics of soft clay on expressway widening foundation
Author(s):
SHU Yang1; 2; MENG Qing-shan3; SHU Si-qi4
1.School of Civil Engineering,Tianjin University,Tianjin 300072,China;2.Lianyungang Bureau of Construction,Lianyungang 222003,Jiangsu,China;3.Key Laboratory of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430071,Hubei,China;4.Department of Mechanical Engineering,The Hongkong Polytechnic University,Hongkong 999077,China
Keywords:
road engineering;  expressway;  widening;  soft clay foundation
PACS:
U412.22
DOI:
-
Abstract:
The physical and mechanical characteristics of the new and the old foundation soft soil were completed to make the expressway widening deformation uniformly. Triaxial shear test and direct shear test in the laboratory were carried out and their comparison tests were analyzed. The results show that the old foundations consolidation degree and mechanical properties are better than new foundations because of deformation after many years of consolidation. The cohesion of the old foundation is larger than the new ones, but the angle of internal friction is smaller than new foundations. In general, the old foundations shear strength is larger than the new foundations shear strength. The shear strength obtained from direct shear test is smaller than that obtained from triaxis test. It is instructed that when dealing with the soft part of the new foundation, some tough measures of controlling the settlement should be adopted to make the deformation uniformly. 4 tabs, 10 figs, 19 refs.

References:

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Last Update: 2009-06-20