|Table of Contents|

Analysis on tipping soil thickness of coal gangue subgrade under freeway(PDF)

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

Issue:
2011年01期
Page:
22-25
Research Field:
Publishing date:
2011-02-28

Info

Title:
Analysis on tipping soil thickness of coal gangue subgrade under freeway
Author(s):
LEI Jian1;  WANG Chao-hui1;  GAO Zhi-wei1;  SHEN Wen-sheng2;  WANG Xuan-cang1
1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China;
2. Department of Transportation, Handan City Government, Handan 056002, Hebei, China
Keywords:
road engineering;  tipping soil thickness;  coal gangue roadbed;  finite element
PACS:
U416.1
DOI:
-
Abstract:
To determine the reasonable tipping soil thickness of coal gangue subgrade, through analyzing the process of building coal gangue subgrade, a simplified finite element model of gangue subgrade tipping soil is developed. The influence law of the different tipping soil thickness on coal gangue subgrade tipping soil vertical side within the maximum compressive stress and vertical maximum shear stress is analyzed. The influence degree of tipping soil thickness on coal gangue subgrade center settlement, edge settlement of tipping soil and coal gangue roadbed, differential settlement of tipping soil and the subgrade maximum differential settlement is studied. The results show that: both the maximum vertical compressive stress and the maximum vertical sheer stress increase with the increasing of tipping soil thickness when the embankment height is identical; while the embankment height was less than 5 m, the influence of tipping soil thickness on internal force is relatively small; the influence of tipping soil thickness on coal gangue subgrade center settlement, edge settlement of tipping soil and coal gangue roadbed is relatively small; the influence on differential settlement of tipping soil is relatively lager, differential settlement increases with the increase of tipping soil thickness, however, all the differential settlements are less than 1.5 cm. 6 tabs, 5 figs, 10 refs.

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Memo

Memo:
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Last Update: 2011-02-28