|Table of Contents|

Saltexpansion laws of coarsegrained salty soil in road subgrade(PDF)

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

Issue:
2009年01期
Page:
20-25
Research Field:
Publishing date:
2009-01-20

Info

Title:
Saltexpansion laws of coarsegrained salty soil in road subgrade
Author(s):
ZHANG Shasha1;  YANG Xiaohua1;  XIE Yongli1;  DAI Zhiren2
1. School of Highway, Changan University, Xian 710064, Shaanxi, China; 2. School of Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
road engineering;  coarsegrained salty soil;  uniform design;  saltexpansion
PACS:
U416.166
DOI:
-
Abstract:
In order to research characteristics of saltexpansion and the applicability of coarsegrained salty soil in road subgrade, the saltexpansion experiment for coarsegrained salty soil was carried out by uniform design under different conditions of water content, salt content, temperature and pressure. The results show that: the main factors of influencing deformation properties of coarsegrained salty soil are water content and salt content; the amount of saltexpansion is increased gradually with the increasing of water content and salt content; the cover load has strong inhibitory effect on saltexpansion; the coarsegrained salty soil may produce soil shrinkage in cooling process; the salt content of starting saltexpansion is 0.2%; the temperature range of starting saltexpansion is from 5 ℃ to 0 ℃; the sensitive temperature range of saltexpansion is from 0 ℃ to -5 ℃. 7 tabs, 10 figs, 7 refs.

References:

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Memo

Memo:
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Last Update: 2009-01-20