2012, Volume 14, Issue 11
Strategic Study of CAE >> 2012, Volume 14, Issue 11
The impact on expensive soil characteristics with different dosages of weathered sand of a highway in Yichang
1. Civil and Architectural Institute, China Three Gorges University, Yichang, Hubei 443002, China;
2. Hongyuan Highway Engineering Supervision and Advisory Limited Liability Company of Yichang City, Yichang, Hubei 443002, China;
3. Yichang Transport Bureau, Yichang, Hubei 443002, China;
4. First-Class Highway Rebuilding Engineering Project From Xiaoxita to Yaqueling of Yichang City, Yichang, Hubei 443002, China
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Abstract
Aiming at widespread presence of expansive soil which canbe obtained in the project from Xiaoxita to Yaqueling first-class highway rebuilding engineering in Yichang City of Hubei Province and weathered sand which can be made full use of locally, many experiments were made. Compaction experiments and expansibility index indoor experiments of undisturbed expansive soil and expansive soil mixed with sand range from 10 % to 50 % were made. Through the test of undisturbed expansive soil mixed with different content of weathered sand, it was found that undisturbed expansive soil mixed with weathered sand can change the expansive soil water characteristics and compaction characteristics. Undisturbed expansive soil mixed with different content of weathered sand can influence the expansibility of the expansive soil index and significantly inhibit the expansibility of the expansive soil and reach the standard of roadbed filler.
Keywords
xpansive soil ; weathered sand ; expansion indicator ; compaction test
References
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