国家自然科学基金资助项目51478052;长沙理工大学特殊环境道路工程湖南省重点实验室开放基金资助项目kfj150501Project51478052 supported by the National Natural Science Foundation of China;Projectkfj150501 supported by Open Fund of Key Laboratory of Special Environment Road Engineering of Hunan Province, Changsha University of Science&Technology