作者单位:Chen Bing,Zhang Minghong(Chengdu Geological Exploration and Geotechnical Engineering Limited Liability Company of China Railway Eryuan Engineering Goup, Chengdu 610031, China)陈兵,张明红(中铁二院成都地勘岩土工程有限责任公司,四川 成都610031)Zhang Yan(College of Earth Science, Chengdu University of Technology, Chendu 610059, China)张燕(成都理工大学地球科学学院,四川 成都610059)