Infrastructure Department Chang'an University Xi'an 710054 China;
College of Geological Engineering and Surveying of Chang'an University Xi'an 710054 China;
Key Laboratory of Western China Mineral Resources and Geological Engineering Xi'an 710054 China;
College of Geological Engineering and Surveying of Chang'an University Xi'an 710054 China;
Key Laboratory of Western China Mineral Resources and Geological Engineering Xi'an 710054 China;
College of Geological Engineering and Surveying of Chang'an University Xi'an 710054 China;
Key Laboratory of Western China Mineral Resources and Geological Engineering Xi'an 710054 China;