Working Experiences of Hydrogeology for North Tianshan Mountain Summit Tunnel;

In some mountainous countryside of China where the rivulets wander through,the stones on the riv- er-related lands have been rapt without restraint.

But with the highway construction extending to mountainous areas, the situation that spall soil of different spall content as the main filling of roadbed appearing, phenomenon of road surface split occasionally occurring in some new project because of spall soil roadbed unhomogeneous settlemen.

Oriented structures in Yuechengling granite pluton;