The powerhouse of Laxiwa hydropower station is a lager cavern,where the in-situ stress is 10 to 30 MPa,belonging to high in-situ stress region.

Study on observations on underground pressure of special thick seam at full seam gateway in high stress area;

It is found in this paper that fractured zones of rock masses in high stress area are larger than those of others,but their horizontal displacement does not increase obviously.

Through comparative analysis, this paper expounds the feasibility of adopting roofbolt supporting technique in coal road of high stress areas, and introduces the forms, technical parameters and construction techniques of roofbolt support.

Practices on dynamic prevention and control of pressure bump in high stress zone of Sanhejian Mine;

According to research results,the working procedure to analysis of rock mass induced by mining based on microseismic monitoring technology in high-stress area is developed,which can provide a basis for safety of mine production.

Research of diamond weak combined bit for high geo-stress stratum drilling;

Dynamic emulation analysis on tunnel excavating effect in high geo-stress zone;

Xiabandi Water Control project is located at Pamirs,near an active seismic zone and within a high geo-stress area;for which the maximum embedded depth of the power tunnel is up to 1 400 m with the problem of high geo-stress.