A Numerical Study of Underground Cavern Stability by Geostress Characteristics

Table 2

Mechanical parameters of underground cavern in large-scale hydropower station in China.

Number	Project	Parameters
		(GPa)	(m)		(kN/m^3)
1	Lu Buge	28.0	225	1.3	27.0
2	Xi Luodu	18.0	350	1.0	27.0
3	Er’tan	30.0	350	2.5	27.0
4	Da Gangshan	13.0	400	1.0	26.2
5	Shuang-Jiangkou	15.0	430	1.5	26.5

Note: : Young’s modulus.
: burial depth.
: horizontal pressure coefficient.
: volume weight of rock.