Stability Analysis and Support Design Methods for Rock Foundation Pit with Combination of Structural Plane and Karst Cave

Table 3

Geotechnical parameters of the earth.

Layer	Earth type	Layer thickness	Specific weight	Cohesion	Internal friction angle
		(m)	(kN/m^3)	(kPa)	(°)
1	Miscellaneous fill	2.00	19.5	0.00	15.00
2	Moderately weathered rock	40.00	26.8	130.00	30.00