Research on the Technology of Plugging Gushing Water in the Vertical Shaft under Complicated Conditions

Table 5

Lithological physical and mechanical parameters.

Lithology	Thickness (m)	Shear modulus (GPa)	Bulk modulus (GPa)	Cohesion (MPa)	Internal friction angle (°)	Tensile strength (MPa)	Density (kg·m^-3)
Humus	2.26	0.13	0.58	1.20	15	0.82	1800
Clay	108.00	0.15	0.44	2.82	18	0.82	1850
Gravel grit	91.25	0.07	0.15	0.00	32	0.82	2000
Coarse sand	31.53	0.14	0.23	0.01	40	0.82	2200
Fine sand	32.64	0.07	0.14	0.00	35	0.82	2000
Silty clay	3.84	0.21	0.79	1.50	18	0.82	1800
Sandy clay	20.19	12.40	17.24	2.52	25	0.82	2200
Siltstone	9.57	19.12	24.46	9.60	31	4.31	2545
Mudstone	36.42	1.86	2.96	1.50	22	0.55	2100
Medium sandstone	10.85	0.79	1.52	2.20	25	0.60	1400
Fine sandstone	134.69	25.84	33.06	12.00	34	6.12	2700
Magmatic rock	16.23	31.01	39.68	14.40	40.8	7.34	2700