A hill slope failure analysis: A case study of Malingoan village, Maharashtra, India

Figures & data

Figure 1. Study area map location of Malingaon with respect to India and Maharashtra. It also shows present topography of Malingaon in Pune district

Figure 2. Cross section of Malingaon hill, showed a critical three zones of land slide and gradient study area

Table 1. Results of soil properties

Sr. no.	Properties of soil	Standard	Result
1	Specific gravity of Soil	IS 2720: part 3	1.94
2	Bulk density of soil	IS 2720: parts 7 and 8	0.62 g/cm^3
3	Dry density of soil	IS 2720: parts 7 and 8	0.05 g/cm^3
4	Liquid limit of soil	IS 2720: part 5	30%
5	Plastic limit	IS 2720: part 5	14%
6	Plasticity Index	IS 2720: part 5	16%
7	Cohesion	Direct shear test	0.42 kg/cm^2
8	Internal friction angle	Direct shear test	18.52°

Table 2. Field test results for three regions on hill slope

	Specific gravity	Water content	Dry density	Liquid limit	Plastic limit	Plasticity Index	Cohesion	Internal friction
Sample no.	SG	WC (%)	DD (g/cc)	LL (%)	PL (%)	PI	C (kg/cm^2)	ɸ (°)
Low	2.8	36.43	1.35	52.5	31.75	20.75	0.13	4.35
	2.3	35.18	1.29	51.5	29.09	22.41	0.13	4.22
	2.05	38.13	1.32	50.5	28.3	22.2	0.13	4.37
Middle	2.25	25.32	1.38	49	33.8	15.2	0.41	11.58
	1.92	28.96	1.34	52	28.56	23.44	0.44	12.3
	2.35	27.98	1.37	49.5	27.36	22.14	0.39	10.88
Top	2.38	40.32	1.18	45.5	32.35	13.15	0.42	38.18
	2.19	39.35	1.29	46.5	28.65	17.85	0.43	42.25
	2.25	37.56	1.26	52.5	27.88	24.62	0.42	36.4

Figure 3. Land use land cover map of Malingaon before occurrence of landslide in year 2014 (a and b). Land use land cover map of Malingaon after occurrence of landslide in year 2014 (c and d)