Landslide Exploration in Wufeng Village, Tongling City, Anhui Province
Release time:
2024-05-25
The strata in the landslide area are mainly Wotong Formation (D3w). The lower section (D3w1) is 102m thick, and the lithology is light red and gray-white thick medium-thick interbedded gravelly sandstone, interbedded with thin quartz sandstone and argillaceous siltstone, with relatively complete rocks. The lithology of the upper section (D3w2) is mainly gray black shale (former Gaolishan Formation), medium-thin quartz sandstone interbedded with multi-layer thin-layered siltstone, silty shale and argillate interbeds. The joints and fissures are developed, the rocks are broken, the argillate interbeds are easy to be argillated when exposed to water, and the top is thin-layered sandy shale.
Landslide Exploration Site in Wufeng Village

The strata in the landslide area are mainly Wotong Formation (D3w). The lower section (D3w1) is 102m thick, and the lithology is light red and gray-white thick medium-thick interbedded gravelly sandstone, interbedded with thin quartz sandstone and argillaceous siltstone, with relatively complete rocks. The lithology of the upper section (D3w2) is mainly gray black shale (former Gaolishan Formation), medium-thin quartz sandstone interbedded with multi-layer thin-layered siltstone, silty shale and argillate interbeds. The joints and fissures are developed, the rocks are broken, the argillate interbeds are easy to be argillated when exposed to water, and the top is thin-layered sandy shale.
Construction parameters: a = 5m ,n1=n2=6,AB=n1a ,BM0=n2a; The power supply voltage is 600V, and the direction of the survey line is along the vertical landslide body.
Through the physical property information provided by the spectrum IP method and combined with the corresponding geological data, it is preliminarily inferred that the average thickness of the landslide is about 25m, the depth of the sliding interface is 30~40m, the type belongs to the deep large-scale rock landslide, and the landslide profile is stepped (imbibed).

Fig.1 Apparent resistivity ρsContour of proposed section

Fig.2 Apparent charging rate msContour of proposed section

Fig.3 Apparent time constant tsContour of proposed section

Figure 4Video rate correlation coefficient csContour of proposed section
