Landslide investigations, southern Cianjur Regency, West Java Province, Indonesia; a progress report
Open-File Report
83-597
By: John R. Ege
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Abstract
Two landslide-monitoring sites have been established for a minimum 2-year investigation near the villages of Pasirpari and Cibacang in southern Cianjur Regency, West Java, Indonesia. Surveyed-in lines will measure amounts of surface movement and tilt, borings that produced exploratory cores now serve as slip-surface detectors and open-pipe piezometers, and rain gages will record rainfall at both sites.
Exploratory cores and field observations located upper slip surfaces ranging in depth between 4 and 14 m. Rises of borehole-water levels of as much as 63 cm during drilling suggest that pore pressures exist at the inferred-slip surfaces. Sliding along slip surfaces and slope failures occurred during the rainy season between November 1980 and April 1981.
Suggested Citation
Ege, J.R., 1983, Landslide investigations, southern Cianjur Regency, West Java Province, Indonesia; a progress report: U.S. Geological Survey Open-File Report 83-597, ii, 27 p. ill., maps ;28 cm., https://doi.org/10.3133/ofr83597.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Landslide investigations, southern Cianjur Regency, West Java Province, Indonesia; a progress report |
| Series title | Open-File Report |
| Series number | 83-597 |
| DOI | 10.3133/ofr83597 |
| Year Published | 1983 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | ii, 27 p. ill., maps ;28 cm. |