A fluidized landslide on a natural slope by artificial rainfall

被引：159

作者：

Ochiai, Hirotaka ^{[2
]}

Okada, Yasuhiko ^{[1
]}

Furuya, Gen ^{[3
]}

Okura, Yoichi ^{[2
]}

Matsui, Takuro ^{[2
]}

Sammori, Toshiaki ^{[2
]}

Terajima, Tomomi ^{[4
]}

Sassa, Kyoji

机构：

[1] Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan

[2] Natl Res Inst Earth Sci & Disaster Prevent, Tsukuba, Ibaraki 3050006, Japan

[3] Kyoto Univ, Disaster Prevent Res Inst, Res Ctr Landslide, ICL, Kyoto 6110011, Japan

[4] Chiba Univ, Chiba 2638522, Japan

来源：

LANDSLIDES | 2004年 / 1卷 / 03期

关键词：

Natural slope; Sliding surface formation; Stereo photogrammetry; Soil surface movement; Landslide-fluidization;

D O I：

10.1007/s10346-004-0030-4

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

An experiment to induce a fluidized landslide by artificial rainfall was conducted on a natural slope at Mt. Kaba-san in the village of Yamato, Ibaraki Prefecture, Japan. The experimental slope was 30 m long, 5 m wide, and the average slope gradient was 33 degrees. A landslide initiated 24,627.5 s (410 m/27.5 s) after the start of sprinkling at a rainfall intensity of 78 mm/h. The landslide mass was 14 m long and 1.2 m deep (at maximum). It first slid, then fluidized, and changed into a debris flow. The travel distance was up to 50 m in 17s. The apparent friction angle of the fluidized landslide was 16.7 degrees. Formation of the sliding surface was detected by soil-strain probes. Motion of the surface of the failed landslide mass was determined by stereo photogrammetry.

引用

页码：211 / 219

页数：9

共 25 条

[1] [Anonymous], 2000, GeoEng 2000: An International Conference on Geotechnical and Geological Engineering. Melbourne, Australia. 9-24 November 2000. Technomic Publishing Company, Inc., Lancaster
[2] Bishop A. W., 1973, Q J ENG GEOL, V6, P1851, DOI [DOI 10.1144/GSL.QJEG.1973.006.03.15, 10.1144/GSL.QJEG.1973.006.03.15, DOI 10.1144/GSL.QJEG.1973.006.03.15)]
[3] Bromhead E.N., 1979, Ground Eng, V12, P40
[4] INSTRUMENTED LABORATORY FLOWSLIDES
ECKERSLEY, D
[J]. GEOTECHNIQUE, 1990, 40 (03): : 489 - 502
[5] FLOWSLIDES IN STOCKPILED COAL
ECKERSLEY, JD
[J]. ENGINEERING GEOLOGY, 1985, 22 (01) : 13 - 22
[6] Fukuzono T., 1985, Landslides, V22, P8, DOI [DOI 10.1016/0148-9062(87)91524-5, DOI 10.3313/JLS1964.22.2_8]
[7] HARP EL, 1990, GEOL SOC AM BULL, V102, P428, DOI 10.1130/0016-7606(1990)102&lt
[8] 0428:PPRDFI&gt
[9] 2.3.CO
[10] 2

← 1 2 3 →