STUDY ON STABILITY OF NATURAL SLOPE CUTTING WORK
During the course of slope cutting construction on a natural slope or after the construction,a failure plane of variable slope angle will be developed. According to results of centrifugal model tests and in-situ tests, there are two failure patterns for such a slope. One has a failure plane starting at the top of slope, and the other starting at the surface of slope.Upper-bound excavation depths for the two failure patterns have been calculated with upper-bound method, respectively. With comparison of the two Upper-bound excavation depths under the same conditions, occurrence conditions of the two failure patterns are discussed and determined, hence (1) the limiting excavation depth, (2) the safety factor when the designed excavation depth is less than Upper-bound excavation depths, and (3) the soil pressure when the designed excavation depth is more than the limiting excavation depth, can be calculated. Our work will provide some guidance for the stability design of slope cutting work constructed in natural slopes.
Slope Cutting Upper-Bound Solution Limiting Excavation Depth Safety Factor Soil Pressure
QIANG LIU JUNJIE YANG YUANDONG DING Y.TOYOSAWA K.ITOH N.HORII
College of Environmental Science and Engineering, Ocean University of China, Shandong, Qingdao, 2661 Construction Project Management Center of Lao-Shan region, Shandong, Qingdao, 266061, China National of Institute of Industrial Safety, Kiyose, Tokyo, 1138656, Japan
国际会议
第三届中日岩土工程研讨会(Proceedings of the 3rd Sino-Japan Geotechnical Symposium)
重庆
英文
375-382
2007-11-05（万方平台首次上网日期，不代表论文的发表时间）