An Investigation of the Earth Pressure Distributions and the Shear Band Patterns for Rigid Retaining Walls

• Main Authors: Gen Yi Lu, 盧耿逸
• Other Authors: Tse Shan Hsu
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/43756734344366549976

碩士 === 逢甲大學 === 土木及水利工程研究所 === 88 === Various types of retaining walls have been used in deep excavations in urban. However, When the retaining walls under active failure states, the failure plane in backfills and the lateral earth pressure can be ascertained only by the deflections of the retaining walls and the surface of the backfills. According to the accompany researches, the lateral earth pressures measured by the deflections of the retaining walls and the surface of the backfills usually have remarkable different with the pressures measured in situ. Thus, the thrust of this research is to perform plane strain model tests for both the lateral earth pressure distributions and the shear band patterns behind a rigid retaining walls under different conditions. It is shown from the results of model tests that the relative density of backfills, the gravel contains of backfills, the earth pressure on the surface of the backfills and the moving types of retaining walls all effect the earth pressure distributions and the shear band patterns obviously. Further more, groups of shear bands in backfills are induced. The shear bands effect each other, it was not considered in single failure plane which in various later earth pressure theory. This research is helpful for improving the lateral earth pressure analysis and the retaining walls design.