SURFACE SETTLEMENT ADJACENT TO BRACED OPEN CUTS
SURFACE SETTLEMENT ADJACENT TO BRACED OPEN CUTS
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发表时间：
1966-07
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通讯作者：
M. Caspe
中科院分区：
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作者：
M. Caspe
开发了半图程序来预测支撑明切附近表面的沉降梯度。对定义托换影响区的现有方法的审查表明，现有方法未经现场观察验证。介绍了开发该解决方案时使用的理论背景。舱壁后面的土体被视为半弹性四分之一截面，当舱壁移向明切时，该半弹性截面会被拉伸。基于在芝加哥粘土中观察到的露天切口的典型示例显示了预测沉降与测量沉降之间的良好相关性。
A semigraphical procedure is developed to predict the settlement gradient of the surface adjacent to a braced open cut. A review of existing methods for defining the zone of influence for underpinning discloses that present methods are not verified by field observations. The theoretical background used in developing the solution is presented. The soil mass behind the bulkhead is treated as a semi-elastic quarter-section that is stretched when the bulkhead moves towards the open cut. A typical example based on an observed open cut in Chicago clay show good correlation between the predicted and the measured settlements.