Sheeting Joints: Characterisation, Shear Strength and Engineering
Sheeting Joints: Characterisation, Shear Strength and Engineering
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DOI：
10.1007/s00603-010-0100-y
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发表时间：
2011
影响因子：
6.2
通讯作者：
S. Hencher;S. G. Lee;T. G. Carter;L. Richards
中科院分区：
文献类型：
--
作者：
S. Hencher;S. G. Lee;T. G. Carter;L. Richards
席状节理是广泛的裂缝，通常平行于自然边坡发展。胚胎片状节理最初构成水流通道，然后成为风化和沉积物填充的焦点，并伴随着逐渐恶化和扩张。岩石板由于其逆方向和长期的持久性而周期性地沿着它们破裂。然而，它们是粗糙的和波浪形的，并且这些特征高度有助于它们的剪切强度并提高它们的稳定性。本文回顾了几个滑坡的实例，并在此基础上提供了表征板状节理和确定其抗剪强度的准则。工程选项，稳定板缝在自然和切坡配置，然后检查参考案例。
Sheeting joints are extensive fractures that typically develop parallel to natural slopes. Embryonic sheeting joints initially constitute channels for water flow and then become the focus for weathering and sediment infill accompanied by progressive deterioration and dilation. Slabs of rock fail along them periodically because of their adverse orientation and long persistence. They are however rough and wavy and these characteristics contribute highly to their shear strength and improve their stability. This paper reviews several landslide case histories and on the basis of these provides guidelines for characterising sheeting joints and determining their shear strength. Engineering options for stabilising sheeting joints in natural and cut slope configurations are then examined with reference to case examples.