结果表明抗拔桩的曲线形状与持力层岩石风化程度和桩的嵌岩深度有关。
It is shown that the shape of curves is related to the rock weathering of bearing strata and rock-socketed depth.
目前还未有人坐在上面刚巧遇上岩石崩塌的情况，这不是因为判断力好，纯粹是走运，因为风化侵蚀是当地十分正常的自然现象。
It is purely down to luck rather than judgment that no one has been sitting on these chunks of rock when the ground has given way. For erosion is a fact of life here.
遂宁组母质易风化，风化后的碎屑黏聚力弱、结构力差，易遭受径流侵蚀。
Parent material of Suining group is easy eroded, and the erosion material is of poor cohesion and structure and even easier being eroded by runoff.
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