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浆砌片石驳岸是公路路基冲刷防护的常用构造物,驳岸水毁的主要原因是基础埋深不够。采用护坦拦截下降水流冲刷,可以大大减少驳岸基础埋置深度,其防护效果已为工程实例所证实,而且节省经费,减少施工难度。本文介绍了护坦基脚驳岸、阻水堤基脚驳岸以及护坡的冲刷计算公式及示例。
Mucked stone rubble shoal is a commonly used structure of roadbed scour protection, the main reason for the revetment water damage is that the basic buried depth is not enough. The use of retaining tank to intercept the descending flow scouring can greatly reduce the embedment depth of embankment, the protective effect has been confirmed by the engineering example, and save money and reduce the construction difficulty. This paper introduces the calculation formulas and examples of the erosion of abutment abutment footbed, barrier foundation footing and slope protection.