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水下抛石护岸加固是崩岸治理施工措施的一种 ,虽然它的施工技术简单 ,但比较系统而详细的资料却较少 ,也无国家施工规范。以长江某河段水下抛石护岸加固工程为例 ,对这种施工技术作了详细介绍 ,并提出一些新的切实可行的施工方法。如 (1)定位船下游平行锚缆布置和增加滑缆绳 ,不仅减少了抛石船的定位时间 ,避免了挂档后各列抛石船的相互拥挤碰撞 ,而且大大提高了抛石厚度的均匀性和准确性。 (2 )拟抛石区每 8条船一个组合有序地停放 ,提高量方人员的工作效率 ,避免了水上通航堵塞 ,提高了施工安全性。
Underwater riprap revetment is a kind of construction measures for bank collapse treatment. Although its construction technology is simple, it has less systematic and detailed information and no national construction norms. Taking the underwater riprap revetment reinforcement project of a certain section of the Yangtze River as an example, this construction technology is introduced in detail, and some new feasible construction methods are put forward. Such as (1) the positioning ship parallel to the downstream anchor cable layout and increase the cable, not only reduces the positioning time of the riprap ship, to avoid the railing of the column after each row of pounding ship mutual crowded collision, and greatly increased the thickness of the riprap uniform Sexuality and accuracy. (2) Each combination of eight boats in the proposed area for rubbings shall be parked in an orderly manner so as to improve the working efficiency of personnel of measurement and quantity, avoid the blockage of waterway navigation and improve the construction safety.