大面积淤泥质土吹填高程及平整度控制

Filling height and smoothness control of large area mucky soil

针对传统吹填不平整、严重积水等问题,结合苍南县江南海涂围垦区吹填及软基处理二期工程Ⅰ标段A2区吹填施工实例进行研究,通过吹填高程的实时动态计算,确定吹填高程,采用进塘管技术及分层吹填、分散布置水门等有效措施保证各吹填分区的验收高程、吹填平整度、吹填区无积水,并起到缩短排距、降低成本、减轻围堰安全压力等作用,确保吹填质量。

The traditional hydraulic reclamation has the problems of unevenness and serious ponding.Combining with the example of dredger fill construction of hydraulic reclamation and term II tender I area A2 inpolder area of Cangnan County , we determine the fill height by timely energetic calculation of fill elevation , and adoptinlet pipe technology , separate layer dredger fill , decentralize arrangement of gates and other effective methods toensure acceptance elevation , blowing and filing degree and no ponding in dredger fill area of various fill branch.The measures can shorten emission distance , decrease cost , alleviate cofferdam safety pressure and ensure the fill quality.