大面积淤泥质土吹填高程及平整度控制

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。

Filling height and smoothness control of large area mucky soil

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 in polder area of Cangnan County,we determine the fill height by timely energetic calculation of fill elevation,and adopt inlet pipe technology,separate layer dredger fill,decentralize arrangement of gates and other effective methods to ensure 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.