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灌区河道衬砌施工中经常会遇到软弱河坡地基问题,该种地基透水性差、可塑性大,给施工造成多种困难,处理不当会引起质量事故的发生。因其具有突发性、局部性、多样性的特点,在施工前无法预设处理方案。遇到该种地基时,需现场勘察,分清种类,做出相应处理方案,及时处理。本文根据作者多年河道衬砌施工经验,总结出多种软弱河坡地基种类及相应处理方法,为今后河道衬砌施工中需处理此类问题时提供参考。
Irrigation riverbed lining construction often encounter weak riverbed foundation problems, such a foundation permeability is poor, plasticity, causing a variety of construction difficulties, improper handling can cause quality accidents. Because of its characteristics of suddenness, locality and diversity, it is impossible to preset the treatment plan before construction. Encountered such a foundation, the need for site investigation, distinguish types, make the appropriate treatment programs, timely manner. Based on the author’s many years of experience in river lining construction, this paper summarizes the types and corresponding treatment methods of various kinds of weak river slopes, and provides references for the future treatment of such problems in river lining construction.