文档介绍：中华人民共和国水利行业标准河道演变勘测调查规范 C ode for river channel changing process survey and investigation SL xxx — 200x 条文说明(送审稿) 200x年北京 I 目次 1总则.............................................................................................................................. 29 2 河道来水、来沙调查............................................................................................................ 30 一般规定.................................................................................................................................... 30 来水调查.................................................................................................................................... 30 来沙调查.................................................................................................................................... 31 水面线调查................................................................................................................................ 33 流速流向调查............................................................................................................................ 33 河流冰情调查............................................................................................................................ 33 3 河道演变基本勘测调查...................................................................................................... 34 一般规定.................................................................................................................................... 34 河道历史演变调查.................................................................................................................... 35 河道边界条件调查.................................................................................................................... 35 河势变化调查............................................................................................................................ 36 洲滩演变勘测调查............................................................................................