目 录 1 概况 .................................................................................................................................................. 1 1 .1 任务依据 .............................................................................................................................. 1 1 .2 工程概况 .............................................................................................................................. 1 1 .3 岩土工程勘察分级 .............................................................................................................. 1 1 .4 勘察执行标准 ...................................................................................................................... 2 1 .5 勘察目的、技术要求和方法 .............................................................................................. 3 1 .6 勘探点布置及孔深确定原则 .............................................................................................. 4 1 .7 勘探点测放及坐标、高程引测依据 .................................................................................. 5 1 .8 勘察概况及完成工作量 ...................................................................................................... 5 1 .9 资料利用情况 ...................................................................................................................... 5 2 区域特征 .......................................................................................................................................... 5 2 .1 自然地理及气象 .................................................................................................................. 5 2 .2 河流水文 .............................................................................................................................. 6 2 .3 地形地貌 .......................................................................................................................