摘要
风沙土广泛分布于我国北方干旱、半干旱的沙漠地区 ,是一种特殊性质的地基土 ,其工程地质勘察重点、方法及沙漠地区道路选线的原则与其他地区不同。本文从实际调查和试验分析出发 ,提出了沙漠地区工程地质勘察重点主要为沙漠地貌、风沙环境、植被状况及水文条件。勘察方法主要有遥感和地面调查、室内分析和模拟试验及现场的一些简便试验。道路选线原则主要是 ,绕避严重流沙地段、选择有利地貌形态、选蚀不选积、有利于防沙工程的布设、有利的风向、尽可能少的改变原始地貌形态 ,选择在沙害较轻地带通过。
As a kind of special soil,aeolian soil distributes extensively in the arid and s emi\|arid areas of north China.The key points of engineering geological survey a nd the principle for route selection in desert areas are different from those in other areas.Based on the field survey and experimental analysis,it is pointed o ut that the key points for the survey in desert areas are the desert land form,e nvironment,vegetation and hydrological conditions.The main measures for engineer ing geologic survey are remote sensing,field investigation,laboratorial testing and simulative testing.The general principle of route selection is to select a f avorable geomorphology,to select wind erosion areas and the favorable wind direc tion,to be favorable to the layout for desert\|prevention engineering and to min imize the change of the landform.
出处
《工程勘察》
CSCD
北大核心
2005年第2期33-36,共4页
Geotechnical Investigation & Surveying
基金
国家 973项目 (2 0 10 34)
关键词
沙漠地区
工程地质勘察
道路选线
desert area
engineering geologic survey
route sele ction
