With the improvement of the west - china development , capital construction project in collapsible loess areas had been increased greatly in resent years 随着我国对西部地区开发力度的加强，湿陷性黄土地区工程建设速度近年来有了很大的提高。
Third , in the loess area , there is tension fractures on the top of slope generally . deep of the tension fracture could be deduced theoretically by columb strength theory 3 、黄土地区，边坡后缘常存在垂直张裂缝，裂缝深度根据土的强度指标可以计算。
Abstract : the successful application of lime - soil compaction pile provides an economical and reliable method for ground treatment of high - storey building in loess area 文摘:灰土挤密桩的成功经验，为黄土地区高层建筑地基处理提供了一种既经济又可靠的方法。
At present , we mainly depend on our experience during designing special subgrade in the areas because of lacking in sufficient scientific support and specific confirmed methods 目前，由于缺乏充分的科学依据和具体的确定方法，在设计黄土地区路堑高边坡时主要是凭经验。
Due to the special quality of the loess , complicated geology and geography , many heavy cuts and high embankments will be needed when building high - grade highways in the loess areas 由于黄土特殊的性质和复杂的地质、地理因素，在黄土地区修筑高等级公路时，将会遇到大量的深挖路堑高边坡。
Most part of the north trunk line of wanjiazhai yellow river delivery project has to pass through the zone of collapsible loess , so the collapsibility of the loess foundation becomes the main engineering geological problem therein 摘要山西省万家寨引黄工程北干线输水管线大部分地段通过黄土地区，黄土地基的湿陷性已成为主要的工程地质问题。
The research result will improve the design method in gansu , lower the engineering cost , and avoid and reduce the engineering diseases . besides , it will even play an active role in rode design method of our country 研究成果对改善甘肃黄土地区的路面设计方法，降低工程造价，避免和减少工程病害，乃至对我国路面设计方法的发展均将发挥积极的作用。
Application of cpt technology in the loess area , the bearing capacity of artificial composite ground is determined . moreover , the correspondence relationship between the curve feature of cpt and the compact effect of lime - mud soil compact pile is discussed 论述了静力触探( cpt )技术在黄土地区对人工复合地基承载力的确定，以及静力触探曲线特征与灰土挤密桩挤密效果的对应关系。
The loess pitfall in the collapsibility loess roadbed is common highway hazard in the area of collapsibility loess . it also brings heavy danger to communication and transportation and belongs to the subject waiting to be solved urgently in the highway engineering too 湿陷性黄土路基中的下伏陷穴，是湿陷性黄土地区常见的公路灾害，给交通运输也带来了非常大的危害，是公路工程中亟待解决的课题。
By using advanced gis technology , weighting the risk of landslide hazards , and analyzing the similarity and difference among landslide hazards factors , the risk assessment index - system of region loess landslides was established 以宁夏西吉县为研究区，将先进的gis技术应用于区域地质灾害灾情评估，全面考虑了滑坡灾害危险性及构成危险性各因素的相似性与差异性，从而确定了合理的黄土地区滑坡危险性评价指标。
