毛乌素沙漠地区特殊路基处理技术的研究.pdf

论文独创性声明本人声明:本人所呈交的学位论文是在导师的指导下,独立进行研究工作所取得的成果。除论文中已经注明引用的内容外,对论文的研究做出重要贡献的个人和集体,均已在文中以明确方式标明。本论文中不包含任何未加明确注明的其他个人或集体已经公开发表的成果。本声明的法律责任由本人承担。论文作者签名:蔓秀峙三。,/年6月22日论文知识产权权属声明本人在导师指导下所完成的论文及相关的职务作品,知识产权归属学校。学校享有以任何方式发表、复制、公开阅览、借阅以及申请专利等权利。本人离校后发表或使用学位论文或与该论文直接相关的学术论文或成果时,署名单位仍然为长安大学。(保密的论文在解密后应遵守此规定) 论文作者签名:董秀坤别帷名锄二p,/年6月口日锄沙f㈩吵’、,. j 的风积沙路基沉降预测之间建立了合理的推理关系。计算预测结果与实际接近,具有较强适用性。同时为了比较验证,也对风积沙地基采用传递矩阵法进行了应力和位移计算。 ,通过对每一个影响工程处理方案选择的因素进行分析,从而找到最大关联度的方案。这种方法对多指标系统的评价贴近于实际。关键词:沙漠;地基承载力;稳定性;地基处理;范例推理;灰色区间关联决策 Abstract 0n expressway construction inthedesert,there are many technical problems including problems not only on paction,windbreak and sand fixation but also on special roadbed technical problems also include thetreatment ofspecial soil mixed with aIlim2Llandplant remains aftercorruption andaeolian sandand thetreatment of aeoliall sand weak foundation containing silt at low-lying stagnant theearlier constructionof(the halfwidth)of National Expressway 20-Yulin--Shaanxi—Inner Mongolia boundary which totally includes 76km,we have encounteredmany special foundation aremarshwetland,sludge soilfoundation,peat soilfoundation and animal waste soilfoundation including more than 20 are alsomore thanl O kilometers roadbed foundation where underground water level isclose tothesurface thesubsequent construction ofanother halfwidth(88km)of National Expressway 2 0,there are 4km rivervalley terrace deposition area,the strata primary consisting offinesand with high water content,and thebearing capacity are53km lake basin beach land along theroadand thegroundwater has relatively shallow rainy es,the sitesoften gather water and formlake surface soilsare alluvial sediments or lacustrine deposit siltclayand most of thefoundation soilsare have level layered are 8km road mainly locate atlake basin beach land where undergrou