积石峡材料设计方案.doc

说 明 书 目 录 概述····························································3 任务依据···································································3 设计标准···································································3 1、主要标准、规范····························································3 2、设计标准·································································3 对工程可行性研究报告及初步设计外业勘测验收会议纪要的执行情况···············3 测设简况、设计方案拟定及推荐方案的确定······································4 路线起讫点、中间控制点、全长、所经主要河流、垭口及城镇等·······················4 占用土地情况·······························································4 新技术采用及计算机的运用情况···············································4 下一阶段需要进行试验、研究的项目及解决的问题································4 沿线自然地理概况················································6 地形、地貌··································································6 区域地质稳定性评价·························································6 1、地质构造·································································6 2、新构造运动及区域地壳稳定性···············································6 3、区域地壳稳定性···························································6 4、滑坡·····································································6 5、泥石流··································································9 工程地质评价·······························································9 1、工程地质条件·····························································9 2、工程建设可能遭受地质灾害危险性的预测·····································9 水文地质评价······························································10 1、气象与水文·····························································10 2、水文地质条件····························································11 路线···························································12 路线布设及主要技术指标采用情况············································12 可行性研究报告所定路线方案的采用及重大变更的论证··························13 方案布置及方案的比选论证··················································13 路基、路面及排水················································16 路基·········