土方工程施工方案.doc

土方工程施工方案
一、工程设计情况
    1、本工程为高淳县高级中学扩建工程的第二标段，由高中楼和门厅二个部份组成，基础均为独立基础和条形基础，地基持力层为②层粉质粘土，中等压缩性，中等强度。
2、工程地质情况，根据工程地质勘测报告，本场地为中硬场非地，场地类别为Ⅱ类，场地等级为三级。勘测报告提供的地质构造有三层，第一层为素填土和淤质填土，以粉质粘土为主，非均匀质，强度低，该层底板埋在0.5-2.8m。第二层为本工程的持力层，厚度为1.0-3.7m，中等压缩性和中等强度，第三层，即本工程的地基下卧层，粉质粘土，湿，硬塑-坚硬，中等压缩性和中等强度，底板埋深6.5-8.5m。
3、水文地质特征，地下水属孔隙潜水，主要接受大气降水入渗补给，双蒸发方式排泄，地下
Earthwork construction plan
First, engineering design situation
    1, this works for Gaochun County High School expansion project's second sections, from the high school building and the hall composed of two parts, based on an independent basis and are strip foundation, foundation bearing stratum layer of silty clay to ②, Medium compression, moderate intensity.
2, engineering geology, according to engineering geology report, the site is in the field of non-hard, the site category Ⅱ, site grade 3. Survey report of geological structure has three, the first layer is a prime quality of fill and silt fill, to silty clay-based, non-uniform quality, low intensity, the bottom layer buried 0.5-2.8m. The second layer-based engineering support layer, thickness 1.0-3.7m, medium and moderate compression, the third layer, that is the foundation of this project under the substratum, silty clay, wet, hard plastic - hard, medium compressibility and moderate intensity, bottom depth of 6.5-8.5m.
3, hydrogeological characteristics and groundwater is phreatic, meteoric recharge of the main receiving double evaporation drainage, underground