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1、洛宁至卢氏高速公路第三合同段路基试验段施工方案路基试验段施工方案1.工程概况1.1概述洛宁至卢氏高速公路是河南省郑州至卢氏高速公路第二段新建项目,为河南省高速公路网西部支线之一。途径洛宁、卢氏两县市。路基试验段设在K88+472~K88+700段,为我标段黄土地基冲击碾压处理段,地基土主要为非自重湿陷性黄土(Ⅱ级)。本段路基设计要求:冲击碾压后1m深度范围内的压实度不低于90%,湿陷系数小于0.015。本实验段平面位置示意图如下:1.2工程地质构造根据地质调查和勘探钻孔揭露情况,桥梁区的地质现象主要表现为黄土
2、平梁,为第四系中更新统老黄土,夹多层棕红色古土壤层,岩性主要为粉质粘土和粉土,硬塑至坚硬。2.编制依据《湿陷性黄土地区建筑规范》(GB50025-2004)《建筑地基处理技术规范》(JGJ79-2002)《公路工程质量验收评定标准》(JTG.B01—2003)《公路路基施工技术规范》(JTGF10—2006)设计院提供的相关设计图纸、文件等3.路基工程主要技术标准1、路基面形状路基面形状为矩形,线路中线以外向两侧设2%的横向排水坡。2、路基面宽度路基面宽度按双向4车道进行设计,路基宽度为26m。4.试验目的清
3、水混凝土的配合比设计中,要针对当地水泥、砂石、外掺料及外加剂等原材料影响混凝土质量的多种因素进行分析,确定主要控制因素,并从经济性和使用要求综合考虑,优选出符合生产条件的最优方案组合。obstacles,correctingmisunderstandings,advocategoodcadrestyle.2,adheretothescientificdecision-makinganddemocraticdecision-makingdecision-makinglaw.Correctlyhandletoen
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