摘要
针对武广沿线大量风化软岩,对其进行了水泥改良的击实试验研究,分析了水泥改良土填筑路基的施工工艺和质量控制指标,检测结果表明,无侧限抗压强度作为软岩化学改良土的一个重要控制指标,掺入5%水泥的风化软岩满足现场填筑标准.同时建议以压实系数K为路基压实质量的主要检测指标,并辅以地基系数K30、路基刚度Evd及变形模量Ev2的检测.
Compaction tests were done on lots of weathered soft rock in Wu - Guang passenger transportation line. The construction process , quality controlling and inspecting results of roadbed filled with cement - improved soft rock were analyzed. The results show that the value of unconfined compression strength of cement -improved soft rock should not less than 500 kPa, which is the important controlling index. The weathered soft rock with 5% cement can be satisfied with placement standards. At the same time, the article suggests compactness as the mail inspecting index, and K30, Evd and Ev2 were the secondary one.
出处
《河南理工大学学报（自然科学版）》
CAS
2011年第2期201-205,共5页
Journal of Henan Polytechnic University（Natural Science）
关键词
软岩
水泥改良
无侧限抗压强度
检测指标
soft rock
cement improved
unconfined compression strength
inspecting indexes.
