采用土石路基沉降差施工工艺参数控制压实质量的技术研究  

Study on Controlling Compaction Quality of SubgradeThrough Setting Settlement Differences and Adjusting Construction Parameters

作　　者：康建荣[1] 潘新元 王福托 KANG Jianrong;PAN Xinyuan;WANG Futuo(Sinohydro Bureau 5 Co., LTD,Chengdu,Sichuan,610066)

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610066

出　　处：《四川水力发电》2021年第S01期6-9,共4页Sichuan Hydropower

摘　　要：对于以土石结构形成的公路基础,由于其土石比例的不同,需采取不同的技术措施进行夯实。压实度作为路基承载力强弱的重要指标,其质量的好坏决定了公路的运营生命。介绍了对江习高速二分部试验段路基土石混合料压实后进行的质量检测,发现采用灌水法、灌砂法难以及时有效地反映现场路基压实质量,提出了采用沉降差、施工工艺参数双控法进行控制的思路,能够快速、高效地评定路基压实质量。Earth-rock subgrade needs to be compacted through different technical measures due to different earth-rock mix ratios.Compaction degree is an important indicator to bearing capacity of subgrade,and its quality determines the operational life of the express way.This paper introduces the test of compaction quality of earth-rock subgrade in the test section of Jiangxi Expressway.It is found that both water and sand grouting methods are difficult to reflect the compaction quality of subgrade in a timely and effective manner.The dual-control method,which means controlling of compaction quality through setting settlement differences and adjusting construction process parameters,is proposed by the author and this method can quickly and efficiently assess the compaction quality of subgrade.

关 键 词：路基 土石混合料 压实质量 沉降差 施工工艺 江习高速 

分 类 号：U415[交通运输工程—道路与铁道工程] U416