某机场扩建工程连续压实控制技术应用研究

Application of Continuous Compaction Control Technology in an Airport Expansion Project

为进一步促进连续压实控制技术的精细化应用,在某机场扩建工程开展连续压实控制技术应用研究。首先,根据依托工程的实际情况,制定了连续压实控制技术的关键工艺流程和质量控制标准。在此基础上,在4-1标段开展现场校准试验,确定了连续压实控制的目标值[VCV]。最后,采用以目标值校准法为主薄弱区域识别法为辅的连续压实控制方法对研究区域进行了碾压质量评估。结果表明,线性回归决定系数R^(2)均大于0.5,满足工程应用的精度要求。在碾压第7遍后,监测单元的压实程度通过率达到了98.7%,均匀系数和稳定系数分别为0.82和0.01,同时薄弱区域压实质量可通过复核检测,监测单元的压实质量评估为合格。质量评估结果验证了本文连续压实控制方法的适用性,从而为类似工程提供有益的经验参考和借鉴。

In order to further promote the refined application of continuous compaction control technology,the application research of continuous compaction control technology was carried out in an airport expansion project.Firstly,according to the actual situation of the relying project,the key process flow and quality control standards of continuous compaction control technology were formulated.On this basis,the field calibration test was carried out in the 4-1 bid section,and the target value of continuous compaction control was determined.Finally,the continuous compaction control method supplemented by the target value calibration method as the main weak area identification method is used to evaluate the rolling quality of the study area.The results show that the linear regression coefficients of determination R^(2) are all greater than 0.5,which meets the accuracy requirements of engineering applications.After the seventh pass of rolling,the pass rate of the monitoring unit’s compaction degree reached 98.7%,and the uniformity coefficient and stability coefficient were 0.82 and 0.01,respectively.At the same time,the compaction quality of the weak area can pass the review test,and the compaction quality evaluation of the monitoring unit is qualified.The quality evaluation results verify the applicability of the continuous compaction control method in this paper,so as to provide useful experience reference and reference for similar projects.