地震波法检测水泥混凝土路面板含水脱空试验研究  

Experimental study of seismic wave detection of water-cut void of cement concrete pavement

作　　者：徐天阳 易筱阳 李想 彭永恒[1] 李涛 杨海光 吴殿臣 XU Tianyang;YI Xiaoyang;LI Xiang;PENG Yongheng;LI Tao;YANG Haiguang;WU Dianchen(College of Civil Engineering,Dalian Minzu University,Dalian 116650,China;The 3^(rd) Engineering Limited Company,China Railway Guangzhou Engineering Bureau Group,Zhaoqing 526020,China;College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China;Shanghai Branch,China MCC17 Group,Shanghai 200001,China;Road and Bridge Design Office,Daqing Oilfield Design Institute,Daqing 163712,China;International Project Branch,The 2^(nd) Pipeline Construction Limited Company of CNPC,Xuzhou 221000,China)

机构地区：[1]大连民族大学土木工程学院,大连116650 [2]中铁广州工程局集团第三工程有限公司,肇庆526020 [3]东北石油大学机械科学与工程学院,大庆163318 [4]中国十七冶集团上海分公司,上海200001 [5]大庆油田设计院道桥室,大庆163712 [6]中国石油天然气管道第二工程有限公司国际工程分公司,徐州221000

出　　处：《黑龙江大学自然科学学报》2021年第2期238-245,共8页Journal of Natural Science of Heilongjiang University

基　　金：国家自然科学基金资助项目(51478089);大连民族大学创新创业训练计划(校级20201202644,省级20191202612)。

摘　　要：为了研究地震波法检测水泥混凝土路面板含水脱空动力响应,采用室内缩尺试验的方法,进行水泥混凝土路面板含水脱空试验,得出在不同脱空状态、不同脱空区域和不同落锤高度的情况下水泥混凝土路面板在含水和不含水状态下的动力响应。结果表明:水泥混凝土路面板的脱空位置和锤击位置不同,导致水泥混凝土路面板所承受的力存在很大差异,角隅纵缝同时脱空锤击纵缝时,脱空区域应变值最大;随着水泥混凝土路面板脱空面积的增大,脱空区域的应变值也会随之增大;随着锤击高度的增高,脱空区域的应变值逐渐增大,而且含水状态下,落锤高度越大,水泥混凝土路面板应变值的变化越明显;水泥混凝土路面板含水脱空路面板的应变值明显大于不含水脱空路面板。采用降低轴载和排水灌浆的方法可以明显减缓水泥混凝土路面板含水脱空所造成的结构破坏。In order to study the seismic wave method to detect the dynamic response of cement concrete pavement slab water-cut void,the water-cut void experiment of cement concrete pavement slab was carried out by indoor scale test.The dynamic responses of cement concrete pavement slab under different void states,different void areas and different drop hammer heights were obtained.The results show that the void position and hammering position of cement concrete pavement slab are different,which leads to the great difference in the force of cement concrete pavement slab,and the maximum strain value of the void area is obtained when the corner longitudinal joint is emptied simultaneously.With the increase of the void area of cement concrete pavement slab,the strain value of the void area will increase.With the increase of drop hammer height,the strain value of the void region increases gradually.Through the experimental study,it can be clearly seen that the strain of the water-cut voided cement concrete pavement is obviously larger than that of the water-cut voided cement pavement.Adopting reducing the axial load and drainage grouting can effectively slow down the damage of water-cut void area cement concrete pavement structure.

关 键 词：道路工程 地震波法 水泥混凝土路面板 含水脱空 

分 类 号：P631.4[天文地球—地质矿产勘探]