论文部分内容阅读
最近在菲律宾的三项工程中,为了测定公路路面的强度,曾经使用510型路面纵断仪,沿外轮轨迹以大约每隔50米的间距,进行测量路面的弯沉值及其曲率,每天可测500个点,每点平均只需15秒钟。从这些数据所得出的路面强度纵断图上可以很精确地找出强度不足或已经破坏的地段。并在已经测出的强度低的地方进行钻探和(或)土壤试验,借以确定哪些是由于路面软弱,或是由于路基湿度过大,或是由于施工问题造成的。
In the recent three projects in the Philippines, in order to determine the strength of road pavement, 510 Pavement Tester was used to measure the deflection of the pavement and its curvature along the outer wheel track at intervals of about 50 meters every day. Test 500 points, each point on average only 15 seconds. The longitudinal strength profiles obtained from these data provide a very accurate picture of areas of insufficient strength or damage. Drilling and / or soil testing is performed at low-intensity areas already identified to determine which are due to weak pavements, excessive wetness in the subgrade, or construction problems.