Bearing Capacity Assessment on low Volume Roads

机译：低批量道路承载能力评估

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A large part of Latvian road network consists of low traffic volume roads and in particular of roads without hard pavement. Unbounded pavements shows serious problems in the form of rutting and other deformations, which finally lead to weak serviceability and damage of the road structure after intensive exploitation periods. Traditionally, these problems have been associated with heavy goods transport, overloaded vehicles and their impact. To find the specific damaging factors causing road pavement deformations and evaluate their prevention possibilities, and establish conditions that will allow doing it, the study was carried out. The tire pressure has been set as the main factor of load. Two different tire pressures have been used in tests and their impacts were compared. The comparison was done using deflection measurements with LWD together with dielectric constant measurements in a road structure using percometer. Measurements were takgn in the upper pavement structure layers at different depths during full-scale loading and in different moisture/temperature conditions. Advisable load intensity and load factors for heavy traffic according to road conditions were set based on the study results.

机译：拉脱维亚路网络的一大部分包括低交通卷路，特别是没有硬盘的道路。无界面的路面显示出栅栏和其他变形形式的严重问题，最终导致密集剥削期后的可靠性和道路结构的损坏。传统上，这些问题与重货运，超载车辆及其影响有关。研究进行了造成道路路面变形的具体破坏性因素，并在进行的情况下建立允许做的条件。轮胎压力已被设定为负载的主要因素。在测试中使用了两种不同的轮胎压力，并将其影响进行了比较。使用LWD的偏转测量与LWD一起与使用牲畜的道路结构中的介电常数测量进行比较。在全尺寸负载和不同水分/温度条件下，在上面路面结构层中的测量是Takgn。根据研究结果，设定了根据道路状况的可取负载强度和负载因子。

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《International Confernece on Innovative Materials, Structures and Technologies》|2016年||共11页
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A Zarins;
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中图分类工程材料学;
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Bearing Capacity Assessment on low Volume Roads

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