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我国是沙漠分布最广泛的国家之一,沙漠地区降水量小、蒸发量大、干燥缺水的气候特点,给沙漠公路路基施工带来了极大不便。本文以新疆塔里木典型沙漠地区风积沙为样品,通过对风积沙颗粒组成、天然含水量分析以及对风积沙样品击实特性的试验研究,提出了沙漠公路路基的干压实技术,以解决沙漠地区筑路用水问题,从而在保证施工质量的前提下缩短工期并降低造价。通过对试验路段的调查和检测,其技术指标均满足设计要求,证实了本文研究成果的可靠性和适用性。实用结果还表明:该技术推广应用于风积沙地区的道路修筑,不仅能稳定路基、增强路面强度,同时对充分利用当地资源、保护生态环境、加快道路建设具有特别重要的经济价值和社会意义。
China is one of the countries with the most desert distribution. The climate characteristics of small precipitation, large evaporation and dryness and water shortage in the desert area have brought great inconvenience to the construction of the highway. Based on the analysis of the aeolian sand particles, the analysis of the natural water content and the compaction characteristics of the aeolian sand samples, the authors put forward the dry compaction technology of the desert highway subgrade. Solve the problem of road water use in the desert area, so as to shorten the construction period and reduce the cost under the premise of ensuring the construction quality. Through the investigation and testing of the test road sections, the technical indexes of the test sections meet the design requirements, which proves the reliability and applicability of the research results in this paper. The practical results also show that the technology can be applied to the road construction in the windy sand area, which not only stabilizes the roadbed and strengthens the road surface strength, but also has special economic value and social significance for making full use of local resources, protecting the ecological environment and accelerating road construction .