摘要
上海长江隧桥工程崇明接线工程需要大量路基填料,但该地区土源缺乏,为了节约经济、疏浚长江航道、保护周边生态环境,贯彻因地制宜就地取材原则,采用了长江口细砂填筑高等级公路路基。但目前国内对细砂用作高等级公路路基填料的适宜性研究尚欠深入。通过室内试验研究分析长江口细砂的物理特性、力学特性和化学特性等,并对其路用性能进行综合评价,研究结果表明长江口细砂具有良好的路用性能,如能扬长避短,合理利用,是理想的筑路材料。
It needs vast scale of filler in subgrade of Chong ming connecting line engineering of the Long river tunnel and bridge engineering of Shang hai, but it is deficiency of soil resources in the region, so adopting the Long river estuary fine sand as filler of highway subgrade for economization economic, dredging the Long river channel, protecting surrounding ecological environment, by executing the principle of adaptation to local conditions and obtaining raw materials locally. Now it hasn＇t been researched profoundly for fine sand filling in highway subgrade domestically, so we analyzed the physical, mechanical and chemical characteristics of the Long river estuary fine sand by laboratory tests and comprehensively evaluated its highway performance. The researching result indicates that the Long river estuary fine sand is in good highway performance, it is ideal road material by putting it to rational use.
出处
《公路工程》
2008年第3期142-146,共5页
Highway Engineering
关键词
道路工程
填砂路基
长江口细砂
路用性能
road engineering
sand-filling road bed
fine sand of the Long river estuary
highwayperformance
