煤矸石填筑高等级公路路基的效益分析

根据山东省枣庄市一级路“光明大道”路基施工现状，对煤矸石替代素土和石灰土填筑高速公路路基的经济效益与社会效益进行深入分析。并指出利用煤矸石填筑路基，既可节约耕地、减少环境污染，又可减少取土场地造成的粮食和经济作物的损失及植被的破坏．有利于生态环境的保护，具有很高的经济效益和深远的社会效益，值得在多矿地区大力推广。

Research on Benefit of Coal Gangue Filled in Subgrade of High-level Road

Based on the present situation of high-level subgrade construction of Guangming Main Street in Zaozhuang city of Shandong province, the coal gangue which is used to replace soil and soil lime has been given the in-depth analysis in economic and social efficiency. At the same time, the paper points out that to utilize of coal gangue filled in the subgrade can not only save the land and reduce the environment pollution, but also reduce the loss of gain crops and industrial crops and destruction of vegetation cover, which will be conducive to the protection of the ecological environment, having vast economic and profound social benefits. This method is worthy of popularization.