高速公路小煤窑采空区路基综合勘察与评价

采空区是公路建设中一种特殊的地质病害，特别是小煤窑采空区，由于无规划、无序、反复地开挖，故小煤窑采空区勘察与评价有较多不确定性。在公路工程地质勘察中采用综合勘察方法，查明采空区分布范围并评价其对公路工程危害程度及稳定性，对高速公路建设非常重要。本文结合安徽省铜陵至汤口高速公路具体工程实例，探讨小煤窑采空区综合勘察与评价。

The System Geotechnical Investigation and Appraisement of Coalfield Mined-out Areas beneath Expressway

The mined-out area is an especial geotechnical hazard to highway. Because of no plan, no management and repeatedly mining, there exist some uncertainty and difficulty in assessing stability of small coalfield mined-out areas. It is very important to investigate the mined-out areas for evaluating its hazard to highway by applying the integrative geotechnical investigation method. Taking the Tongling- Tangkou highway as an example, the geotechnical investigation and stability evaluation for small coalfield mined-out areas are discussed in this paper.