煤矸石抗剪强度试验研究

Experimental Research on Coal Gangue Shear Strength

本文针对邯邢地区有代表性的某类煤矸石,通过试验对其抗剪性能进行研究。根据材料的自身特性,确定大型直剪试验的方案,并进行直剪快剪试验。根据直剪试验的数据,分析得出了该类煤矸石抗剪强度的两个重要指标(内摩擦角φ、黏聚力c),为煤矸石在公路路堤回填中的应用提供理论依据,为煤矸石公路路堤的稳定性验算提供设计参考。

Focusing on the typical coal gangue in Hanxing area,this paper examines shearing property by means of experiment. The large direct shear test plan is confirmed and conducted to depend on the nature of material. Experimental data are analysed, and two index （ angle of internal friction φ, cohesion c） of the coal gangue that embodies shear strength is proposed. This paper not only to provide theoretical base for application of coal gangue in highway embankment backfill , but to contribute to the stability checking computations.