研究了影响煤的可刨性的主要因素，采用调查、理论分析和系统工程方法，确定了各影响因素的权重和各因素对煤层可刨性影响程度的量化数学模型，在此基础上建立了徐州矿区煤层可刨性分类指标体系和综合评判模型，为合理选择机型、配置工艺参数提供理论依据实际应用效果良好．

根据废弃长壁采空区岩体结构特点和“活化”特征，提出了老采空区上方建筑物破裂岩体地基的注桨加固处理措施，通过对影响注浆效果各因素的分析，提出了注浆加固采动破裂岩体的工艺技术措施，注桨参数确定及检剐注浆效果的方法，并通过实例说明应用电法勘探检测注浆能保证获得满意的效果。

The movement and destruction of overburden caused by underground mining will change it's engineering geologic characteristics, forming a damaged foundation. There exists a serious hidden danger to construct on such foundation. The ground deformation over the abandoned workings is influenced by two factors: one is the compaction ruptured rock body or structure collapse; another is the disturbance by additional load of newly constructed buildings. Grouting into the fractured rock body in the condition of shallow goaf is the main way to control the ground residual deformation. While in the condition of a certain mining depth the distribution of ground subsidence is continuous and the residual deformation goes gradually. So to raise the building's ability in resisting or acclimatizing ground deformation is the main way of protecting new buildings above the goaf. A case of heavy building constructed over shallow goaf shows that the building's safety can be guaranteed on condition that measures of strengthening partial rupture ground and anti-deformation structure are adopted.

我国许多老矿区普遍存在着老采空区不良地基问题，采空区上方地表的建设开发造成了安在对全隐患。本文针对我国较普遍的老窑和小窑部分开采采空区问题，其地表破坏特征、覆岩稳定性分析和评价方法等问题进行了讨论；给出了老采空区残留空洞覆岩逐层垮落破坏和整体性突陷抽冒破坏的计算公式。

在废弃采空区破损地基上兴建大型建筑物时，建筑荷载作用引起采动破碎岩土体“活化”变形的临界采深至少为建筑荷载地基最大扰动深度和采空区冒裂带最大高度之和，给出了该临界深度的估算公式。