Based on the concept of engineering geological model (EGM) and the techniques of visualization in scientific computing (VISC), combined with the project of engineering geological research on establishing the upper mining level under thick unconsolidated aquifers of Taiping coalmine, an engineering geological model has been improved in its function of visualization. The extract of modeling factors influencing on establishing the upper mining level and the methods describing the 3D features and their visualization were realized. Further more, the development of caving zone and water flowing fractured zone is predicted and simulated dynamically in order to realize the direct discovery of mining effects.

The Quaternary strata in the research area, located in the west part of Zoucheng city, Shandong province, can be divided into 3 groups of aquifers and aquifuges according to their water enrichment, namely a top set, a middle set and a bottom set respectively. As a stable aquifuge, the middle set isolates the hydraulic relationship between the top and the bottom aquifers. In the recent years, more than 30 feed wells were drilled in the region ofTaiping coalmine. The connective tests indicated the obvious hydraulic connection between feed wells and mine drainage. In order to cut off the recharge from the top set to the bottom set through the wells, the bottom parts of the wells have been sealed and blocked with grouting process. Tests show that the grouting did not affectsignificantly the hydraulic discharge of wells and can preserve the water resources of the top water-bearing strata.

The engineering geological model and numerical simulation models for fully mechanized sub-level caving under thick unconsolidated water-bearing strata are constructed to predict and simulate the stress distribution and the extent of failure zones in the overlying rock mass. The distribution of the principal stresses in overburden rock mass is divided into three types. The failure conditions of overburden are classified into tensile cracked area, tensile-fissured area, and plastic deformation or shear fractured area. The extent and height of water flowing fractured zone can be determined on the stress distributions and failure conditions.Based on the calculation results and comprehensive engineering geological and hydrogeological evaluation, the height of safetypillars under water body of mining thick coal seam No.3 in Taiping coal mine is then defined to be 60m, which is the minimum size of pillars in similar geological and mining conditions in Yanzhou coalfield.

教学质量是高等教育永恒的主题。高等学校院（系）对教学质量保障起着举足轻重的作用。本文从健全院（系）教学管理与咨询机构、明确院（系）办学定位、建立院（系）教学管理和质量保证体系等方面进行了探讨并结合工作实际介绍了实施的效果。

针对兖州太平矿区内赋存有薄基岩的地层条件，以工程地质力学模型试验为手段，研究了薄基岩条件下条带开采覆岩与地表移动变形及破坏的工程地质机理及其主控因素，揭示了薄基岩条带综放开采引起的上覆岩层的破坏过程、破坏形态、破坏范围及地表的移动变形规律，为工程实践提供了理论依据。