为了提高急倾斜煤层综放工作面冲击地压危险性评价指标的准确性和增强评价方法的适用性，采用数值模拟及理论计算的方法，得到了综采工作面过煤柱区域的应力分布，分析了采掘工作面应力扰动叠加的影响，提出了近直立煤层动态权重评价法的计算体系，介绍了近直立煤层冲击危险性评价指标和评价指标分级过程，并将动态权重评价法应用于+495 m水平综放工作面冲击危险性评价中。研究结果表明：碱沟煤矿急倾斜综放工作面冲击地压的主要影响因素是煤柱和采掘工作面应力扰动叠加；+495 m水平综放工作面冲击危险等级为Ⅱ级，具有弱冲击危险性，并划分了沿工作面走向830~1 000 m、370~530 m、上分层终采线前后50 m范围3个冲击危险区域，现场验证了动态权重法能有效实现急倾斜煤层冲击地压危险性评价。

In order to improve the accuracy of evaluation index and applicability of evaluation method for rock burst risk of fully-mechanized top coal caving mining face in steep coal seam, the stress distribution in the working face when passing through coal pillar area and superposition effect of excavation face and mining face were carried out by numerical simulation and theoretical calculation method.The calculation system of dynamic weight evaluation method in steep coal seam was formed. This paper determined and graded the risk assessment index for rock burst in steep coal seam, and applied the dynamic weight evaluation method to rock burst risk assessment in +495 m level working face.The results show that: the main influencing factors of rock burst in fully mechanized top coal caving mining face of Jian’gou Coal Mine are coal pillar and the superposition of stress disturbance of excavation face and mining face.The risk grade of rock burst is II in +495 m level fully-mechanized top coal caving mining face. It had weak risk of rock burst, and divided into three dangerous areas: 830～1 000 m strike of working face,370～530 m strike of working face,50 m range before and after upper layer’ stopping mining line.The field test showed that the dynamic weight method can effectively realize the risk assessment of rock burst in steeply inclined coal seam.