为研究厚松散层非充分开采采空区工后地表变形规律，评价注浆充填法治理厚松散层条带采空区效果；以济宁岱庄煤矿厚松散层条带采空区为例，采用理论分析、数值计算、地表变形观测和深部岩层光纤监测等方法，对注浆治理前后的采空区地表变形规律对比分析。结果表明：①厚松散层采空区叠加条带式非充分开采影响，地表移动活跃期下沉量减少，后期残余变形占比增大，采用概率积分法和数值计算综合分析采空区地表最大总沉降量为611.8 mm，残余沉降量为157.8 ~ 288.1 mm，采空区地表残余变形对场地拟建高层建筑群影响大；②采用注浆充填法治理后的采空区地表在工后观测期间累计下沉量为-5.6 ~ -1.5 mm，采用深部分布式光纤监测和地表水准观测综合得出工后采空区覆岩沉降量小于1 mm/a，分析得出工后地表变形主要由上部厚松散层沉降引起；③采用注浆充填法可显著缩短采空区上覆岩层移动稳定时间，有效降低采空区深部岩层变形量，计算分析工后地表变形值趋于稳定，采空区场地处于稳定状态，注浆治理效果良好，满足高强度工程建设需要。研究成果可为类似条件采空区地表变形预测、场地稳定性评价及工后治理效果检测提供指导。

To study the surface deformation law of insufficient mining goaf with thick loose layers after grouting, and evaluate the effectiveness of grouting and filling method in treating strip goaf areas, taking a thick loose layer strip goaf of Daizhuang Coal Mine in Jining as an example, theoretical analysis, numerical calculation, surface deformation observation, and deep rock optical fiber monitoring methods were used to compare and analyze the surface deformation laws of the goaf before and after grouting treatment. The results show these as follows. Under the influence of superposition of strip type insufficient mining in the goaf of thick loose layer, the subsidence of goaf decreases during the active period of surface movement, while the residual deformation increases in the later period, the maximum total subsidence of goaf is 611.8 mm and the residual subsidence is 157.8 ~ 288.1 mm by using probability integral method and numerical calculation, the surface residual deformation of goaf has great influence on the proposed high-rise buildings. The cumulative subsidence of the surface in the goaf treated by grouting filling method during observation period after grouting is -5.6 ~ -1.5 mm. The comprehensive analysis of deep distributed optical fiber monitoring and surface leveling observation shows that the subsidence of the overlying rock in the goaf after grouting is less than 1 mm/a, and the analysis shows that the surface deformation after grouting is mainly caused by the settlement of the upper thick loose layer. The adoption of grouting filling method can significantly shorten the movement time of overlying strata in the goaf and effectively reduce the deformation of deep strata in the goaf, calculate and analyze the surface deformation value after grouting tends to be stable, the goaf site is in a stable state, and the grouting treatment effect is good, meeting the needs of high-strength engineering construction. The research results can provide guidance for surface deformation prediction, site stability evaluation and treatment effect detection after grouting in goaf under similar conditions.