Abstract:
Based on the requirements of harmonious development of coal mining and environmental protection,the reducing subsidence technologies being used were studied in China,and the problems in their application were analyzed,then it was proposed that the comprehensive technology of reducing subsidence would be the development orientation of reducing subsidence technologies in China.Mechanism and application principles of five kinds of comprehensive technologies of reducing subsidence were introduced,which included strip mining combined with abscission layer grouting,strip mining combined with waste rock area gap grouting,strip mining combined with abscission layer grouting and waste rock area gap grouting,abscission layer grouting combined with waste rock area gap grouting,strip mining combined with backfill mining.With the increase of efforts to reduce subsidence and environmental disaster a,the rapid development of industrialization and urbanization in China,comprehensive technology of surface subsidence-reducing would develop well,which is better to meet the need of reducing subsidence.Comprehensive technology of surface subsidence-reducing is a new surface subsidence-reducing initiative,interaction mechanism between different technologies in comprehensive technology of surface subsidence-reducing,construction technology and evaluation mechanism of reducing subsidence need to be improved and studied in future.