岩土力学2012，Vol.33Issue(11)：3374-3384,11.
让压型锚索箱梁支护系统组合构件耦合性能分析及应用
Analysis of combination components coupling of pressure relief anchor box beam support system and application
摘要
Abstract
The current research situations of anchor beam support system and composite members coupling support are summarized; and the necessity and significance of coupling support research of composite members in anchor beam support system are also researched. High strength pressure relief anchor box beam support system is developed, which is guided by the support idea: controlling at first, pressure yielding behind and then resistance. The coupling efficiency weights of composite members are obtained through the method of analytic hierarchy process; and utilization ratio of whole performance, coupling efficiency and control effect of surrounding rock of members in support system are put forward. The results of thirteen numerical test schemes show that coupling efficiency of ?12c+f22 cable, ?12b+f22 cable and II 12a+f17.8 cable support system are good; the coupling efficiency of support system is markedly affected by cable type; increasing prestressing force is good for raising whole utilization ratio and coupling efficiency, and improving control effect of surrounding rock. The force measuring anchor box beams are designed and made; and the ? 12b+f22 anchor beam support system is applied to field test. Monitoring results show that the utilization ratio of whole performance is 54.51%; the coupling efficiency of members is 75.61%; members of system keep pace with each other in load supporting; roof settlement in coal roadway is 148 mm and walls displacement of roadway is 180 mm; and surrouding rock deformation is controlled well during roadway excavation.关键词
箱型支护梁/锚索让压环/组合构件/耦合性能/数值试验/现场试验Key words
box supporting beam/ anchor yielding link/ composite members/ coupling efficiency/ numerical test/ field test分类
矿业与冶金引用本文复制引用
王琦,李术才,李为腾,李智,江贝,苗素军,李海燕,王德超,王洪涛..让压型锚索箱梁支护系统组合构件耦合性能分析及应用[J].岩土力学,2012,33(11):3374-3384,11.基金项目
国家自然科学基金青年科学基金资助项目(No.51209127) （No.51209127）
教育部博士点基金(No.20110131110030) （No.20110131110030）
山东省自然科学基金面上项目(No.ZR2009FM009). （No.ZR2009FM009）
