大断面

• The constructional technology in tunnel of great section wind drift sand
  公路大断面风积砂隧道施工技术
• Mapping method for construction profile of mine large cross section chamber
  大断面硐室施工轮廓线的绘制方法
• Large section crossing point timbering technology used in special conditions
  特殊条件下大断面交岔点加固技术
• Application of grouted bolts in large section roadway support of soft rock
  注浆锚杆在软岩大断面巷道支护中的应用
• Practice on bolt and steel mesh support in high inclined and large cross section gateway of
  大断面巷道锚网支护实践
• Application of bolting support for large section open - off cut in sihe mine
  大断面切眼全锚支护技术在寺河矿的首次应用
• Practice of bolt - beam - mesh support for large - section open - off cut in thick coal seam
  厚煤层大断面开切眼锚网梁支护实践
• The construction technology of big section chamber under complex geological condition
  复杂地质条件下大断面硐室施工技术
• Excavation and support technology of large cross section chamber in soft stratum
  松软岩层中大断面硐室掘进与支护技术应用
• Application of anchorage cable supporting technology in roadway with coal seam roof
  锚杆锚索联合支护在大断面巷道中的应用