【摘要】 引细入汤工程八个施工支洞总长2850 m,坡度大,断面尺寸不同,成洞质量要求高。施工中采用了中央楔形掏槽、周边光爆的开挖技术,并随工程及地质条件的变化及时调整技术参数,使斜井成洞质量达到了工程要求。更多还原

【Abstract】 The excavation technology of central V-type cut and smooth blasting around were adopted in implementation,meanwhile,the technological parameters were adjusted according to engineering and geological conditions to meet the requirments of quality of inclined shaft.更多还原