三一旋挖钻机工法讲座(11)——涉及“半边岩”工况的旋挖钻机钻进工法

Working method lecture of SANY rotary drilling rig(11)——The rotary drilling construction method of half rock conditions

在讲座(7)中介绍了"岩溶地质的旋挖钻机成孔施工工法",虽然从钻具的改进、溶洞的穿越方式以及事故预防和处理等方面对旋挖钻机适用于岩溶地质的施工难点、工法要点做了分析,但是对于斜孔、塌孔等常见的事故处理并没有详细涉及,而通过近期的施工实践,在已有的各种处理手段以及工况的处理上加以补充,如本期将要介绍到的"半边岩"问题。

In the seminar 7,we introduced the karst geology into the hole rotary drilling rig construction method'.Although improved the drill,the cave across the way and accident prevention and treatment in terms of rotary drilling rig for the construction of karst geology difficult engineering methods were analyzed,but the slant-hole,hole collapse and other common accidents were not detailed.And by the recent construction practice,the various means of disposing of the existing conditions and the handling will be added,such as this issue will introduce the rock side problem.