深立井极不稳定岩层中马头门的联合修复支护技术

Combined Repair and Support Technology of Ingate of Deep Vertical Shaft Extremely Unstable Rock

结合具体实例,阐述两淮地区深立井极不稳定岩层,损坏马头门如何运用锚网喷、"U"型钢棚、锚索束、高强度钢筋混凝土联合支护,达到修复目的,来抵抗深层地压,确保马头门和井筒相贯线安全施工,达到安全使用的目的。

Combined with specific examples,the paper describes the way to repair the damaged ingate supporting by bolting-wire mesh-shotcreting,anchorage cables,high-strength reinforced concrete,for resisting deep pressure from earth and ensuring the safety construction of the ingate and wellbore intersecting line,achieving the purpose of the safe use.