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在立井井简施工中,掘进与砌壁是两大重要工序。它们之间的配合关系,将直接影响凿井施工进度、质量、安全、效率及成本等。因而在组织立井快速施工中,作业方式选择正确与否,具有重要意义。 我国煤矿立井施工多采用较长段高单行作业方式,因它工序简单、管理方便。但是,维护围岩稳定需要大量的临时支护,辅助时间长,施工材料消耗大等缺点。而短段掘砌交替作业方式是没有临时支护的。与其它作业方式比较,其优点较多。故在超化矿立井施工中采用了短段掘砌交替作业方式,取得了较好的成绩。现将应用情况简介如下:
In vertical well construction, tunneling and wall construction are two important processes. The cooperation between them will directly affect the construction progress, quality, safety, efficiency and cost of the shaft sinking. Therefore, the rapid construction of tissue shaft, the operating mode is correct or not, is of great significance. China’s coal mine shaft construction more long-term use of high single-line operation, because of its simple process, easy management. However, maintaining the stability of surrounding rock requires a large number of temporary support, auxiliary a long time, the construction material consumption and other shortcomings. The short section of excavation alternate mode of operation is not temporary support. Compared with other methods of operation, its advantages are more. Therefore, in the construction of super-mine vertical shaft excavation using a short section of the alternate mode of operation, and achieved good results. Now the application of briefings are as follows: