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1983年3月,在西南冶金地质勘探公司314队3分队东川铜矿张口洞,开展了液动冲击回转钻进试验.试验使用了四种类型的液动冲击回转钻具,两个钻孔(Z KⅡ-1,Z KⅡ-0)钻进了524.95米.不同类型冲击器与钻头钻进的工作量列于表1.由于应用冲击回转钻进技术,加快了整个施工进度,提前三个月完成全年任务.下面简要介绍试验概况.
In March 1983, a hydraulic impact rotary drilling test was carried out in Zhangkou Cave, Dongchuan Copper Mine, Unit 3, 314 team of Southwest Metallurgical Geological Exploration Company.The test used four types of hydraulic impact rotary drilling tools, two drilling holes (Z KⅡ-1, Z KⅡ-0) drilled 524.95 meters. The workload of different types of impactor and bit drilling are shown in Table 1. As a result of the application of impact rotary drilling technology, to speed up the entire construction progress, three Month to complete the task throughout the year. The following briefly introduces the test profile.