夾皮溝鑛在探鑛掘进效率上,现在一般的成绩,已经達到90cm以上,惟在總局向繼續提高效率的号召下,我们仍在积极不断的进行研究,以便进一步提高。在一月份开始,领导上即组织了一部分技术人员与工人,分頭深入坑口,进行鏧岩试验。对於錐型、楔型和李慶萱同志的藥壶式掏槽鏧岩方法,均曾作了几次试验,但均未得到最後成功。如试验過的锥型、楔型的鏧岩爆破方法,虽然掏心爆發较好,但因不能齐發,又因掏心眼底舆顶眼底、底眼 At Jiapigou Mine, the average performance of exploration and excavation has reached more than 90cm. However, under the call of the SAO to continue to improve its efficiency, we are still conducting continuous research to further improve it. In January, the leaders organized a group of technicians and workers and went deep into the pit to carry out the rock test. For the conical, wedge and Comrade Li Qingxuan medicine pot cut rock method, have made several tests, but did not get the final success. As tested conical, wedge-type rock blasting method, although the heart outbreak is better, but because of not Qi Qi, because of dig their hearts and eyes top eye bottom, bottom eye