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通过对大漾二级公路K2+340～ +420段原路基高陡边坡采用控制药室爆破加预裂爆破的施工的方案 ,取得了较明显的经济效益和实用性
Through the project of controlling the high-steep slope of K2 + 340 ~ +420 subgrade of Dayang secondary roadway to control the chamber explosion and pre-cracking blasting, the obvious economic benefits and practicality have been obtained