【摘要】 在济南东南外环路５＋０００～５＋２２０区段爆破设计施工中，正确分析岩体构造，合理选取硐室控制爆破参数，适当放大药包间距，取得了良好的效果。与常规设计相比降低硐室掘进工程量１０％，降低爆破成本约４万元。更多还原

【Abstract】 The excellent effect has achieved in blasting construction of 5+000～5+220 region of external cycling road of Jinan south-east through correct rock constitution analysis,leasonable selecting chamber,correct control blasting parameter and siutable extension distance between satchel charges. The dig engineering quantity of chamber is decreased by 10% and the blasting cost is decreased by about 0.04 million yuan compared with ordinary engineering design.更多还原