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静态爆破开挖系90年代初新兴的一种开挖方式,广泛用于解决无法适用常规明爆条件下的爆破,具备无震动、无飞石、无噪音、无毒污染等优点。其原理为人工造孔后,在静态破石剂的作用下使岩石胀裂、产生裂缝,再用风镐解小、破除,达到开挖目的。静态爆破开挖在现行预算定额中属缺项,现将施工单位通过实测法得出的结果对其单价组成进行分析,为今后新的定额编制及同类项目概预算提供参考资料。
Static Blasting Excavation is a new excavation method in the early 1990s. It is widely used to solve the blasting problem that can not be applied under the conventional blasting conditions. It has the advantages of no vibration, no fly stone, no noise and no toxic pollution. The principle of man-made hole, the role of static broken rock under the action of the rock burst, cracks, re-use the wind-pick solution small, get rid of, to achieve the purpose of excavation. Static blasting excavation in the current budget quota is a missing item, now the construction unit through the actual test results obtained by the analysis of its unit price composition for the future of the new quotas and budget estimates for similar projects to provide reference materials.