临近周边建筑石方微差爆破施工关键技术

Key technologies of Micro-differential blasting stonework close to surrounding buildings

随着爆破技术在工程上的广泛应用,微差爆破作为一种有效的减震技术,得到人们的许多关注。本文针对施工现场临近周边建筑,提出了石方微差爆破施工技术,采用微差爆破及岩石分层开槽方案能极大消除爆破能量对周边建筑物影响。爆破施工必须确保既有设施和周边建筑物的安全,主要体现在施工时应严格控制爆破振动、冲击波、噪声及飞石对居民楼及道路的影响,因此采用浅孔控制爆破和多重安全覆盖防护措施。

With the widespread application of blasting technology in engineering,as an effective shock absorption technology,the micro-differential blasting get many people＇s attention. In this paper,the construction technique of micro-differential blasting of rock and stone is put forward in view of the surrounding buildings near the construction site. The application of the micro-difference blasting and the stratified rock slotting scheme can greatly eliminate the impact of blasting energy on the surrounding buildings. Blasting construction must ensure the safety of the existing facilities and the surrounding buildings,mainly present as the strict control of blasting vibration,shock wave,noise and flying stone on residential buildings and roads during construction. Therefore,shallow hole controlled blasting and multiple safety cover protection Measures are adopted.