静态爆破法在深圳地铁施工中的应用

Application of Static Blasting Technology in the Shenzhen Metro

静态爆破是近年来发展起来的一种新型爆破施工技术,它可在无震动、无飞石,无噪音、无污染的条件下破碎或切割岩石或混凝土构筑物。深圳地铁2号线东延线土建工程安托山站—侨香站区间矿山法施工竖井系选用此工法在2 500 mm×3 000 mm雨水箱涵附近成功地进行了中、微风化花岗岩开挖施工,确保了雨水箱涵的安全性。

Static blasting is a construction technology developed in recent years that can break and cut rocks or concrete without vibration,flying stones,noise,or pollution.This method was adopted in the shaft construction between the Antuoshan and Qiaoxiang Stations of the East Extension Line of the Shenzhen Metro line 2;the shaft was successfully excavated in the medium and slightly weathered granite,which is close to a 2500×3000 mm water box culvert.This technique ensured the safety of the water box culvert.