摘要
运用间隔装药爆破密实饱和粉细砂基,提高饱和粉细砂基的承载能力,是一种快速、有效的地基加固施工方法。选取适合工程实际的线装药量和其他爆破参数是爆破密实砂基的重要内容。文章通过试验,结合沉降观测和静力触探结果,对间隔装药密实深层砂基的效果进行了检验,确定了在吹抛填饱和粉细砂基中进行爆破密实的基本参数,即:最佳处理深度、装药线密度、单孔药量(含底部药量)、孔间距和孔内装药间隔距离、装药部位、起爆方式、爆破次数等。并指出,改进爆破参数和工艺、控制爆破能量对克服爆破密实不均匀、提高爆破密实效果有重要意义。
It is a fast and effective way to consolidate saturated granular sand foundation and improve its carrying capacity by using spacing-explosive. Choosing suitable parameters is important for consolidating sand ground. Combined with sedimentation observation and static touch, the effect of consolidating deep sand ground by spacing charge is tested. The basic parameters are determined, such as best consolidation deep, line density of charge, charge quantity of single pole, space between and within holes, charge position, the manner and the times of blasting. It is significant to improve the effect of consolidation through adjusting parameters and controlling the energy of blasting.
出处
《爆破器材》
CAS
2007年第3期20-24,共5页
Explosive Materials
关键词
饱和砂基
爆破参数
saturated sand ground ,blasting parameter
