Two big gate constructions were demolished by use of directional controlled blasting.
采用定向控制爆破方法拆除两座大门楼。
Therefore, it is very important to study the mechanism and the related parameters of notched directional splitting controlled blasting.
因此研究切槽定向断裂控制爆破的爆破机理及相关参数，具有十分重要的意义。
Based on the theory of dynamic fracture mechanics, the mechanism of crack-forming among shot holes in the directional split of rock by controlled blasting is expounded.
基于断裂动力学理论，文章论述了切缝药包定向断裂控制爆破炮孔间贯通裂纹形成的机理。
Under complicated conditions, a building was partially demolished through controlled blasting. Mechanical pre-cutting was carried out before the building was collapsed by folding directional blasting.
在复杂环境条件下对一楼房进行保护性部分爆破拆除，采用机械预切割、折叠定向爆破倒塌的控制拆除方案。
The research results can provide theoretical basis for directional fracture with controlled blasting of jointed rock mass.
研究结果可为节理岩体定向断裂控制爆破提供理论依据。
A gymnasium stadium with a "Z-shaped" framework structure was demolished using the dual directional folding controlled blasting technology.
采用双向折叠控制爆破技术拆除了一座“Z”型框架结构的体育场看台。
A gymnasium stadium with a "Z-shaped" framework structure was demolished using the dual directional folding controlled blasting technology.
采用双向折叠控制爆破技术拆除了一座“Z”型框架结构的体育场看台。
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