It is a difficult problem to demolish large building bases by controlled blasting techniques within a narrow area of concentration plant.
在选矿车间的狭小范围内，用控爆技术拆除大型构筑物的基础是一大难题。
It is difficult to demolish structure which has lower height of gravity center, larger supporting surface and mortar rubble with demolition blasting in city.
在城市拆除爆破中，用小孔爆破法拆除重心很低、支承面大的浆砌片石构筑物难度很大。
In order to demolish an old internally frame reinforced four story building complex in the city, at first, the directional blast was adopted and the blasting drills had been practised.
为了快速拆除杭州市内一幢内部框架加固的四层古式建筑楼房，原设计采用向南侧定向坍塌的爆破方案，并已钻眼确定爆破缺口。
The hydraulic blasting was adopted to safely demolish the bridge after analyzing the blasting programs and utilizing the structural characteristics of cored slab.
经拆除方案论证，利用桥板空心可以注水的结构特征，采用水压爆破法安全拆除。
In recent years, it is usually to demolish the reinforced concrete brace system with blasting in Shanghai.
近年来，上海地区深基坑支撑围护体系通常采用爆破法拆除。
A weak loose blasting is adopted to successfully demolish the jamb wall of wall at edge of slope, the blasting safety is ensured in a complex environment.
如何保证在复杂环境条件下的爆破安全，位于坡顶边缘的提灌站出水池胸墙采用弱松爆破拆除达到了预期效果。
In the oriented blasting, proper demolition parameters, boring pattern and orienting devices are chosen in order to demolish a brick chimney safely and exactly according to the designed direction.
采用定向控制爆破，选用合理爆破参数、炮眼排列、导向装置，准确地按设计方向，安全地拆除了砖质烟囱。
Using underwater blasting to demolish the wrack in the waterway is a rapid, effective and economical means.
水下爆破沉船清理航道是一种快速、有效、经济的手段。
The traditional way of drilling is replaced by pre-plugged in shot hole the reinforced concrete braces when we demolish the reinforced concrete braces at roundation pit by blasting.
介绍了在高层建筑物钢筋混凝土基坑围护系统拆除爆破工程中，采用预先埋设炮孔的方法取代传统的钻眼法，并对预先埋设炮孔法的工艺流程以及施工中一些问题进行了初步研究。
The traditional way of drilling is replaced by pre-plugged in shot hole the reinforced concrete braces when we demolish the reinforced concrete braces at roundation pit by blasting.
介绍了在高层建筑物钢筋混凝土基坑围护系统拆除爆破工程中，采用预先埋设炮孔的方法取代传统的钻眼法，并对预先埋设炮孔法的工艺流程以及施工中一些问题进行了初步研究。
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