The technical problems encountered in demolition of the over-pass bridge at Zhonghua Avenue in the city of Qiqihar by blasting, and the solutions to them are detailed.
详细论述了齐齐哈尔市中华路立交桥爆破拆除施工中所遇到的各种技术问题及解决办法。
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 this paper, some examples of demolition of old city buildings by controlled blasting are described.
本文介绍了拆除城市旧建筑物的几个实例。
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