朱铎
ZHU Duo~(1,2) (1.Gansu Geo-groundwork Co.Ltd,Lanzhou 730000,China;2.Gansu Mineral Research and Exploitation Institute,Lanzhou 730000,China)

• 1:甘肃地质基础工程公司 兰州730000
• 2:甘肃矿业研究院
• 3:兰州730000

摘要(Abstract)：

被拆爆的跳伞塔为薄壁筒形变截面钢筋混凝土结构,总高度为60.2m,总重约为442t。塔体外三个不同方向装有跳伞大臂及两个环形跳台,外形结构特殊,周围环境较复杂。为确保跳伞塔顺利倒塌,在确定倒塌方向、制定爆破方案、设计爆破缺口、减小爆破震动等方面,都经过反复论证和科学验算后,才予以实施。经过精心组织和施工,跳伞塔爆破拆除取得圆满成功。
60.2m high and totally 442t in weight,the object to be demolished was a parachute tower in the shape of cylinder with thin wall structured of reinforeced concrete in varied sections,and moreover,the tower,being of very special outer structure,installed three large hands and two circle platforms outside its body in three different directions and situated in complicated surroundings.For ensuring a smooth directional collapse the blasting operation was carried out after repeated discussion and scientific calculation of the blasting program,the designed blasting cut as well as the measures of minimizing blasting vibration.The blasting was a very successful one contributing to the careful organization and construction of the project.

关键词(KeyWords)： 跳伞塔;定向爆破;高耸建筑物;力学分析
Parachute tower;Directional blasting;Towering building;Mechanical analysis

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 朱铎
ZHU Duo~(1,2) (1.Gansu Geo-groundwork Co.Ltd,Lanzhou 730000,China;2.Gansu Mineral Research and Exploitation Institute,Lanzhou 730000,China)

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