1) Blasting cut
爆破切口
1.
Directional controlled blasting was used to demolish a 45-meter-high brick-structured chimney, and the position of the blasting cut was properly heightened according to the structure of the chimney and the complicated environment.
根据周围的环境和该烟囱本身的结构特点,选择了合理的爆破切口和爆破参数,以及烟囱爆破的安全防护措施。
2.
This paper focused on the defined method of the blasting cut,the selection of rational blasting parameters,the execution of the trail-blasting solution and the pretreatment method,corresponding safety precautions and the controlling method of blasting and touching vibration.
详细介绍了爆破切口的确定方法、爆破参数选取、起爆顺序的确定,以及预处理方法、安全防护措施、爆破和塌落振动控制措施。
3.
The form of blasting cut is experimentally studied.
针对壁体材料多样、结构复杂的高耸建筑物的爆破拆除,通过实验研究确定了爆破切口形式,运用力学理论推导了余留支撑体所对应的圆心角和爆破切口高度计算公式,并在工程实践中得到验证。
2) blasting notch
爆破切口
1.
The choice of blasting notch configuration,the determination of blasting parameters and the taken technical measures of a 45-metre-high brick chimney by directional folded in complicated environment are introduced,it is hoped that this paper can accumulate some experiences for the similar engineerings.
介绍了复杂环境下45 m高砖烟囱单向折叠爆破拆除时,选择的爆破切口型式和爆破参数以及采取的主要技术措施等。
2.
From analyzing the mechanics of axis rotation of chimney after being blasted, and rupture form of blasting notch.
从烟囱施爆后做定轴转动的力学分析入手,结合爆破切口的断裂形式,讨论支反力的变化情况,得出了前冲的原因,并推导了前冲距离的计算公式。
3) Composite blasting cut
复式爆破切口
4) Central angle of blasting gap
爆破切口圆心角
5) circular angle of blasting cut
爆破切口园心角
1.
The calculating results indicate that frontl support part has to be pressed terminally and circular angle of blasting cut - out is larger than substraction of half circular angle of terminally pressed area from π.
砖烟囱的爆破切口园心角应在180°～210°。
6) Blasting cutting
爆破切割
1.
The techniques of blasting cutting a wreck to clear up the waterway are introduced.
介绍了一例运用爆破切割技术对沉船切割解体进行航道清理的相关技术与工艺。
补充资料：巴伦斯氏切口