A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for high-notch blasting demolition of thin-wall reinforced concrete chimney
The invention relates to the technical field of engineering blasting, in particular to a method for the high-notch blasting demolition of a thin-wall reinforced concrete chimney. The method includes the steps of step 1, determining the collapse direction of the chimney and notch parameters according to the surrounding environment of the chimney, the height of the chimney and a chimney flue; step 2, pretreating a notch; step 3, forming a directional window and a positioning hole; step 4, forming a shot hole in a position where the notch is formed, and conducting charging to set a detonating network; and step 5, blasting the chimney. According to the method for the high-notch blasting demolition of the thin-wall reinforced concrete chimney, a high-position notch mode is used, an upper barrel body is lowered in the dumping process, a lower barrel body is dismantled through gravity, and the dumping coverage range of the whole chimney can be effectively reduced; and when the method is used in construction, the two initial closing angles of the high-notch are accurately controlled to be the same in size by adopting a mode of drilling by a hollow drill, so that the chimney is stressed uniformly and symmetrically, and the controllability of the dumping direction of the chimney is improved.
本发明涉及工程爆破技术领域，具体而言涉及高切口爆破拆除薄壁钢筋混凝土烟囱的方法，包括以下步骤：步骤1、根据烟囱周围环境以及烟囱高度、烟囱烟道确定烟囱倒塌方向以及切口参数；步骤2、对切口进行预处理；步骤3、开设定向窗和定位孔；步骤4、对形成切口的位置设置炮眼，并装药设置起爆网络；步骤5、对烟囱进行爆破。本发明使用高位切口的方式，使上部筒体在倾倒的过程中同时发生下座，将下部筒体利用重力拆除，并可以有效的降低整个烟囱的倾倒覆盖范围，另外在本发明在施工中，通过使用空心钻打孔的方式，精准的控制高位切口的两个初始闭合角大小相同，使烟囱受力均匀对称，增加烟囱倾倒方向的可控性。
Method for high-notch blasting demolition of thin-wall reinforced concrete chimney
The invention relates to the technical field of engineering blasting, in particular to a method for the high-notch blasting demolition of a thin-wall reinforced concrete chimney. The method includes the steps of step 1, determining the collapse direction of the chimney and notch parameters according to the surrounding environment of the chimney, the height of the chimney and a chimney flue; step 2, pretreating a notch; step 3, forming a directional window and a positioning hole; step 4, forming a shot hole in a position where the notch is formed, and conducting charging to set a detonating network; and step 5, blasting the chimney. According to the method for the high-notch blasting demolition of the thin-wall reinforced concrete chimney, a high-position notch mode is used, an upper barrel body is lowered in the dumping process, a lower barrel body is dismantled through gravity, and the dumping coverage range of the whole chimney can be effectively reduced; and when the method is used in construction, the two initial closing angles of the high-notch are accurately controlled to be the same in size by adopting a mode of drilling by a hollow drill, so that the chimney is stressed uniformly and symmetrically, and the controllability of the dumping direction of the chimney is improved.
本发明涉及工程爆破技术领域，具体而言涉及高切口爆破拆除薄壁钢筋混凝土烟囱的方法，包括以下步骤：步骤1、根据烟囱周围环境以及烟囱高度、烟囱烟道确定烟囱倒塌方向以及切口参数；步骤2、对切口进行预处理；步骤3、开设定向窗和定位孔；步骤4、对形成切口的位置设置炮眼，并装药设置起爆网络；步骤5、对烟囱进行爆破。本发明使用高位切口的方式，使上部筒体在倾倒的过程中同时发生下座，将下部筒体利用重力拆除，并可以有效的降低整个烟囱的倾倒覆盖范围，另外在本发明在施工中，通过使用空心钻打孔的方式，精准的控制高位切口的两个初始闭合角大小相同，使烟囱受力均匀对称，增加烟囱倾倒方向的可控性。
Method for high-notch blasting demolition of thin-wall reinforced concrete chimney
高切口爆破拆除薄壁钢筋混凝土烟囱的方法
LIU DI (author) / SUN JIAN (author) / TANG YI (author) / SONG WEICHAO (author) / HUANG QUANYONG (author) / GOU XINPING (author) / LIN YONGQIANG (author) / HE QINGJUN (author) / SUN FEI (author)
2021-08-20
Patent
Electronic Resource
Chinese
Failure Law of Supporting Part of Reinforced Concrete Chimney by Blasting Demolition
| British Library Conference Proceedings | 2012
Failure Law of Supporting Part of Reinforced Concrete Chimney by Blasting Demolition
| Trans Tech Publications | 2012
| British Library Conference Proceedings | 2012
| European Patent Office | 2024