Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for blasting demolition of prestressed concrete continuous box girder bridge
The invention relates to the technical field of blasting demolition, and discloses a prestressed concrete continuous box girder bridge blasting demolition construction method which comprises the following steps: S1, trepanning; s2, anti-falling pieces on the two sides are installed; s3, pre-burying the explosive; s4, installation of the detonation device; s5, laying a bottom surface buffer layer; and S6, the explosive is detonated, and broken stones generated after the bridge is detonated are cleared and transported. The explosive embedded holes are distributed in the top of the bridge deck bridge in a matrix mode, so that the whole top of the bridge deck bridge can be blasted through a point-division blasting mode, in addition, based on inclined arrangement of the sunken holes, rapid separation of the upper portion and the lower portion after blasting of the top of the bridge deck bridge is facilitated, and the explosive embedded holes in the same group are composed of the four sunken holes, so that the explosive embedded holes in the same group are more uniform. And after blasting, the top of the bridge deck bridge is easily and quickly separated out in a circular truncated cone shape.
本发明涉及爆破拆除技术领域，公开了一种预应力混凝土连续箱梁桥爆破拆除的施工方法，包括以下步骤：S1、开孔；S2、两侧防坠件安装；S3、炸药预埋；S4、引爆装置安装；S5、底面缓冲层铺设；S6、引爆炸药并对桥梁引爆后的碎石进行清运。本发明中炸药预埋孔呈矩阵的方式分布在桥面桥梁顶部，这样通过分点爆破的方式有助于桥面桥梁顶部整体被爆破，另外，基于下沉孔的倾斜设置，有助于在桥面桥梁顶部爆破后上下快速分离，且同组的炸药预埋孔是由四个下沉孔组成，则爆破后，桥面桥梁顶部易呈圆台状快速分离出来。
Construction method for blasting demolition of prestressed concrete continuous box girder bridge
The invention relates to the technical field of blasting demolition, and discloses a prestressed concrete continuous box girder bridge blasting demolition construction method which comprises the following steps: S1, trepanning; s2, anti-falling pieces on the two sides are installed; s3, pre-burying the explosive; s4, installation of the detonation device; s5, laying a bottom surface buffer layer; and S6, the explosive is detonated, and broken stones generated after the bridge is detonated are cleared and transported. The explosive embedded holes are distributed in the top of the bridge deck bridge in a matrix mode, so that the whole top of the bridge deck bridge can be blasted through a point-division blasting mode, in addition, based on inclined arrangement of the sunken holes, rapid separation of the upper portion and the lower portion after blasting of the top of the bridge deck bridge is facilitated, and the explosive embedded holes in the same group are composed of the four sunken holes, so that the explosive embedded holes in the same group are more uniform. And after blasting, the top of the bridge deck bridge is easily and quickly separated out in a circular truncated cone shape.
本发明涉及爆破拆除技术领域，公开了一种预应力混凝土连续箱梁桥爆破拆除的施工方法，包括以下步骤：S1、开孔；S2、两侧防坠件安装；S3、炸药预埋；S4、引爆装置安装；S5、底面缓冲层铺设；S6、引爆炸药并对桥梁引爆后的碎石进行清运。本发明中炸药预埋孔呈矩阵的方式分布在桥面桥梁顶部，这样通过分点爆破的方式有助于桥面桥梁顶部整体被爆破，另外，基于下沉孔的倾斜设置，有助于在桥面桥梁顶部爆破后上下快速分离，且同组的炸药预埋孔是由四个下沉孔组成，则爆破后，桥面桥梁顶部易呈圆台状快速分离出来。
Construction method for blasting demolition of prestressed concrete continuous box girder bridge
一种预应力混凝土连续箱梁桥爆破拆除的施工方法
DAI LIN (Autor:in) / HUANG ZHIYONG (Autor:in) / DAI JIAHUI (Autor:in)
30.04.2024
Patent
Elektronische Ressource
Chinesisch
Construction method for blasting demolition of prestressed concrete continuous box girder bridge
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