A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Existing building underneath pass tunnel advance support system and shock absorption blasting construction method
The invention discloses an existing building underneath pass tunnel advance support system and a damping blasting construction method, and belongs to the technical field of building tunnel construction.The method comprises the steps that firstly, a tunnel damping advance support system is built; then, a blasting pilot tunnel is excavated, and blast holes are formed; arranging peripheral blasting holes and damping holes; auxiliary blasting holes are formed; and finally, overall blasting is conducted. A blasting pilot tunnel is excavated, and blast holes are formed; arranging peripheral blasting holes and damping holes; auxiliary blasting holes are formed; and overall blasting is carried out in the right upper pilot tunnel, the right lower pilot tunnel, the left upper pilot tunnel, the left lower pilot tunnel, the middle upper pilot tunnel and the middle lower pilot tunnel of the tunnel in sequence according to the space sequence. Vibration generated in the blasting process can be effectively reduced, and therefore the influence on an upper-layer existing building is reduced.
本发明公开了一种既有建筑下穿隧道超前支护体系及减震爆破施工方法，属于建筑隧道施工技术领域，所述方法包括：首先，搭建隧道减震超前支护体系；然后开挖爆破导坑，布置炮孔；布置周边爆破眼与减震孔；布置辅助爆破眼；最后进行整体爆破；所述开挖爆破导坑，布置炮孔；布置周边爆破眼与减震孔；布置辅助爆破眼；以及进行整体爆破为按照空间顺序，分别在隧道的右上导坑、右下导坑、左上导坑、左下导坑、中上导坑以及中下导坑依次进行。本发明能够有效减少爆破过程中产生的振动，从而降低对上层既有建筑的影响。
Existing building underneath pass tunnel advance support system and shock absorption blasting construction method
The invention discloses an existing building underneath pass tunnel advance support system and a damping blasting construction method, and belongs to the technical field of building tunnel construction.The method comprises the steps that firstly, a tunnel damping advance support system is built; then, a blasting pilot tunnel is excavated, and blast holes are formed; arranging peripheral blasting holes and damping holes; auxiliary blasting holes are formed; and finally, overall blasting is conducted. A blasting pilot tunnel is excavated, and blast holes are formed; arranging peripheral blasting holes and damping holes; auxiliary blasting holes are formed; and overall blasting is carried out in the right upper pilot tunnel, the right lower pilot tunnel, the left upper pilot tunnel, the left lower pilot tunnel, the middle upper pilot tunnel and the middle lower pilot tunnel of the tunnel in sequence according to the space sequence. Vibration generated in the blasting process can be effectively reduced, and therefore the influence on an upper-layer existing building is reduced.
本发明公开了一种既有建筑下穿隧道超前支护体系及减震爆破施工方法，属于建筑隧道施工技术领域，所述方法包括：首先，搭建隧道减震超前支护体系；然后开挖爆破导坑，布置炮孔；布置周边爆破眼与减震孔；布置辅助爆破眼；最后进行整体爆破；所述开挖爆破导坑，布置炮孔；布置周边爆破眼与减震孔；布置辅助爆破眼；以及进行整体爆破为按照空间顺序，分别在隧道的右上导坑、右下导坑、左上导坑、左下导坑、中上导坑以及中下导坑依次进行。本发明能够有效减少爆破过程中产生的振动，从而降低对上层既有建筑的影响。
Existing building underneath pass tunnel advance support system and shock absorption blasting construction method
既有建筑下穿隧道超前支护体系及减震爆破施工方法
DAI WU (author) / XING XIAOYU (author) / XU PING (author) / YAN WEI (author) / SU YANZHONG (author) / ZHANG JUN (author) / FEI HU (author) / YANG QIAOWEI (author) / ZENG WENHAO (author) / YANG WENBO (author)
2022-11-11
Patent
Electronic Resource
Chinese
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