Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rapid excavation method for suspension bridge tunnel anchor
The invention discloses a rapid excavation method of a suspension bridge tunnel anchor. The method is used for blasting excavation of a mountain rock stratum, and comprises the following steps: dividing a first tunnel into a plurality of first sections in advance, equally dividing each first section into a first arc part and a first bottom, and performing two-step blasting excavation on every first section, wherein the first arch part is excavated forwards for M times in sequence according to the inclination angle of the first section, and then the first bottom is excavated downwards for one time; and dividing a second tunnel into a plurality of second sections in advance, equally dividing each second section into a second arch part and a second bottom, and performing two-step blasting excavation, wherein the second arch part is excavated forwards for N times in sequence according to the inclination angle of the second section, and then the second bottom is excavated downwards according to the section of the second section; and M and N are natural numbers, and the second tunnel is communicated with the first tunnel, and the section and inclination angle of the second tunnel are larger than those of the first tunnel. The method is suitable for large-section and large-inclination-angle tunnel type anchors, rapid construction can be achieved, and the construction period is shortened.
本发明公开了一种悬索桥隧道锚的快速开挖方法，对山体岩层进行爆破开挖，包括：预先将第一隧道划分为多个第一节段，对每个第一节段均分第一拱部和第一底部两台阶爆破开挖；其中，根据第一节段的倾角对第一拱部向前依次开挖M次，再对第一底部向下开挖一次；预先将第二隧道划分为多个第二节段，对每个第二节段均分第二拱部和第二底部两台阶爆破开挖；其中，根据第二节段的倾角对第二拱部向前依次开挖N次，再根据第二节段的断面对第二底部向下开挖；M、N均为自然数，第二隧道与第一隧道连通，且其断面和倾角均大于第一隧道。本发明适用于大断面、大倾角的隧道式锚锭，且能够快速施工、缩短工期。
Rapid excavation method for suspension bridge tunnel anchor
The invention discloses a rapid excavation method of a suspension bridge tunnel anchor. The method is used for blasting excavation of a mountain rock stratum, and comprises the following steps: dividing a first tunnel into a plurality of first sections in advance, equally dividing each first section into a first arc part and a first bottom, and performing two-step blasting excavation on every first section, wherein the first arch part is excavated forwards for M times in sequence according to the inclination angle of the first section, and then the first bottom is excavated downwards for one time; and dividing a second tunnel into a plurality of second sections in advance, equally dividing each second section into a second arch part and a second bottom, and performing two-step blasting excavation, wherein the second arch part is excavated forwards for N times in sequence according to the inclination angle of the second section, and then the second bottom is excavated downwards according to the section of the second section; and M and N are natural numbers, and the second tunnel is communicated with the first tunnel, and the section and inclination angle of the second tunnel are larger than those of the first tunnel. The method is suitable for large-section and large-inclination-angle tunnel type anchors, rapid construction can be achieved, and the construction period is shortened.
本发明公开了一种悬索桥隧道锚的快速开挖方法，对山体岩层进行爆破开挖，包括：预先将第一隧道划分为多个第一节段，对每个第一节段均分第一拱部和第一底部两台阶爆破开挖；其中，根据第一节段的倾角对第一拱部向前依次开挖M次，再对第一底部向下开挖一次；预先将第二隧道划分为多个第二节段，对每个第二节段均分第二拱部和第二底部两台阶爆破开挖；其中，根据第二节段的倾角对第二拱部向前依次开挖N次，再根据第二节段的断面对第二底部向下开挖；M、N均为自然数，第二隧道与第一隧道连通，且其断面和倾角均大于第一隧道。本发明适用于大断面、大倾角的隧道式锚锭，且能够快速施工、缩短工期。
Rapid excavation method for suspension bridge tunnel anchor
悬索桥隧道锚的快速开挖方法
PAN SHENGPING (Autor:in) / LI YANZHE (Autor:in) / DUAN MIAOQI (Autor:in) / WANG RUI (Autor:in) / LI PEIJIE (Autor:in) / SHI DAIXUAN (Autor:in) / SHU HAIHUA (Autor:in)
28.04.2020
Patent
Elektronische Ressource
Chinesisch
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