A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunnel entrance front slope reinforcing method
The invention discloses a tunnel entrance upward slope reinforcing method, which belongs to the technical field of tunnel construction, and comprises the following steps: S1, dividing a tunnel side upward slope above a tunnel entrance end into an upper-layer upward slope and a lower-layer upward slope from top to bottom, sequentially excavating, and excavating an upward slope platform between the upper-layer upward slope and the lower-layer upward slope during excavation; s2, the upper-layer upward slope is divided into multiple sections of construction areas from top to bottom and sequentially excavated, upward slope platforms are excavated among the sections of construction areas during excavation, and when the sections of construction areas are excavated, the sections of construction areas are divided into multiple stages of areas from top to bottom to be excavated, and anchor protection is conducted step by step; and S3, the lower-layer upward slope is cleared, and anchor protection is conducted on the upward slope surface of the lower-layer upward slope. According to the method, excavation is conducted in a layered, segmented and graded mode, a step-by-step anchoring and protecting mode is adopted in the excavation process, disturbance to the edge and front slope can be reduced as much as possible, the integrity and stability of the edge and front slope can be improved after anchoring and protecting, and the problem of collapse in the later period is avoided.
本发明公开了一种隧道进口仰坡加固方法，属于隧道施工技术领域，包括以下步骤：S1、将隧道进口端上方的隧道边仰坡由上至下划分成上层仰坡和下层仰坡并依次开挖，开挖时在上层仰坡和下层仰坡之间开挖出仰坡平台；S2、将上层仰坡由上到下划分成多段施工区并依次开挖，开挖时在各段施工区之间开挖出仰坡平台，且开挖各段施工区时，将各段施工区由上到下划分成多级区域进行开挖，并逐级进行锚护；S3、清顺下层仰坡，在下层仰坡的仰坡面上进行锚护。通过分层、分段、分级的方式进行开挖，并在开挖过程中采用了逐级锚护方式，能够尽可能的减小对边仰坡的扰动，并在锚护后能够提高边仰坡的整体性和稳定性，避免后期出现塌落问题。
Tunnel entrance front slope reinforcing method
The invention discloses a tunnel entrance upward slope reinforcing method, which belongs to the technical field of tunnel construction, and comprises the following steps: S1, dividing a tunnel side upward slope above a tunnel entrance end into an upper-layer upward slope and a lower-layer upward slope from top to bottom, sequentially excavating, and excavating an upward slope platform between the upper-layer upward slope and the lower-layer upward slope during excavation; s2, the upper-layer upward slope is divided into multiple sections of construction areas from top to bottom and sequentially excavated, upward slope platforms are excavated among the sections of construction areas during excavation, and when the sections of construction areas are excavated, the sections of construction areas are divided into multiple stages of areas from top to bottom to be excavated, and anchor protection is conducted step by step; and S3, the lower-layer upward slope is cleared, and anchor protection is conducted on the upward slope surface of the lower-layer upward slope. According to the method, excavation is conducted in a layered, segmented and graded mode, a step-by-step anchoring and protecting mode is adopted in the excavation process, disturbance to the edge and front slope can be reduced as much as possible, the integrity and stability of the edge and front slope can be improved after anchoring and protecting, and the problem of collapse in the later period is avoided.
本发明公开了一种隧道进口仰坡加固方法，属于隧道施工技术领域，包括以下步骤：S1、将隧道进口端上方的隧道边仰坡由上至下划分成上层仰坡和下层仰坡并依次开挖，开挖时在上层仰坡和下层仰坡之间开挖出仰坡平台；S2、将上层仰坡由上到下划分成多段施工区并依次开挖，开挖时在各段施工区之间开挖出仰坡平台，且开挖各段施工区时，将各段施工区由上到下划分成多级区域进行开挖，并逐级进行锚护；S3、清顺下层仰坡，在下层仰坡的仰坡面上进行锚护。通过分层、分段、分级的方式进行开挖，并在开挖过程中采用了逐级锚护方式，能够尽可能的减小对边仰坡的扰动，并在锚护后能够提高边仰坡的整体性和稳定性，避免后期出现塌落问题。
Tunnel entrance front slope reinforcing method
一种隧道进口仰坡加固方法
PEI WENQIANG (author) / YIN QILIANG (author) / LIU XINYUAN (author) / LIU DEJIA (author) / CHANG YAFEI (author) / SUN CHUANG (author) / ZHANG JIANJUN (author) / JIA BAOXIN (author)
2022-11-18
Patent
Electronic Resource
Chinese
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