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A platform for research: civil engineering, architecture and urbanism
Advanced grouting construction method for underground excavated tunnel
The invention discloses an advanced grouting construction method for an underground excavated tunnel. The method comprises the steps of step I, dividing the section of the tunnel into a first upper pilot tunnel, a second upper pilot tunnel, a first lower pilot tunnel and a second lower pilot tunnel; step II, after pipe shed advance support, performing advanced grouting on the first upper pilot tunnel in the tunnel excavation direction, and excavating and supporting the first upper pilot tunnel; step III, performing grouting reinforcement on the to-be-excavated areas of the first lower pilot tunnel and the second upper pilot tunnel from the first upper pilot tunnel through the excavated and supported space of the first upper pilot tunnel; step IV, excavating and supporting the first lower pilot tunnel, performing grouting reinforcement on the to-be-excavated area of the second lower pilot tunnel from the first lower pilot tunnel through the excavated and supported space of the first lower pilot tunnel; step V, excavating and supporting the second upper pilot tunnel, and then excavating and supporting the second lower pilot tunnel; and step VI, repeating the step II, the step III, the step IV and the step V, and completing tunnel construction. The construction method can shorten the construction period, improve the grouting effect and reduce the construction cost.
本发明公开了一种暗挖隧道的超前注浆施工方法，包括：步骤一：将隧道断面划分为第一上导洞、第二上导洞、第一下导洞和第二下导洞；步骤二：管棚超前支护后，对第一上导洞沿隧道开挖方向超前注浆，开挖和支护第一上导洞；步骤三：利用第一上导洞的已开挖和支护空间，从第一上导洞对第一下导洞和第二上导洞的待开挖区域进行注浆加固；步骤四：开挖和支护第一下导洞；利用第一下导洞的已开挖和支护空间，从第一下导洞对第二下导洞的待开挖区域进行注浆加固；步骤五：开挖和支护第二上导洞，然后开挖和支护第二下导洞；步骤六：重复步骤二、步骤三、步骤四和步骤五，完成隧道施工。该施工方法能够缩短施工周期、提高注浆效果、降低施工成本。
Advanced grouting construction method for underground excavated tunnel
The invention discloses an advanced grouting construction method for an underground excavated tunnel. The method comprises the steps of step I, dividing the section of the tunnel into a first upper pilot tunnel, a second upper pilot tunnel, a first lower pilot tunnel and a second lower pilot tunnel; step II, after pipe shed advance support, performing advanced grouting on the first upper pilot tunnel in the tunnel excavation direction, and excavating and supporting the first upper pilot tunnel; step III, performing grouting reinforcement on the to-be-excavated areas of the first lower pilot tunnel and the second upper pilot tunnel from the first upper pilot tunnel through the excavated and supported space of the first upper pilot tunnel; step IV, excavating and supporting the first lower pilot tunnel, performing grouting reinforcement on the to-be-excavated area of the second lower pilot tunnel from the first lower pilot tunnel through the excavated and supported space of the first lower pilot tunnel; step V, excavating and supporting the second upper pilot tunnel, and then excavating and supporting the second lower pilot tunnel; and step VI, repeating the step II, the step III, the step IV and the step V, and completing tunnel construction. The construction method can shorten the construction period, improve the grouting effect and reduce the construction cost.
本发明公开了一种暗挖隧道的超前注浆施工方法，包括：步骤一：将隧道断面划分为第一上导洞、第二上导洞、第一下导洞和第二下导洞；步骤二：管棚超前支护后，对第一上导洞沿隧道开挖方向超前注浆，开挖和支护第一上导洞；步骤三：利用第一上导洞的已开挖和支护空间，从第一上导洞对第一下导洞和第二上导洞的待开挖区域进行注浆加固；步骤四：开挖和支护第一下导洞；利用第一下导洞的已开挖和支护空间，从第一下导洞对第二下导洞的待开挖区域进行注浆加固；步骤五：开挖和支护第二上导洞，然后开挖和支护第二下导洞；步骤六：重复步骤二、步骤三、步骤四和步骤五，完成隧道施工。该施工方法能够缩短施工周期、提高注浆效果、降低施工成本。
Advanced grouting construction method for underground excavated tunnel
一种暗挖隧道的超前注浆施工方法
XIONG SHENG (author) / LING TAO (author) / ZHOU HAO (author) / YANG MENGHU (author) / XIA ZHENRONG (author) / ZHANG QUNJIAN (author) / WU YIMIN (author) / HU BOLING (author) / YIN CHEN (author)
2020-11-03
Patent
Electronic Resource
Chinese
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