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A platform for research: civil engineering, architecture and urbanism
Blocking and reinforcing method for long longitudinal slope underground civil air defense cavern
The invention relates to a blocking and reinforcing method for a long longitudinal slope underground civil air defense cavern. The blocking and reinforcing method comprises the following steps that the low-point end of the civil air defense cavern is blocked to form a first blocking wall; backfilling is conducted in the civil air defense cavern through backfilling soil till the height of the civil air defense cavern reaches two thirds of the height; the high-point end of the civil air defense cavern is blocked to form a second blocking wall, and an observation opening is reserved in the upper portion of the second blocking wall; a grouting hole is drilled from the ground to the civil air defense cavern, and a grouting pipe is fixed in the grouting hole; grouting is conducted on the civil air defense cavern through a grouting pipe, the grouting height is observed through an observation opening, and when the civil air defense cavern is filled, grouting is stopped; and the observation opening is blocked. The technical problem that in the prior art, backfilling of the civil air defense cavern close to the tunnel excavation area is prone to causing concrete recharging is solved, and the backfilling compactness of the civil air defense cavern is guaranteed; the bearing capacity and integrity of civil air defense cavern backfilling are guaranteed, and the supporting effect of the backfilled civil air defense cavern on the top load in underground excavation and undercrossing construction is guaranteed.
本发明涉及一种长纵坡地下人防洞室的封堵加固方法，包括以下步骤：对人防洞室的低点端头进行封堵形成第一封堵墙；于人防洞室内采用回填土进行回填，直至人防洞室三分之二的高度；对人防洞室的高点端头进行封堵形成第二封堵墙，并在第二封堵墙上部预留观察口；从地面向人防洞室钻设注浆孔，于注浆孔内固定注浆管；通过注浆管向人防洞室进行注浆，通过观察口观察注浆高度，当人防洞室被填满时，停止注浆；封堵该观察口。本发明解决了现有技术中对距离隧道开挖区域较近的人防洞室的回填易造成混凝土回灌的技术问题，保证了人防洞室回填的密实性；保证了人防洞室回填的承载力及整体性，确保暗挖下穿施工中回填人防洞室对顶部荷载的支撑作用。
Blocking and reinforcing method for long longitudinal slope underground civil air defense cavern
The invention relates to a blocking and reinforcing method for a long longitudinal slope underground civil air defense cavern. The blocking and reinforcing method comprises the following steps that the low-point end of the civil air defense cavern is blocked to form a first blocking wall; backfilling is conducted in the civil air defense cavern through backfilling soil till the height of the civil air defense cavern reaches two thirds of the height; the high-point end of the civil air defense cavern is blocked to form a second blocking wall, and an observation opening is reserved in the upper portion of the second blocking wall; a grouting hole is drilled from the ground to the civil air defense cavern, and a grouting pipe is fixed in the grouting hole; grouting is conducted on the civil air defense cavern through a grouting pipe, the grouting height is observed through an observation opening, and when the civil air defense cavern is filled, grouting is stopped; and the observation opening is blocked. The technical problem that in the prior art, backfilling of the civil air defense cavern close to the tunnel excavation area is prone to causing concrete recharging is solved, and the backfilling compactness of the civil air defense cavern is guaranteed; the bearing capacity and integrity of civil air defense cavern backfilling are guaranteed, and the supporting effect of the backfilled civil air defense cavern on the top load in underground excavation and undercrossing construction is guaranteed.
本发明涉及一种长纵坡地下人防洞室的封堵加固方法，包括以下步骤：对人防洞室的低点端头进行封堵形成第一封堵墙；于人防洞室内采用回填土进行回填，直至人防洞室三分之二的高度；对人防洞室的高点端头进行封堵形成第二封堵墙，并在第二封堵墙上部预留观察口；从地面向人防洞室钻设注浆孔，于注浆孔内固定注浆管；通过注浆管向人防洞室进行注浆，通过观察口观察注浆高度，当人防洞室被填满时，停止注浆；封堵该观察口。本发明解决了现有技术中对距离隧道开挖区域较近的人防洞室的回填易造成混凝土回灌的技术问题，保证了人防洞室回填的密实性；保证了人防洞室回填的承载力及整体性，确保暗挖下穿施工中回填人防洞室对顶部荷载的支撑作用。
Blocking and reinforcing method for long longitudinal slope underground civil air defense cavern
长纵坡地下人防洞室的封堵加固方法
CHEN PENG (author) / PENG JIANGTAO (author) / XIN TAOTAO (author) / HE SAIJUN (author) / CHEN DANFENG (author)
2024-03-15
Patent
Electronic Resource
Chinese
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