A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Existing retaining wall reinforcing construction method and reinforcing structure thereof
The invention discloses an existing retaining wall reinforcing construction method. The existing retaining wall reinforcing construction method comprises the steps that (1) the surface of an existing retaining wall is cleaned, and manual hole digging piles are positioned; (2) the manual hole digging piles are excavated, a reinforcing mesh is laid on the surface of the existing retaining wall, and concrete is sprayed; 3) the position of each cross beam and the position of each anchor rod hole are positioned, and each anchor rod is drilled; (4) a reinforcement cage is lowered, and the anchor rods are placed; (5) the position of the reinforcement cage is fixed, the reinforcement cage and the anchor rods are welded, channel steel cross beams are laid, and the anchor rods are tensioned and locked for the first time; (6) the manual hole digging piles and the anchoring sections of the anchor rods are poured; and (7) secondary tensioning is conducted on the anchor rods, grouting is conducted on the free sections of the anchor rods, locking is conducted after the designed drawing strength is achieved, and pouring is conducted on all the cross beams. According to the construction method, the manual hole digging piles, reinforced concrete panels, channel steel cross beams and anchor rod structures are additionally arranged, so that the manual hole digging piles and the existing retaining wall form a door type supporting structure, construction is safe, the reinforcing effect is good, and therefore the slope stability and the top building foundation are not affected.
既有挡土墙加固施工方法。包括：1)对既有挡土墙表面进行清理，定位人工挖孔桩位置；2)开挖人工挖孔桩，在既有挡土墙表面铺设钢筋网，并喷射混凝土；3)定位横梁位置、锚杆孔位置，进行锚杆钻孔；4)下放钢筋笼，放置锚杆；5)对钢筋笼进行位置固定，将钢筋笼与锚杆进行焊接，铺设槽钢横梁，对锚杆进行初次张拉并锁定；6)对人工挖孔桩与锚杆锚固段进行浇筑；7)对锚杆进行二次张拉，对锚杆自由段进行注浆，达到设计拉拔强度后锁定，对上述所有横梁进行浇筑。该施工方法增设人工挖孔桩、钢筋混凝土面板、槽钢横梁和锚杆结构，使得人工挖孔桩与既有挡土墙形成门式支护结构，施工安全且加固效果好，不影响边坡稳定性和顶部建筑基础。
Existing retaining wall reinforcing construction method and reinforcing structure thereof
The invention discloses an existing retaining wall reinforcing construction method. The existing retaining wall reinforcing construction method comprises the steps that (1) the surface of an existing retaining wall is cleaned, and manual hole digging piles are positioned; (2) the manual hole digging piles are excavated, a reinforcing mesh is laid on the surface of the existing retaining wall, and concrete is sprayed; 3) the position of each cross beam and the position of each anchor rod hole are positioned, and each anchor rod is drilled; (4) a reinforcement cage is lowered, and the anchor rods are placed; (5) the position of the reinforcement cage is fixed, the reinforcement cage and the anchor rods are welded, channel steel cross beams are laid, and the anchor rods are tensioned and locked for the first time; (6) the manual hole digging piles and the anchoring sections of the anchor rods are poured; and (7) secondary tensioning is conducted on the anchor rods, grouting is conducted on the free sections of the anchor rods, locking is conducted after the designed drawing strength is achieved, and pouring is conducted on all the cross beams. According to the construction method, the manual hole digging piles, reinforced concrete panels, channel steel cross beams and anchor rod structures are additionally arranged, so that the manual hole digging piles and the existing retaining wall form a door type supporting structure, construction is safe, the reinforcing effect is good, and therefore the slope stability and the top building foundation are not affected.
既有挡土墙加固施工方法。包括：1)对既有挡土墙表面进行清理，定位人工挖孔桩位置；2)开挖人工挖孔桩，在既有挡土墙表面铺设钢筋网，并喷射混凝土；3)定位横梁位置、锚杆孔位置，进行锚杆钻孔；4)下放钢筋笼，放置锚杆；5)对钢筋笼进行位置固定，将钢筋笼与锚杆进行焊接，铺设槽钢横梁，对锚杆进行初次张拉并锁定；6)对人工挖孔桩与锚杆锚固段进行浇筑；7)对锚杆进行二次张拉，对锚杆自由段进行注浆，达到设计拉拔强度后锁定，对上述所有横梁进行浇筑。该施工方法增设人工挖孔桩、钢筋混凝土面板、槽钢横梁和锚杆结构，使得人工挖孔桩与既有挡土墙形成门式支护结构，施工安全且加固效果好，不影响边坡稳定性和顶部建筑基础。
Existing retaining wall reinforcing construction method and reinforcing structure thereof
既有挡土墙加固施工方法及其加固结构
DENG ZONGWEI (author) / FAN ZIJIAN (author) / ZHOU YANMING (author) / MO YIZHENG (author) / CHEN PEIXIA (author)
2021-06-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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