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A platform for research: civil engineering, architecture and urbanism
Pore-forming pouring construction method for carbonaceous shale geological foundation pile
The invention discloses a carbonaceous shale geological foundation pile pore-forming pouring construction method which comprises the following steps: punching a flood reservoir to form a first section of pore-forming and obtain a first section of pore-forming condition; forming a first wall protection layer in the first-section formed hole according to the first-section formed hole condition; in the first section of formed hole, the carbonaceous shale layer is subjected to rotary excavating along the first wall protection layer, a second section of formed hole is formed, and the second section of formed hole condition is obtained; according to the second-section hole forming condition, a second wall protection layer is formed in the second-section hole forming; and steel reinforcement cages are put into the first section of formed holes and the second section of formed holes, concrete is poured, and the carbonaceous shale geological foundation pile is formed. According to the construction method for impact hole forming of the luvial layer and rotary excavating hole forming of the carbonaceous shale layer, the percussion drill is adopted for construction of the luvial layer, rapid penetration of the luvial layer is achieved, a compact protection wall is formed, then the rotary excavating drill is adopted for construction of the carbonaceous shale layer, hole wall rock mass expansion and disintegration are reduced, and the construction efficiency is improved.
本发明公开了一种炭质页岩地质基桩成孔灌注施工方法，包括：对洪积层进行冲孔，形成第一段成孔并获得第一段成孔情况；根据所述第一段成孔情况，在所述第一段成孔形成第一护壁层；在所述第一段成孔内，沿所述第一护壁层对所述炭质页岩层进行旋挖，形成第二段成孔并获得第二段成孔情况；根据所述第二段成孔情况，在所述第二段成孔形成第二护壁层；向所述第一段成孔和所述第二段成孔中下放钢筋笼并灌注混凝土，形成所述炭质页岩地质基桩。本发明通过对洪积层冲击成孔并对炭质页岩层旋挖成孔的施工方法，先采用冲击钻对洪积层施工，快速穿透该层，并形成致密护壁，再采用旋挖钻对炭质页岩层施工，减少孔壁岩体膨胀、崩解，提高施工效率。
Pore-forming pouring construction method for carbonaceous shale geological foundation pile
The invention discloses a carbonaceous shale geological foundation pile pore-forming pouring construction method which comprises the following steps: punching a flood reservoir to form a first section of pore-forming and obtain a first section of pore-forming condition; forming a first wall protection layer in the first-section formed hole according to the first-section formed hole condition; in the first section of formed hole, the carbonaceous shale layer is subjected to rotary excavating along the first wall protection layer, a second section of formed hole is formed, and the second section of formed hole condition is obtained; according to the second-section hole forming condition, a second wall protection layer is formed in the second-section hole forming; and steel reinforcement cages are put into the first section of formed holes and the second section of formed holes, concrete is poured, and the carbonaceous shale geological foundation pile is formed. According to the construction method for impact hole forming of the luvial layer and rotary excavating hole forming of the carbonaceous shale layer, the percussion drill is adopted for construction of the luvial layer, rapid penetration of the luvial layer is achieved, a compact protection wall is formed, then the rotary excavating drill is adopted for construction of the carbonaceous shale layer, hole wall rock mass expansion and disintegration are reduced, and the construction efficiency is improved.
本发明公开了一种炭质页岩地质基桩成孔灌注施工方法，包括：对洪积层进行冲孔，形成第一段成孔并获得第一段成孔情况；根据所述第一段成孔情况，在所述第一段成孔形成第一护壁层；在所述第一段成孔内，沿所述第一护壁层对所述炭质页岩层进行旋挖，形成第二段成孔并获得第二段成孔情况；根据所述第二段成孔情况，在所述第二段成孔形成第二护壁层；向所述第一段成孔和所述第二段成孔中下放钢筋笼并灌注混凝土，形成所述炭质页岩地质基桩。本发明通过对洪积层冲击成孔并对炭质页岩层旋挖成孔的施工方法，先采用冲击钻对洪积层施工，快速穿透该层，并形成致密护壁，再采用旋挖钻对炭质页岩层施工，减少孔壁岩体膨胀、崩解，提高施工效率。
Pore-forming pouring construction method for carbonaceous shale geological foundation pile
炭质页岩地质基桩成孔灌注施工方法
ZHANG YAQIANG (author) / SUN YINHAO (author) / LI ZHANRONG (author) / LIU HENGHUI (author) / LEI BING (author) / LI LONGJI (author) / ZHANG XUBEI (author) / HAN QIANG (author) / LIU HUAWEI (author)
2023-03-07
Patent
Electronic Resource
Chinese
Method for wet-process pouring construction of dry-process pore-forming pile foundation
| European Patent Office | 2020