Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Device for increasing rock-socketed depth of large-diameter cast-in-place pile
The invention belongs to the technical field of geotechnical engineering foundation pit supporting and construction, and relates to a device for increasing the rock-socketed depth of a large-diameter cast-in-place pile. A positioning sleeve is bound and fixed to the inner side wall of a reinforcement cage through fixing steel bars, a miniature steel pipe pile is in lap joint in the positioning sleeve, and the end face of one side flange of ballasting I-shaped steel makes contact with the top of the reinforcement cage; the anchoring angle steel, the connecting rings, the steel wire ropes and the connecting plates form ground anchoring components, the ground anchoring components are arranged at the two ends of the ballasting I-shaped steel, cement mortar is injected into a pile body of the miniature steel pipe pile, and the rock-socketed part of the miniature steel pipe pile is tightly bonded with pore-forming rock through the cement mortar. The inner wall part of the lap joint positioning sleeve of the miniature steel pipe pile is bonded through cement mortar; the outer wall of the positioning sleeve and the large-diameter cast-in-place pile are cast into a whole; the device is simple in structure and convenient and safe to operate, accurate drilling and pile sinking of a rock stratum can be achieved, the embedding depth is guaranteed, the reinforcement cage is prevented from floating upwards in the pressure grouting process, construction is convenient and fast, and cost is saved.
本发明属于岩土工程基坑支护与施工技术领域，涉及一种提高大直径灌注桩嵌岩深度的装置，定位套管通过固定钢筋绑扎固定在钢筋笼内侧壁上，定位套管内搭接微型钢管桩，压重工字钢的一侧翼缘端面与钢筋笼顶部接触，锚固角钢、连接环、钢丝绳和连接板组成地面锚定构件，压重工字钢的两端均设有地面锚定构件，微型钢管桩桩身内部注有水泥砂浆，微型钢管桩嵌岩部分通过水泥砂浆与成孔岩石紧密粘结，微型钢管桩搭接定位套管内壁部分通过水泥砂浆粘结；定位套管外壁与大直径灌注桩浇筑为一体；其结构简单，操作方便安全，能实现对岩石地层的精准钻孔和沉桩，保证嵌入深度，并在压力注浆过程防止钢筋笼上浮，施工便捷，节约成本。
Device for increasing rock-socketed depth of large-diameter cast-in-place pile
The invention belongs to the technical field of geotechnical engineering foundation pit supporting and construction, and relates to a device for increasing the rock-socketed depth of a large-diameter cast-in-place pile. A positioning sleeve is bound and fixed to the inner side wall of a reinforcement cage through fixing steel bars, a miniature steel pipe pile is in lap joint in the positioning sleeve, and the end face of one side flange of ballasting I-shaped steel makes contact with the top of the reinforcement cage; the anchoring angle steel, the connecting rings, the steel wire ropes and the connecting plates form ground anchoring components, the ground anchoring components are arranged at the two ends of the ballasting I-shaped steel, cement mortar is injected into a pile body of the miniature steel pipe pile, and the rock-socketed part of the miniature steel pipe pile is tightly bonded with pore-forming rock through the cement mortar. The inner wall part of the lap joint positioning sleeve of the miniature steel pipe pile is bonded through cement mortar; the outer wall of the positioning sleeve and the large-diameter cast-in-place pile are cast into a whole; the device is simple in structure and convenient and safe to operate, accurate drilling and pile sinking of a rock stratum can be achieved, the embedding depth is guaranteed, the reinforcement cage is prevented from floating upwards in the pressure grouting process, construction is convenient and fast, and cost is saved.
本发明属于岩土工程基坑支护与施工技术领域，涉及一种提高大直径灌注桩嵌岩深度的装置，定位套管通过固定钢筋绑扎固定在钢筋笼内侧壁上，定位套管内搭接微型钢管桩，压重工字钢的一侧翼缘端面与钢筋笼顶部接触，锚固角钢、连接环、钢丝绳和连接板组成地面锚定构件，压重工字钢的两端均设有地面锚定构件，微型钢管桩桩身内部注有水泥砂浆，微型钢管桩嵌岩部分通过水泥砂浆与成孔岩石紧密粘结，微型钢管桩搭接定位套管内壁部分通过水泥砂浆粘结；定位套管外壁与大直径灌注桩浇筑为一体；其结构简单，操作方便安全，能实现对岩石地层的精准钻孔和沉桩，保证嵌入深度，并在压力注浆过程防止钢筋笼上浮，施工便捷，节约成本。
Device for increasing rock-socketed depth of large-diameter cast-in-place pile
一种提高大直径灌注桩嵌岩深度的装置
HE LAISHENG (Autor:in) / BAI XIAOYU (Autor:in) / YU LONGTAO (Autor:in) / ZHANG LI (Autor:in) / ZHANG MINGYI (Autor:in) / WANG XIRUI (Autor:in) / YAN NAN (Autor:in) / KANG HAIBO (Autor:in) / ZHANG CHANGTAI (Autor:in) / ZHANG KUN (Autor:in)
13.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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