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Combined type foundation pit supporting structure based on frame piles and miniature composite piles
The invention discloses a combined type foundation pit supporting structure based on frame piles and miniature composite piles. The combined type foundation pit supporting structure is applied to a rock deep foundation pit or a soil-rock binary foundation pit covered with soil with the thickness lower than or equal to 6 m and comprises the frame piles arranged at intervals along the periphery of the inner wall of the foundation pit and the multiple miniature composite piles arranged between the adjacent frame piles at intervals, the tops of the frame piles and the tops of the miniature composite piles are connected into a whole through a top beam, and a plurality of supports are horizontally erected between the frame piles on the opposite inner walls. The combined type foundation pit supporting structure has the advantages that the stability requirements of broken line, arc and plane sliding damage and the like of rock masses in occurrence such as down-dip along structural surfaces such as a layer surface and a joint surface are met through a bidirectional integral frame structure of the foundation pit; when the miniature composite piles are constructed, a local rock sliding body and a fixed body are adhered to form a diffused composite body, so that the anti-sliding performance of a rock-soil body on a sliding surface is improved, meanwhile, the miniature composite piles and peripheral loose rock-soil jointly form a firmer anti-sliding whole, and the lateral resistance of a rock slope is improved.
本发明公开了一种基于框架桩和微型复合桩的组合式基坑支护结构,应用于岩石深基坑或不超过6m厚度覆土的土岩二元基坑,包括沿基坑内壁四周间隔布置的框架桩以及在相邻框架桩之间间隔布置的若干微型复合桩,框架桩和微型复合桩的顶部经冠梁连成整体,相对内壁上的框架桩之间水平架设有若干道支撑。本发明的优点是:通过基坑双向整体框架结构,满足顺倾等产状的岩体沿层面、节理面等结构面发生折线、圆弧及平面滑动破坏等稳定要求;微型复合桩施工时将局部岩石滑体和不动体粘聚形成一个扩散状的复合体,从而改善了滑面处岩土体的抗滑性能,同时微型复合桩与周边松动岩土共同形成一个较坚固的抗滑整体,提高岩体边坡的侧向抗力。
Combined type foundation pit supporting structure based on frame piles and miniature composite piles
The invention discloses a combined type foundation pit supporting structure based on frame piles and miniature composite piles. The combined type foundation pit supporting structure is applied to a rock deep foundation pit or a soil-rock binary foundation pit covered with soil with the thickness lower than or equal to 6 m and comprises the frame piles arranged at intervals along the periphery of the inner wall of the foundation pit and the multiple miniature composite piles arranged between the adjacent frame piles at intervals, the tops of the frame piles and the tops of the miniature composite piles are connected into a whole through a top beam, and a plurality of supports are horizontally erected between the frame piles on the opposite inner walls. The combined type foundation pit supporting structure has the advantages that the stability requirements of broken line, arc and plane sliding damage and the like of rock masses in occurrence such as down-dip along structural surfaces such as a layer surface and a joint surface are met through a bidirectional integral frame structure of the foundation pit; when the miniature composite piles are constructed, a local rock sliding body and a fixed body are adhered to form a diffused composite body, so that the anti-sliding performance of a rock-soil body on a sliding surface is improved, meanwhile, the miniature composite piles and peripheral loose rock-soil jointly form a firmer anti-sliding whole, and the lateral resistance of a rock slope is improved.
本发明公开了一种基于框架桩和微型复合桩的组合式基坑支护结构,应用于岩石深基坑或不超过6m厚度覆土的土岩二元基坑,包括沿基坑内壁四周间隔布置的框架桩以及在相邻框架桩之间间隔布置的若干微型复合桩,框架桩和微型复合桩的顶部经冠梁连成整体,相对内壁上的框架桩之间水平架设有若干道支撑。本发明的优点是:通过基坑双向整体框架结构,满足顺倾等产状的岩体沿层面、节理面等结构面发生折线、圆弧及平面滑动破坏等稳定要求;微型复合桩施工时将局部岩石滑体和不动体粘聚形成一个扩散状的复合体,从而改善了滑面处岩土体的抗滑性能,同时微型复合桩与周边松动岩土共同形成一个较坚固的抗滑整体,提高岩体边坡的侧向抗力。
Combined type foundation pit supporting structure based on frame piles and miniature composite piles
一种基于框架桩和微型复合桩的组合式基坑支护结构
SHI CHANGLI (Autor:in) / LI HU (Autor:in) / WANG DUNXIAN (Autor:in) / MA HENG (Autor:in) / LI ZHIMING (Autor:in) / SONG YANG (Autor:in) / TANG SHUMING (Autor:in) / LIU JIFAN (Autor:in) / CHEN AFENG (Autor:in) / WANG HAO (Autor:in)
22.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Combined type foundation pit supporting structure with multiple rows of piles
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