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A platform for research: civil engineering, architecture and urbanism
Foundation pit supporting structure adjacent to existing building and construction method thereof
The invention discloses a foundation pit supporting structure adjacent to an existing building and a construction method thereof, and belongs to the technical field of foundation pit construction, the foundation pit supporting structure adjacent to the existing building comprises cement-soil piles constructed in a limited soil body between supporting piles and the existing building in rows and a row of supporting piles arranged on the side, adjacent to a pit, of the limited soil body, and the supporting piles and the cement-soil piles are arranged in a staggered mode. A top beam is arranged between the top ends of the supporting piles, a surface layer is sprayed on the face, adjacent to a pit, of each supporting pile, and the cement-soil piles are connected in a penetrating mode through obliquely-arranged soil nails. The soil nail comprises a soil nail hole obliquely formed in a limited soil body, a soil nail rod body connected into the soil nail hole in a penetrating mode, a secondary grouting pipe inserted into the soil nail hole and slurry poured into the soil nail hole. The problems that an existing deep foundation pit supporting mode adjacent to an existing building is limited in foundation pit depth, poor in slope overall supporting effect, high in manufacturing cost and long in construction period are solved.
一种紧邻既有建筑基坑支护结构及其施工方法，属于基坑施工技术领域，包括成排施作在支护桩与既有建筑之间的有限土体中的水泥土桩，设置在有限土体临坑侧的一排支护桩，支护桩与水泥土桩交错布设，支护桩的顶端之间设置有一道冠梁，支护桩的临坑面喷射有面层，水泥土桩之间通过倾斜设置的土钉贯穿连接；土钉包括斜向开设在有限土体内的土钉孔、穿接在土钉孔内的土钉杆体、插在土钉孔内的二次注浆管及浇筑在土钉孔内的浆体。本发明解决现有紧邻既有建筑深基坑支护方式基坑深度受限，边坡整体支护效果差，造价高及工期长的问题。
Foundation pit supporting structure adjacent to existing building and construction method thereof
The invention discloses a foundation pit supporting structure adjacent to an existing building and a construction method thereof, and belongs to the technical field of foundation pit construction, the foundation pit supporting structure adjacent to the existing building comprises cement-soil piles constructed in a limited soil body between supporting piles and the existing building in rows and a row of supporting piles arranged on the side, adjacent to a pit, of the limited soil body, and the supporting piles and the cement-soil piles are arranged in a staggered mode. A top beam is arranged between the top ends of the supporting piles, a surface layer is sprayed on the face, adjacent to a pit, of each supporting pile, and the cement-soil piles are connected in a penetrating mode through obliquely-arranged soil nails. The soil nail comprises a soil nail hole obliquely formed in a limited soil body, a soil nail rod body connected into the soil nail hole in a penetrating mode, a secondary grouting pipe inserted into the soil nail hole and slurry poured into the soil nail hole. The problems that an existing deep foundation pit supporting mode adjacent to an existing building is limited in foundation pit depth, poor in slope overall supporting effect, high in manufacturing cost and long in construction period are solved.
一种紧邻既有建筑基坑支护结构及其施工方法，属于基坑施工技术领域，包括成排施作在支护桩与既有建筑之间的有限土体中的水泥土桩，设置在有限土体临坑侧的一排支护桩，支护桩与水泥土桩交错布设，支护桩的顶端之间设置有一道冠梁，支护桩的临坑面喷射有面层，水泥土桩之间通过倾斜设置的土钉贯穿连接；土钉包括斜向开设在有限土体内的土钉孔、穿接在土钉孔内的土钉杆体、插在土钉孔内的二次注浆管及浇筑在土钉孔内的浆体。本发明解决现有紧邻既有建筑深基坑支护方式基坑深度受限，边坡整体支护效果差，造价高及工期长的问题。
Foundation pit supporting structure adjacent to existing building and construction method thereof
一种紧邻既有建筑基坑支护结构及其施工方法
SONG BOK-YEON (author) / LI JINYUAN (author) / JI WENJUN (author) / SUN HUIYING (author) / SUN YUANMIN (author) / GAO XIA (author)
2022-10-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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