At present, subway stations are often built in densely populated urban centers, the space of construction sites is very limited, and the surrounding buildings, pipelines and other environmental conditions are complex....At present, subway stations are often built in densely populated urban centers, the space of construction sites is very limited, and the surrounding buildings, pipelines and other environmental conditions are complex. When the foundation pit of the main retaining structure of subway station is excavated, the supporting system of double row reinforced concrete pile is adopted, and the crown beam is connected with the top of two rows of concrete pile, which can play the whole role of supporting system. The support system does not need to set up internal support, and has better lateral stiffness, which can effectively control the deformation of foundation pit, and the support depth is deeper than that of single row pile cantilever support structure and convenient earthwork excavation, shorten the construction period, save investment. This paper mainly introduces the stress characteristics, construction process and quality control points of double row supporting piles in the main body of subway station.展开更多
After the construction of the main enclosure of subway station is completed, some concrete structures need to be removed. The traditional construction method is used to solve the problem of damage and noise pollution ...After the construction of the main enclosure of subway station is completed, some concrete structures need to be removed. The traditional construction method is used to solve the problem of damage and noise pollution caused by the finished products of the main structure easily. The construction quality of other main enclosure structures is guaranteed. The technological principle, construction process and safety quality control points of rope saw cutting construction of main retaining structure of subway station are introduced emphatically.展开更多
文摘At present, subway stations are often built in densely populated urban centers, the space of construction sites is very limited, and the surrounding buildings, pipelines and other environmental conditions are complex. When the foundation pit of the main retaining structure of subway station is excavated, the supporting system of double row reinforced concrete pile is adopted, and the crown beam is connected with the top of two rows of concrete pile, which can play the whole role of supporting system. The support system does not need to set up internal support, and has better lateral stiffness, which can effectively control the deformation of foundation pit, and the support depth is deeper than that of single row pile cantilever support structure and convenient earthwork excavation, shorten the construction period, save investment. This paper mainly introduces the stress characteristics, construction process and quality control points of double row supporting piles in the main body of subway station.
文摘After the construction of the main enclosure of subway station is completed, some concrete structures need to be removed. The traditional construction method is used to solve the problem of damage and noise pollution caused by the finished products of the main structure easily. The construction quality of other main enclosure structures is guaranteed. The technological principle, construction process and safety quality control points of rope saw cutting construction of main retaining structure of subway station are introduced emphatically.
