H型钢在软土地区深基坑支护中的应用

深基坑 基坑支护 H 型钢H type steel in soft soil deep foundation pit applicationLingJiangChina Railway Erju Co Ltd.Fuzhou BranchAbstractExisting operations deep foundation pit railway station reconstruction of soft soil area，excavation using the original design solutions for &phi 1000mm of bored piles，set up a double row of lateral mixing pile seal &phi 700mm，both sides of the pit set &phi 609 pile ring beam pipe in the borehole positioncrossbars，station transformation venue for small heavy tight characteristics the original excavation pile using optimization-based force 350 × 350 × 12× 19 mm H-beam 900 × 12mm steel plate inserted between two piles purlin at intervals of 5.0m set a cross brace cross brace using &phi 609 × 14mmsteel tube supporting the program. Optimization shorten the construction time to ensure the construction quality paper program content and theoreticalcalculation described in detail for the future construction of similar projects can play a referenc