| 摘要 |
PURPOSE: A foundation structure using micro-piles is provided to reduce the amount of used micro-pile cores by regulating the formation depth of micro-piles and inserting pressure plates of the micro-piles in an out casing to directly receive the vertical load of the structure. CONSTITUTION: In a foundation structure using micro-piles for comprising footing concrete(23) and foundation ground(24) which comprises a weak soil foundation layer(21) and a bearing foundation layer(22), a borehole(25) having a certain outer diameter is formed in the foundation ground and an out casing(26) made of a steel pipe is inserted to the weak soil foundation layer in the borehole. A micro-pile core(27) made of a steel rod is inserted from the bottom of the bearing foundation layer to a certain location of the weak soil foundation layer. A first pressure plate(28) is installed on the upper part of the out casing. Second pressure plates(29a,29b) are installed on the upper part of the micro-pile core. |
