Long helical spraying-rotary stirring soilcement purdah pile as well as construction method thereof

The present invention provides a long helical rotary-spraying mixing cement earth curtain pile and the construction method thereof. Firstly a plurality of distant-arranged slope-protecting piles are formed with conventional method. Afterwards, the technical processes of confirming the pile position, hole guiding, rotary-spraying mixing and drilling and rotary-spraying mixing and hoisting to form the formed pile of the curtain pile are executed in sequence. The invention has the beneficial effects: the construction condition is executed with field inspection after the completing of the construction of the curtain pile and the pile forming and water stopping effect of the curtain pile is checked after digging, the pile forming condition is good and the designing requirement is obtained after checking. After field measuring, the diameter of pile can up to 900mm. The curtain pile is closely connected with the slope-protecting pile and the water stopping effect is remarkably. After the counting of the using amount