Steel pipe drainage foot locking pile and construction method

The invention provides a steel pipe drainage foot locking pile and a construction method. The steel pipe drainage foot locking pile is fixedly connected with a steel arch and characterized in that thesteel pipe drainage foot locking pile comprises a positioning block, an anchoring steel pipe, a drainage steel pipe, an injection pipe, a wiring ring, an inner plug plate, an outer seal head plate and a water collection hole, the wiring ring is positioned in the anchoring steel pipe, the anchoring steel pipe is fixed onto the steel arch through the positioning block, the drainage steel pipe and the injection pipe are embedded into the anchoring steel pipe through wiring ring, the drainage steel pipe penetrates the inner plug plate and the outer seal head plate and is fixed with the inner plugplate and the outer seal head plate, the injection pipe penetrates outside the outer seal head plate and is fixed with the outer seal head plate, the anchoring steel pipe is externally connected withthe water collection hole,