The present invention relates to a PHC tube
pile-anchor combination supporting water-stopping construction method which can effectively settle the problems of no security in the downhole operation, settlement or split of building at the circumference of the building pit, and the damage to the underground conduit and pipeline of the city. The method comprises the steps of firstly preparing a PHC tube
pile static pressure supporting
pile, measuring and aligning, arranging the piling
machine to the position, checking the precast pile, hoisting the precast pile, stabilizing the pile, pressing the pile, pile feeding, then producing a deep mixing pile, clearing the barrier on the ground, positioning the deep-layer mixer, adjusting to horizontal, premixing and subsiding to the reinforcing depth, preparing the
cement slurry, spraying and mixing for lifting to the
slurry stopping surface, repeatedly mixing for subsiding to the reinforcing depth, injecting the
slurry or mixing for lifting to the slurry stopping surface; and lastly preparing soil-nail wall and maintaining the concrete surface. The invention has the advantages of strong supporting capability, broad application sphere, combining the functions of supporting, water stopping and the like, lower fabricating cost, easy and shortcut construction, being safe and reliable, and tremendous economic and social benefit.