Pipe jacking construction method for external girdling jacking

According to the pipe jacking construction method, a socket pipe and a steel blade foot assembly fixed to the end, penetrating into the stratum, of the socket pipe are included, a working pit for containing the socket pipe is formed in the stratum, and a cast-in-place reaction wall is arranged on the side, away from the steel blade foot assembly, of the interior of the working pit; and a driving assembly for pushing the socket pipe into the stratum is fixed on the cast-in-place reaction wall. The jacking mechanism has the beneficial effects that the containing frame for containing the multiple sets of jacking iron plates is arranged above the oil cylinder serving as the jacking mechanism, the jacking iron plates stacked in the containing frame automatically fall down when the oil cylinder returns oil and shrinks, the jacking iron does not need to be manually carried and added, the operation complexity that an existing jacking iron needs to be fixed to avoid disintegration of the jacking iron is improved, and