Construction method for removing obstacles by combining vertical pipe sinking and horizontal drilling of super-large-diameter steel sleeve

The invention relates to the technical field of building construction, in particular to a method for removing obstacles by combining vertical pipe sinking with horizontal drilling coring of a super-large-diameter steel sleeve. The method specifically comprises the following steps of field hardening, drilling and soil taking, equipment preparation, horizontal drilling operation, completion of pile (wall) hole site breaking, taking out of construction waste generated in the breaking process, upward pulling out of a steel sleeve, backfilling of cemented soil, drilling operation of a next hole site and completion of breaking of the next hole site. Building rubbish generated in the breaking process is taken out, the steps are repeated till breaking of all the hole sites is completed, all the building rubbish is taken out, and the backfill cement soil hole sites are subjected to grouting reinforcement; according to the invention, through combination of super-large-diameter steel sleeve vertical pipe sinking and hor