Anchor cable drilled pile structure for deep foundation pit support and support method thereof

The invention relates to an anchor cable drilled pile structure for deep foundation pit support and a support method thereof, and relates to the field of foundation pit support. In order to solve the problems of pavement sinking and water and soil loss, the anchor cable drilled pile structure comprises a soil mass, wherein a pre-excavated foundation pit is formed in the soil mass; a concrete circular groove is formed in the soil mass around the pre-excavated foundation pit; a first pipe well set and a second pipe well set are arranged at the positions, between the pre-excavated foundation pit and the concrete circular groove, of the soil mass; a concrete protection wall is arranged on the inner side wall of the pre-excavated foundation pit; an anchor cable hole is formed in the concrete protection wall; an anchor cable pull-out assembly is arranged in the anchor cable hole; a hollow pipe is inserted into the soil mass; a steel strand is arranged in the hollow pipe; steel rings are arranged at the two ends of