The invention relates to a construction method of a complex inclined rock and boulder geological bored
pile. The construction method comprises the following steps of: S1, drilling first
drill holes ina foundation and boulders on the
pile side by using a
coring machine; S2, manufacturing an explosive tube; S3, burying wall protecting tubes in the first
drill holes every other first
drill hole; S4,mounting a lifting
rope at the top of a limiting rod; S5, sleeving the outer side of the limiting rod with a steel casing to the highest point of the rock surface; S6, pre-
cracking and loosening rocks by using a static crushing agent; S7, lifting the lifting
rope to recover the limiting rod and a PVC tube for secondary utilization; S8, arranging a
geotextile bag at the position, corresponding toa boulder hole, of a reinforcement cage; S9, arranging water-swellable rubber between a first iron sheet and a second iron sheet; and S10, sinking the assembled reinforcement cage to a designated position, and pouring concrete. The construction method has the advantages that the limiting rod is arranged on the inclined rock and boulders, so that the casing can be prevented from deflecting; and when a
drill bit is ejected and deflects to affect the casing, the
drill bit can be limited by the limiting rod, so that the perpendicularity of a
pile hole is improved.