Pipe pile guide hole construction method under boulder group geological condition

The invention relates to the technical field of pipe pile construction, in particular to a pipe pile guide hole construction method under the boulder group geological condition, and provides the following scheme for solving the problems that in the prior art, machines are prone to being damaged and holes collapse is caused by the mode that a pipe pile guide hole construction method under the boulder group geological condition is used for treating the down-the-hole hammer clamping phenomenon. The method comprises the following steps that firstly, positioning measurement is conducted on an operation site according to a pre-designed construction drawing, and then a determined piling point is marked; secondly, the down-the-hole hammer drilling machine is in place, the down-the-hole hammer drilling machine is driven to the marked construction site, and then a specially-assigned person conducts commanding. The device is reasonable in structure, the down-the-hole hammer drill bit can be linearly swung in a small range when drilling is carried out on complex terrains, then the down-the-hole hammer drill bit is lifted up and put down, and the operation is repeated for several times, so that the down-the-hole hammer drill bit can be effectively prevented from being clamped when the down-the-hole hammer drill bit encounters complex soil layers, and then delay of a construction period is avoided.