The invention relates to a moon
lunar soil shallow layer drilling and
coring method, which relates to a moon unconsolidated formation
lunar soil drilling exploration sampling method. The invention adopts a
drill head to conduct center-drilling hole aiming at the characteristics that the moon shallow layer
lunar soil is loose sand without bonding property, as the drilling deep-going of the
drill bit, drilled dry loose rock cores are led to core collect through a
coring cannula on the periphery of the
drill bit, the lower portion of a
screw thread drill bit of a drilling tool which uses the method of the invention is a
drill bit vane, an upper bearing seat and a bearing are statically connected in a matching way, a connecting sleeve and a bearing are fixedly connected, the
coring cannula is connected with screw threads of the connecting sleeve through the upper end of an outer
pipe hole, and is sleeved on the periphery of the
threaded rod drill bit, and the inner
pipe hole of the coring cannula integrates rock cores. The moon lunar soil shallow layer drilling and coring method has innovative technology and outstanding technical effect, improves the maximum coring rate of 3.07% of the traditional drilling inner-tube coring method to 95%, comprehensively solves the difficult problems of coring in loose sand grain
layers, and supplies a feasible moon lunar soil shallow layer drilling and coring method and an application drilling tool for lunar exploration geologic research.