The invention discloses a construction method capable of causing a
pilot hole to pass through a large-area drifting sand layer through a shaft counter-drilling method. The construction method comprises the following steps of: a: making a construction preparation; b: installing a raise boring
machine; and c: carrying out
pilot hole drilling construction. In a
pilot hole drilling construction process, adopted materials are conventional, and price is low, meanwhile, additionally purchased instruments are not required, little special equipment is adopted, in addition, an integral operation methodis convenient and flexible, construction expenses and machinery equipment input are reduced,
engineering construction cost is greatly lowered, and construction safety is guaranteed while an economic benefit is good. An influence on the masses in a surrounding area is reduced through a convenient operation, and surrounding environment and underground water are protected since the adopted materialsare free from
environmental hazard substances. The technology has high work efficiency, is high in
operability, is safe and environmentally, has good quality, is easy in promotion, saves investments,increases a new option for a disposal method capable of causing the
pilot hole to pass through the drifting sand layer, prompts a development of a counter-drilling expanding excavation technology, andhas a great potential social benefit.