The invention discloses a construction method for
fire prevention and extinguishing and loss prevention of a
gangue dump. The construction method comprises the following steps that S1, a working face is arranged; S2, after the site condition is confirmed, the drilling position is plotted, and a grouting hole and an exhaust hole are drilled; S3,
grout is poured through pouring holes; S4, after an upper layer is solidified, an observation hole is drilled to determine the grouting depth, the grouting hole is plugged with
foam concrete, the original hole position is laterally moved by 0.5 m, drilling and grouting are conducted with the same method, and grouting of the whole
gangue dump is completed; if the structure of the original hole site is intact, the original hole site can be utilized to continue drilling and grouting, so the
whole body reaches a complete pouring state; S5, after the
whole body is solidified, holes are drilled in all directions for observation, and after it is determined that the pouring rate reaches 80% or above,
loess is filled with original drilled holes, and a drainage pipeline is formed; and S6, a
retaining wall is built on the outer side of the
gangue hill or the position prone to collapse, a surface is covered with
loess, and plants are planted on the
loess. The method is high in functionality and can be widely applied to the technical field of
waste dump treatment.