Method for constructing underground continuous wall in deep thick slightly-weathered granite

The invention discloses a method for constructing an underground continuous wall in deep thick slightly-weathered granite. The method for constructing the underground continuous wall in the deep thick slightly-weathered granite comprises the following steps that an underground continuous wall guide wall is constructed; a groove segment is determined, and the directions and positions of guide holes and pretreatment drill holes are determined; according to the pretreatment drill holes, drilling construction is conducted; according to the guide holes, drilling-in construction is conducted; groove forming construction is conducted; reinforcing steel bar anchor rods are beaten to be embedded into the rock stratum, and the reinforcing steel bar anchor rods are sleeved with steel sleeves; and steel reinforcement cage hoisting and concrete pouring construction are conducted. According to the method for constructing the underground continuous wall in the deep thick slightly-weathered granite, drilling construction is