The invention discloses a method for reinforcing water-rich
silt strata by obliquely arranging multiple rows of freezing pipes. The method comprises the following steps of 1, conducting surveying andsetting out; 2, conducting drilling with casing; 3, obliquely arranging the multiple rows of freezing pipes; and 4, reinforcing the water-rich
silt strata. According to the method, before excavation,
silt soil
layers on the two sides of a groove wall to be subjected to excavation are obliquely frozen and reinforced to form oblique reinforced
pile walls, the distance between the upper portions of the reinforced
pile walls is wide, and the distance between the lower portions of the reinforced
pile walls is narrow; the side wall of the groove wall to be subjected to excavation can be reinforced,the bottom can be effectively frozen and reinforced, so that the enough strength is achieved,
engineering accidents such as water gushing are prevented, and the groove wall collapse possibility in theexcavation process of an underground diaphragm wall can be effectively reduced; and the method is suitable for excavation of silt sand inclusion
layers and high underground water levels, it is guaranteed that follow-up excavation construction is safely, reliably and smoothly carried out, the practicability is high, and the effect of reducing
pollution can also be achieved.