The invention discloses a composite foundation load detection method. The composite foundation load detection method includes the following steps that (a), site clearing is performed; (b), two-way
cement stirring piles are selected; (c), load detection is performed; and (d), the two-way
cement stirring piles are analyzed. According to the method, the selected two-way
cement stirring piles are subjected to number marking, repeated detection of loads of the two-way cement stirring piles is prevented, the construction period can be shortened, and cost can be reduced. According to the method, the average value of
test data corresponding to
lime powder detection points of the two-way cement stirring piles is obtained, the average load at the positions of the two-way cement stirring piles is acquired, influences caused by the fact that the load measured through a single
lime powder detection point is too high or too low are eliminated, the deviation arrange of the obtained composite foundation load and the actual load is small, the acquired
test data are high in precision, extremely high reference value is achieved, the cement stirring piles and tidal
marsh mud around the piles can form a composite foundation jointly, and therefore the
bearing capacity of the foundation is improved; and meanwhile, by means of the method, the detection stability of a detection device can be improved, and load detection is wide in application range.