Composite foundation load detection method

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of two-way cement mixing pile construction, and in particular relates to a load detection method for a composite foundation. Background technique [0002] With the vigorous development of water conservancy investment and construction in recent years, with an investment of more than 100 million yuan, it is more and more common to use cement mixing piles in the design and construction of water conservancy engineering foundations. The work efficiency of offshore deep two-way mixing piles is double that of one-way mixing piles, and the two-way cement-soil piles are denser and have higher bearing capacity than one-way cement-soil piles of the same diameter. [0003] The two-way cement mixing pile refers to using 42.5# ordinary cement as the curing agent, and through the patented two-way mixing machine, under the operating platform of the foundation gravel cushion, the sea mud and the cement curing agent are mixed...

AI Technical Summary

Problems solved by technology

However, the current composite foundation load detection work detects two-way cement mixing piles one by one. The construction period is long and the cost is high. Moreover, the data obtained by the detection method adopted has low accuracy and low reference value.

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