Application method of sparse pile foundation in water conservancy project

Abstract

The invention provides an application method of a sparse pile foundation in a water conservancy project. The application method comprises the following steps that S1, a suitable pile body diameter isselected to ensure that the bearing capacity of a single pile is controlled within a preset range; S2, the number of sparse piles is determined, the pile center distance of every two adjacent sparse piles is required to be S, and S is greater than 6d, wherein d is the pile body diameter; and S3, the sparse piles and a hydraulic foundation form the sparse pile foundation. According to the application method of the sparse pile foundation in the water conservancy project, the water conservancy project adopts the sparse pile foundation, the nature of a soft soil foundation is changed, the requirements of the bearing capacity and settlement are met, and the foundation is prevented from generating a seepage channel, so that the safety of the water conservancy project is ensured; the numberof the piles of the sparse pile foundation is only 1 / 3-1 / 2 of that of an ordinary pile foundation, the cost of the pile foundation is reduced obviously, and the benefits are obvious; and the sparse piles adopt prefabricated piles, the quality is easy to control, the investment is saved, and the construction is fast and convenient.

Description

technical field [0001] The invention relates to hydraulic foundations, in particular to an application method of sparse pile foundations in hydraulic engineering. Background technique [0002] The main problems of water conservancy projects on soft soil foundations are insufficient bearing capacity and excessive foundation deformation. Soft soil foundations generally need to be treated to meet the design requirements. In addition to bearing capacity and deformation, the foundation of water conservancy projects must also satisfy seepage stability. At present, in the soft soil areas such as the Yangtze River Delta and the Pearl River Delta, the foundations of water conservancy projects such as pumping stations and sluices are usually based on ordinary pile foundations. Due to the inconsistent settlement of the pile foundation and the soil between the piles, it is often easy to get between the bottom plate and the foundation soil. A seepage channel is formed, which poses a gre...

AI Technical Summary

Problems solved by technology

Third, considering the bearing capacity or settlement, there is no need for so many piles, and the bearing capacity of the soil between the piles is not utilized, resulting in unnecessary waste

Images