Calculation method and system of two-dimensional steady-state seepage field in foundation pit supported by suspended retaining wall

Abstract

The invention discloses a method and system for calculating a two-dimensional steady state seepage field of a foundation pit under the support of a hanging retaining wall. According to symmetry, the half-section of the foundation pit is taken for calculation and analysis. The direction of the horizontal line is the x-axis, and the seepage field around the foundation pit is divided into four regular areas, and a two-dimensional geometric model of the foundation pit in the isotropic single-layer soil layer supported by the suspended impervious retaining wall is established; it is assumed that the impervious layer is The soil quality of the upper soil layer is uniform, the soil seepage is isotropic and conforms to Darcy's law. Combined with the boundary conditions of each region of the seepage field of the foundation pit, the simplified expression of the water head in each region is obtained by the separation variable method; After solving the inhomogeneous equation system, the constant term is obtained and substituted into the simplified expression of the regional water head, thus the simplified solution of the water head inside and outside the foundation pit is obtained. The invention can more accurately calculate the water pressure borne by the retaining wall, and has significant engineering significance for ensuring the safe construction of the foundation pit.

Description

technical field [0001] The invention relates to the technical field of underground civil engineering, and particularly discloses a method and system for calculating a two-dimensional steady state seepage field of a foundation pit in an isotropic soil layer supported by a suspended impervious retaining wall. Background technique [0002] With the rapid development of my country's national economy and the ever-improving level of science and technology, urban land has become increasingly scarce, and the land on the ground is no longer enough to meet people's needs. Many high-rise and even super-high-rise buildings have been built in various places. The development and utilization of underground space has become the development trend of urban construction. The construction of large buildings such as subways, underground shopping malls, and underground garages has become the focus of construction in many cities in recent years. trend development. [0003] In the construction of hi...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and system for calculating the two-dimensional steady-state seepage field of a foundation pit under the support of a suspended retaining wall. Technical Problems of Calculation Method of Two-dimensional Steady Seepage Field of Foundation Pit after Equal Factors

Images