Calculation method and system for passive earth pressure of skirt reinforced foundation pit

Abstract

The invention provides a method and system for calculating passive earth pressure of a brim reinforcement foundation pit on the basis of limit equilibrium conditions in a brim reinforcement form for apassive area of the foundation pit. Parameters required for calculating the passive earth pressure of the brim reinforcement foundation pit are obtained, and different calculation formulas are adopted for calculating the passive earth pressure of the brim reinforcement foundation pit according to different situations. The method and system have the advantages that the theoretical property of obtaining the passive earth pressure of the brim reinforcement foundation pit through calculation is improved, the reliability of a result of the passive earth pressure of the brim reinforcement foundation pit is improved, reinforcement design of the passive area of the brim reinforcement foundation pit is facilitated, and the stability of the passive area of the brim reinforcement foundation pit is promoted.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a passive earth pressure calculation method and system for foundation pits reinforced with skirts. Background technique [0002] With the rapid development of the national economy, the pace of urbanization has accelerated significantly. In order to meet the needs of people's daily life, the development and utilization of underground space has become inevitable. More and more foundation pits stand in the city. Many of the foundation pits are located in deep soft soil areas, which undoubtedly brings troubles to the selection of foundation pit support structures. Often, the deeper the embedding depth of the enclosure structure, the greater the deformation. The reason is that The above situation occurs because the shear strength index of soft soil is extremely low, which cannot provide sufficient passive resistance, and the active earth pressure is much larger than other types...

AI Technical Summary

Problems solved by technology

Among them, the m value of the reinforced body is determined by the shear strength parameter c, Value calculated, obviously lacks theoretical basis, and this calculation method cannot reflect the influence of reinforcement width on m value

The current stability calculation engineering of passive area skirt reinforcement of foundation pit is highly empirical, and the control of human factors occupies a large proportion, without strong theoretical support. At the level of engineering experience accumulation

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