Concrete structure anti-permeability quantitative design method with consideration of load effect

Abstract

The invention relates to a concrete structure anti-permeability quantitative design method with consideration of a load effect, wherein the method includes the following steps: 1), acquiring an ultrasonic wave velocity-stress ratio relationship under a concrete load holding state; 2) acquiring an ultrasonic wave velocity-stress ratio relationship under a concrete unloading state; 3) acquiring an anti-permeability water pressure-stress ratio relationship under the concrete unloading state; 4) acquiring an anti-permeability water pressure-ultrasonic wave velocity relationship according to the ultrasonic wave velocity-stress ratio relationship and the anti-permeability water pressure-stress ratio relationship; 5) acquiring an anti-permeability water pressure-stress ratio relationship according to the ultrasonic wave velocity-stress ratio relationship and the anti-permeability water pressure-ultrasonic wave velocity relationship; 6) acquiring multiple groups of data of the anti-permeability water pressure-stress ratio relationship under the concrete load holding state, removing dimensionalization, and then fitting to obtain a concrete structure anti-permeability design calculation formula with consideration of the load action; and 7) carrying out concrete structure anti-permeability design. Compared with the prior art, the method has the advantages of comprehensive design, high practicality, quantitative design and the like.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a quantitative anti-seepage design method of concrete structures considering the load effect. Background technique [0002] At present, there are different methods for the anti-seepage design of concrete structures in my country, but none of them consider the impact of the load on the actual structure on the anti-seepage performance of concrete. Taking the "Technical Specification for Waterproofing of Underground Engineering" for construction projects as an example, the specification stipulates that The requirement of concrete anti-seepage water pressure is determined by the buried depth of the structure, and whether the anti-seepage water pressure of concrete meets the requirements is determined by the step-by-step pressurization method in a stress-free state. However, the load on the actual engineering structure will cause damage to the concrete such as microcrack propagation, w...

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Problems solved by technology

[0002] At present, there are different methods for the anti-seepage design of concrete structures in my country, but none of them consider the impact of the load on the actual structure on the anti-seepage performance of concrete. Taking the "Technical Specification for Waterproofing of Underground Engineering" for construction projects as an example, the specification stipulates that Determine the anti-seepage water pressure requirements of concrete based on the buried depth of the structure, and determine whether the anti-seepage water pressure of the concrete meets the requirements by step-by-step pressurization method in a stress-free st

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