Dam grouting numerical simulation method coupled with fine geological information and monitoring information

Abstract

The invention relates to the field of numerical simulation of dam grouting in hydraulic and hydro-power engineering, and provides a numerical simulation method of grouting, which is capable of finely simulating geological information and fracture information and is tightly combined with grouting engineering so as to precisely predict the geological information and the fracture information, and a grouting effect. The technical scheme adopted by the invention is as follows: the numerical simulation method of dam grouting capable of coupling the fine geological information and the monitoring information comprises three parts of dynamically monitoring and analyzing a grouting construction process; establishing a three-dimensional fine geologic model for predicting the geological information and the fracture information, establishing data information connection between the model and dynamic monitoring of the grouting construction process, and optimizing along with updating of the monitoring information; lastly, coupling the data information of two parts to complete simulation of the grouting value. The method is mainly applied to hydraulic and hydro-power engineering.

Description

technical field [0001] The invention relates to a dam grouting numerical simulation method coupled with three-dimensional fine geological information and grouting monitoring information in water conservancy and hydropower projects. In particular, it involves a dam foundation with complex geology, interlaced and chaotic fissures, and geological information and grouting information are constantly updated with the grouting process. It can accurately simulate the complex geology and fissure information of the dam body and combine the continuous optimization of grouting monitoring information. Dam grouting numerical simulation method. [0002] technical background [0003] The grouting technology is to make the grouted stone body and the upper rock and soil layer of the goaf become a new structure with high strength, good impermeability and high stability after grouting, so as to achieve the purpose of improving the physical and mechanical properties of the strata in the goaf area...

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Problems solved by technology

[0006] From a series of studies and applications at home and abroad, the numerical simulation of grouting is mainly aimed at a single crack or several cracks, and the theoretical models used are mostly one-dimensional, which is different from the complex interlaced cracks in the actual grouting project. Or the situation of porous grouting in a large area is quite different, and the geological and fracture models are derived through theoretical derivation. In view of the complexity and uncertainty of geological conditions and fractures, it is difficult to establish accurate geological and fracture models.

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