Back Analysis On Mechanical Parameters Of Geotechnical Engineering Based On Slope Anchor Load Monitoring Data

Slope stability problem in geotechnical engineering has been to occupy an important position, to guarantee the security of the implementation of projects of great significance. In the process of slope stability analysis, the mechanical parameters of rock and soil are important for solving the data. Sampling from the traditional laboratory test and field rock mechanics test method to determine the geotechnical parameters of physical study of the shortcomings, and therefore through measured various types of information to determine the parameters and models of the back analysis method has been since the introduction of rapid development, now become a problem to solve complex geotechnical mechanics an important method. However, at this stage the back analysis of geotechnical engineering methods used for measuring displacement for back analysis is much more, and the theory is more sophisticated. This article carry out based on slope anchor load monitoring for data information to research the back analysis method, that is a useful complement to displacement back analysis and enrich the theory of the back analysis. Specifically, the main job of this article content as follows:(1) Based on the conclusion of the theory of the back analysis to conduct in-depth understanding and discussed displacement back analysis method at this stage, and expound the principles of finite element back analysis. Looking for the way and means suitable for anchorage load back analysis of this subject.(2) Analysis of the role of slope reinforcement bolt mechanism, and summed up the bolt stress distribution of the theoretical and experimental research. At the same time, the use of numerical simulation method verify the bolt stress distribution of the theoretical solution is reasonable.(3) By analysing the mechanism of prestressed anchor bolt paragraph analysis of the forces, set up the route for the monitoring data of anchorage load to invert mechanical parameters of the slope. the monitoring data of anchorage load→anchoring force paragraph→|(invert) the parameters of the slope(4) Based on the Ansys Parametric Design Language, use the forward optimize ways to research the anchor load inversion slope geotechnical parameters, and verify the anchor load back analysis of the feasibility of ways. The anchor load finite element optimization back analysis method is applied to the engineering practice, with monitoring of the anchor load to invert the target parameter. Parameters are used to being analyzed by the slope after got the results of the back analysis, evaluation of the dynamic stability of the slope.