Field Monitoring And Stability Analysis For Reinforcing Rock High-Slope Of Rode Base

Execution for high-slope of rode cutting is a process which inhere mechanical equilibrium is broken and new equilibrium is reconstructed by supporting. Force field will redistribution and distortion will accrue if excavation be adopted. Some engineering measures must be adopted in order to insure slope stability. It is difficult to forecast slope distortion accurately because complexity of geology, uncertainty of affecting factor of construction work and limit of geological exploration capability. So field monitoring is very important. On one hand, some basic data can be offered which can guide design and execution. On the other hand we can kNow state of high slope and trend of distortion.The complexity of the slope makes it difficult to predict the behavior of the slope. In order to solve this problem, a method that the slop is designed assistant by information and monitor is been inducted. The excavation stability and reinforcement effects of the slope at K132 of Xichang-Panzhihua highway were systematically and profoundly studied. The main study includes four parts as below:(1) Based on the site survey, topographical condition and geologic information achieved before excavation of the rock high-slope. To analyze the failure model of plant back slope by collecting the relevant engineering and hydrologic geology condition; Continuity model of engineering rock masses is built. The schematization method of the continuity of engineering rock mass is reported. At mountain areas the natural slope failure often occur after construction of highways. Conventional tests and clay tests from a sample illustration were conducted which combine the field features of engineering rock and some experimental data in order to obtain the computation parameters for slope stability analysis. The calculation results are provided for nonlinear finite elements (FEM) for analysis of excavated slope. The results showed that it is effective and reasonable way to determine parameters of engineering rock masses.(2) In allusion to feature of construction period for K132 cataclasite slope, some discuss have made on dynamic monitoring process. It is believed that by dynamic monitoring that diversified factors be considered and more credibility information be offered. We can grasp distortion and stress of slope roundly. The result shows that the design of monitor is comprehensive and credibility.(3) Significance of field monitor on slope has been discussed. Detailed analysis on all information of monitoring have been made in order to predict the behavior of the slope and estimate the excavation stability. Undulation in displacement monitoring curve of slope both reflect abrupt changes which nature and manpower bring about and reflect influence of ambient noise. It's important to eliminating the noise of slope's displacement monitoring for improve veracity of slope stability evaluation. There are abroad applications in eliminating noise of signal. In this paper, wavelet analysis is used to study the methods for eliminating the noise of slope's displacement monitoring dates. The nonlinear wavelet threshold is used for eliminating noise of displacement monitoring dates in Xi-Pan highway K132 slope. The results show this method is effective.(4) Construct with monitoring data is a scientific method. Grading executing, grading choosing all kinds of information and grading perfect designs were adopted in supporting works. With reference to monitoring data, adjust supporting engineering measures timely. To discuss the arrangement principle of safety monitoring instruments in engineering slopes, analyze the deformation data acquired by the monitoring instruments, study the stability of slope during digging and the actual deformation characters of slope and make a contrast with the results acquired by monitoring data.