Procedure for analysis and evaluation of stability of open pit slope engineering

The purpose of the analysis and evaluation of open pit slope stability is to design and form an optimal slope that makes open pit production safe and economical. The following procedures are generally followed for slope stability analysis and evaluation:

(1) Investigation, analysis and evaluation of slope engineering geological conditions, hydrological conditions and factors affecting slope stability;

(2) Testing and determining the relevant physical and mechanical parameters such as slope rock mass and structural plane, such as tensile strength, compressive strength, cohesion, internal friction angle, elastic modulus, sensitivity to water, etc.;

(3) Determining the possible failure mode of the slope according to the results of investigation and analysis of geology, and the results of simulation experiments;

(4) For different possible failure modes, choose different calculation methods for slope stability calculation and sensitivity analysis of various influencing factors;

(5) Based on the results of stability calculation and analysis, comprehensive and stable evaluation of the slope of the study area;

(6) Give engineering stability measures and reinforcement measures to the local unstable slopes, and give the slope maintenance plan;

(7) Give the best slope design and construction plan.

Slope engineering geological work procedure

(1) Regional geological background;

(2) Geological structure of the mining area;

(3) Current site slope engineering and hydrogeological conditions of open pit mines;

(4) Engineering geological and hydrogeological conditions of the final stop slope of open pit mines;

(5) Engineering geological division of open pit slope

2. Slope rock mass strength test

3. Determine the possible damage mode of the slope

4. Stability calculation of the slope

5. Reinforcement treatment programs and measures

6. Overall slope stability evaluation and optimal slope design

7. Slope stability monitoring program

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