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Abstract

Summary

The stable state of the rock massif is defined by its fracture structure, and a possibility of blocks’ displacement.

For risks reduction of downfall formation it is necessary to estimate jointing degree of the rock massif and influence of technogenic earthquake vibrations. Assessment is based on carrying out the following types of works:

Engineering-geological mapping of the rocky massif includes documentation of cracks on express platforms. Seismic researches by measurement method of earthquake vibrations from the passing trains and blasting.

On the basis of jointing documentation it is established that the rock massif is broken into blocks of different forms. In upper sections clumpy and columnar structures are predominant, in the bottom sections - flake stones.

The columnar structure is the most dangerous one.

While processing results of crack bedding elements the three main systems of cracks are allocated.

The registered speed rates of subsoil earthquake vibrations during trains passing and carrying out of blasting are much less than admissible speed rate and also do not break stability of the rock massif of a slope.

The analysis of the performed works results allowed to divide sites on 3 danger categories: approximately safe, dangerous and very dangerous.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201800545
2018-04-23
2024-04-19

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References

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Assessment of Risk of Development of Contingency Situations on Railway Tracks
Conference Proceedings 2018, 1 (2018); https://doi.org/10.3997/2214-4609.201800545
/content/papers/10.3997/2214-4609.201800545
/content/papers/10.3997/2214-4609.201800545
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