THEORETICAL PROCEDURE TO DETERMINE GROUND SURFACE SETTLEMENT TROUGH UNDER EFFECT OF HORIZONTAL AND INCLINED MINE OPENINGS BY GEOLOGICAL SURVEY DATA

Variation of natural landscape under the influence of underground voids in many instances threatens environment, human activity and even life in case of destruction of activity objects, which happens when boundaries of the object and ground surface settlement trough intersect and the object possesses deficient factor of strength to sustain additional load caused by the change in the object area of bearing on the surface. In this study, using the Coulomb–Mohr limit condition of granular medium, geometry of location of plastic shear surfaces and parallelepiped-shaped settlement trough above an underground excavation is predicted. It is assumed that side walls take no part in the settlement trough formation. Under discussion are cases of a layer having uniform mechanical properties. The procedure is extended to the situation of laminar distribution of the mechanical properties and to a stochastic combination of rocks with taking account of their concentrations by volume. The aspects of geometric construction of settlement troughs above inclined mine openings are discussed. Finally, recommendations are given on plotting complex overlapping settlement troughs caused by numerous openings driven on various horizons within a mine field. 

Keywords

Ground surface settlement trough, Mohr–Coulomb law, geomechanical calculation, rock mass stress state, mine field.

Issue number: 8
Year: 2018
ISBN:
UDK: 622.831
DOI: 10.25018/0236-1493-2018-8-0-84-92
Authors: Kravchuk A. S., Smaluk A. F., Slavashevich S. I.

About authors: Kravchuk A.S., Doctor of Physical and Mathematical Sciences, Professor, Assistant Professor, e-mail: ask_belarus@inbox.ru, Belarusian State University, 220030, Minsk, Belarus, Smaluk A.F., Candidate of Physical and Mathematical Sciences, Leading Researcher, Belarusian National Technical University, 220013, Minsk, Belarus, Slavashevich S.I., Leading Engineer, JSC «Belaruskaliy», 223710, Soligorsk, Belarus.

REFERENCES:

1. Dubrovskaya S. A., Ryakhov R. V., Petrishchev V. P. Otsenka potentsial'nogo vozdeystviya gornodobyvayushchego proizvodstva na gorodskoy landshaft na primere gayskogo mestorozhdeniya [Assessment of potential impact of mining on urban landscape in terms of the Gaiskoe deposit]. Ekologiya urbanizirovannykh territoriy. 2016, no 4, pp. 65—71.

2. Petrishchev V. P., Noreyka S. Yu. Regional'nye osobennosti formirovaniya solyano-kupol'nykh morfostruktur [Regional peculiarities of salt dome morphostructure formation]. Geomorfologiya. 2018, no 1, pp. 66—74. [In Russ].

3. Jackson Martin P. A., Hudec Michael R. Salt Tectonics: Principles and Practice. Cambridge University Press, 2017. 513 p.

4. Petrishchev V. P., Noreyka S. YU., Ukrainchenko D. A. Problemy tekhnogennoy transformatsii landshaftov Iletskogo solyanogo mestorozhdeniya [Problems of mining-induced transformation of landscape in the area of the Ilets salt deposit]. Problemy regional'noy ekologii. 2017, no 6, pp. 60—63. [In Russ].

5. Devyatkov S. Yu. K voprosu opredeleniya usloviy formirovaniya provalov na zemnoy poverkhnosti [Determination of mechanisms of sinks on ground surface]. Strategiya i protsessy osvoeniya georesursov: sbornik nauchnykh trudov, issue. 12, Perm, GI UrO RAN, 2014, pp. 96—98. [In Russ].

6. Hudec M. R., Jacson M. P. A. The Salt Mine. A digital atlas of salt techtonics. Bureau of Economic Geology and the AAPG, 2011. 305 p.

7. Bulychev N. S. Mekhanika podzemnykh sooruzheniy [Mechanics of underground structures], Moscow, Nedra, 1994, 382 p.

8. Makarov A. B. Prakticheskaya geomekhanika [Practical geomechanics], Moscow, Kazakhmys, 2005, 255 p.

9. Ukhov S. B., Semenov V. V., Znamenskiy V. V. Mekhanika gruntov, osnovaniya i fundamenty [Mechanics of soils, basements and foundations], Moscow, Vysshaya shkola, 2007, 566 p.

10. Asanov V. A. Parametricheskoe obespechenie proektirovaniya prokhodki stvolov na novykh uchastkakh VKMKS [Parametric support of shafting planning in new areas of the Upper Kama Potash Deposit]. Strategiya i protsessy osvoeniya georesursov: sbornik nauchnykh trudov, issue. 12, Perm, GI UrO RAN, 2014,

pp. 102—107. [In Russ].

11. Baryakh A. A., Asanov V. A., Pan'kov I. L. Fiziko-mekhanicheskie svoystva solyanykh porod Verkhnekamskogo kaliynogo mestorozhdeniya: uchebnoe posobie [Physical and mechanical properties of salt rocks at the Upper Kama Potash Deposit: Educational aid], Perm, Izd-vo PGTU, 2008, 199 p.

12. Proskuryakov N. M., Permyakov R. S., CHernikov A. K. Fiziko-mekhanicheskie svoystva solyanykh porod [Physical and mechanical properties of salt rocks], Leningrad, Nedra, 1973, 272 p.

13. Tsayukov A. A. Analiz effektivnosti primeneniya vysokoproizvoditel'nykh vychislitel'nykh tekhnologiy pri reshenii zadach geomekhaniki [Application efficiency of high-performance computational technologies in solution of geomechanical problems]. Strategiya i protsessy osvoeniya georesursov: sbornik nauchnykh trudov, issue. 12, Perm, GI UrO RAN, 2014, pp. 99—101. [In Russ].

14. Ukhov S. B., Semenov V. V., Znamenskiy V. V. Mekhanika gruntov, osnovaniya i fundamenty [Mechanics of soils, basements and foundations], Moscow, Vysshaya shkola, 2007, 566 p.

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