The impact of the low throw fault on the stability of roadways in a hard coal mine

• Autorzy: Małkowski P. , Ostrowski Ł. , Bachanek P.

Identyfikatory

DOI

10.1515/sgem-2017-0006

• Języki publikacji: EN

Abstrakty

EN

Ensuring roadways stability in hard coal mines is one of the main challenges faced by engineers. A changeable geological structure have caused the roadway’s conditions to vary, thus influencing its stability. One of the causes of those changes is the presence of a previously undiscovered fault zone (small faults crossed the roadway) within which a significant convergence or support deformation may occur. The paper presents the impact of low throw faults on the degree of convergence of roadways. Convergence is determined for two roadways in the hard coal mine. A special measuring stations have been installed in one of the roadways, and they have carried out constant measurements for 15 months. In the other roadway, the degree of convergence has been determined on the basis of an on-site verification and comparison of the measurements obtained and the initial values, based on the roadway’s records. On the basis of the obtained convergence results, the impact of a single fault and the entire fault zone on the roadway stability has been determined. The impact of a single, low throw fault results in a 30% higher vertical convergence than in the case of roadways free of geological disturbance. In the roadway section located in the fault zone, vertical convergence is 4 times higher than in the case of sections free of disturbance impact. The floor heaving constitutes ca. 90% of vertical convergence both for roadway sections situated within the faulted zones and for sections free of the influence of any additional factors.

Słowa kluczowe

EN

fault; roadway stability; roadway convergence; floor heaving

• Wydawca: De Gruyter
• Czasopismo: Studia Geotechnica et Mechanica
• Rocznik: 2017
• Tom: Vol. 39, nr 1
• Strony: 63--72
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Małkowski P.

• AGH University of Science and Technology, Faculty of Mining and Geoengineering, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Ostrowski Ł.

• AGH University of Science and Technology, Faculty of Mining and Geoengineering, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Bachanek P.

• Uran Sp. z o.o. Przedsiębiorstwo Techniczno-Wdrożeniowe, ul. Krasińskiego 29, 40-019 Katowice, Poland

Bibliografia

• [1] BUKOWSKA M., ĆMIEL S., Charakterystyka zmian właściwości skał karbońskich w strefach tektoniki nieciągłej w Górnośląskim Zagłębiu Węglowym, Górnictwo i Geoinżynieria, Zeszyt 2, 2011, 111–119, (in Polish).
• [2] GAO J., LIU H.Y., ZHANG M., AZIZ M.M.A., Failure proces and support method of roadways excavated in inclined rock mass strata, Civil Engineering and Architecture, 2014, No. 2, 304–312.
• [3] GODYŃ K., Charakterystyka węgla kamiennego występującego w strefach przyuskokowych, Przegląd Górniczy, 2013, No. 4, 45–53, (in Polish).
• [4] HONGWEI W., YAODONG J., SHENG X., LINGTAO M., ZHINAN L., DAIXIN D., DENGQIANG Z., Influence of fault slip on mininginduced pressure and optimization of roadway support design in fault-influenced zone, Journal of Rock Mechanics and Geotechnical Engineering, 2016, Vol. 8, 660–671.
• [5] KIDYBIŃSKI A., Podstawy geotechniki kopalnianej, Wydawnictwo Śląsk, Katowice 1982, (in Polish).
• [6] MAŁKOWSKI P., NIEDBALSKI Z., MAJCHERCZYK T., Investigations of hard coal mine roadways stability in stratified rock, 8th International Symposium on Ground Support in Mining and Underground Construction, 12–14.09.2016, Luleå: E. Nordlund, T.H. Jones, A. Eitzenberger (eds.), 2016, 1–13.
• [7] MAŁKOWSKI P., MAJCHERCZYK T., NIEDBALSKI Z., Multi-criterion Analysis of Factors Affecting Maintenance of Roadways, AGH Journal of Mining and Geoengineering, 2012, No. 1, 243–252.
• [8] MAŁKOWSKI P., NIEDBALSKI Z., MAJCHERCZYK T., Roadway design efficiency indices for hard coal mines, Acta Geodynamica et Geomaterialia, 2016, No. 2, 201–211. DOI: 10.13168/AGG.2016.0002.
• [9] NIEĆ M., Geologia kopalniana, Wydawnictwo Geologiczne, Warszawa 1990, (in Polish).
• [10] NIEDBALSKI Z., MAŁKOWSKI P., MAJCHERCZYK T., Monitoring of stand-and-roof-bolting support: design optimization, Acta Geodynamica et Geomaterialia, 2013, Vol. 10, No. 2, 215–226. DOI: 10.13168/AGG.2013.0022.
• [11] ONARGAN T., KUCUK K., DELIORMANLI A., SAYDAM S., KOCA M.Y., Ground control for underground Evaporite Mine in Turkey, [in:] T. Onargan (ed.), Earth and Planetary Sciences “Mining Methods”, Chapter 3, 2012, 33–46. DOI: 10.5772/39174.
• [12] OSTROWSKI Ł., MAŁKOWSKI P., Wpływ zawodnienia na wypiętrzanie skał spągowych wyrobiska korytarzowego, Przegląd Górniczy, 2016, No. 3, 28–38, (in Polish).
• [13] PRUSEK S., Changes in cross-sectional area of gateroads in longwalls with roof caving, ventilated with “U” and “Y” systems, Archives of Mining Sciences, 2015, Vol. 60, 549–564.
• [14] PRUSEK S., Empirical-statistical model of gateroads deformation, Archives of Mining Sciences, 2010, Vol. 55, 295–312.
• [15] PRUSEK S., BOCK S., Assessment of rock mass stresses and deformations around mine workings based on threedimensional numerical modeling, Archives of Mining Sciences, 2008, Vol. 53, 349–360.
• [16] SHEN H.C., CHENG Y.F., WANG J.Y., Finite element study on the effects of faults on the ground stress field, Petroleum Geology and Oilfield Development in Daqing, 2007, No. 4, 34–37.
• [17] SHENG-QI Y., MIAO C., HONG-WEN J., KUN-FU C., BO M., A case study on large deformation failure mechanism of deep soft rock roadway in Xin’An coal mine, China, Engineering Geology, Vol. 217, 89–101. Retrieved on 28 December 2016, http://www.sciencedirect.com/science/article/pii/S0013795216308614.
• [18] SHUAI Y., JIANBIAO B., WENFENG L., JIGANG C., LEI L., Deformation mechanism and stability control of roadway along a fault subjected to mining, International Journal of Mining Science and Technology, 2012, Vol. 22, 559–565.
• [19] Technical documentation of roadway D-2. „Borynia–Zofiówka–Jastrzębie” Coal mine, (unpublished).
• [20] Technical documentation of drift W level 838. „Borynia–Zofiówka–Jastrzębie” Coal mine, (unpublished).
• [21] Uproszczone zasady doboru obudowy odrzwiowej wyrobisk korytarzowych w zakładach wydobywających węgiel kamienny. (2001). Seria: Instrukcje nr 15, Katowice: Główny Instytut Górnictwa, 2001, (in Polish).
• [22] YAO Q., LI X., PAN F., WANG T., WANG G., Deformation and Failure Mechanism of Roadway Sensitive to Stress Disturbance and Its Zonal Support Technology, Shock and Vibraton, 2016, Vol. 6, 1–14, DOI: 10.1155/2016/1812768.
• [23] Zasady projektowania i doboru obudowy wyrobisk korytarzowych w zakładach wydobywających węgiel kamienny. Wydanie II – poprawione, Politechnika Śląska, Instytut Eksploatacji Złóż, Gliwice 2000, (in Polish).

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).