Науковий вісник НГУ

Abutment pressure behavior in conditions of weak wall rocks

• 
• 

User Rating:  / 1

PoorBest 

Details

Category: Mining

Last Updated on 19 March 2014

Published on 26 February 2013

Hits: 5870

Authors:

Yu.M. Khalimendik, Dr. Sci. (Tech.), Professor, State Higher Educational Establishment “National Mining University”, Head of Mine Surveying Department, Dnipropetrovsk, Ukraine

Yu.A. Zabolotnaya, State Higher Educational Establishment “National Mining University”, postgraduate student of Mine Surveying Department, Dnipropetrovsk, Ukraine

Abstract:

Purpose. During the development of stratified deposits the abutment zone is characterized by the width of the bearing pressure zone, the maximum stress in it and by the location of maximum of bearing pressure in relation to the lava face or the boundary of extraction works. The values of these parameters depend on the strength of the wall rock, which requires additional studies with confirmation by means of field observations. In order to establish the actual parameters of high rock pressure zones the monitoring of the excavations has been carried out in zones of high rock pressure at the mines “Imeni Geroev Kosmosa” and “Zapadno-Donbasskaya” of Public Joint Stock Company “DTEK Pavlogradugol”.

Methodology. The monitoring of the state of workings and rock massif in the zones influenced by extraction works was carried out at the 14 sites of mine workings at the mentioned mines by means of linear measurements.

Findings. The incompliance of the boundaries of zones of high rock pressure and spread of rock pressure in the mine workings and the position of the boundaries and dimensions, calculated according to Regulations, was established as the result of the study of the mine workings state in the high rock pressure zones at the mines “Imeni Geroev Kosmosa” and “Zapadno-Donbasskaya” of Public Joint Stock Company “DTEK Pavlogradugol”.

Originality. Based on the monitoring results we can draw the conclusion that the zone of high rock pressure in weak wall rocks is characterized by the presence of two components: the zone of disintegration with collapse danger, and the zone with high rock pressure where the continuity of the rock massif remains safe.

Practical value. The separation of high rock pressure zones into the above-mentioned two components makes it possible differentiate the scheduling of mine workings fastening in areas of high rock pressure.

References:

1.   Правила безопасности в угольных и шахтах. – К.: Минтопэнерго, 2003. – 346с.

Pravila bezopasnosti v ugolnykh shakhtakh (2003), [Safety Regulations in Coal Mines], Mintopenergo, Kiev, Ukraine.

2.   Указания о порядке и контроле безопасного ведения горных работ в опасных зонах. – Л.: ВНИМИ, 1986. – 42с.

Ukazaniya o poryadke i kontrole bezopasnogo vedeniya gornykh rabot v opasnykh zonakh (1986), [Instructions on the Order and Control of Mining Operations in Hazardous Areas], VNIMI, Leningrad, Russia.

3.   Указания по управлению горным давлением в очистных забоях под (над) целиками и краевыми частями при разработке свиты угольных пластов мощностью до 3,5 м с углом падения до 35º / [С.Т. Кузнецов, Д.Г. Пекарский, В.В. Сычев и др.] – Л.: ВНИМИ, 1984. – 62с.

Kuznetsov, S.T., Pekarsky, D.G. and Sychev, V.V. (1984), Ukazaniya po upravleniyu gornym davleniyem v ochistnykh zaboyakh pod (nad) tselikami i krayevymi chastyami pri razrabotke svity ugolnykh plastov moshchnostyu do 3.5 m s uglom padeniya do 35º [Guidelines on Rock Pressure Control in Lava Below (Above) Pillars and Boundary Parts During Development of Coal Seams With Thickness Less Than 3.5 m With Inclination of 35º], VNIMI, Leningrad, Russia.

4.   Построение зон защиты и ПГД для условий больших глубин. Методика КД 12.07.301-96 / Руководящий нормативный документ. – К.: Министерство угольной промышленности Украины, 1997. – 46 с.

Postroyeniye zon zashchity IPGD dlya usloviy bolshykh glubin. Metodika 12.07.301-96(1997), [Construction of Protection Zones and Zones of High Rock Pressure in Deep Location. Methods 12.07.301-96.], Regulatory normative document, The Ministry of Coal Industry of Ukraine, Kiev, Ukraine.

5.   Управление кровлей и крепление в очистных забоях на угольных пластах с углом падения до 35º. Руководство КД 12.01.01.503-2001 / [Е.Д. Дубов, В.И. Еф-ремов, А.М. Ковтун и др.] – ДонУГИ, 2002. – 141 с.

Dubov, Ye.D., Yefremov, V.I. and Kovtun, A.M. (2002), Upravleniye krovley i krepleniye v ochistnykh zaboyakh na ugolnykh plastakh s uglom padeniya do 35º [Control of Roof and Fastening in Production Face of Coal Seams With Inclination of 35º. Manual12.01.01.503-2001], DonUGI, Donetsk, Ukraine.

6.   Расположение, охрана и поддержание горных выработок при отработке угольных пластов на шахтах / Руководящий нормативный документКД 12.01.01.201.98. – К.: Мінпаливенерго України, 1998. – 149 с.

Raspolozheniye, okhrana i podderzhaniye gornykh vyrabotok pri otrabotke ugolnykh plastov(1998), [Location, Protection and Maintenance of Mine Workings during Mining of Coal Seams in Mines. Regulatory Document 12.01.01.201.98.], Mіnpalivenergo ofUkraine, Kiev, Ukraine.

7.   Junker,M. (2006), Gebiqsbeherrschunq von Flözstrecken. Verlaq Gbuckauf GnbH, Essen, Germany.

8.   Типовые материалы для проектирования „Сопряжения очистных забоев с подготовительными выработками, закрепленных рамной, анкерной и рамно-анкерными крепями. Типовые схемы поддержания“ ТМП 10.1.00185790.002:2010. – ДонУГИ, 2010. – 89 с.

Tipovye materiay dlya proektirovaniya “ochistnykh zaboyev s podgotovitelnymi vyrabotkami, zakreplennykh ramnoy, ankernoy i ramno-ankernymi krepyami. Tipovye skhemy podderzhaniya” (2010), [Typical Materials for Design “Conjugations of Production Faces with Preparatory Workings Supported by Frame Lining, Anchor-Frame and Roof Bolting. Typical Schemes of Maintenance” TMP 10.1.00185790.002:2010], DonUGI, Donetsk, Ukraine.

9.   Усаченко Б.М. Охрана подготовительных выработок глубоких горизонтов шахт Западного Донбасса/ УсаченкоБ.М., КириченкоВ.Я., ШмигольА.В. // – М.: ЦНИЭИуголь,1992.– 168 с.

Usachenko, B.M., Kirichenko,V.Ya. and Shmigol, A.V. (1992),Okhrana podgotovitelnykh vyrabotok glubokikh gorizontov shakht Zapadnogo Donbassa [Protection of development workings of deep horizons in Western Donbass Mines], TsNIEIugol, Moscow, Russia.

10. Халимендик Ю.М. Состояние горного массива в зонах повышенного горного давления / Халимендик Ю.М., Заболотная Ю.А.// Науковий вісник НГУ. – Днепропетровск, 2011. – №3.– C. 49–53.

Khalimendik, Yu.M. and Zabolotnaya, Yu.A. (2011), “State of the rock mass in the high rock pressure zones”, Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no.3, pp. 49–53.

01_2013_khali
2014-03-19  584.37 KB  1464

• Next >