Submit an Article
Become a reviewer
Vol 152
Pages:
66-70
Download volume:

Improving the efficiency of plowing systems when developing formations with unstable gripping wall

Authors:
V. P. Zubov1
S. V. Vasilev2
D. V. Pakhomov3
About authors
  • 1 — Professor G.V. Plekhanov Saint Petersburg State Mining Institute
  • 2 — Associate Professor G.V. Plekhanov Saint Petersburg State Mining Institute
  • 3 — Postgraduate student G.V. Plekhanov Saint Petersburg State Mining Institute
Date submitted:
2001-09-26
Date accepted:
2001-10-18
Date published:
2002-04-01

Abstract

A method for controlling the rock mass condition for the working faces using jetting units under unstable roof conditions has been developed. The necessity of increasing the rate of advance of the working face and the use of backfill of the mined-out space to ensure rock stability and uniform loading of the edge part of the formation has been proved. A formula for calculating the critical value of the filling mass suppression, which takes into account the caving step of the main roof, the loosening ratio, the thickness of the immediate roof rocks and can determine the compression properties of the filling mass by modern methods, taking into account the rate of advance of the face and the size of the squeeze zone, has been proposed. The proposed methodology substantiates an increase in the rate of face advance up to 4-6 m/day and the load on the working face by 30%.

Go to volume 152

References

  1. Васильев П.В. Управление кровлей на пологих пластах / П.В.Васильев, К.И.Иванов, А.Д.Карнышев, М: Госгортехиздат, 1962.
  2. Временные технические условия на проектирование и размещение породы в шахтах для условий Донбасса / Ин-т горного дела им. А.А.Скочинского. М, 1966.
  3. Дмитриев В.А. Вопросы управления горным давлением при интенсивной разработке пологих угольных пластов Донбасса: Автореф.дис. ... канд. тех. наук / Донецкий политехнический ин-т. Донецк, 1979.
  4. Ильштейн A.M. Закономерности проявления горного давления. М: Углетехиздат, 1958.
  5. Комиссаров С.Н. Управление массивом горных пород вокруг очистных выработок. М: Недра, 1983

Similar articles

Technique for quantitative assessment of multifactorial anthropogenic impacts on freshwater ecosystems
2002 V. F. Shuiskii, D. S. Petrov
Development of methodology for appraisal of agricultural enterprise lands using the MAPINFO 60 geoinformation system
2002 A. L. Khankov
The role of the system of material incentives in increasing the efficiency of production in OAO Vorkutaugol
2002 N. Ya. Lobanov, D. A. Savinov
Production sharing agreement as a mechanism to increase investment activity in the oil and gas complex of Russia
2002 V. N. Volovich, M. A. Lazarenko
Temporal and spatial variability of Au-Sb-W mineralization in the Verkhne-Yenashinskoye Ore Cluster (Yenisei Ridge, Siberia)
2002 A. A. Savichev
Assessment of damage to the ecosystem of the Luga Bay from the construction and operation of the product reloading unit of OAO Phosphorit
2002 V. F. Shuiskii, T. A. Petrova, T. V. Maksimova