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Mining a coal seam with caving in a protective pillar of a mine shaft. [Poland]

Journal Article:

Abstract

Mining the 620 seam is evaluated (from 1.5 to 1.7 m thick at a depth of 468 m in the protective pillar of the upcast mine shaft used for ventilation, manriding and transport of materials in the Pstrowski mine in Upper Silesia). The shaft is 496 m deep, has a diameter of 3.5 m and its liners are made of bricks. Ground subsidence caused by underground mining influenced: the head frame above the shaft, residential buildings, a church, railway tracks and a river bed. A system of shortwall mining with caving was used. Deformation of shaft liners was reduced by advanced cutting of a coal block 30x30 m around the shaft. A system of timber cribbings and yielding elements was used. Design of support systems used around the shaft is shown in 3 schemes. Shaft deformation was within permissible limits. The maximum ground subsidence (0.95 m) occurred in the river area. Ground subsidence in the area of the church ranged from 0.75 to 0.81 m and in the head frame area 0.84 m. Accuracy of ground subsidence and shaft deformation forecasting was high. 4 references.
Publication Date:
Jan 01, 1984
Product Type:
Journal Article
Reference Number:
EDB-85-019161
Resource Relation:
Journal Name: Ochr. Terenow Gorn.; (Poland); Journal Volume: 18:67
Subject:
01 COAL, LIGNITE, AND PEAT; POLAND; UNDERGROUND MINING; SUPPORT PILLARS; REMOVAL; GROUND SUBSIDENCE; BUILDINGS; CAVING; COAL MINES; COMPARATIVE EVALUATIONS; DEFORMATION; FORECASTING; MECHANICAL STRUCTURES; MINE SHAFTS; RAILWAYS; RIVERS; SHORTWALL MINING; STRATA CONTROL; DEVELOPING COUNTRIES; EASTERN EUROPE; EUROPE; MINES; MINING; SHAFT EXCAVATIONS; STREAMS; SURFACE WATERS; UNDERGROUND FACILITIES; 012000* - Coal, Lignite, & Peat- Mining; 010900 - Coal, Lignite, & Peat- Environmental Aspects
OSTI ID:
6080799
Country of Origin:
Poland
Language:
Polish
Submitting Site:
HEDB
Size:
Pages: 18-26
Announcement Date:

Journal Article:

Citation Formats

Szymura, G, Dilling, R, and Kowalski, A. Mining a coal seam with caving in a protective pillar of a mine shaft. [Poland]. Poland: N. p., 1984. Web.
Szymura, G, Dilling, R, & Kowalski, A. Mining a coal seam with caving in a protective pillar of a mine shaft. [Poland]. Poland.
Szymura, G, Dilling, R, and Kowalski, A. 1984. "Mining a coal seam with caving in a protective pillar of a mine shaft. [Poland]." Poland.
@misc{etde_6080799,
title = {Mining a coal seam with caving in a protective pillar of a mine shaft. [Poland]}
author = {Szymura, G, Dilling, R, and Kowalski, A}
abstractNote = {Mining the 620 seam is evaluated (from 1.5 to 1.7 m thick at a depth of 468 m in the protective pillar of the upcast mine shaft used for ventilation, manriding and transport of materials in the Pstrowski mine in Upper Silesia). The shaft is 496 m deep, has a diameter of 3.5 m and its liners are made of bricks. Ground subsidence caused by underground mining influenced: the head frame above the shaft, residential buildings, a church, railway tracks and a river bed. A system of shortwall mining with caving was used. Deformation of shaft liners was reduced by advanced cutting of a coal block 30x30 m around the shaft. A system of timber cribbings and yielding elements was used. Design of support systems used around the shaft is shown in 3 schemes. Shaft deformation was within permissible limits. The maximum ground subsidence (0.95 m) occurred in the river area. Ground subsidence in the area of the church ranged from 0.75 to 0.81 m and in the head frame area 0.84 m. Accuracy of ground subsidence and shaft deformation forecasting was high. 4 references.}
journal = {Ochr. Terenow Gorn.; (Poland)}
volume = {18:67}
journal type = {AC}
place = {Poland}
year = {1984}
month = {Jan}
}