Name of the epoch layer rich In coal
Carboniferous b) Eocene c) Trias d) Permian
Parameters which describe continuous ground deformation
Subsidence, inclination, curvature, horizontal displacement and deformation
Subsidence, tremors, curvature, horizontal displacement and deformation
Subsidence, inclination, funnels, horizontal displacement and deformation
Subsidence, inclination, curvature, horizontal displacement, sink holes
How many meters of the overlay should be usually placed above exploited coal appearing of continuous subsidence:
250m b) 200m c) 350m d) 50m
Maximal subsidence for subsidence basin will occur in:
Not full basin and full basin
Not full basin and over full basin
C) full basin and over full basin
Geometrical integral theories of rock mass movement was prepared by scientists:
Budzianowski-Sałustowicz b) Utwiniszyn-Smolarski; c) Sałustowic-Lessear d) Budryk-Knothe
Description of cross-section of basin edge was used function:
Trigonometrically b)parabolic c) linear d) exponential
What kind of units are used to describe of subsidence:
Degrees b) promiles c) meters d) newtons
What kind of units are used to describe of inclination
Degrees b) promiles c) meters d) newtons
Mining prevention is a set of activities aiming at:
Increasing of area deformation b) increasing of building strength c) decrasing of area deformation d) decreasing of building strength
Methods of removal of after-excavation space caused the smallest influence on … of ground:
Fall of roof b) hydraulic filling made of broken stone c) dry pneumatic filling d) hydraulic filling made of sand
Continuous mining deformation are caused by:
Shallow exploitation of coal beds
Non-continuity of the rock mass at deep exploitation
Result from relocation of soil masses to natural voids in the rock mass
Subsidence caused by exploitation of soil of …. Methods
What kind of non-continuous deformation is non surface deformation:
Landslides b) sink holes c) mechanical suffosions d) rock steps
The compact shape of the horizontal projection has:
Warehouse b) road c) residential building d) pipeline
Five parameters describe the mining subsidence. What kind of the parameters has influence on compact building:
Inclination and subsidence b) curvature and horizontal deformation c) curvature and inclination d) curvature and subsidence
:Loading caused by continuous mining subsidence according to Limit States principles should be used as:
Live loads b) dead loads c) special loads d) accidental loads
What kind of internal force is caused by the horizontal ground deformation continuous footing (the footing is parallel to ground deformation):
Shear force b) bending moment c) tension moment d) normal force
What value of normal force Z I correct if the figures to calculation are follows -ε= ….. L=10m, b=0.5m, Θ=100kPa:
Z=10kN b)Z=200kN c) Z=250kN d) Z=125kN
What the force is caused by normal stresses to continuous footing
Force caused by stresses in the base of calculated foundation
Force caused by stresses on side surface of calculated foundation
Force caused by stresses in the base of continuous footing adjusted to the calculated one
Force caused by soil pressure on side surfaces of continuous footings adjacent to calculated one
One element of the continuous footing is bended by loads J=9kN/m and H=7kN/m. length (span) of the element is L=10m. What the maximal bending moment appear in element if will use one perpendicular anchor in the middle of footing span?
M=10kNm b) M=25kNm c) M=50kNm d) M=100kNm
Calculate the expansion joint s and give answer what figure is correct for following condition: Categories of mining areas suitability for building development - III; the length of segment (before separation) l=5cm; the high of the building H=30m; rigid construction building:
s=10cm b) s=20cm c) s=30cm d) s=50cm