Roof bolt support performance, Other Engineering

Assignment Help:
A certain coal mine has weak layer comprising of 10cm, 11cm, 9cm, 12cm, 15cm , and 19cm of inter laminated shales and mudstone. Design a full column resin bolt support system if the weak layer is overlain by 70cm of sandstone.
Given:
Hole diameter=28mm, bolt diameter=20mm, bolt tensile strength=500MPa, sandstone tensile strength=6MPa, bord width=6m, resin rock interface shear resistance=2.5MPa

Also determine the reasonable cut-out distance

Related Discussions:- Roof bolt support performance

Matrices for risk analysis, Matrices for risk analysis: NFPA 551 descr...

Matrices for risk analysis: NFPA 551 describes a technique of using matrices for risk analysis.  Such matrices are quite commonly used in the UK for assessing risk but, fortun

Final project, can u give idea about project in agriculture

can u give idea about project in agriculture

Gravity, whats the gravitational force?

whats the gravitational force?

Compressor characteristics, Compressor characteristics: When a compress...

Compressor characteristics: When a compressor is designed it is essential to establish the points at which it is likely to surge. Tests are carried out to determine the relati

Capacitive transducers, Capacitive transducers Consider a capacitor con...

Capacitive transducers Consider a capacitor consisting of two parallel conducting plates with an insulator in between. Its capictance is C = ε 0 ε r  A/d where ε

Engine lubrication systems - air craft engine , Engine lubrication systems ...

Engine lubrication systems There are basically two types of lubrication system at present in use in gas turbine engines:- a) Recirculatory. In this system, oil is distribut

Specific air range & specific endurance , Specific Air Range & Specific End...

Specific Air Range & Specific Endurance  Key cruise parameters are Range (distance flown) and Endurance (time of flight). It is important to be able to relate these to the amou

Couplings in engine, Couplings: Because of the requirement to make main...

Couplings: Because of the requirement to make maintenance tasks such as engine removal/refit, gearbox removal/refit easier, it is necessary to have a means of coupling the turb

Can you help in my assignment, can you help me in my assignment in Engineer...

can you help me in my assignment in Engineering project and operation management course??

Instruction set, compare zero- one- two- and three-address machines by writ...

compare zero- one- two- and three-address machines by writing programs to compute X=(A+B*C)/(D-E*F)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd