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

Aviation legislation - certificate of design, Aviation legislation - Certif...

Aviation legislation - Certificate of Design: During the construction, the manufacturer has to provide the C.A.A. with a Certificate of Design and also a Type Record for th

Mechanical engineering, What is the specific heat of water at different pre...

What is the specific heat of water at different pressure and different temperature? Is it possible to boil the water below atmospheric pressure and use as a hot bathing water?

Evaporation, 2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and...

2-17 Given a wind speed of 5.0 m/s at 2 m above the ground and a roughness length of 0.8 cm, compute (a) the friction velocity, in centimeters per second, and (b) the wind speed, i

Types of engine, TYPES OF ENGINE: The internal combustion engines for the ...

TYPES OF ENGINE: The internal combustion engines for the automotive use may be classified according to the following considerations: Engine cycle Number of strokes F

Capital structure, how to identify the capital structure of the company?

how to identify the capital structure of the company?

Neutral points of a bar magnet , Fix a drawing paper on a drawing board wit...

Fix a drawing paper on a drawing board with help of drawing pins. Place a magnetic needle on the drawing paper to identify geographical north and south poles. Mark north, sou

Electronics, explain compensated semiconductors

explain compensated semiconductors

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