Coal is mined 15 ft high underground in flat strata by the long wall method at a
Question:
Coal is mined 15 ft high underground in flat strata by the long wall method at a depth of 1,500 ft. Panels are 750 ft wide and 7,500 ft long. Assume US conditions, then considering trough subsidence, estimate (in ft):
a. Maximum subsidence over a single panel (ft),
b. Critical width (ft),
c. Maximum subsidence over an area undermined by six adjacent panels (ft),
d. Maximum tensile strain over a single panel,
e. Maximum compressive strain over an area undermined by six adjacent panels.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Given Subsidence trough information depth1500 ft 750 ft face length 7500 ft panel length mining ...View the full answer
Answered By
Asim farooq
I have done MS finance and expertise in the field of Accounting, finance, cost accounting, security analysis and portfolio management and management, MS office is at my fingertips, I want my client to take advantage of my practical knowledge. I have been mentoring my client on a freelancer website from last two years, Currently I am working in Telecom company as a financial analyst and before that working as an accountant with Pepsi for one year. I also join a nonprofit organization as a finance assistant to my job duties are making payment to client after tax calculation, I have started my professional career from teaching I was teaching to a master's level student for two years in the evening.
My Expert Service
Financial accounting, Financial management, Cost accounting, Human resource management, Business communication and report writing. Financial accounting : • Journal entries • Financial statements including balance sheet, Profit & Loss account, Cash flow statement • Adjustment entries • Ratio analysis • Accounting concepts • Single entry accounting • Double entry accounting • Bills of exchange • Bank reconciliation statements Cost accounting : • Budgeting • Job order costing • Process costing • Cost of goods sold Financial management : • Capital budgeting • Net Present Value (NPV) • Internal Rate of Return (IRR) • Payback period • Discounted cash flows • Financial analysis • Capital assets pricing model • Simple interest, Compound interest & annuities
65+ Reviews
86+ Question Solved
Related Book For 
Question Posted:
