Question: A vertical circular shaft will pass through a water-bearing stratum at a depth of 847 m where the water pressure is estimated to be 1.45

A vertical circular shaft will pass through a water-bearing stratum at a depth of 847 m where the water pressure is estimated to be 1.45 MPa. Finished shaft diameter must be 5.5 m. The pre-shaft stress state is attributable to gravity alone. Rock properties are: Co = 46.6 MPa, To = 4.66 MPa, E = 16.6GPa, ν = 0.25, γ = 24.7kN/m3. What concrete liner thickness is indicated, assuming the maximum allowable concrete liner stress is 24.14 MPa?

Step by Step Solution

★★★★★

3.30 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Given Vertical circular shaft depth847 m ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

26-E-G-R (135).docx

120 KBs Word File

Students Have Also Explored These Related Geological Engineering Questions!

A vertical circular shaft will pass through a water bearing stratum at a depth of 2,780 ft where the water pressure is estimated to be 210 psi. Finished shaft diameter must be 18 ft. The pre-shaft...

A firm holds a patent that is estimated to be worth $20 million. The patent is repeatedly challenged in the courts by a large number of (money-seeking) firms, each hoping to grab away the patent. If...

The security market line is estimated to be k = 5% 1 110.4% - 5%2b. You are considering two stocks. The beta of A is 1.4. The firm offers a dividend yield during the year of 4 percent and a growth...

A vertical circular shaft will pass through a water-bearing stratum at a depth of 2,780 ft where the water pressure is estimated to be 210 psi. Finished shaft diameter must be 18 ft. The pre-shaft...

A circular vertical shaft is planned to have a finished, inside diameter of 5.8 m in an underground hard rock mine. Rock properties are: C o = 163.5 MPa, T o = 10.21 MPa, E = 36.48GPa, = 0.27, =...

A circular vertical shaft is planned to have a finished, inside diameter of 8 m in an underground hard rock mine. Rock properties are: C o = 189.0 MPa, T o = 12.69 MPa, E = 42.69GPa, = 0.22, =...

A circular vertical shaft is planned to have a finished, inside diameter of 19 ft in an underground hard rock mine. Rock properties are: Co = 23,700 psi, To = 1,480 psi, E = 5.29(106 psi), = 0.27, ...

Starfax, Inc., manufactures a small part that is widely used in various electronic products such as home computers. Results for the first three years of operations were as follows (absorption costing...

Using the trial balance of gross balances for Fargo and the additional information given below, answer the following questions about the operations of Fargo. Put answers in box when given. Show all...

Based on the following transactions, calculate the revenues, expenses, net income that would be reported (a) On the cash basis and (b) On the accrual basis i. Purchased inventory with a cost of...

You purchase a stock for $20 and expect its price to grow annually at a rate of 8 percent. a. What price are you expecting after five years? b. If the rate of increase in the price doubled from 8...

Suppose that the consensus forecast of security analysts of NoWork Inc. is that earnings next year will be E $5.00 per share. The company tends to plow back 60% of its earnings and pay the rest as...

8.49 Mobile payments are the move toward a cashless world in which merchants need to incorporate mobile payments into their business but many nations are slower to make the mobile switch for a number...

Jones Company is preparing the annual financial statements dated December 31, 2015. Ending inventory information about the five major items stocked for regular sale follows: Required: Compute the...

A new highway has just been completed and the government must decide on speed limits. There are several possible choices. However, on advice from police who monitor traffic the objective was to...

Pevnick Inc. began operations as a detective agency on January 1, 2015. The trial balance columns of the worksheet for Pevnick Inc. at March 31 are as follows. Other data: 1. Supplies on hand total...

Hazel sustained a loss on the theft of a painting. She had paid $20,000 for the painting, but it was worth $40,000 at the time of the theft. Evaluate the tax consequences of treating the painting as...

Before deciding which of two types of stamping machines should be purchased, the plant manager of an automotive parts manufacturer wants to determine the number of units that each produces. The two...

Finance.com has an opportunity to invest in a new high-speed computer that costs $50,000. The computer will generate cash flows of $25,000 one year from now, $20,000 two years from now, and $15,000...

Problems 112 and 113 raise the question of the reliability of the bearing pair on the shaft. Since the combined reliabilities R is R1 R2 , what is the reliability of the two bearings (probability...

Combine Probs. 112 and 113 for an overall reliability of R = 0.90. Reconsider your selections, and meet this overall reliability goal.

An 02-series ball bearing is to be selected to carry a radial load of 8 kN and a thrust load of 4 kN. The desired life LD is to be 5000 h with an inner-ring rotation rate of 900 rev/min. What is the...

TP3 LO 9.3 You are considering a $100,000 investment in one of two publicly traded companies in the same industry. Review the last three annual financial statements (same fiscal year) for two...

Correct answers: 10512.71 & 11162.78 For the period from time 0 to time 2, the force of interest is defined as follows: delta_t = {.05 for 0

Use the 2016 marginal tax rates to compute the tax owed by the following couple. A married couple filing jointly with a taxable income of $371,000 and a $7000 tax credit Click the icon to view the...