Question: An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 1,970 ft. The tunnel is 14 ft wide by

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 1,970 ft. The tunnel is 14 ft wide by 11 ft high; the back arch is semi-circular.

(a) Specify a suitable steel set size (web depth, flange width, weight per foot), set spacing, and maximum blocking point spacing for these conditions.

(b) Explain how one would handle a relatively high side pressure that may develop crossing a fault zone.

Step by Step Solution

★★★★★

3.47 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Given arched tunnel wet depth1970 moderately blocky and seamy T42 text Hp 02... 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 (173).docx

120 KBs Word File

Students Have Also Explored These Related Geological Engineering Questions!

The gage pressure in a liquid at a depth of 3 m is read to be 42 kPa. Determine the gage pressure in the same liquid at a depth of 9 m.

The absolute pressure in water at a depth of 9 m is read to be 185 kPa. Determine (a) The local atmospheric pressure, and (b) The absolute pressure at a depth of 5 m in a liquid whose specific...

A submarine at a depth of 800 m sends a sonar signal and receives the reflected wave back from a similar submerged object in 15 s. Using Prob. 9.12 as a guide, estimate the distance to the other...

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 970 ft. The tunnel is 18 ft wide by 21 ft high; the back arch is semi-circular. (a) Specify a suitable steel set...

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 2,830 ft where rock properties are: Co = 14,300 psi, To = 1,430 psi, E = 4.25 (106) psi, G = 1.8 (106) psi, =...

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 297 m. The tunnel is 5.51 m wide by 61.4 m high; the back arch is semi-circular. (a) Specify a suitable steel set...

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 600 m. The tunnel is 4.3 m wide by 3.4 m high; the back arch is semi-circular. (a) Specify a suitable steel set...

An arched tunnel is driven in moderately blocky and seamy, wet ground at a depth of 863 m where rock properties are, Co = 98.6 MPa, To = 9.86 MPa, E = 29.3GPa, G = 12.4GPa, = 24.7kN/m3. The tunnel...

An arched (semi-circle) rectangular tunnel 28 ft wide and 28 ft high is driven in dry, moderately blocky, and seamy ground. (a) Select a steel rib suitable for these conditions; specify flange width,...

1. What makes Nagesh Battula entrepreneurial? Is the opportunity of eco-habitats a large enough opportunity? 2. What makes Project Damergidda different? What should be Organo's marketing strategy for...

A company is considering the factoring of its accounts receivable. The following details apply to this company: - Credit sales amounts to $5 million per annum. - Average collection period is 75 days....

The diameter of the front wheels of a tractor is 0.8m and the diameter of the back wheels is 1.1m. What is the distance covered by that tractor if the front wheels turned 69 times more than the back...

If x ^ 2 + y ^ 2 = 80 and x_{1} = 12 find the value of (x-vf.

Amy Douglas owns a business called Douglas Distributors. The following transactions took place during January of the current year. Journalize the transactions in a general journal using the periodic...

Assume that in year 1, the ending merchandise inventory is understated by $40,000. If this is the only error in years 1 and 2, indicate which items will be understated, overstated, or correctly...

Frigid Motors Inc. assembles and sells snowmobile engines. The company began operations on July 1, 2016, and operated at 100% of capacity during the first month. The following data summarize the...

Using page 3 of a general journal and the following general ledger accounts and accounts payable ledger accounts, journalize and post the following transactions: Mar. 5 Returned merchandise to Tower...

Journalize the following transactions in a general journal: Jan. 3 Purchased merchandise from Feng, $6,000. Invoice No. 416, dated January 1, terms 2/10, n/30. 12 Purchased merchandise from Miranda,...

9.102 In each situation, find the value of the t-statistic for the sample mean x and give the value of degrees of freedom (df). a. x 5 56, m 5 50, s 5 15, n 5 25. b. x 5 50, m 5 50, s 5 20, n 5 9.

A 1046 steel, water-quenched and tempered for 2 h at 1210F, has a mean tensile strength of 105 kpsi and a yield mean strength of 82 kpsi. Test data from endurance strength testing at 104-cycle life...

Find Rab in the circuit shown. 5 kQ 2 kQ 2 kQ RAB 2 kQ 2 kQ 2 kQ B O-

An ASTM grade 40 cast iron has the following result from testing for ultimate tensile strength: Sut = W [27.7, 46.2, 4.38] kpsi. Find the mean and standard deviation of Sut, and estimate the chance...

To code diagNose, I n which Volume should you start? Which volumlumen should you verify the code?

Student Name Student ID CS209 Data Structures and Algorithms-Quiz 1 /2e Friday, Feb 22, 2019 I. (25 points) Here is an array of five integers: 5,3,4,2.1 Please draw this array after EACH iteration of...

For next year, there is a 60 percent chance the economy will do well and Importers Unlimited will have a firm value of $321,000. If the economy tanks, the firm's value will decline to $241,000. The...