1. Estimate the length of a 600mm diameter bored pile required to support an unfactored load of 1200 kN. The pile is embedded in a cohesive soil with an average undrained shear strength of 150 kPa and bulk unit weight = 20 kN/m³. The adhesion factor, alpha, may be assumed to be 0.4. The required overall factor of safety is to be at least 3.0. (Assume the density of the pile is equal to the density of the soil).

Hint: Express the capacity of the pile in terms of the unknown length, L. Solve for L

2. For the pile in a) estimate the pile head settlement under the unfactored load. The Young’s Modulus of the soil may be assumed to be 230 times the average undrained shear strength. Take the Young’s Modulus of concrete to be 27 GPa.

3. If this pile is part of a group of 8 piles (each with a load of 1200 kN) arranged in a 3 -2 - 3 pattern, estimate the settlement of this pile group at the pile cap level.

What are the main issues of the construction industry, including its economics, statistics, technological advances and challenges?

In your opinion, how this pandemic changed the way of engineering education in universities as well as engineering career post-Covid-19 and how you as a newly-graduated engineer can still contribute to the United Nation Development Plan (UNDP) Sustainable Development Goal (SDG) 2030 despite this pandemic challenge?

USE TYPING

In retrospect to the currently challenging global economic state, recommend five (5) preemptive or anticipatory actions from the perspective of engineering economics that could be taken by engineers in ensuring their organization will continue to survive.

What are some reasons for various errors in the open channel flow experiment(fluid mechanics)?

Can explain 5 point. What engineering sustainability do for contain toxic/ harmful material with an example... Thankyou..

Where is dewatering required. Explain its types along with its context and types of dewatering?

The following information is given about a vertical curve:
Station of VPI = 150+00.00 feet
Elevation of VPI = 2500.00 feet
L = 1000.00 feet
g1 = -3.0%
g2 = 1.0%
(a) Find the stations and elevations of the BVC and EVC.

(b) Also, what is the station and elevation of the lowest point of the curve?

(c) Calculate the first and second differences on the curve elevations of the full stations

Q. No 1). Differentiate between:
Laminar flow and turbulent flow
Reynolds number and Fraud Number
FPS system of units and SI system of units.

Explain each point in detail and provide figure or sketch to explain. Each symbol should be defined clearly.

Q. No 2). State and explain Bernoulli’s equation define each term of equation clearly.

Q. No 3. The pressure drop D_p over a length L of pipe is assumed to depend on the average velocity V, the pipe’s diameter D ,the average height h of the roughness elements of the pipe wall, the fluid density ρ ,and the fluid viscosity µ .Write a relationship between the pressure drop and the other variables. Use Indicial Method (Rayleigh’s Method) only.

what's advantages and disadvantages of long span roof which is used for buildings such as factories and large public halls ...

Air Pollutant Concentrations and Factors Affecting Air Pollution Air inversions greatly affect local air quality because pollution is trapped. Assume an inversion occurs over a 75 m x 50 m surface area and there is no way for the pollutant to escape. There are 100 cars and each one produces 10.5 µg/s of carbon monoxide (CO). Part a [1 points]: What is the concentration (in ppm) after 1 hour if the inversion is at 150. m? Part b [1 points]: What is the concentration (in ppm) after 1 hour if the inversion is at 1,500. m? Part c [1 point]: Is the NAAQS exceeded in either case? The 1-hr concentration for CO should not exceed 35 ppm. Part d [3 points]: Describe three ways (natural or human-caused) that the concentration of CO would decrease.

Discuss the importance of protecting interior spaces from intrusion of air and moisture.

Items of importance in your discussion include:

• Impact to occupants
• Impact to interior building material
• Impact to exterior building material as air and moisture moves through the structure