Questions
1. How viable is laser drilling for different rock types? Are there particular rock properties that...

1. How viable is laser drilling for different rock types? Are there particular rock properties that are more suited to laser drilling? Are there any rocks that can't be drilled using this technology?
2. How is the laser delivered/produced down hole? How is it monitored/controlled from the surface?

In: Civil Engineering

Risk registers are a common part of professional practice in construction in identifying and analysing risk....

Risk registers are a common part of professional practice in construction in identifying and analysing risk. Critically appraise the limitations of the risk register in effectively managing risks during the project delivery stage.

In: Civil Engineering

Briefly identify and discuss four ways clients (or their representatives) could try to reduce the adversarial...

Briefly identify and discuss four ways clients (or their representatives) could try to reduce the adversarial (win-lose) nature of construction contracting

In: Civil Engineering

Road engineering: Explain with diagrams, the concept of the major and minor drainage system approach.

Road engineering:

Explain with diagrams, the concept of the major and minor drainage system approach.

In: Civil Engineering

What are the methods by which the effect of punched holes can be considered in the...

What are the methods by which the effect of punched holes can be considered in
the calculation?

In: Civil Engineering

Fixed load bending moment MD = 130 kN·m, live load bending moment ML = 140 kNNm...

Fixed load bending moment MD = 130 kN·m, live load bending moment ML = 140 kNNm
Rectangular short beams with width b = 400 mm and depth h = 600 mm are designed as follows:
Determine design suitability. Assume the coating thickness is 40 mm.(f ck = 27 MPa, f y = 300 MPa , tensile reinforcement 6-D22, shear reinforcement D10)

In: Civil Engineering

Explain why an increase in water-to-cement ratio for a fixed amount of cement results in lower...

Explain why an increase in water-to-cement ratio for a fixed amount of cement results in lower concrete strength.

In: Civil Engineering

Explain the role that diffusion plays in both diffusion creep and dislocation creep; also explain how...

Explain the role that diffusion plays in both diffusion creep and dislocation creep; also explain how these types of creep can be designed against.

In: Civil Engineering

Discuss the cement hydration process and its importance in developing the strength of concrete. Explain how...

Discuss the cement hydration process and its importance in developing the strength of concrete. Explain how it works according to the stages (dormant,setting,hardening stages). Discuss the setting time, its importance in concreting, and a practical solution to delay the initial setting time. Explain how the cement fineness, water-to-cement ratio, and curing temperature can promote or hinder the hydration.

In: Civil Engineering

what is the working principle of gravity dam

what is the working principle of gravity dam

In: Civil Engineering

briefly describe the types of hydraulic structures

briefly describe the types of hydraulic structures

In: Civil Engineering

Explain the terms Hydraulic Grade Line and Total Energy Line. Compare the total energy line and...

Explain the terms Hydraulic Grade Line and Total Energy Line. Compare the total energy line and hydraulic grade lines for the pipe sections if there is sudden enlargement in the pipe section or sudden contraction in the pipe with the help of sketches.

In: Civil Engineering

Given r(t)=ti+2sintj+2costk and u(t)=1/ti+2sintj+2costk, find the following: 1. r(t) x u(t) 2. d/dt (r(t) x u(t)...

Given r(t)=ti+2sintj+2costk and u(t)=1/ti+2sintj+2costk, find the following: 1. r(t) x u(t) 2. d/dt (r(t) x u(t) 3.now use product rule for derivative of cross product of two vectors and show same result

In: Civil Engineering

Can you compare the main assumptions as differences and common sides between the elastic limit state...

Can you compare the main assumptions as differences and common sides between the elastic limit state and ultimate limit states?

In: Civil Engineering

Write paraphrase of this: Task1: Highway alignment is the center line of the highway or the...

Write paraphrase of this:

Task1:
Highway alignment is the center line of the highway or the road on the ground. The road alignment is very important because when they not prepare it carefully it will cause high building cost, high maintenance cost and also, an increase in accident. There are requirement of high alignment like safe, easy, short and economical. And there are also factors that should be considered when choosing road alignment. These factors differ and depend on the type of road and the areas through which these roads pass. In this part we will concentrate on or obligatory points which is defined the highway alignment. It is separated into two parts, negative and positve obligatory points.
positve obligatory points:
these are those points through which the alignment should pass.
Existing road: the alignment should be fixed such the newly construction road should link to the existing road.
Intermediate town: if it is possible to have a straight road between point A&B and the intermediate town located at c, then the street need to link the intermediate town reducing the change in highway alignment.

Bridge site/Existing Bridge:
This is not adivicable to cross the river in a curve position, we have to change the alignment in such a way that it crosses the river in straight line, it should locate in right angle(90o) to the river flow and not locate in curve position. There are some reasons for this, the curve position they keep changing, when you make the right angle the length of the barge it will be short. So, the cost of this construction it will be less.   

Negative obligatory points:
When I went to the site and I saw lake or water body , I have to change this aligment to avoided the lake area. From the stragth line to curve line because of the water body. So, this water body is a Negative obligatory

In: Civil Engineering