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The knowledge of the geological and geotechnical characteristics of the subsoil is a basic step, fundamental to the development of any type of research, evaluation, study or project in the areas of Civil and Environmental Engineering. In this sense are asked, from information available on the Internet:
a) Define what come to be geophysical techniques and the relevance of such employment in identifying geological and geotechnical characteristics of a given field;
b) Present in a Table 1 is a summary of the physical concepts associated with the use of techniques based on electrical resistivity, seismic refraction and penetrating radar;
c) provide, on a Table 2, advantages and disadvantages (or limitations) of using the techniques mentioned in item (b) as regards the definition of soil profiles (including water level position - NA) and detection contamination plumes / solid waste buried.
d) Identify the sources of information presented at Work.
A 10cm long cylindrical rod of steel is elongated to become 12.1cm long by the application of a force of 10kN. 1- What is the ration of initial diameter to final diameter, assuming no net volume change
In a certain chemical plant, a closed tank contains ethyl alcohol to a depth of 50 ft. Air at a pressure of 25 psi fills the gap at the top of the tank. Determine the pressure at a closed valve attached to the tank 10 ft above its bottom.
If the ultimate BOD of the mixed river water is 30mg/L, the rate constant for BOD at 20ºC is 0.6d-1, the reaeration rate constant at 20ºC is 0.8d-1, and the removal of BOD by sedimentation can be neglected
A delivery company accepts only rectangular boxes the sum of whose length and girth (perimeter of a cross section) are equal to 108cm. Find the dimensions of an acceptable box of a largest area.
The treated wastewater has a BOD of 12 mg/L and a k of 0.0338 1/d. The Broad River has a flow rate of 0.43 m3/s and an ultimate BOD of 5.0 mg/L.
Suppose a watershed in Athens, Georgia has 25 acres pasture (CN=70) and 50 acres wooded (CN=55). Determine the excess rainfall (in inches) and runoff volume (cubic feet) assuming the design rainfall is 25-year, 24-hour.
Land is extremely valuable in this area therefore to win this job you need to consider innovative approach to reduce the waste areas
What would be the Horizontal and vertical component from this acting force see diagram
Derive an equation for the reaction force (Rx) associated with conservation of momentum in a straight length of pipe of uniform diameter. Approximate the velocity as steady and uniform at each cross-section, and the fluid as constant density.
A client has engaged your consultancy company to undertake a conversion of a warehouse to a residential dwelling in the northern city of Darwin. You are required to check the capacity of a proposed column to ensure it can support a mezzanine floor..
A steel tank hold 120 ft^3 of water at atmospheric pressure(14.7psi and 68.4 degrees f). the water is subjected to a 100 fold increase in pressure. determine the initial weight and final density of the water if the volume decreases by .545 ft ^3.
As a highway patrol officer, you are patricipating in a speed trap. A car passes your patrol car which you clock at 55 mph. One and a half minutes later, your partner in another patrol car situated two miles away from you, clocks the same car at 5..
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