Civil Engineer Expert

The cost of homeowners insurance often depends on what it would cost to replace the house and which additional riders—additional items to be insured—are attached to the policy.

Home insurance, also commonly called hazard insurance or homeowners insurance (often abbreviated in the real estate industry as HOI), is the type of property insurance that covers private homes. It is an insurance policy that combines various personal insurance protections, which can include losses occurring to one’s home, its contents, loss of its use (additional living expenses), or loss of other personal possessions of the homeowner, as well as liability insurance for accidents that may happen at the home.

The cost of homeowners insurance often depends on what it would cost to replace the house and which additional riders—additional items to be insured—are attached to the policy. The insurance policy itself is a lengthy contract, and names what will and what will not be paid in the case of various events. Typically, claims due to earthquakes, floods, “Acts of God”, or war (whose definition typically includes a nuclear explosion from any source) are excluded. Special insurance can be purchased for these possibilities, including flood insurance and earthquake insurance. Insurance must be updated to the present and existing value at whatever inflation up or down, and an appraisal paid by the insurance company will be added on to the policy premium. Fire insurance will require a special premium charge, plus the addition of smoke detectors and on site fire suppression systems to qualify.

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Shotcrete has been widely used for tunneling works and slope protection, it is also used for architectural purposes. There are two types of shotcrete application, the wet and dry process. Shotcrete is a concrete transported by means of air under pressure with high velocity.
It is applied and compacted in the same time against a surface.

Shotcrete components

As mentioned earlier, shotcrete differ from normal concrete by the way to apply it.
Here below some points that should be observed and respected when producing shotcrete mixes.

Cement
It is obvious that the cement quality properties play a dominant role in the high early strength behaviour. The specific surface (Blaine value) should be not lower than 3500 cm2/g. Compressive strength of the cement lime should be more than 10 MPa after 2 days and more than 35 MPa after 28 days.
First stiffening of the cement lime should not be before 1,5 hours and not after 4 hours from the start of the mixing with water.
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The conventional ad-measurement contract is one in which the Employer employs Consultants to design The Works and to supervise a Contractor in the performance of the Work.

1.1 Introduction to Conventional Construction Contract

The conventional ad-measurement contract is one in which the Employer employs Consultants to design The Works and to supervise a Contractor in the performance of the Work.
The Contractor is selected on the basis of his suitability for the type of work and the competitiveness of his price relative to other Contractors. He enters into a contract with the Employer undertaking to perform the Works in accordance with the terms and conditions of the contract for an agreed price.

The Engineer, who is usually one of the Consultant’s team, acts as the Employer’s expert; as the Employer’s Manager (with delegated responsibilities); and as initial Arbiter between Employer and Contractor.

The conventional procedure goes along a path that requires development of sufficient information for Contractors to tender in competition against each other in respect to the whole scope of works that is the subject of the contract.

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AISC requires that fasteners or welds for end connections of beams, girders, and trusses be designed for the combined effect of forces resulting from moment and shear induced by the rigidity of the connection.

When flanges or moment connection plates for end connections of beams and girders are welded to the flange of an I- or H-shape column, a pair of column-web stiffeners having a combined cross-sectional area A s t not less than that calculated from the following equations must be provided whenever the calculated value of A s t is positive:

A s t = ( P b f – F y c t w c ( t b + 5k ) ) / F y s t

where

F y c = column yield stress, ksi (MPa)

F y s t = stiffener yield stress, ksi (MPa)

K = distance, in (mm), between outer face of column flange and web toe of its fillet, if column is rolled shape, or equivalent distance if column is welded shape

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 At this time of the year it is good for growers to review their records concerning soil test information for the fields on their farm.

Soil samples should be taken at least every three seasons, unless specific problems are being experienced that would indicate any difficulties associated with fertility, salinity, sodium, or drainage problems which would require more frequent and detailed soil sampling. So if soil samples are needed, and have not been taken yet, there is still time before the start of the 1999 season to get this taken care of.

When collecting soil samples, soil cores should be taken from a depth of at least 6 inches. However, due to the irrigated nature of Arizona fields, it is recommend that the top 12 inches be sampled for most cases. Since it is important to develop an assessment of the residual NO3–N (nitrate -N) concentrations in the soil which can be available to the next crop, it is even more important to sample the top 12 inches and even the top 24 inches if at all possible.

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 External forces offer rolling resistance to the motion of wheeled vehicles, such as tractors and scrapers. The engine has to supply power to overcome this resistance; the greater the resistance is, the more power needed to move a load. Rolling resistance depends on the weight on the wheels and the tire penetration into the ground:

R = Rf W + Rp PW

where
R = rolling resistance, lb (N)

Rf = rolling-resistance factor, lb/ton (N/tonne)

W = weight on wheels, ton (tonne)

Rp = tire-penetration factor, lb/ton in (N/tonne mm) penetration

p = tire penetration, in (mm)

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The total thrust from water retained behind a wall is

P = ½ g_o H²

where H = height of water above bottom of wall, ft (m); and
g_o= unit weight of water, lb/ft³ (62.4 lb/ft³ (1001g/m) for freshwater and 64 lb/ft³ (1026.7 kg/m³) for saltwater)

The thrust is applied at a point H/3 above the bottom of the wall, and the pressure distribution is triangular, with the maximum pressure of 2P / H occurring at the bottom of the wall. Regardless of the slope of the surface behind the wall, the thrust from water is always horizontal.
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