Skip to main content
Feb 26, 2016 / Haseeb Jamal -

5 Travel Myths You Need to Stop Believing Right Now

Feb 26, 2016 / Haseeb Jamal -

Canal Comes Alive with Lighted Boat Parade.

Techniques for Sewer Condition Assessment

Zoom cameras Closed-circuit television Digital scanners Laser profilers Remote sensing diagnostic techniques Zoom cameras Cost and time saving preliminary inspections 
 Main premise is that most of sewer problems occur at or near maintenance holes 
 Provide good quality imagery up to 20-75 m pipe length Able to survey 150 to 1525 mm diameter sewers 
 Colour videos and digital images saved on optical storage devices

Factors Affecting Selection of UUL Technologies

Every underground utility locating technology has its own limitations. 
There is no single technology that can be used for every type of utility, soil type, and site. Many factors, including characteristics of expected underground utilities, geological conditions at the site, environmental and social factors, and experience of the operators should be considered as criteria for the appropriate selection of technologies.

Underground Utility Locating Technologies

The most widely used approach for wastewater pipelines condition assessment is to define condition states based on a set of variables collected by visual inspections. A state is defined as “a combination of specific level of variables that provides a complete description of the dynamic behavior of the system”. The current condition of an asset and its likely rate of

Chemical Characteristics of Sewage - BOD, COD, Nutrients, DO

In sanitary sewage about 75 % of suspended solids and 40% of filterable solids are organic. These solids are derived from both animals, plant and humans. Organic compounds usually consist of C; H; O; N along with S; P and Iron. The organic substances found in sewage are Protein (40-60%); Carbohydrates (25-50%), fats and oils (10%). Along with these organic

Physical Characteristics of Sewage

Following are the detailed physical characteristics of Sewage: Temperature, Color, Odor, Solids, Total Solids, Total suspended Solids, Fixed and Volatile Solids. Oxygen is less soluble in warm water, while some species of aquatic life population increases with temperature causing more demand of oxygen and result in depletion of dissolved oxygen in summer.

Purpose and Objectives of Urban Drainage System

Additionally, the impact of drain and sewer systems on the receiving waters shall meet the requirements of national regulations (NEQS) or the relevant authority. The purpose of Urban drainage is: It is the control of environmental pollution, improve environmental quality to enable healthy ecosystem and comfortable habitation to human. To maintain such

Design of Precast Parabolic Channels in Peshawar

Discrepancy feature is the conveyance losses (35 to 50%). Irrigation system of KPK (Province of Pakistan) is facing severe Operational problems including water scarcity, water logging, and salinity. Reason was due to the traditional brick lining. The following steps are involved

Approximate Analysis of Indeterminate Structures

Conventional design process is normally based on the ‘local’ structural elements (column, beam, floor slabs, wall, etc.) But theoretical and experimental studies have shown that structural systems cannot be considered to be a simple collection of individual elements. The responses of the structure is often more than the ‘sum’ of the responses of individual elements since

Chemical Seasoning and Preservatives of Wood

There are 3 main classes of preservatives Oily substances insoluble in water Water-soluble salts Salts carried in volatile solvent other than water. A) Oily Preservatives Coal-tar is the best known ►most widely used preservative Obtained from bituminous coal Available in many grades ► gives satisfactory results

Analysis of Multi-Storey Structures in SAP2000

Analysis of 3D Frame (Multi-Storey) using SAP2000

ACI Building Code Requirements and Safety Provisions

Structural members must always be proportioned to resist loads greater than service or actual loads, in order to provide proper safety against failure. In the strength design method, the member is designed to resist the factored loads which are obtained by multiplying the factored loads with live loads. Different factors are used for different loadings. As dead loads can be estimated

Concrete Accelerators - Definition, Examples and Effects

Accelerating Admixture - an admixture that causes an increase in the rate of hydration of the hydraulic cement and thus shortens the time of setting, increases the rate of strength development, or both. Accelerating admixtures are added to concrete either to increase the rate of early strength development or to shorten the time of setting, or both. Chemical

Frame Design and Analysis using SAP2000

3D Frame Analysis using SAP2000 Watch Videos on How to design a 3D Frame - Part 1 | Part 2 in SAP2000

Traffic Load - Definition and Analysis

This is the role of the Pavement Engineer and involves determining the loading on the road to be carried forward to the Pavement Design. The role of the pavement engineer is to provide an adequate thickness of pavement to carry the expected loads without deterioration of the network during the design life. The estimated or projected magnitude and occurrence of

Highway Drainage Design, Structures and Guidelines

Includes collecting, transporting, and disposing of surface/subsurface water originating on or near the highway right of way or flowing in streams crossing bordering that right of way. Drainage of highway is important because water damage highway structure in many ways. The water which are dangerous for highways are: Rainwater: Cause erosion on surface or may

Search AboutCivil