Water And Construction



Dam & HydroPower Plants

This department consists of expertise groups as civil and architecture, geotechnic, engineering geology, hydraulic & electrical and hydro mechanical equipment. Services of these groups are as follows:

    Civil and architectural

    • Design of structure and body of gravity dam, arch dam and related structures.
    • Structural design of dams hydraulic structures, such as Water diversion system (Diversion tunnel, coffer dams), water transmission system (penstocks, valves room, channels, … ), flood outlet system, bottom outlet system, pumping system, power plant and etc.
    • Structural design of tunnels in access roads, bridges, avalanche fences, snow fences and etc.
    • Structural design of steel and concrete buildings with residential (in camps) and industry application.
    • Quality studies of concrete materials, amendment and curing of concrete structures.
    • Offering of project execution procedures.
    • Top supervision on execution of current projects.
    Geotechnic

    • Analysis and design of dam body and foundation of ECE, ECR and CFR dams.
    • Analyzing and presenting of stabilization design for soil and rock slopes.
    • Design and offering of drilling and excavation methods for dam's foundation.
    • Study of borrow sources including field studies, providing of field and laboratory tests list, supervision on these processes, providing geotechnical reports and presenting design parameters.
    • Quality studies of concrete materials, amendment and curing of concrete structures.
    • Geotechnical design of tunnels, shafts and underground structures.
    • Study of geomechanics parameters of dam's foundation.
    • Seismic design of soil and rock structures.
    • Calculating bearing capacity of foundation of soil and concrete dams.
    • Design and offering of geotechnical parameters for foundation of structures
    • Offering procedures for field and laboratory studies of civil projects.
    • Design and monitoring of instrumentation for up and underground soil structures.
    • Providing technical reports and study of soil structures behavior.
    • Top supervision on executive operation of soil and rock structures.
    Geology

    • Gathering current information and basic documents of a project including air photography, geological & topographical maps, and geological reports, studying and evaluating them.
    • Field studies including:

      • Providing general geology maps of project area and engineering geology studies of potential sites.
      • Study of underground water condition, recognizing positions of springs and water table based on boreholes.

    • Tectonic: defining overall structure of site, location of project structure area, faults, dip-direction of layers, etc.
    • Supervision on underground excavation, providing charts, tables and geotechnical section of underground excavation.
    • Geomechanical study and analyzing results of geotechnical studies.
    • Providing plan of geophysics studies.
    • Supervision on geophysics operation.
    • Data Processing of field studies.
    • Tectonic studies of neotectonics
    • Study of active faults of the site.
    • Study of historical earthquakes.
    • Study of happened earthquakes.
    • Study of seismotectonic.
    • Study of seismic and seismotectonic models.
    • Identifying risk and return period of earthquakes (deterministic and probabilistic methods).
    • Providing field and laboratory plan of rock mechanic tests.
    • Supervision on field studies
    • Analyzing the results of laboratory and field tests.
    • Providing and presenting geomechanical design parameters of rocks.

    Hydraulic specialized division

    Determining overall layout and dimension of related structures to various dam kinds, considering existing results, information and reports including:

    • Design of water diversion system and selecting its type and detailed design of selected option after economic and technical comparisons.
    • Design of spillways, considering the existing information about floods, topographic and geological conditions of the site, related width and finally optimizing dam height and spillway width and choosing selected option.
    • Design of agricultural outlet, human usage and power plant based on reservoir volume, river condition, reservoir discharge, downstream required water.

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    Hydro mechanical and electrical equipment special section

    Following items are for designing mechanical and electrical equipment:

    • Gates and related equipments (such as system of lifting , dogging , sealing and etc.)
    • Valves and related equipment.
    • Associated equipment such as cranes, winches and etc.
    • Design and estimating the feeding of all AC and DC circuits associated equipment include: mechanical, hydraulic, electrical, controls, electro pumps, server motors and etc.
    • Control and instrumentation system design for all equipments of hydro mechanical and electrical dams.

    Design and supervision of electrical and hydro mechanical equipments of hydro power plants include:

    • Different types of water turbines such as Francis, pelton and etc.
    • Valves and associated equipments (such as cranes, etc.).
    • Penstocks
    • Gates and associated equipments (such as lifting systems) on inlet part of power plants.
    • Design Review for main characteristics of turbine, generator range and a discharge height of turbine, generator's output voltage, power factor and providing relevant technical specifications.
    • Arrangement of the hydro-power plant equipment.
    • Preparation of technical specifications for the main power transformer.
    • Design and determination of substation connection to power plant and also preparation of transmission line maps.
    • Design plant control & instrumentation systems and map preparation.
    • Design of communication and transmission system of power plants with local and regional dispatching.
    • Design and installation of power system's electrical equipment, such as AC and DC systems, cables, earth....
    • designing power plant's Linear schemes, electric auxiliary systems and providing related maps.