Construction
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Local and international occupational health and safety requirements are meticulously enforced in every phase of construction work. Compliance with project-specific and general environmental and labor safety requirements of each project is key to the high service quality offered by Doğuş Construction to its clients. Accordingly, employees are continuously provided training courses to keep up with the changing requirements in the areas of Quality, the Environment, Occupational Health and Safety Management Systems.
Doğuş Construction is certified by Lloyd's Register (LRQA) with ISO 9001:2008 Quality Management, OHSAS 18001:2007 Occupational Health & Safety Management, and ISO 14001:2004 Environmental Management systems.
The preservation of the environment is of great importance in the projects executed by Doğuş Construction. Particular care is taken to protect natural resources, to minimize negative environmental impacts and to adopt necessary mitigation measures. To this end, Doğuş Construction is in full compliance with the applicable environmental laws and regulations.
Morocco, Argana – Amskroud Motorway Project
The Argan tree is an endemic species, unique to Southern Morocco, and the fruits resemble olives. The oil from the Argan fruit is one of the most valuable plant oils in the world, containing an abundant amount of Vitamin E. The absorption rate of the oil is very high and it is used as a cream to nourish the skin and to delay the aging process.
The Argan tree exists only in the south-western area of the Moroccan State. This tree is an endangered species and under protection. Accordingly, in collaboration with the Moroccan Forest Administration, the Morocco, Argana - Amskroud Project team chose to build the required depots only where there were the minimum number of trees.
The project team compensated for any potential damage to wildlife by using the depot areas to grow Argan trees in an area of 75 hectares, as identified by the Moroccan Ministry of Forestry. In this way, the project team aims to protect the wildlife and the natural resources which represent a valuable forest to the country.
Sinop – Boyabat (Via Tunnel) Motorway Project
Along the projected route, there are 5 different areas (total length of 8.8 km) where terrain observations and drillings were accomplished. To reduce damage to forests, steep-sloped high cutting excavations were eliminated. Further, in geologically stratified flysch beds, "heel fillings" were built to form the motorway platform and to reduce the potential risk of landslip from hydraulic underground movements. Finally, where the motorway route is constructed near villages and neighbourhoods, high cuttings were reduced in order to conserve the forest and to prevent landslip risk in settlements.
In the context of the project, excavations were completed in the Gökırmak Stream borrow pit and stream material was gathered to be used in the motorway fillings. Further to a correspondence between the project administration and the Turkish Republican Motorways, the borrow pit excavations were backfilled with the top layer of soil (i.e., organic layer) which was removed from the motorway route. With this method, the Stream's flora was replenished.
Where the motorway runs parallel to the Stream in the project, the Stream bed was modified to prevent soil erosion.
Boyabat Dam and HEPP Construction Project
The Natural Wastewater Treatment Plant that Doğuş implemented under the title of Boyabat Dam and HEPP Project was performed adopting the principles of protecting natural resources, minimizing negative environmental impacts and placing emphasis particularly on taking measures that are in the direction of decreasing existing negative impacts. The construction of this natural treatment system, where natural flora is used, is quite simple and economical. These systems are based on the principle of filtering wastewater in basins using natural materials available in the environment, and the treatment of water with wetland plants that are grown are small imitations of the natural structure. Wetlands are capable of using solar energy in the environment and renewing themselves. They form a wild life habitat, providing living space for several species, and ensure that the natural balance of the atmosphere is protected by consuming carbon dioxide and generating oxygen. They have high capacity of treatment since they can eliminate organic materials, suspended solids, nutrients, toxic materials, heavy metals and biological components. In consideration of the fact that the treatment system, with no commissioning cost, is very inexpensive in terms of investment and is an environment and human friendly investment. It aims to increase the environmental awareness of the local community with this type of environmentally friendly projects.Indeed, it may be appropriate to refer to this technology as "Living Machine" since the treatment procedure is performed by several aquatic living beings.