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Engineering survey

Engineering survey for construction is the works fulfilled for the comprehensive integrated study of the environmental conditions of a district, an area, a plot or a route of contemplated construction, local construction materials and water-supply sources, as well as for obtainment of necessary and sufficient materials for elaboration of economically and technically feasible solutions during design and construction of projects, taking into consideration the environmental management and acquisition of data for forecasting of environmental changes under the influence of construction and use of buildings and structures.

Engineering survey is one of the most important aspects of construction activity. Any process of construction and use of a project begins with engineering survey. The comprehensive approach combining the different types of engineering survey works allows to inspect timely and diversely the site areas, buildings and structures.

Types of surveys executed

  • Engineering-geodetic surveys
  • Engineering-geological surveys
  • Engineering-ecological surveys

Engineering-geodetic surveys

Engineering-geodetic surveys are the works executed for procurement of topographic and geodetic materials and data on situation and landscape (including bottoms of watercourses, water bodies and water areas), existing buildings and structures (surface facilities, substructures and superstructures) and other planning elements (in digital, graphical, photographical and other forms) necessary for integrated assessment of natural and man-triggered conditions of the construction area (water area) and substantiation of design, construction, service and dismantling of projects, as well as execution and keeping of state cadastres, territory management, real estate transactions.

Engineering-geodetic surveys allow receiving the information about the terrain and the relief. They serve as a basis not only for design but also for execution of others types of surveys and investigations. In the course of surveys we establish control networks and execute surveys at different scales on a construction site, siting of linear structures, geodetic connection of geological workings, hydrologic sections, geophysical surveying and other types of works.

Package of engineering-geodetic surveys includes:

  • collecting and processing of existing topographic materials;
  • reconnaissance of the ground;
  • compilation survey;
  • ordinance survey (as a rule – at 1:500 scale);
  • search of underground services;
  • determination of owners of utility lines and getting approvals from them;
  • office studies of obtained data;
  • digital terrain model;
  • compilation of surveying plane table.

The results of these surveys are:

  • topographic plans (plane tables) in hard copy;
  • digital terrain model;
  • technical report on surveying.

Engineering-geological surveys

Engineering-geological surveys are intended, first of all, for examination of geological conditions of future construction site (soil composition and properties, relief, geological processes, hydrogeologic and geomorphologic conditions, etc.) as well as for obtainment of necessary information for design and service of projects.

Engineering-geological surveys for construction shall be executed on the basis of technical specification of the client which shall clearly define project properties (number of stories and area of a building, project responsibility level, type of a foundation and its approximate depth), design stage, difficulty category of survey works.

Then, on the basis of the technical requirements, our experts draw up a program of engineering-geological survey, which shall obligatorily be approved by local architecture and town planning bodies.

All geological works are executed in strict compliance with regulative base and with the help of the up-to-date equipment. We have at our disposal not only modern drilling devices, but also high precision instruments, allowing us to carry out joint surveys as on site as in the laboratory.

The cost of survey works depends on a specific task and is defined according to the special price reference guide adjusted for inflation. The client receives the estimate where the cost of works is justified.

Engineering-geological surveys include:

  • collection and analysis of previous geological survey reports ;
  • reconnaissance survey;
  • bore well survey;
  • field soil investigation (static and dynamic penetration tests, plate tests);
  • laboratory investigation of soil and groundwater;
  • geophysical investigation;
  • hydrogeological investigation;
  • examination of foundation soils of existing buildings;
  • office studies of obtained data;
  • forecasting of possible changes of engineering-geological conditions;
  • technical report.

Engineering-ecological survey

Engineering-ecological survey for construction of buildings and structures is executed for evaluation of current state and forecasting of possible environmental changes under the influence of man-induced impact, for the purpose of prevention, minimization or liquidation of harmful and undesirable ecological and associated social, economical and other consequences, and preservation of optimal living conditions of population.

The scope of engineering-ecological survey includes:

  • collection, processing and analysis of the published and library materials and data on environmental status, search of analogous projects operating in similar environmental conditions;
  • ecological decoding of aerospace materials with use of different types of survey (black-and-white, multizonal, radar, thermal, etc.);
  • reconnaissance survey including componentwise description of the environment and landscape in general, the state of terrestrial and aquatic ecosystems, sources and indications of pollution;
  • excavations for obtaining of the ecological information;
  • ecological-hydrogeological survey;
  • soil survey;
  • geoecological sampling and evaluation of pollution of air, soil, surface and ground waters;
  • laboratorial chemical analysis;
  • examination and assessment of radiological situation;
  • soil gas survey;
  • examination and assessment of physical effects;
  • examination of flora and fauna;
  • social and economic studies;
  • sanitary-epidemiological and medical-biological research;
  • stationary observation (ecological monitoring);
  • office studies of materials and preparation of report.

The purpose and necessity of certain types of works and investigations, conditions of their exchangeability and combination with other types of surveys are defined in the program of engineering-ecological survey, subject to the type of construction, the responsibility level of designed building and structures, specific features of natural and man-triggered conditions, ecological exploration degree of hydrological regime of an area and design stage.

The goals of engineering-ecological survey are defined by peculiarities of environmental conditions, nature of existing and planned man-induced impacts and are changed subject to design stage.

Water well drilling

Deep industrial artesian wells are the only alternative of effective and safe centralized water supply of residential and industrial facilities as the underground water is the renewable recourse, the underground water is secured from pollution from surface, the quality of underground water conforms to Sanitary Regulations and Norms, except for natural water «pollution» (hardness, iron, fluorine), which can be removed by construction of water treatment plants.

Industrial artesian wells drilled for use of water-bearing grounds of carboniferous system, have high productivity and work during tens of years (up to 80 years with serviceable life of 25 years).