Engineering-geological researches provide

complex research of engineering-geological conditions of area (platforms, sites, road lines, roads) projected construction, including: a relief, a geological structure, geomorphological and hydro-geological conditions, structure, a condition and properties of soils.

Into structure of engineering-geological researches enter:

• Gathering and processing of materials of researches of the last years;
• Routing supervision (reconnaissance inspection);
• Sinking of mountain developments (drilling of engineering-geological chinks);
• Geophysical researches;
• Field researches of soils (static and dynamic sounding);
• Hydro-geological researches;
• Laboratory researches of soils and underground waters;
• Inspection of soils in the bases of existing buildings and constructions;
• Office studies of geological materials;
• Drawing up of the technical report.

Geotechnical (geological and engineering) researches including within: engineering wells making, by depth up to 3 meters. Synchronously with drilling of wells, was providing documentation of geological profiles of soils, and take samples of soils (with monolith and violated structures, for their researching in laboratory). For determination of physic-mechanical characteristics of soils, we are making: static and dynamic sounding of ground, up to depth of 20 meters. Wells-boring works been provide by self-propelled drilling-machines: УГБ -1ВС and ПБУ-1М, with rope - impact and core-rotation methods. Determination of physic-mechanical characteristics of soils samples, we make in our own “soils laboratory” of Petnieks LTD. Geological materials processing, calculation and reporting, we makes in digital format by all modern engineering PC programs and electronicequipments.

On the period from 1990 till 2008 years ”Petnieks” LTD was made geotechnical (geological and engineering) researches for providing approx. 300 building constructions. Most interesting and important of them are:

• “Ledus Halle” ice sport complex / Daugavpils, Latvia
• reconstruction of the “Locomotive” stadium / Daugavpils, Latvia
• oil terminal “Stalkers” on Malu st. / Daugavpils, Latvia
• Luznavas cathedral / Lūznava, Rezeknes department, Latvia
• reconstruction of Ciolkovska, Mendeljeeva, Shaura, Spalu and Vishku streets / Daugavpils, Latvia
• reconstruction of Daugavpils – Demene highway / Daugavpils department, Latvia
• Gymnasium of Kraslava Sport complex / Kraslava, Latvia
• 18 floor administration-living complex project / Daugavpils, Latvia
• and many others projects_

Geotechnical control contain:

• quality assurance of the bases of constructions by visual supervision and sampling with definition of their characteristics in laboratory.
• visual supervision and sampling of a ground in strip mines, for an estimation of the grounds quality that will be used for the device of embankments, return backfills and other geotechnical and building works (according to the Latvian standards).
• sampling of soils from the laid and condensed embankments, the return backfills tranches for definition of density, granulometrical structure of soils, factor of condensation of an embankment. In according to the task of the customer, sampling for other characteristics of soils definitions (filtration coefficient and others services).

We provide the control over construction and reconstruction of such objects as:

“Ditton Nams” trade multicomplex / Daugavpils,Latvia

stadium of ”Lokomotīve” (“Lokomotive”) (reconstruction) / Daugavpils, Latvia

“Daugavpils Autoosta” central auto station of Daugavpils / Daugavpils, Latvia

“Ledus Halle” ice sport complex / Daugavpils, Latvia

“Daugavpils multifunctional sport complex” / Daugavpils, Latvia

• “The cooperative with EU, Daugavpils city project of reconstruction of underground networks of water pipes, the water drain and heating systems 2007 / 2008” (the control of soils on the reconstruction places) / Daugavpils, Latvia
• “Gas terminal” “Intergāze” LTD / Daugavpils, Latvia;
• point of customs control on the railway cargo station ”Rezekne” / Rezekne;
• “K-RAUTA” trade complex / Daugavpils, Latvia;
• and so many other projects in sectors of the state and private construction.