 TS 1500 Classification of soil for civil engineering purposes 

 TS 1901 Methods of obtaining disturbed and undisturbed samples for civil engineering pur- poses 

 TS 3440 Rules for making concrete exposed to aggressive effects of liquids, soils and gases 

 TS 5744 In situ measurement methods of the properties of foundation soils in civil engineer- ing 

 TS 6108 Terms used in engineering geology 

 TS EN 206-1 Concrete - Part 1: Specification, performance, production and conformity 

## 5.1.3 Geotechnical report and ground improvement 

The Contractor shall submit to the Engineer, a Soil Investigation and a Geotechnical Report incorpo- rating a record of all the investigation work carried out by him. The Report shall include boring logs, borehole coordinates, records of field and laboratory tests, records of water level observations and rec- ommendations as to the bearing capacity and deformation properties of the soil and water inflow. The report shall be prepared in English. Five copies of this Report shall be submitted to the Engineer with- in one month of completing the field work. Laboratory tests shall be carried out in the laboratory ap- proved by the Engineer. 

The report shall cover the following for each and every structure, 

 ultimate and allowable bearing capacity of foundation soil 

 liquefaction analysis 

 immediate and consolidation settlements, and heave at excavations 

 drainage system of excavations 

 single pile capacity (if necessary) 

 ground improvement design (if necessary). 

## 5.1.4 Tests on ground water 

During the course of the work the Engineer will require samples of the ground water to be taken for testing to ascertain the present of harmful substances. The testing shall take place in accordance with TS 3440. 

The tests shall be performed in the beginning of the execution works in the laboratory on site before starting any concrete work. The results concerning adverse effects on concrete shall be evaluated ac- cording to TS EN 206 Section 4. 

## 5.1.5 Design of structures 

The Contractor shall use the data in the documents and results of the site investigations to design in detail every aspect of the Works, permanent or temporary, which is affected by the subsoil. This sta- bility of design shall be entirely the Contractor’ responsibility, however design is subject to the ap- proval by the Engineer. 

The site investigations and the geotechnical evaluations attached to the document are subject to change according to the plant structures and layout in the actual plant design. The surveys are given only for information purpose. The Contractor shall conduct new site and soil investigations according to the locations, dimensions, foundation depths and weights of the structures in his detailed design. The foundation, ground stability should be complied with Section 5.4 and 5.5. 

