Abstract
At the present time, Astana city is going on works by construction public transport system light railway transport (LRT). The article considers the project of LRT on problematical soils of Astana. The foundation of bridge created from bored piles with cross-section diameter of 1.0–1.5 m and length of 8–55 m. Design bearing capacity of each bored piles are from 4500 to 9500 kN. This paper presented results of integrity test (by ASTM D6760-08) and static load tests (by GOST 5686-94) of bored piles. In those conditions it is very important cases to control the integrity of concrete body of each bored piles. For checking the integrity which applying a Cross-Hole Sonic Logging method. Currently the non-destructive testing method are a cross-hole sonic logging offers the most reliable technique for assessment the integrity of bored deep pile foundation on construction site. Integrity inspections performed after installation are often the most reasonable alternative available to assess the shaft quality. The results used for interpretation the data of real site. Finally, some recommendations are presented for testing methods suitable for problematical ground conditions of Kazakhstan.
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