1.TEMELTA UNIQUE SOLUTIONS IN GEOTECHNICAL WORKS www.temeltas.com.tr www.facebook.com/temeltasinsaatas

2. BORED PILES 3. Usually bored pile is used for those tall buildings or massive industrial complexes, which require foundations that can bear the load of thousands of tons, most probably in unstable or difficult soil conditions. Bored piling works requires specialist bored piling contractor to follow up. 4. What is a Bored Pile? Bored pile is another type of reinforced concrete pile, which is used to support high building producing heavy vertical loads. Bored pile is a cast-in-place concrete pile where the bored piles have to be cast on the construction site. Bored piling is cast by using bored piling machine which has specially designed drilling tools, buckets and grabs, its used to remove the soil and rock. Normally, it can be drilling into 100 meters depth of soil. 5. What is a Bored Pile? The advantage of bored piling is the drilling method produces little vibration and lower noise level. The drilling method is depending on the soil condition, so the piling contractor has to do soil investigation and decide which drilling technology has to be carried on. Piling contractor decide the correct drilling technology and minimize disturbance of the surrounding soil. For cohesion-less soil such as sands, gravels, silts, etc., whether its under the water table or not, the pile bore hole must be supported using steel casing or stabilizing mud such as bentonite suspension or water. After these, reinforcement bar will be put into the bore hole and concrete will be poured into the bore hole. 6. Bored piles can be classified into two main groups, according to their load bearing behaviour: Friction piles, which transfer load mainly by frictional resistance along the shaft; Endbearing piles in which load is primarily transferred to the surrounding soil of through the pile base. Depending on the structural requirements, bored piles may be constructed; Either singly, or in groups or as walls using secant, contiguous or king piles, with or without infill. 7. Bored Pile Advantages The main advantages of bored piles over conventional footings or other types of piles are: Piles of variable lengths can be extended through soft compressible or swelling soils, into suitable bearing material. Piles can be extended to depths below frost penetration, and seasonal moisture variation. Large excavations and subsequent backfill are eliminated. Adjacent soil is not disturbed or remolded. Absence of vibration will not disturb adjacent piles or structures. Extremely high capacity caissons can be obtained by expanding the base of the shaft up to three times the shaft diameter, thus eliminating construction of caps over multiple pile groups. For many design situations bored piles offer higher capacities with potentially better economics than driven piles. 8. BORED PILE PROCEDURE There is a simple step-by-step method on how to construct the bored pile in the construction site; SET UP THE LOCATION OF BORED PILE DRIVING of CASING DRILLING CLEANING the BOREHOLE INSTALLATION of REINFORCEMENT INSTALLATION of TREMIE PIPE POURING OF CONCRETE REMOVING of CASING 9. BORED PILE SET UP THE LOCATION 10. BORED PILE DRIVING of CASING 11. BORED PILE DRILLING 12. BORED PILE CLEANING the BOREHOLE *Cleaning buckets 13. BORED PILE INSTALLATION OF REINFORCEMENT 14. BORED PILE INSTALLATION of TREMIE PIPES 15. BORED PILE POURING OF CONCRETE 16. BORED PILE REMOVING of CASING 17. CFA Piling TEMELTA can also successfully perform CFA Piling method 18. Contiguous Bored Piles/Secant Piles Closely spaced bored piles can be used to form a retaining wall, perhaps for the construction of a deep basement or a cut and cover tunnel. The piles may be constructed so that they virtually touch each other (contiguous). The gaps between the piles can be grouted to form a watertight retaining wall. Alternatively (secant piles) every other pile may be constructed, with their centres less than two diameters apart. In-fill piles are then bored, cutting into the adjacent piles to form a continuous structure. To aid construction, the first sets of piles may be cast with a lower grade of concrete. These may not be load-bearing and act as seals between the main load bearing piles. 19. Contiguous Bored Piles/Secant Piles As the piles interlock, this form of construction leads to a more efficient form of structure. During excavation of the soil, the piles will generally require propping before the permanent floor and/or roof structure are completed. Because of the form of construction, the exposed piles will be fairly rough in appearance. Thus, in most cases, an inner wall, which may or may not be structural, will be built or some decorative surface applied, e.g. sprayed concrete or cladding. A method of drainage will generally be required between the piles and any inner wall. 20. AN EXAMPLE OF PILED WALL 21. AN EXAMPLE OF PILED WALL 22. AN EXAMPLE OF PILED WALL 23. GUIDEWALL of SECANT PILES 24. SECANT PILES FROM TOP 25. AZERBAIJAN, Baku, CRESCENT DEVELOPMENT, STRABAG-AECOM 26. AZERBAIJAN, Baku, CRESCENT DEVELOPMENT, STRABAG-AECOM 27. MACEDONIA, Skopje, Cevahir Avm & Residance, CEVAHIR CONSTRUCTION 28. MACEDONIA, Skopje, Cevahir Avm & Residance, CEVAHIR CONSTRUCTION 29. AZERBAIJAN, Baku, HILTON HOTEL, KORAY-ISR JV 30. IRAQ, Baghdad, GERMAN HOSPITAL, ATK CONSTRUCTION 31. IRAQ, Basrah, SHAT AL BASRAH 10*125MW P.P. PROJECT / IRAQ MINISTRY OF ELECTRICITY 32. IRAQ, Basrah, AL NAJYBIA POWER PLANT PROJECT / ENKA 33. TURKEY, Istanbul, MARMARAY PROJECT, GAMA- NUROL ORDINARY PARTNERSHIP 34. TURKEY, stanbul, VADSTANBUL, EVYAP 35. TURKEY, stanbul, VADSTANBUL, EVYAP 36. TURKEY, stanbul, VADSTANBUL, EVYAP 37. TURKEY, stanbul, VADSTANBUL, EVYAP 38. TURKEY, stanbul, SABHA GKEN AIRPORT, LMAK- GMR ORDINARY PARTNERSHIP 39. TURKEY, Samsun, COMBINED CYCLE POWER PLANT 40. TURKEY, Samsun, COMBINED CYCLE POWER PLANT 41. TURKEY, Erzurum, ARKUN DAM PROJECT, LMAK CONSTRUCTIONS 42. TURKEY, stanbul, ZINCIRLIKUYU UNDERPASS, STANBUL METROPOL MUNICIPALITY 43. LOAD TESTS 44. LOAD TESTS STATIC AXIAL COMPRESSION LATERAL LOAD TEST DYNAMIC LOAD TEST TENSION LOAD TEST 45. LOAD TESTS INSTRUMENTED LOAD TESTS (STRAINGAGE) O-CELL(OSTERBERG) TESTS BI-DIRECTIONAL TESTS 46. STATIC AXIALCOMPRESSION TEST TEST LAYOUT PLAN 47. CROSS SECTION 48. REPORT 49. Wide Range of Geotechnical Testing Solutions are Available@Macedonia 50. DYNAMIC LOAD TEST 51. DYNAMIC LOAD TEST 52. TENSION LOAD TEST 53. LATERAL LOAD TEST 54. O-CELL(OSTERBERG) TESTS 55. INSTRUMENTED LOAD TESTS (STRAINGAGE) 56. PILE INTEGRITY TEST 57. PILE INTEGRITY TEST 58. VERTICALITY TEST USING JEAN LUTZ DEVICE 59. BENTONITE TESTING 60. THANK YOU