Metody modyfikacji podłoża gruntowego pod fundamenty bezpośrednie mostów

Technologie wzmacniania podłoża gruntowego pod fundamenty obiektów inżynierskich istnieją i rozwijają się w Polsce od kilkudziesięciu lat. Otwarcie rynku na projekty infrastrukturalne, które realizowane są najczęściej na obszarach najmniej przydatnych pod zabudowę, wymogły szukanie metod oraz technologii posadowienia dróg i mostów przy wykorzystaniu materiału miejscowego.

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This article discusses the methods of soft ground improvement, which can be used to shallow foundation of the bridgehead. These methods are dividedinto main groups:shallow exchanged of the soft soils, static consolidation, vibration methods, dynamic methods, injection methods and concrete inclusion. The attention was put on the choise of methods, depending on ground conditions and the technological capabilities of the method. The article is to realize the designers (who choose the method of foundation inthe bridge structure) what is the most important thing that the attention should be put on to make the design safe construction. In the final section the short characteristic of projects realized by Soletanche Polska are shown. The first construction was located at DSM columns (0,8m diameter). This method was used in the Serock beltway investments. The second structure was the foundation of the road embankment which was located on the dynamic replacement columns. The experience at Polish market in design and execution of soft ground improvement, allow to affirm that we can modifty of the soft soil and make shallow foundation of the bridgehead.