Analisis Daya Dukung Pondasi Dalam Terhadap Negatif Skin Friction di Semarang Utara (Analysis On Deep Foundation Bearing Capacity For Negatif Skin Friction In North Semarang)

Rifqi Brilyant Arief

Abstract


A deep foundation is often used on soft soil areas in North Semarang. Soft soil at these areas is about 25 meters deep. With the depth, the use of deep foundation results in considerable negative skin friction toward foundation. In a short term, foundations in soft soil take part in holding burden. In the long term, when soft soil consolidates, it contributes to push foundations downward. This makes security value of foundations decrease. In most of the cases, the difference of settlements among the existing buildings’ columns occurs. It results in fractural damages to the above structures. This research is aimed to identify the security value of several buildings with deep foundations. The age of the analyzed buildings is around 15 years. Settlement around these buildings has been identified based on the difference of elevation between the foundations supporting the buildings and the soil around the foundations. This indicates that the foundations experienced negative skin friction. The result of this research can be used as a reference in designing foundations for soft soil.

Key words : soft soil, consolidation, negatif skin friction

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Redaksi Jurnal Pondasi
PUSAT STUDI DAN KONSULTASI TEKNIK
Print ISSN : 0853-814X
Gedung Fakultas Teknik lantai II
Universitas Islam Sultan Agung Semarang
Jl.Raya Kaligawe KM 4 PO.BOX 1235
Tlp. 024-6583584 (Psw.510)
Fax .024 6582455
Semarang 50012