The numerical investigation of the weak clay soil treatments using vacuum preloading and vertical drains without embankment surcharge
Subject Areas : محاسبات نرم در علوم مهندسی
mehdi mokhberi
1
,
Mohammad Mehdi Pardsouie
2
*
,
mehdi momeni roghabadi
3
1 - assistant professor Estahban azad university
2 - Estahban Azad university
3 - civil engineering department
Keywords: soil treatment, vertical drains, consolidation, vacuum preloading, clay,
Abstract :
Due to the fast growth of urban and industrial facilities, the necessity of construction in new land becomes inevitable. Most of these lands were left as a result of the existence of weak layers that make them unsuitable for construction. One the methods in treatment of such lands that have weak clay layers is the application of surcharge with or without prefabricated vertical drains or vacuum. In this literature first a brief description of the vacuum and surcharge preloading is presented and then a case history was investigated by finite element method that consists of only vacuum and prefabricated vertical drains without embankment. Based on the results the application of vacuum preloading alone even in the absence of surcharge, would give satisfactory results, especially where the application of surcharge preloading is not possible due to the unavailability of suitable loading material or the existence of sensitive buildings or infrastructures. The results of this literature can be used by consulting companies or personals who are active in land reclamation, especially in offshore regions.