soil pressure behind retaining wall with narrow backfill

soil pressure behind retaining wall with narrow backfill

soil pressure behind retaining wall with narrow backfill

 

soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill

 

تأليف: ayman m. nassar(مؤلف):: jihad hamad(مشرف)
اللغة: إنجليزي
النشر: gaza strip:author 2012
المكان: خانيونس-مكتبة الجنوب المركزية-مجموعات خاصة/خـانيونس
النوع: رسائل جامعية
عدد الصفحات: 73
المواضيع: هندسة الانشاءات:: structural engineering and underground construction
رقم التصنيف: 624.1
الرقم العام: 1341522

العنوان : soil pressure behind retaining wall with narrow backfill

 

Abstract

 

High traffic demands have led to widening of existing highways to accommodate increased traffic volume. However, due to the high cost of widening the roads and limited space available at the site, construction of earth retaining walls is often done under a constrained space.
This leads to retaining walls with narrow backfill. This type of walls is referred as “Narrow” retaining walls. Various studies suggest the mechanics of narrow retaining walls differs from traditional walls and the lateral earth pressures in narrow retaining walls are no longer properly predicated by using conventional at-rest or active equations.
This research presents the study of retaining wall in case of narrow backfill. Both of theoretical study and experimental work were conducted to calculate the effect of soil pressure at different backfill width ratios.
Theoretical study was carried out using numerical analysis (plaxis software program). Different cases were simulated at different aspect ratio (w/H) ranging between 0.2 to 1.4 by 0.2 increment. In addition, the experimental work was performed to verify the obtained results by numerical modeling.
The experimental work was conducted using a centrifugal model and Geo-kon device was employed to measure the soil pressure. The results indicated that, due to boundary constraint, the earth pressure decreases as the decrease of the wall aspect ratio also, the results show that lateral earth pressure coefficient considerably becomes constant at aspect ratio of 0.6 and less than rankine earth pressure coefficient at active condition.
This implies that earth pressure theories would overestimate the earth pressures and the design based on the values of conventional earth pressure is somewhat overly conservative and uneconomical when applying to the design of narrow walls.
Accordingly, different charts were developed due to experimental work and theoretical study to calculate the lateral earth pressure for narrow backfill.

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تحميل

 

soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill
soil pressure behind retaining wall with narrow backfill

 

طالع ايضا 

 

المصدر

مؤسسة المجلة العربية للعلوم و نشر الأبحاث أنشئت عام 1436هـ 2015م، وهي متخصصة في مجال النشر العلمي ومن خلال سنوات عملها، أثبتت المؤسسة لها مكاناً في مجال التحكيم والنشر العلمي في العالم العربي من خلال مجموعة من المجلات العلميّة المحكّمة والمتخصصة والمعتمدة دوليا من الكثير من الجامعات و الكليات و المفهرسة في عدد من قواعد البيانات العالمية.

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