EARTHBAG BUILDING TECHNOLOGY: A POTENTIAL FLOOD BARRIER WALL

Joan Wang Yee Juen1,*, Jason William Vitales2, Dalmon Peter Manganji3

1,2Jabatan Kejuruteraan Awam, Politeknik Kota Kinabalu, Kota Kinabalu, Sabah, Malaysia

3 Jabatan Kejuruteraan Mekanikal, Politeknik Kota Kinabalu, Kota Kinabalu, Sabah, Malaysia





ABSTRACT

Flooding causes mental stress and disrupts the continuity of life for affected victims. Despite suffering massive losses from flash floods, a viable solution to mitigate the menace of floods remains elusive. This study aims to examine the potential of Earthbag technology as an alternative solution to prevent heavy rainwater from entering the house by building an Earthbag Flood Barrier Wall. The objectives of this study are: (1) to prepare small and standard-size earthbag samples, (2) to obtain the lateral force and coefficient of static friction of the earthbags, and (3) to compare the result of lateral force and coefficient of static friction test for each sample. The research discussed Case 1 - Earthbag without foundation and Case 2 - Earthbag with foundation. Each case discussed further two types of bag size and binder: Sample 1 - Small size bag (460 mm x 600 mm) and Sample 2 - Standard size bag (460 mm x 750 mm), and Binder 1 - Velcro Strap and Binder 2 - Barbed Wire. Researchers have carried out Lateral Test and Tilting Test for comparison. The findings show that a sample of a Standard size earthbag with a foundation and using a Velcro Strap binder (BVF) has the lowest ratio of Change in Distance per Lateral Force (0.064mm/N) and the highest coefficient of static friction with the tangent of the angle at which slippage occurs is more than 90 degree. In conclusion, sample BVF exhibits a higher level of stability and a reduced susceptibility to structural collapse. An additional research suggestion is to conduct permeability and lateral tests for the earthbag flood barrier wall with a mortar finish.  


Keywords:

  Keywords: Earthbag flood barrier lateral test