Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
IMPACT OF EXPANDABLE SOIL ON FOUNDATION OF BUILDING STRUCTURES
This study was carried out in Addis Ababa where expansive soils are highly abundant. The aim of the study is to assess the general impact of expandable soil in Addis Ababa taking a case study in the newly constructed condominium houses. The choice of condominium houses are on the basis of being constructed on expansive soils. Accordingly, questionnaire survey, field investigation, soil samplings and subsequent laboratory testing were conducted. Questionnaire survey includes a total of 84 professionals were randomly selected from the list of the employees of Bole Arabsa and Koyefeche; and 90 owners from 45 block of condominium house were randomly selected from Jemo No.1, Yeka No.1 and Bole Ayatchefe. During field investigation and observations, 249 blocks were considered. In characterizing the soils engineering properties, 18 soil samples from Koyefeche and Bole Arabsa were collected and tested for free swell, water content, linear shrinkage and Atterberg limit (liquid limit, plastic limit and plasticity Index). Results showed that cracks found in many condominium houses whose pattern are mostly similar and ranging from slight to moderate crack damage. The damage ranges from dormant to moderate in 24.89% of blocks. It is observed that 41.36% of blocks have been cracked of masonry wall in different segments. It is also noted that 46.58% of blocks demonstrate settlement of masonry wall below the grade beam; 53.41% of blocks showed problem of suspending grade beam; and 18.07% of blocks column alignment problem due to suspension of grade beam. It is also found 77.8% of the soils test result showed high plasticity index. To support that most of the soil have high swelling potential.
IMPACT OF EXPANDABLE SOIL ON FOUNDATION OF BUILDING STRUCTURES
This study was carried out in Addis Ababa where expansive soils are highly abundant. The aim of the study is to assess the general impact of expandable soil in Addis Ababa taking a case study in the newly constructed condominium houses. The choice of condominium houses are on the basis of being constructed on expansive soils. Accordingly, questionnaire survey, field investigation, soil samplings and subsequent laboratory testing were conducted. Questionnaire survey includes a total of 84 professionals were randomly selected from the list of the employees of Bole Arabsa and Koyefeche; and 90 owners from 45 block of condominium house were randomly selected from Jemo No.1, Yeka No.1 and Bole Ayatchefe. During field investigation and observations, 249 blocks were considered. In characterizing the soils engineering properties, 18 soil samples from Koyefeche and Bole Arabsa were collected and tested for free swell, water content, linear shrinkage and Atterberg limit (liquid limit, plastic limit and plasticity Index). Results showed that cracks found in many condominium houses whose pattern are mostly similar and ranging from slight to moderate crack damage. The damage ranges from dormant to moderate in 24.89% of blocks. It is observed that 41.36% of blocks have been cracked of masonry wall in different segments. It is also noted that 46.58% of blocks demonstrate settlement of masonry wall below the grade beam; 53.41% of blocks showed problem of suspending grade beam; and 18.07% of blocks column alignment problem due to suspension of grade beam. It is also found 77.8% of the soils test result showed high plasticity index. To support that most of the soil have high swelling potential.
IMPACT OF EXPANDABLE SOIL ON FOUNDATION OF BUILDING STRUCTURES
Dejenie Abere (Autor:in) / Dr. Trufat Hailemariam (Autor:in)
01.01.2017
doi:10.20372/nadre:1547982423.67
Hochschulschrift
Elektronische Ressource
Englisch
DDC:
720
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