Effects of the Length of Jet Grouted Columns and Soil Profile on the Settlement of Shallow Foundations
In this paper, the effect of length of jet grouted columns and varying soil profile under shallow foundations of buildings constructed on the liquefiable ground was studied. The isolated shallow footing pad which supports a typical simple frame structure was constructed on the liquefiable ground....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Mehran University of Engineering and Technology
2012-07-01
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| Series: | Mehran University Research Journal of Engineering and Technology |
| Subjects: | |
| Online Access: | http://publications.muet.edu.pk/research_papers/pdf/pdf667.pdf |
| _version_ | 1811326084791140352 |
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| author | Zaheer Ahmed Almani Ashfaque Ahmed Memon Naeem Aziz Memon |
| author_facet | Zaheer Ahmed Almani Ashfaque Ahmed Memon Naeem Aziz Memon |
| author_sort | Zaheer Ahmed Almani |
| collection | DOAJ |
| description | In this paper, the effect of length of jet grouted columns and varying soil profile under shallow foundations
of buildings constructed on the liquefiable ground was studied. The isolated shallow footing pad which
supports a typical simple frame structure was constructed on the liquefiable ground. This ground was
reinforced with jet grouted column rows under the shallow foundations of structure. The system was
modeled as plane-strain using the FLAC 2D (Fast Lagrangian Analysis of Continua) dynamic modelling
and analysis code. This case focuses on the length of jet grouted columns in a soil profile and the effect
of soil profiles of varying thickness on the settlements of building structure when the soil is liquefied
during an earthquake. The results show that liquefaction-induced large settlements of shallow foundation
of building decrease to tolerable limits with the increase in the length of columns. For soil profiles, with
a relatively thinner liquefiable layer, a certain minimum length of columns (extended in base non liquefiable
layer) is required to meet the settlement tolerable limits. For soil profiles, with a relatively thicker
liquefiable layer, this length should be equal to the thickness of the liquefiable layer from the footing base
plus some extension in the base non liquefiable dense layer. In the soil profile with the base liquefiable
layer underlying the non liquefiable layer, settlements could not be reduced to the tolerable limits even
with columns of relatively larger length which may be critical. |
| first_indexed | 2024-04-13T14:44:17Z |
| format | Article |
| id | doaj.art-5e781457d22f476bad1c586691a5c179 |
| institution | Directory Open Access Journal |
| issn | 0254-7821 2413-7219 |
| language | English |
| last_indexed | 2024-04-13T14:44:17Z |
| publishDate | 2012-07-01 |
| publisher | Mehran University of Engineering and Technology |
| record_format | Article |
| series | Mehran University Research Journal of Engineering and Technology |
| spelling | doaj.art-5e781457d22f476bad1c586691a5c1792022-12-22T02:42:49ZengMehran University of Engineering and TechnologyMehran University Research Journal of Engineering and Technology0254-78212413-72192012-07-01313517528667Effects of the Length of Jet Grouted Columns and Soil Profile on the Settlement of Shallow FoundationsZaheer Ahmed AlmaniAshfaque Ahmed MemonNaeem Aziz MemonIn this paper, the effect of length of jet grouted columns and varying soil profile under shallow foundations of buildings constructed on the liquefiable ground was studied. The isolated shallow footing pad which supports a typical simple frame structure was constructed on the liquefiable ground. This ground was reinforced with jet grouted column rows under the shallow foundations of structure. The system was modeled as plane-strain using the FLAC 2D (Fast Lagrangian Analysis of Continua) dynamic modelling and analysis code. This case focuses on the length of jet grouted columns in a soil profile and the effect of soil profiles of varying thickness on the settlements of building structure when the soil is liquefied during an earthquake. The results show that liquefaction-induced large settlements of shallow foundation of building decrease to tolerable limits with the increase in the length of columns. For soil profiles, with a relatively thinner liquefiable layer, a certain minimum length of columns (extended in base non liquefiable layer) is required to meet the settlement tolerable limits. For soil profiles, with a relatively thicker liquefiable layer, this length should be equal to the thickness of the liquefiable layer from the footing base plus some extension in the base non liquefiable dense layer. In the soil profile with the base liquefiable layer underlying the non liquefiable layer, settlements could not be reduced to the tolerable limits even with columns of relatively larger length which may be critical.http://publications.muet.edu.pk/research_papers/pdf/pdf667.pdfLiquefiable GroundJet Grouted ColumnsLength of ColumnsSoil ProfileNumerical Modelling. |
| spellingShingle | Zaheer Ahmed Almani Ashfaque Ahmed Memon Naeem Aziz Memon Effects of the Length of Jet Grouted Columns and Soil Profile on the Settlement of Shallow Foundations Mehran University Research Journal of Engineering and Technology Liquefiable Ground Jet Grouted Columns Length of Columns Soil Profile Numerical Modelling. |
| title | Effects of the Length of Jet Grouted Columns and Soil Profile
on the Settlement of Shallow Foundations |
| title_full | Effects of the Length of Jet Grouted Columns and Soil Profile
on the Settlement of Shallow Foundations |
| title_fullStr | Effects of the Length of Jet Grouted Columns and Soil Profile
on the Settlement of Shallow Foundations |
| title_full_unstemmed | Effects of the Length of Jet Grouted Columns and Soil Profile
on the Settlement of Shallow Foundations |
| title_short | Effects of the Length of Jet Grouted Columns and Soil Profile
on the Settlement of Shallow Foundations |
| title_sort | effects of the length of jet grouted columns and soil profile on the settlement of shallow foundations |
| topic | Liquefiable Ground Jet Grouted Columns Length of Columns Soil Profile Numerical Modelling. |
| url | http://publications.muet.edu.pk/research_papers/pdf/pdf667.pdf |
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