ASSERT - Kontroll av markstabilisering med resistivitetstomografi
(2020) Grundläggningsdagen 2020 p.1-10- Abstract
- Ground improvement with lime-cement pillars is becoming increasingly common in the Nordic countries for exploitation of areas with poor stability. However, there is a need for non-destructive methods for volumetric quality control of the ground improvement. The quality control can be divided into two steps where the first include quality control at the installation process with monitoring of production parameters such as rotation and penetration speed, air pressure and binder feed rate. The second step involves determining the spatial continuity and the mechanical properties of the treated subsurface after curing by for example a reversed pillar penetration test, complete exposure or core drilling.
ASSERT (Assessment of Soil... (More) - Ground improvement with lime-cement pillars is becoming increasingly common in the Nordic countries for exploitation of areas with poor stability. However, there is a need for non-destructive methods for volumetric quality control of the ground improvement. The quality control can be divided into two steps where the first include quality control at the installation process with monitoring of production parameters such as rotation and penetration speed, air pressure and binder feed rate. The second step involves determining the spatial continuity and the mechanical properties of the treated subsurface after curing by for example a reversed pillar penetration test, complete exposure or core drilling.
ASSERT (Assessment of Soil Stabilization using Electrical Resistivity Tomography) is an on-oing research project with focus on quality control in direct connection with mixing of the binders based on electrical resistivity tomography (ERT). The ERT-method has in several cases been shown to efficiently differentiate treated soil from untreated. Hence, is the method an interesting option for direct and rapid volumetric quality control of the stabilized soil so that zones which needs to be supplemented can be identified at production stage while personnel and equipment are at site. The ASSERT project involves test and verification of the method in different geological environments and scales, including full-scale tests for different types of stabilization techniques. Additionally, method development and adaptations to make the quality control applicable are also included in the project to enable a robust, rapid and sustainable use in routine operations.
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Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e9a8b799-2efa-4e40-9979-b0357adc0394
- author
- Olsson, Per-Ivar LU ; Lumetzberger, Mikael LU ; Hedblom, Per LU and Dahlin, Torleif LU
- organization
- alternative title
- ASSERT - Assessment of Soil Stabilisation using Electrical Resistivity Tomography
- publishing date
- 2020-03-12
- type
- Contribution to conference
- publication status
- published
- subject
- pages
- 10 pages
- conference name
- Grundläggningsdagen 2020
- conference location
- Stockholm, Sweden
- conference dates
- 2020-03-12
- project
- Assessment of Soil Stabilisation using Electrical Resisitivity Tomography
- language
- Swedish
- LU publication?
- yes
- id
- e9a8b799-2efa-4e40-9979-b0357adc0394
- date added to LUP
- 2020-09-03 18:27:45
- date last changed
- 2020-09-29 02:19:21
@misc{e9a8b799-2efa-4e40-9979-b0357adc0394, abstract = {{Ground improvement with lime-cement pillars is becoming increasingly common in the Nordic countries for exploitation of areas with poor stability. However, there is a need for non-destructive methods for volumetric quality control of the ground improvement. The quality control can be divided into two steps where the first include quality control at the installation process with monitoring of production parameters such as rotation and penetration speed, air pressure and binder feed rate. The second step involves determining the spatial continuity and the mechanical properties of the treated subsurface after curing by for example a reversed pillar penetration test, complete exposure or core drilling. <br/>ASSERT (Assessment of Soil Stabilization using Electrical Resistivity Tomography) is an on-oing research project with focus on quality control in direct connection with mixing of the binders based on electrical resistivity tomography (ERT). The ERT-method has in several cases been shown to efficiently differentiate treated soil from untreated. Hence, is the method an interesting option for direct and rapid volumetric quality control of the stabilized soil so that zones which needs to be supplemented can be identified at production stage while personnel and equipment are at site. The ASSERT project involves test and verification of the method in different geological environments and scales, including full-scale tests for different types of stabilization techniques. Additionally, method development and adaptations to make the quality control applicable are also included in the project to enable a robust, rapid and sustainable use in routine operations.<br/>}}, author = {{Olsson, Per-Ivar and Lumetzberger, Mikael and Hedblom, Per and Dahlin, Torleif}}, language = {{swe}}, month = {{03}}, pages = {{1--10}}, title = {{ASSERT - Kontroll av markstabilisering med resistivitetstomografi}}, url = {{https://lup.lub.lu.se/search/files/84308216/3B_FoU_Olsson_et_al.pdf}}, year = {{2020}}, }