| Author | Nguyen Quoc Cuong |
| Call Number | AIT Thesis no.GE-07-19 |
| Subject(s) | Grouting
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Geosystem Exploration and Petroleum Geoengineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-07-19 |
| Abstract | An experimental study was carried out to investigate the application of Electrical Resistivity Tomography method in monitoring the changes brought by the injection of the chemical permeation grouting into a sandy soil. First, a sand tank was constructed. The tank of 30x30x60m size and filled with a sandy soil that was compacted to optimum moisture of 9%. The sodium silicate (Na2SiO3) was used as the grouting solution. It was mixed with water and the reactant (Formamide – HCOONH2) by the ratio 25:2:3 to form a gel. Before conducting the grouting and ERT test, a series of forward analysis was made using the software RES3DMODE (Loke, 2005), to understand the behavior of the injected soil and to find out the most suitable electrode arrangement that will be used in the ERT. The cross-borhole bipole-bipole AM-BN and the four gradient electrodes array seem to have given the best response. The setup of ERT testing was designed and conducted using the crosshole bipole-bipole array AM-BN, AB-MN as well as the borehole surface and the four gradient electrodes array. A total of 3 ERT measurements were done. The resisitivity measurement were then used as the input file for the inverse analysis by RES3DINV(Loke, 2004), the result could indicate very well the grouted part In conclusion a laboratory experiment of permeation grouting injection and ERT was successfully done. It is recommended that the same procedure be developed and implemented in the field. A great part of this research was spent on working with an open source code for investing resistivity data in the Matlab program based on the work by DOE (2007). This research work should be continued as well. |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-07-19 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Pham Huy Giao; |
| Examination Committee(s) | Noppadol Phien-wej;Meijde, Mark van der; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2008 |