Study on factors influencing pipe-soil interaction for pipejacking operations in Bangkok | |
| Author | Meissner, Jens |
| Call Number | AIT Thesis no.GE-02-06 |
| Subject(s) | Soil piping (Hydrology)--Thailand--Bangkok Tunneling |
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-02-06 |
| Abstract | The basic principles of pipe jacking as a tunnelling method appear straightforward but in practice involve complex interactions between the tunnelling equipment (tunnel boring machine or shield, main jack rams and inter jacking stations), the pipes and the ground. For instance, the contact stress between the pipes and the ground along with the soil characteristics determine the resistance to jacking and hence, the required equipment, the method of resisting the jacking force and the loads to be carried by the pipes during installation. This thesis gives in the first part an overview about the technique and equipment employed and exhibit reasons and influencing factors for the development of jacking forces extracted from intensive literature review as well as from discussions with machine operators, site engineers and project manager. In the second part information which were gained during a six-month-in-company training period, are presented how this technique is deployed on a particular project in Bangkok, Thailand. It displays an overview about geotechnical conditions in the project area including soil properties and testing programme, tunnel boring machines utilized and the construction of shafts and the line itself As friction forces usually constitute the main component of jacking loads which increase with jacking length, it is important to be able to quantify them accurately. The third part summarizes available calculation methods and models for development of friction forces and computations in order to compare frictional stress gathered from field monitoring (i.e. digital TBM driving records) with results of some frequently used calculation models. The last part introduces some general matters. which must be considered if microtunnelling or pipe jacking is to be successfully carried out and to provide feedback of experience gained in the field. However, it need to be mentioned that the technique is very complex and a vast amount of factors could lead to unforeseen or unwanted events. For this aim, attention is drawn to related recent research. |
| Year | 2002 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-02-06 |
| 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) | Glawe, Ulrich; |
| Examination Committee(s) | Noppadol Phien-wej;Takemura, Jiro; |
| Scholarship Donor(s) | European Union;Postgraduate Technology Studies Programme; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2002 |