Sayfa 283D. Landslide Stabilisation and Remediation at Lyme Regis, Dorset, UK
Lyme Regis, a small town on the south coast of England, has buildings and a harbour…
Unfortunately, the landslides and coastal erosion have acted together to cause serious…
Figure 3. A general view of Lyme Regis before the main works in the town. Note the active Black Ven Landslide Complex which encroaches on the…
Comprehensive geological, geomorphological and geotechnical investigations were fundamental…
Figure 4. Lyme Regis - landslides: the construction of engineering geological models as each stage of investigation was completed (Brunsden, 2002).
| “The ground models …. were initially recognized from the surface geomorphological features, then supplemented with data from previous landslide studies, historical research, exposure logging and geological mapping. Subsurface form was defined by the ground investigation and verified by the monitoring programme and finally drawn as comprehensive ‘best fit’ landslide models for stability analysis. The design of the network of instrumentation and monitoring was determined by specific earth science ‘questions’ and the mapping provided clear guidance for the most effective positioning of boreholes for the main ground investigation.”
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Text Box 1. Lyme Regis – landslides: description of the construction of engineering geological models (Brunsden, 2002).…
The landslide stabilisation, coastal protection and other environmental improvements…
• Deployment of a project team with the appropriate range of skills and carefully…
• Assessment of risk throughout the project: illustrated for the project’s construction…
Geotechnical studies & investigations…
Figure 5. Lyme Regis – landslides: engineering geological, geomorphological, geotechnical and other investigations and studies (DS Fort, pers. com.).…
Figure 6. Lyme Regis - landslides: construction risk categories and ground instability mitigation (after DS Fort, pers. com).The project’s investigation and design activities, as depicted in Figure 5, include…
(v) in the various investigations and the long-term monitoring of ground movement…
(vi) in the creation of geological models and scenarios describing the ground’s…
(vii) in the assessment of geological and geotechnical hazards and risks, e.g. as…
(viii) in the stakeholder and public consultation.…
All the above activities followed industry guidance and regulations of the sort that…
Figure 6 shows that ground risk (ground instability) was one of eight classes of…
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