1. In recent years, the Aburi mountain range in the Eastern Region of Ghana, has experienced movement of geologic materials downslope to block the main AccraAburi road. These happened because of the unstable nature of the underlying geologic material in the area. You have been appointed the leader of a team of geologists, geotechnical engineers, civil engineers, and environmental experts to investigate the possible cause(s) and prescribe solutions to the problem. Discuss the measures you will employ to stabilize the underlying geologic materials on the mountain to prevent recurrence of the disaster.
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Aburi is north east of Accra, and the journey from Accra to Aburi is about 45 mins (will be less when the dual carriage road from Tetteh Quarshie Circle to Adenta Barrier is completed by 2014). Due to the altitude of Aburi, the climate is a lot cooler than neighbouring Accra. The road which climbs the hillside to Aburi is a toll road.
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The are different measures that can be employed to prevent the recurrence of the disaster
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- Covering land with impervious membranes to deter water in the landslide; steering surface water from landslides; removing groundwater from the landslides; reducing soil drainage. In order to enhance the pitch stability, pressure from the top of the pitch is also beneficial, in order to keep the weight from causing the layer to slip.
- The cover of vegetation defends land from landslides and erosion of soil. Efforts should therefore be made especially on slopes to maintain greenery. Trees on mountains and on cliffs should be planted to avoid deforestation. Reforestation after cutting down large areas of a forest can also help prevent landslides.
- There are numerous alternative methods for preventing landslides, such as modified geometer in slopes, the use of chemical substances for reinforcing material in a slope; the installation of structures such as piles as well as retaining walls, grouting rock fissures & joints, re-routing surface & underwater drainage, & diverting debris pathways.
To know more
Explain the effects of landslide - Brainly.in
https://brainly.in/question/5723086
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