7.4. Subsidence monitoring system, trans
subsidence problem usually occurs toward the burial sites with weak geological background. When CTRSH organic components decompose and turn into leachate emissions will create space inside the waste leads to the risk of subsidence. In addition, the subsidence also occurred due to the increase of waste layer on top reduces the load bearing capacity of the ground below, especially against the background of weak geological burial sites. Subsidence will break eventually cover the burial sites, affect gas recovery system, surface water drainage capacity and operation premises reused after closure.
Scope buried subsidence area filling depends on the characteristics of the geology and the pressure on the ground, the initial level of compression, waste characteristics, decomposition degree, influenced by the adhesive when water and air being pushed out of the solid waste pressed, and burial depth. The study showed that the final subsidence occurred within the first 5 years and in dry climates, subsidence rate will be lower. Therefore, plans and emergency response plans subsidence and burial sites during this period always ready.
Also, the problem of subsidence, landslides also occurred due to the work of strengthening the foundations of the original burial can not be guaranteed. Landslide incidents occurred not only affect the stability of the buildings but also affecting neighboring buildings.
Therefore, to avoid the risk of subsidence due to soft ground locally and control the ability to transfer location of burial plots in the area of high-tech landfill cell, VWS has adopted modern technology, set up monitoring systems and monitoring subsidence displacement.
Figure ..: Construction of subsidence monitoring system
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