Ecological Restoration and Comprehensive Treatment of an Abandoned Quarry-A Case Study of Eastern Honghualing Quarry Longgang of District,Shenzhen
Currently,there are many abandoned quarries having geological and environment hazards in Shenzhen.The case his-tory of the Eastern Honghualing Quarry of Longgang District,Shenzhen is presented in this paper as an example for the de-tailed global and local stability analysis on the slope throughout the field investigations.The current slope failure modes,vege-tation distribution and the soil erosion of the quarry are investigated.Comprehensive remediation measures such as slope clear-ing,SNS active protection net+ground anchor,reinforced concrete grid beams+ground anchor and drainage ditches are pro-posed for the quarry slopes.The ecological and environment restoration program include the stacking ecological bags within the grid beams,planting of climbing vines and shrubs in the planting channels and spraying and mixing plants to restore the vegeta-tion.The analysis of the construction process and the monitoring results after the construction shows that the slope deformation has tended to be stable,and the quarry has been environmentally restored.The remediation program is feasible and provides a reference for the restoration and comprehensive treatment of the ecological and environmental issues of the similar abandoned quarries.
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