Slope Stabilisation Works at Tai Hang & the Kennedy Town, Hong Kong

These are two slope stabilisation works projects, respectively at Lai Tak Tsuen at Tai Hang, and Kwun Lung Lau, Kennedy Town.

Environmental Concern

The two projects were close to residential premises. In the absence of proper dust prevention measures, the fugitive dust could impact the air quality and affect the residents in the 2 estates.

The slope works was very close to the residential buildings of Kwun Lung Lau

Dust emission from the slope works caused serious air pollution problems to nearby residents

Measures Adopted

Restriction - The number of drilling rigs on slope was reduced.

Dust Cover - The top, the front and one of the two sides of the drilling area were covered. Dusty materials were stored in bags.

Watering - Water was sprayed continuously to wet the dust particles during the drilling operation.

The drilling area of the slope works at Kwun Lung Lau was enclosed by impervious sheeting

Dusty materials after drilling operation were collected in bags

The drilling area of the slope works at Lai Tak Tsuen was enclosed by impervious sheeting

Small amount of water was continuously sprayed during the drilling operation

Observations & Achievements

With the adoption of these measures on-site, the dust emissions were effectively kept within the working area.