IMHE researchers invented a method and application of silt retaining and consolidating in debris flow gully which patent has been issued in China.

The method comprises: planting a plurality of brush woods for increasing the roughness of the gully bed in a silt transfer area between a debris flow flowing area and a silt settling area in gully; planting bank-protecting and scouring-preventing forest at the foot of a slope of the gully along the bank of  gully for preventing flowing water from scouring the silt on the bank of  gully; and planting arbor and bush combined improved protection forest in the silt settling area to improve the impact strength of soil body. When the method is used, other civil engineering measures in combination are determined according to the occurrence frequency of debris flow. Compared with the prior art, the method can effectively retain, consolidate and improve the silt in the silt transfer area, on the gully slope and in the silt settling area of the debris flow gully, consolidate and improve retained and deposited silt while reducing silt sources, improve the self-stability of the silt soil body in the silt settling area, strengthen the sand control capability of the gully and improve the landscape of the gully.

Patent Number： ZL 2011 1 0009123.8

Applicants：Institute of Mountain Hazards and Environment (IMHE), CAS

Inventors：Wang Daojie, Cui Peng, Lin Yongming, Chen Xiaoqing, You Yong, Ge Yonggang, Hong Yong