Investigation of Damage Diagnosis of Retaining Wall Structures Based on the Hilbert Damage Feature Vector Spectrum

Table 1

Accidents of retaining wall collapse.

Time	Place	Consequence	Cause
2012	Shenwu city of Fujian Province, China	Destruction of many houses	Damages were not fund and repaired timely
2013	Shouyang city of Shanxi Province, China	12 deaths and 7 injuries	Damages were not paid much attention after detecting damages
2014	Qingdao city of Shandong Province, China	18 deaths and several injures	Damages caused by rainfall cause collapse of the wall
2015	Lanling city of Shandong Province, China	10 deaths and 3 injures	Construction quality faults cause collapse of the wall
2016	Quanzhou city of Fujian Province, China	2 deaths and 6 injures	Rainfall and construction quality faults cause collapse of the wall