When nondestructive inspection is carried out on the
tunnel lining quality by the operation mode of handheld
radar antenna, many problems such as line deviation, instrument separation from
tunnel surface, low detection efficiency of reciprocating operation and many
potential safety hazards, exist. As a result, a tunnel lining quality detection
trolley which can realize single fullsection
mechanized operation is developed. The trolley integrates a multistage telescopic robotic arm and a ninechannel
tunnel quality detection system, and has key technologies such as single multiline synchronous detection, multichannel
radar antenna data acquisition control, antenna radar and tunnel wall
adaptation, mileage integrated positioning and video acquisition. It has been
applied in a tunnel of ZhengzhouWanzhou Highspeed Railway in Hubei Province, and good detection effect has been
achieved. Compared with the traditional single line detection method, the
detection efficiency is improved from 15 h/km to 1 h/km. On the other hand, the
radar antenna adaptive function ensures that the instrument is close to the
tunnel surface, and the detection is continuous and reliable; and the
application of ninechannel tunnel quality inspection
system can realize the informatization of tunnel lining quality detection to
some extent.
ZHANG Haitao
. Research and Application of Fullsection
Inspection Trolley for Tunnel Lining Quality[J]. Tunnel Construction, 2020
, 40(8)
: 1227
-1235
.
DOI: 10.3973/j.issn.2096-4498.2020.08.017
