The existing models for calculating shield muck volume
exhibit a low accuracy. To address this issue, an novel shield muck volume
calculation model—the irregular triangular prism model—s proposed. The model creates the enveloping lines of muck surface
contour and cut the muck into n irregular triangular prisms along the
enveloping lines. By calculating volume of each prism, the volume of muck can
be obtained. The model fuses two adjacent frames of data to fill the missing
muck information between the two frames of data, thus restoring the real
contour of the muck more accurately. Finally, a muck volume measuring platform
is constructed, and the sandstone, sandy soil, and stone are used as
experimental samples to test the measuring accuracy of two models. The results
show that: (1) Compare to cross-sectional integration
model, the irregular triangular prism model exhibits 13% and 25% increase in
data stability and accuracy, respectively. (2) The measuring accuracy of stone,
sandstone, and sandy soil by irregular triangular prism model is improved by ±5.4%, ±3.8%, and ±1.8%,
respectively.
ZHOU Shuliang
,
WEI Xiaolong
,
XIE Hongwu
,
FENG Shuo
,
LIN Fulong
,
HUANG Zhen
,
JIAO Jingbo
. Muck Volume Measurement System Based on Irregular
Triangular Prism Model[J]. Tunnel Construction, 2025
, 45(S1)
: 88
-95
.
DOI: 10.3973/j.issn.2096-4498.2025.S1.010
