Based on the geotechnical failure criteria of the equivalent plastic strain and the geotechnical elastic-plastic constitutive relation, the random collision under gravity and the geotechnical interaction are considered to establish a nonlinear dynamics model of the interaction between the reamer and the geotechnical body, which is used in the finite element method. The horizontal directional drilling construction process is simulated when the reamer operates. The reamer produces a settlement in its operation, the settlement of the reamer increases with the construction time, the speed in the vertical direction changes in a range of -380~320 mm/s. The sedimentation rate increases with the reamer's drilling speed. The actual cross-section of the perforations is pear-shaped, as is the case in engineering examples.
AI Zhijiu
,
XIAN Yong
,
XIA Huan
,
JIAO Ruyi
,
JIANG Yong
. The Hole Shape under Horizontal Directional Drilling Crossing[J]. Science & Technology Review, 2014
, 32(16)
: 54
-57
.
DOI: 10.3981/j.issn.1000-7857.2014.16.009
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