To investigate the acceleration characteristics of the
submerged floating tunnels(SFTs) under the action of wave load, a model test of
the free elliptical section at both ends with a scale of 1:60 is conducted.
First, the acceleration response of key points of the elliptical section under
wave load is analyzed using the model test. Next, the influence of wave period
and height on the timehistory variation, frequency domain,
and extreme values of longitudinal, transverse, and vertical acceleration of
SFT are discussed. The results are summarized as follows: (1) The timehistory of the longitudinal, transverse, and vertical acceleration
of the tube increases with increasing wave height, and the maximum value of
longitudinal acceleration fluctuates greatly. (2) The timehistory of transverse acceleration changes from high frequency to
low frequency, and the acceleration peaks show an obvious nonlinear growth
trend. (3) The vertical acceleration exhibits a multiple and periodic
variation. The timehistory of acceleration displays a
highfrequency and multipeak
in a small period, and its peak value increases initially, followed by a
decrease with increasing wave period.
WANG Fang
,
LI Ke
,
DING Hao
,
LI Penghui
,
HE Tian
,
HUANG Bo
,
CHENG Liang
. Experimental Study on Acceleration at Sectional Key
Points of Elliptic Tube Segment Model With Two Free
Ends Under Wave Load[J]. Tunnel Construction, 2023
, 43(10)
: 1741
-1749
.
DOI: 10.3973/j.issn.2096-4498.2023.10.010
