## 3 Results and Discussion
### Analysis of the Creep Behavior of the LCP woven Geotextile  
Creep behavior represents a deformation process with time at a stress lower than the strength of the material [19; 20]. Typical tensile creep behavior is described in Figure 3 for creep strain (solid line) and creep strain (dotted line). Creep behavior can be divided into three stages: first, second, and third creep. In the first (or transient) stage, it is called transition creep; the initial deformation occurs and the strain increases nonlinearly as the deformation increases. In the second (or steady state) stage, the displacement increases linearly with time, resulting in almost constant strain. In the third stage, the deformation increases rapidly, leading to creep rupture, and in this stage, the creep strain increases rapidly.  
In the case of the LCP woven geotextile, if an earthquake occurs during actual use, an earthquake load is added, and long-term performance is affected. Creep behavior caused by the addition of seismic loads was measured and analyzed according to the SIM. In the creep characteristics evaluation, creep characteristics simulati  
Figure 3: Typical creep strain and strain rate behavior with time. The solid line represents the creep strain, and the dashed line the creep strain rate [21].  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{
\begin{tabular}{c} **Reduction** \\ **Factor** \\ \end{tabular} } & **RF\({}_{\textit{CR}}\)** & **RF\({}_{\textit{UV}}\)** & **RF\({}_{\textit{CD}}\)** & **RF\({}_{\textit{BD}}\)** & **IIRF** \\ \cline{2-6}  & 1.59 & 1.08 & 1.02 & 1.06 & 1.86 \\ \hline \hline \end{tabular}
\end{table}
Table 8: Total reduction factor of LCP woven geotextile’s long-term performance model.  
were evaluated by adding a load that considered earthquake conditions for 1 min at a specific point in time. The creep test was conducted at temperatures from 20 \({}^{\circ}\)C to 76 \({}^{\circ}\)C every 14 \({}^{\circ}\)C and with a load of 40-60% of UTS. After the creep test, the earthquake situation was simulated by additional testing for 1 min up to 80-100% of UTS after 1.5 h at 20 \({}^{\circ}\)C and 40-60% of UTS. The results are shown in Tables 10-12.  
Tables 10-12 show the initial creep strain and the maximum creep strain by adding 80-100% of UTS for one minute at creep loads of 40-60% of UTS. As shown in the table, the initial creep strain was shown at the initial time (0.01 h), and the maximum creep strain occurred at the time when the seismic load was added (438,000 h). Thus, the creep strain increased as the creep load increased and the added seismic load increased. In addition, the initial creep strain was constant when the creep load was the same, and increased as the creep load increased. Here, the creep strain at 40% of UTS and 100% seismic load was 10.35%, which was larger than in the case of a 100% seismic load at 50% of UTS and 60% of UTS. However, the reason was considered to be that the LCP woven geotextile was partially nonuniform or damaged, resulting in a large creep strain.  
The behavior of the LCP woven geotextile while assuming an earthquake occurrence 50 years after construction was predicted. Considering that the creep limit strain was 10%, it was predicted that the seismic load would exhibit a seismic resistance up to 90% of UTS of the LCP woven geotextile, assuming an earthquake 50 years after construction.