CAJ | 학술논문

FRP不同于钢筋材料特性， FRP土钉与灌浆材料的黏结力分布与发展规律等作用机理一直是研究的难题和急需解决的问题。通过在FRP土钉中埋设光纤光栅传感器，并将FRP土钉用于实际边坡支护，在施工完成后进行现场拉拔力测试试验，测定短期拉拔力作用下FRP土钉的受力特性，分析表明：FRP土钉承担了支护作用；受力初期钉体近端先承力；随着拉拔力增大，钉体各点受力增长率不一致，近端初期增长较快，到一定拉拔力后，钉体各点拉拔力增长率趋于常数；钉体各位置承载力的变化趋势最后均呈现一致性，但大小不均匀。
FRP불동우강근재료특성， FRP토정여관장재료적점결력분포여발전규률등작용궤리일직시연구적난제화급수해결적문제。통과재FRP토정중매설광섬광책전감기，병장FRP토정용우실제변파지호，재시공완성후진행현장랍발력측시시험，측정단기랍발력작용하FRP토정적수력특성，분석표명：FRP토정승담료지호작용；수력초기정체근단선승력；수착랍발력증대，정체각점수력증장솔불일치，근단초기증장교쾌，도일정랍발력후，정체각점랍발력증장솔추우상수；정체각위치승재력적변화추세최후균정현일치성，단대소불균균。
Different from reinforcement material properties, adhesion distribution and development law between FRP ( fiber reinforced plastics) soil nailing and the grout have been urgent research problems. FBG sensors were embedded in FRP soil nailing and used for the actual slope support. After completion of the construction, field pull-out force tests were done to measure force characteristics of FRP soil nailing. The analysis shows that FRP soil nailing assumed the supporting function. At the beginning, the proximal soil nailing withstand pull-out force. With the pull-out force increasing, the force growth is inconsistent in different points of soil nailing, proximal soil nailing has more rapid growth early, after a certain pulling force, points tested of soil nailing tend to a constant growth in pull-out force. The force on soil nailing at different position tend to consistency in the end, but bearing capacity is uneven.