CAJ | 학술논문

返包式土工格栅被广泛应用于路堤的加固。本文以某高速公路路堤断面为背景，利用Plaxis有限元软件建立二维分析模型，并结合现场实测数据分析了返包式加筋路堤水平土压力、垂直土压力和格栅拉伸应变等在施工期间的变化规律。发现路基填土在采用土工格栅加强后，有效的调整了不同层位处土体的水平土压力和垂直土压力，施工期间格栅的拉伸应变也一直在合理的范围以内。
반포식토공격책피엄범응용우로제적가고。본문이모고속공로로제단면위배경，이용Plaxis유한원연건건립이유분석모형，병결합현장실측수거분석료반포식가근로제수평토압력、수직토압력화격책랍신응변등재시공기간적변화규률。발현로기전토재채용토공격책가강후，유효적조정료불동층위처토체적수평토압력화수직토압력，시공기간격책적랍신응변야일직재합리적범위이내。
Geogrids reinforced soil embankment without concrete panel is widely used in the reinforcement of embankment .Based on the section of an expressway , a two-dimensional analysis model was established with the finite element software Plaxis .The transformation law of the horizontal earth pressure , the vertical earth pres-sure and the tensile strain of geogrids during the period of construction were analyzed with the measured data in field test .After reinforcing by the geogrids , the horizontal earth and vertical earth pressures of the embankment were adjusted effectively .And the tensile strain of geogrids is in a reasonable range during construction .