格栅加筋挡墙长期工作特性的现场试验研究

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Abstract In order to discuss the long-term performance of reinforced earth retaining walls in high grade highway of mountainous area，the field test is conducted on the stepped geogrid reinforced soil retaining wall. It is found that the foundation vertical pressure of reinforced earth retaining wall is nonlinear along the reinforcement length at early stage；but as time progresses，the pressure eventually becomes a straight line stress distribution and the value gradually reduces. The testing lateral pressure of the panel is nonlinear along the height，and the value is less than the active lateral earth pressure，which is associated with the lateral displacement of the wall and reduces with the change in time. The tensile strain is similar to Assmann energy method in the middle of the wall，but it is far from the Assmann energy method at the top and bottom. The distribution of tensile strain along reinforcement is trapezoidal type with small value at both ends and large value at the middle，and the value of the tensile strain gradually reduces. The potential fracture plane is similar to 0.3H method in the upper；but at the lower wall，the potential fracture face moves to the reinforced retaining body and the change in displacement with time is little. The position of the maximum lateral displacement of each step is at the middle，and the maximum lateral displacement of the wall is at the lower wall.

Key words： soil mechanics field test reinforced retaining wall geogrid creep

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	WANG Chengzhi1
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	LUAN Maotian1
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Cite this article:

WANG Chengzhi1,2,3, et al. STUDY OF LONG-TERM PERFORMANCE OF REINFORCED EARTH RETAINING WALLS BY FIELD TEST[J]. , 2010, 29(S2): 3960-3966.

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https://rockmech.whrsm.ac.cn/EN/Y2010/V29/IS2/3960

[1] 杨果林. 加筋土筋材长期荷载蠕变试验研究[J]. 煤炭学报，2001，26(2)：132–136.(YANG Guolin. Study on creep test of geosynthetics[J]. Journal of China Coal Society，2001，26(2)：132–136.(in Chinese))

[2] 王钊. 土工合成材料的蠕变试验[J]. 岩土工程学报，1994，16(6)：96–102.(WANG Zhao. The creep tests of geosynthetics[J]. Chinese Journal of Geotechnical Engineering，1994，16(6)：96–102.(in Chinese))

[3] FINNIGAN J A. The creep behaviour of high tenacity yarns and fabrics used in civil engineering application[C]// Proceedings of the International Conference on the Use of Fabrics in Geotechnics. Paris：[s.n.]，1977：305–309.

[4] DAS M. Creep behavior of geotextiles[C]// Proceedings of the 4th International Conference on Geotextiles. Netherlands：The Hague，1990：667–674.

[5] 栾茂田，肖成志，杨庆，等. 考虑蠕变性土工格栅加筋挡土墙应力与变形有限元分析[J]. 岩土力学，2006，27(6)：857–863.(LUAN Maotian，XIAO Chengzhi，YANG Qing，et al. FEM based numerical analysis of stresses and deformations of geogrid-reinforced earth retaining wall[J]. Rock and Soil Mechanics，2006，27(6)：857–863.(in Chinese))

[6] 李丽华，王钊，陈轮. 考虑筋材蠕变特性的加筋土流变模型[J]. 岩土力学，2007，28(8)：1 687–1 690.(LI Lihua，WANG Zhao，CHEN Lun. Rheological model considering creep of geosynthetics for reinforced soil[J]. Rock and Soil Mechanics，2007，28(8)：1 687– 1 690.(in Chinese))

[7] 杨广庆，吕鹏，庞巍，等. 返包式土工格栅加筋土高挡墙现场试验研究[J]. 岩土力学，2008，29(2)：517–522.(YANG Guangqing，LU Peng，PANG Wei，et al. Research on geogrid reinforced soil retaining wall with wrapped face by in-situ tests[J]. Rock and Soil Mechanics，2008，29(2)：517–522.(in Chinese))

[8] 王祥，徐林荣. 双级土工格栅加筋土挡墙的测试分析[J]. 岩土工程学报，2003，25(2)：220–224.(WANG Xiang，XU Linrong. Test and analysis of two-step retaining wall reinforced by geogrid[J]. Chinese Journal of Geotechnical Engineering，2003，25(2)：220–224.(in Chinese))

[9] 陈群，何昌荣. 一种新型拉筋加筋土挡墙的原型观测[J]. 岩土工程学报，2000，22(3)：289–293.(CHEN Qun，HE Changrong. The prototype measurement of retaining wall reinforced by a new type of wedge tied reinforcement[J]. Chinese Journal of Geotechnical Engineering，2000，22(3)：289–293.(in Chinese))

[10] 杨广庆，蔡英，苏谦. 高路堤加筋土挡土墙的变形和受力研究[J]. 岩石力学与工程学报，2003，22(2)：321–326.(YANG Guangqing，CAI Ying，SU Qian. Testing study on deformation and stress of reinforced earth retaining wall for high embankment[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(2)：321–326.(in Chinese))

[11] 何延全，何昌荣，余建华. 单级超高复合加筋土挡墙的原型观测[J]. 四川建筑科学研究，2003，29(2)：74–78.(HE Tingquan，HE Changrong，YU Jianhua. The prototype measurement of single-step compound reinforced retaining wall with super height[J]. Building Science Research of Sichuan，2003，29(2)：74–78.(in Chinese))

[12] 何昌荣，陈群，富海鹰. 两种支挡结构的实测和计算土压力[J]. 岩土工程学报，2001，22(1)：55–60.(HE Changrong，CHEN Qun，FU Haiying. Measurement and computation of earth pressure on two retaining structures[J]. Chinese Journal of Geotechnical Engineering，2001，22(1)：55–60.(in Chinese))

[13] 但礼堂，史宏彦，张建龙. 某河道护岸工程加筋土挡土墙的原型观测[J]. 建筑技术开发，2004，31(12)：39–41.(DAN Litang，SHI Hongyan，ZHANG Jianlong. Prototype measurement of reinforced retaining wall built on the verge of a river[J]. Building Technique Development，2004，31(12)：39–41.(in Chinese))

[14] 中华人民共和国行业标准编写组. JTJ015–91 公路加筋土工程设计规范[S]. 北京：人民交通出版社，1993.(The Professional Standards Compilation Group of People¢s Republic of China. JTJ015–91 The design directive rules of reinforced soil in road[S]. Beijing：China Communications Press，1993.(in Chinese))

[15] 陈群，何昌荣. 两种加筋土挡墙拉筋的力学特性[J]. 四川联合大学学报(工程科学版)，1999，3(4)：91–102.(CHEN Qun，HE Changrong. The mechanical property of two type of tied reinforced retaining wall[J]. Journal of Sichuan University，1999，3(4)：97–102.(in Chinese))