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INFLUENCE OF WATER CONTENT ON PULLOUT BEHAVIOR OF GEOGRID IN RED CLAY |
| FENG Xiaojing1，2，YANG Qing1，2，LI Shoulong1，2，LUAN Maotian1，2 |
(1. State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian，Liaoning 116024，China；
2. Institute of Geotechnical Engineering，Dalian University of Technology，Dalian，Liaoning 116024，China)
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Abstract The pullout behavior of geogrid in red clay is studied. An experimental investigation is conducted using geogrid in eight groups of red clays with different water contents. The results indicate that the geogrid embedded in red clay mainly represents pullout failure，and the ultimate pullout force is sensitive to water content. It decreases with the increase of the water content firstly. Then it tends to be constant around the plastic limit. Moreover，the ultimate pullout force is independent of the normal load in this zone. The distribution character of geogrid strains proves that the decrease of the ultimate pullout force is due to the reduction of the friction resistance between soil and geogrid. Besides，the water content influences the process of the pullout behavior. The increase of water content leads to the ultimate pullout force soon after the geogrid strain increases linearly.
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Received: 07 August 2008
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PAN Shenxin1, 2, JIANG Guanlu1, 2, LIU Xianfeng1, 2, HUANG Xin1, 2, YUAN Shengyang1, 2,CAO Lijun1, 2, FENG Haizhou1, 2, ZHOU Shiguang3. Mechanical behavior of geogrid in reinforced soil retaining wall with rigid facing under seismic action[J]. , 2025, 44(8): 2216-2231. |
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