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- W2354993535 abstract "Aiming at the deformation and failure of slope rock mass and supporting structure under extreme ice-snow conditions in south China,an indoor model test of rock-shotcrete layer structure is put forward to conclude the deformation laws under freezing-thawing cycles.Sandstone-concrete integration sample is placed in the self-developed high-low temperature environmental test chamber.Static strain testing system and fiber bragg grating(FBG) testing method are used to synchronously monitor the strain of sample.Deformations and deformation reasons of sandstone,concrete,sandstone-concrete cementation face under freezing-thawing cycles are analyzed.The strain data on rock surface show that principal strain increases when the temperature dropped below 0 ℃ and decreases with the increasing temperature.The strain data on concrete surface show that principal strain increases with the increasing temperature and decreases with the decreasing temperature.The two monitoring methods both show that the strain data on cementation plane are the combined action of rock and concrete.Based on the coincident data,the fitting relationship formula of maximum strain and freezing-thawing cycles are formulated.The mechanisms of freezing-thawing damage of sandstone,concrete and cementation plane between rock and concrete are concluded." @default.
- W2354993535 created "2016-06-24" @default.
- W2354993535 creator A5044634861 @default.
- W2354993535 date "2011-01-01" @default.
- W2354993535 modified "2023-09-23" @default.
- W2354993535 title "MODEL TEST STUDY OF ROCK-SHOTCRETE LAYER STRUCTURE UNDER FREEZING-THAWING CYCLES" @default.
- W2354993535 hasPublicationYear "2011" @default.
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