Quicks and Problem and Reinforcement Measures of Jinghong to Menghai Expressway
Section ZK38+220—K38+370 of Jinghong-Menghai Expressway is affected by Crocodile Valley scenic spot during construction,and the land acquisition scope is limited.According to the terrain and the conventional cross-sectional design method,the pile slab wall treat-ment method is adopted to solve the problem.However,when the anti-slide pile was dug manually,there was a more serious quicksand phe-nomenon,and it could not continue to dig down the hole,resulting in a shutdown.Through geological prospecting and stability calculation and analysis,the slope slope is steeped,reinforced with reinforced soil embankment,and platforms are set between slopes to reduce the embank-ment height and narrow the land requisition range.By setting the anti-slip retaining wall at the foot of the third grade side slope and using ce-ment mixing pile for deep treatment of the weak soil layer at the foot of the slope,the land acquisition and quicksand problems of the high fill embankment project are well solved,which provides a certain reference value for the subsequent related projects.
High fill embankmentQuicksandAnti-skid retaining wallCement mixing pile
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