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FINITE ELEMENT ANALYSIS OF SAFETY MEASURES FOR AFFECTED
SOFT GROUND AREA BY VACUUM PRELOADING |
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Abstract Some safety measure effects in affected soft ground area by vacuum preloading have been analyzed by plane strain finite element method(PSFEM) with different parameters，such as depth of trenches，modules of piles，coefficient of permeability piles，and length of piles. The results show that excavated trench can effectively reduce both horizontal and vertical deformations. The increase of modulus ratio of pile versus soil has little effect on settlement in affected area if the ratio is greater than 100. The permeability coefficient of pile has certain effect on settlement in affected area. The value of settlement decreases when the permeability coefficient of pile becomes smaller. The settlement value in affected area decreases with the increase of piles length. It shows that longer pile with smaller permeability coefficient can reduce ground settlement in affected area. Thus，it can provide safer protection for the neighboring constructions.
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Received: 12 November 2004
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HUANG Man1, 2, WANG Yuhao1, 2, TAO Zhigang3, HONG Chenjie1, 2*, WENG Hanqian3, ZHANG Guangtao1, 2, ZHANG Haijiang1, 2. Size effect on anchorage resistance of Quasi-NPR bolt[J]. , 2026, 45(5): 1477-1488. |
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