基坑降水引起的相鄰建筑物直接經(jīng)濟(jì)損失預(yù)測研究english-資料下載頁
2025-08-23 09:30本頁面
【正文】 1 G 11 R 12 D 12 Sw 12 S12 G 12 R 13 D 13 Sw 13 S13 G 13 R 14 D 14 Sw 14 S14 G 14 R 15 D 15 Sw 15 S15 G 15 48 R i ( m ) D i ( m ) Snw i ( m ) Si （ mm ） Gi （‰） R 16 D 16 Sw 16 S16 G 16 R 17 D 17 Sw 17 S17 G 17 R 18 D 18 Sw 18 S18 G 18 R 19 D 19 Sw 19 S19 G 19 R 20 D 20 Sw 20 S20 G 20 R 21 D 21 Sw 21 S21 G 21 R 22 D 22 Sw 22 S22 G 22 R 23 D 23 Sw 23 S23 G 23 49 50 51 52 Discussion Take it for granted, the buildings loss will increase with the increasing of water table falling. However, the analysis results show that although the general tendency of loss increase with water table falling, at some certain spot , the curve turns to the reverse direction. More detail analysis shows that the building loss is in proportion to the ground settlement gradient, rather than settlement itself, and G is affected by the soil distribution and water table of a certain area. 6 Conclusions l g l g ( )l g l gnwwS R r DS R r????53 1 The Dupuit39。s equation is verified to be adequate to determine the water table after pumping in construction pit 2 For the convenience of engineers, the algorithm stipulated in Chinese National Code (soil pression accumulation) may be used to determine the ground settlement. For the northeast part of Zhengzhou, the modification factor ? ?3 The formula for building direst loss vs. ground settlement gradient is set up as 10010 . 0 3 1 80 . 9 6 9 2 3 0 . 4 8 6 2 xye ???? 54 4 The adjacent building loss is proportion to the ground settlement gradient, rather than settlement itself, and G is affected by the soil distribution and water table falling as a certain area. Thanks for your attention
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