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                  您現在的位置:首頁 >新聞動態 >> 淤泥的主要特性
                  [來源:www.oyoloo.com] [作者:淤泥固化] [日期:19-09-03]

                  淤泥的主要特性是:天然含水率高于液限,孔隙比多大于1.0;干密度小,只有0.8~0.9克/立方厘米;壓縮性特別高,壓力自9.8×10帕增加到19.6×10帕時,壓縮系數為a1-2>0.05,壓力自9.8×10帕增加到29.4×10帕時壓縮系數a1-3>0.1;強度極低,常處于流動狀態,視為軟弱地基。淤泥按孔隙比可再細分為淤泥(孔隙比大于 1.5)和淤泥質土(孔隙比為1~1.5)。
                  The main characteristics of sludge are as follows: natural water content is higher than liquid limit, pore ratio is more than 1.0; dry density is small, only 0.8-0.9 g/cubic centimeter; compressibility is especially high, when pressure increases from 9.8 x 10 Pa to 19.6 x 10 pa, compressibility coefficient is A1-2 > 0.05, compression coefficient a1-3 > 0.1 when pressure increases from 9.8 x 10 Pa to 29.4 x 10 pa; strength is very low, often in Flow state is regarded as weak foundation. Silt can be subdivided into silt (pore ratio greater than 1.5) and muddy soil (pore ratio 1-1.5).
                  淤泥的自然結構變化十分敏感,結構及其強度受力破壞后能自動復原,這就是所謂的觸變性。淤泥不宜作天然地基,因為它會產生不均勻沉降,使建筑物產生裂縫、傾斜、影響正常使用。在淤泥上進行建筑時必須采取人工加固措施。如壓密、夯實,用垂直砂井排水,加速淤泥固結。有時可采用柱基,或在建筑物上部采用適應于不均勻沉降的剛性圈梁,沉降縫等結構措施,以保證建筑物的穩定安全。
                  The natural structure change of silt is very sensitive, and the structure and its strength can be automatically restored after being destroyed, which is called thixotropy. Silt should not be used as natural foundation, because it will produce uneven settlement, which will cause cracks, inclination and affect the normal use of buildings. Artificial reinforcement measures must be taken when building on silt. If compacted and compacted, drainage by vertical sand wells will accelerate sludge consolidation. Sometimes, column foundation, rigid ring girder and settlement joints can be used to ensure the stability and safety of buildings.

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