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建立了充填粉土泥浆重度成线性增加情况下土工织物充填袋袋体的力学特性方程,并给出它的数值分析方法。利用该方法研究了大尺度土工织物充填袋的受力特性,并通过实际工程验证了该方法的正确性。计算结果表明:充填压应力相同时,大尺度充填袋袋体的周向拉力远大于小尺度袋体。因此,为保证袋体的强度要求,大尺度土工织物充填袋的充填压应力应控制在比较小的范围。在此小充填压应力下,计算得到的大尺度土工充填袋的水平向尺寸远大于竖向尺寸,为扁平状态,与管状的小尺度土工织物充填袋的形状明显不同。
The equation of mechanical properties of geotextile bagged bags with linear increase of filling silt mud is established, and its numerical analysis method is given. The force characteristics of large-scale geotextile bags were studied by this method. The correctness of the method was verified by practical engineering. The calculation results show that the circumferential tensile force of the large-scale bagged bag body is much larger than that of the small-sized bag body when the compressive stress is the same. Therefore, in order to ensure the strength of the bag body, large-scale geotextile bags fill pressure should be controlled in a relatively small range. Under the small filling compressive stress, the calculated horizontal size of large-scale geotextile bags is much larger than the vertical dimension and is flat, which is obviously different from that of the tubular small-scale geotextile bags.