摘要
本文给出了针剌无纺土工织物在压力状态下的渗透性和孔径分布的试验成果,以及针刺无纺土工织物孔径随压力变化的曲;指出了低压力区孔径、渗透性随压力变化梯度大的共同规律;阐明低压区针刺无纺土工织物渗透变化大的机理;对水工建筑物中用织物排渗的透水性要求提出了建议.
Experimented results of non-woven geotextiles permeability and prous size distribution under different pressure are presented . The porous size distribution under pressure is measured. The relationship betweem the non-woven geotextie porou size distribution and pressure is obtained . Experiments show that the greater variation of permeability and porous size distribution have taken place in the low pressure zone . The mechanizm of variation of non-woven geotextiles permeability is explained . The authors propose a code of the seepage control in the hydrostructure using the non-woven geotextile as a drainage measure.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1990年第2期42-47,共6页
Journal of Hohai University(Natural Sciences)
关键词
无纺
土工织物
空隙
压力
孔径
non-woven geotextile
porous size
pressure
pressure measure
permeability
