亚热带水土保持
亞熱帶水土保持
아열대수토보지
Subtropical Soil and Water Conservation
2015年
3期
17-20
,共4页
纤维丝补强植生土%抗剪切强度%内摩擦角%粘聚力%边坡生态防护
纖維絲補彊植生土%抗剪切彊度%內摩抆角%粘聚力%邊坡生態防護
섬유사보강식생토%항전절강도%내마찰각%점취력%변파생태방호
continuous fiber reinforced soil%shearing strength%internal friction angle%cohesion%side slope ecologi-cal protection
边坡生态防护中，连续纤维丝能够对人工植生基材起到加筋补强作用，提高基材抗剪强度、抗侵蚀能力。通过应力控制式直接剪切仪进行快剪试验，研究了不同纤维丝含量对植生基材抗剪强度的影响。结果显示，纤维丝可明显增强植生基材抗剪切强度，但并非纤维丝含量越大，基材抗剪强度就越大。当纤维丝量在2.0 kg／m3左右时植生基材获得最大抗剪强度，同时植生基材的粘聚力c和内摩擦角φ获得最大值。
邊坡生態防護中，連續纖維絲能夠對人工植生基材起到加觔補彊作用，提高基材抗剪彊度、抗侵蝕能力。通過應力控製式直接剪切儀進行快剪試驗，研究瞭不同纖維絲含量對植生基材抗剪彊度的影響。結果顯示，纖維絲可明顯增彊植生基材抗剪切彊度，但併非纖維絲含量越大，基材抗剪彊度就越大。噹纖維絲量在2.0 kg／m3左右時植生基材穫得最大抗剪彊度，同時植生基材的粘聚力c和內摩抆角φ穫得最大值。
변파생태방호중，련속섬유사능구대인공식생기재기도가근보강작용，제고기재항전강도、항침식능력。통과응력공제식직접전절의진행쾌전시험，연구료불동섬유사함량대식생기재항전강도적영향。결과현시，섬유사가명현증강식생기재항전절강도，단병비섬유사함량월대，기재항전강도취월대。당섬유사량재2.0 kg／m3좌우시식생기재획득최대항전강도，동시식생기재적점취력c화내마찰각φ획득최대치。
During the side slope ecological protection, the continuous fibers can play a role of reinforcement for soil to improve the soil shearing strength and resistance capacity to erosion.It was studied the impact of different textile fibers contents on the soil shearing strength through the quick shearing experiment by using the stress-control type direct shear apparatus.The results showed that fibers can obviously increase the soil shearing strength.However, it doesn't means that, the more content of fibers, the larger shearing strength of the soil will be.When the content of the fibers was at about 2 .0 kg/m3 , the soil shearing strength reached the top value with the maximum value of the soil cohesion c and internal friction angle φ.
