山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2012年
8期
49-50
,共2页
吹填土%外荷载%电压%耦合作用%含水率%沉降
吹填土%外荷載%電壓%耦閤作用%含水率%沉降
취전토%외하재%전압%우합작용%함수솔%침강
dredger filling%external load%voltage%coupling effect%water content%settlement
通过联合使用电渗固结与预压排水技术进行电渗试验,分析怎样改善吹填土的排水固结效果。对于不同含水量的吹填土试样,同时施加12.5 kPa～400 kPa的外荷载和2.5 V,5.0 V,7.5 V的外电压,研究外荷载和电压的耦合作用下吹填土含水量的变化规律。通过试验研究表明：仅有外荷载作用下,吹填土含水率变化缓慢,当在耦合作用下,吹填土含水率变化明显,能够大大提高吹填土的排水速度,提高抗剪强度;在耦合作用下,有利于加快吹填土后期沉降速率。
通過聯閤使用電滲固結與預壓排水技術進行電滲試驗,分析怎樣改善吹填土的排水固結效果。對于不同含水量的吹填土試樣,同時施加12.5 kPa～400 kPa的外荷載和2.5 V,5.0 V,7.5 V的外電壓,研究外荷載和電壓的耦閤作用下吹填土含水量的變化規律。通過試驗研究錶明：僅有外荷載作用下,吹填土含水率變化緩慢,噹在耦閤作用下,吹填土含水率變化明顯,能夠大大提高吹填土的排水速度,提高抗剪彊度;在耦閤作用下,有利于加快吹填土後期沉降速率。
통과연합사용전삼고결여예압배수기술진행전삼시험,분석즘양개선취전토적배수고결효과。대우불동함수량적취전토시양,동시시가12.5 kPa～400 kPa적외하재화2.5 V,5.0 V,7.5 V적외전압,연구외하재화전압적우합작용하취전토함수량적변화규률。통과시험연구표명：부유외하재작용하,취전토함수솔변화완만,당재우합작용하,취전토함수솔변화명현,능구대대제고취전토적배수속도,제고항전강도;재우합작용하,유리우가쾌취전토후기침강속솔。
The paper undertakes the electro-osmosis experiment by using the electro-osmotic consolidation and the preloading drainage,analyzes how to improve the drainage and consolidation effect of the dredger filling,imposes 12.5 kPa ～ 400 kPa external load and the external voltage with 2.5 V,5.0 V,and 7.5 V on the samples of the electro-osmosis with different water content,researches the change laws for the water content of the dredger filling under the coupling effect of the external load and voltage,proves by the experimental results that the water content change slowly only under the effect of the external load,the water content change of the dredger filling obviously under the coupling effect,so the drainage speed of the dredger filling and the anti-shearing strength can be improved and the settlement speed at the later period of the dredger filling can also be accelerated.
