山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2009年
22期
3-5
,共3页
网纹红土%剪切%抗剪强度%应力
網紋紅土%剪切%抗剪彊度%應力
망문홍토%전절%항전강도%응력
reticulated laterite%shear%shear strength%stress
为研究洞庭湖地区网纹红土的力学特性,对其进行了直接剪切试验和三轴剪切试验,试验表明,网纹红土的抗剪强度随垂直荷载的增大而增大,存在使其发挥最大抗剪能力的最适宜剪切速率,它随垂直荷载的增大而减慢,围压越大,土体被剪坏的主应力差也越大.
為研究洞庭湖地區網紋紅土的力學特性,對其進行瞭直接剪切試驗和三軸剪切試驗,試驗錶明,網紋紅土的抗剪彊度隨垂直荷載的增大而增大,存在使其髮揮最大抗剪能力的最適宜剪切速率,它隨垂直荷載的增大而減慢,圍壓越大,土體被剪壞的主應力差也越大.
위연구동정호지구망문홍토적역학특성,대기진행료직접전절시험화삼축전절시험,시험표명,망문홍토적항전강도수수직하재적증대이증대,존재사기발휘최대항전능력적최괄의전절속솔,타수수직하재적증대이감만,위압월대,토체피전배적주응력차야월대.
In order to study the mechanical characteristics of reticulated laterite in Dongting lake zone, the directed shear test and triaxial shear test were carried. The test indicated that the shear strength of reticulated hterite increased with vertical load enlargement. The most proper shear speed to display maximum shear property was existed, which reduced with vertical load enlargement, the confining pressure larger, the primary stress difference of soil sheared was larger.
