水利水电科技进展
水利水電科技進展
수이수전과기진전
Advances in Science and Technology of Water Resources
2015年
6期
82-85
,共4页
陈四利%张精禹%宁宝宽%杨雨林%魏星%吴依涵
陳四利%張精禹%寧寶寬%楊雨林%魏星%吳依涵
진사리%장정우%저보관%양우림%위성%오의함
水泥土%硫酸钠溶液%抗剪强度%剪切试验%腐蚀效应
水泥土%硫痠鈉溶液%抗剪彊度%剪切試驗%腐蝕效應
수니토%류산납용액%항전강도%전절시험%부식효응
cemented soil%sodium sulfate solution%shear strength%shear test%erosion effect
为研究硫酸钠溶液对水泥土抗剪强度的影响，对硫酸钠溶液腐蚀后的水泥土进行了无固结排水直剪试验。试验结果表明：水泥土的抗剪强度随着硫酸钠溶液浓度的增加而逐步降低，相应的内摩擦角和黏聚力也逐步降低；硫酸钠溶液浓度不变时，水泥土抗剪强度随着硫酸钠溶液腐蚀时间的增加而逐步降低，黏聚力也逐步降低，腐蚀对黏聚力影响较大，而对内摩擦角影响很小。
為研究硫痠鈉溶液對水泥土抗剪彊度的影響，對硫痠鈉溶液腐蝕後的水泥土進行瞭無固結排水直剪試驗。試驗結果錶明：水泥土的抗剪彊度隨著硫痠鈉溶液濃度的增加而逐步降低，相應的內摩抆角和黏聚力也逐步降低；硫痠鈉溶液濃度不變時，水泥土抗剪彊度隨著硫痠鈉溶液腐蝕時間的增加而逐步降低，黏聚力也逐步降低，腐蝕對黏聚力影響較大，而對內摩抆角影響很小。
위연구류산납용액대수니토항전강도적영향，대류산납용액부식후적수니토진행료무고결배수직전시험。시험결과표명：수니토적항전강도수착류산납용액농도적증가이축보강저，상응적내마찰각화점취력야축보강저；류산납용액농도불변시，수니토항전강도수착류산납용액부식시간적증가이축보강저，점취력야축보강저，부식대점취력영향교대，이대내마찰각영향흔소。
In order to study the effect of sodium sulfate solution on the shear strength of cemented soil, direct shear with unconsolidated-undrained test was carried out on sodium sulfate corrosion of cemented soil. The test results show that the shear strength of cemented soil gradually decreases with the increase of sodium sulfate solution concentration, and angle of internal friction and cohesion of the shear strength index gradually decrease. When the concentration of sodium sulfate solution is constant, the shear strength of cemented soil gradually decreases with the increase of sodium sulfate solution corrosion time, and cohesion of the shear strength index gradually decreases. The corrosion has a great impact on cohesion, while it has little effect on angle of internal friction.
