A METHOD OF DESIGNING HARDENING AGENT FOR SOFT SOIL ACCORDING TO CHARACTERISTICS OF THE SOIL SAMPLES
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摘要: 根据固化土结构的形成模型,提出了加固软土的固化剂应分别产生胶结土颗(团)粒的胶结性水化物和填充孔隙的膨胀性水化物,进而,建立了根据土样的性质指标确定固化剂组分与掺入比的计算公式。试验证明:对不同的典型土样,利用该公式计算得到的固化剂各组分的掺入比与试验得到的结果比较接近,且按本设计方法配制出的固化剂加固效果优于水泥加固的效果。Abstract: According to the structure formation model of stabilized soil, it is proposed that the hardening agent for stabilizing soft soil should generate cementitious hydrates to bind soil particles and expanding hydrates to fill pores in the stabilized soil; calculation formulas are developed, by which dosage of components constituting hardening agent can becalculated according to characteristics of the soil. The experiment results proved that the dosages of optimal hardening agent components obtained from the experiment were close to those calculated with the formulas, and the effect of the stabilized soil stabilized by the hardening agent designed by this method were much higher than that stabilized by cement.
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叶书麟,叶观宝.地基处理.北京:中国建筑工业出版社,1997 [2] 《地基处理手册》编写委员会.地基处理手册.第二版.北京:中国建筑工业出版社,2000 [3] Reuben H Karol.Chemical Grouting and Soil Stabilization.Third Edition.New Jersey,USA:Rutgers University,Marcel Dekker,Inc.,2003:120-129 [4] Moseley M P,Kirsch K.Ground Improvement.2 nd Edition.New York,USA:Taylor Francis Group,2004:119-175 [5] 汤怡新,刘汉龙,朱伟,等.水泥固化土工程特性试验研究.岩土工程学报,2000,22(5):549-554 [6] 资建民,聂桂平.增强型湿塑性水泥土加固软土地基研究.岩石力学与工程学报,2003,22(5):858-862 [7] 简文彬,黄春香,吴维青,等.水泥土的疲劳试验研究.岩石力学与工程学报,2004,23(11):1 949-1 953 [8] 周红波,李恒,王天龙,等.高钙粉煤灰加固促淤地基机理和性状试验研究.岩土力学,2004,25(5):783-788 [9] 黄新,周国钧.水泥加固土硬化机理初探.岩土工程学报,1994,16(1):62-68 [10] Saitoh S,Suzuki Y,Nishioka S,et al.Required Strength of Cement Improved Ground//Yonekura R,et al.eds.Grouting and Deep Mixing Proc.Conference.Tokyo,Japan,Balkema,1996,557-562 [11] 梁伟平.粉喷桩固化剂新型材料试验研究及以沉降控制的优化设计方法:[博士学位论文].上海:同济大学,1997 [12] Kamon M,Nontananandh S Katsumi.Effective Utilization of Stainless Steel Slag for Soil Stabilization//Proc.24th.Japan Nat.Cong.on Soil Mech.and Foundation Engineering.Japan,1989,6:1 947-1 948 [13] Srivastava R K.Swelling and Consolidation Behaviour of Industrial Waste Stabilized Expansive Soil//Eleventh Asian Regional Coherence on Soil Mechanics and Geotechnical Engineering.1999:473-476 [14] 任光月,迟宗立.利用高钙粉煤灰做软黏土固化剂.沈阳建筑工程学院学报,1995,11(4):354-357 [15] 刘顺妮,林宗寿,陈云波.高含水量黏土固化剂的研究.岩土工程学报,1998,20(4):72-75 [16] 黄新,宁建国,许晟,等.固化土结构的形成模型.工业建筑,2006,36(7):1-6 [17] Larrsrd F De,Sedran T.Optimazation of Ultra-High-Performance Concrete by the Use of a Packing Model.Cement and Concrete Research,1994,24(6):997-1009 [18] Kokkila A.Interaction of Aggregates and Cement Paste in High-Strength Concrete//RILEM 43rd General Council Meeting.1989:9-26 [19] Larrard F De,Belloc A.The Influence of Aggregate on the Compressive Strength of Normal and High-Strength Concrete.1997,94(5):417-426 [20] James K Mitchell.Fundamentals of Soil Behavior.New York,London Sydney,Toronto,U.S.A:John Wiley Sons,Inc.,1976:135-136 [21] Diamond S,Kinter E B.Mechanisms of Soil-Lime Stabilization.Highw.Res.Rec.,1966,92:83-102 [22] 黄新,宁建国.固化土孔隙液Ca(OH)2饱和度对强度的影响.工业建筑,2006,36(7):19-24
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