新疆盐渍土的危害与治理 毕业论文

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1、河南交通职业技术学院毕业论文论文题目：新疆盐渍土的危害与治理姓名：班级：道桥10305学号：01号专业：道路桥梁工程技术系部：道桥工程系指导老师：二零一三年六月十五日16前言自去年离校后，我于我于新疆G3015克塔高速公路KT-3标实习。在这实习的一年中我学会了很多，虽然离家较远，但在社会上的闯荡让我学到了更多。虽然其中有迷茫，有泪水，有辛酸···经历了这些，我更懂得了那些鲜艳美丽背后的艰辛，跟为我以后的生活工作带来了一股持久的精神财富。不经历风雨怎能见彩虹，脚踏实地、勤恳认真、多学善思等需要我不断地付诸于行动成为我前行中的力量源泉。下

2、面我为大家介绍下我在实习期间接触的东西。大家也许很少知道盐渍土这个问题，因为我们这里接触的少，但在新疆这片土地上，就不得不考虑盐渍土这一问题，它会给工程带来意想不到的问题。我有幸接触这一方面，对其有些浅薄的理解，向大家介绍下关于盐渍土的常见问题和治理措施。关于这些观点还望各位老师不吝赐教，指正不足。16目录一、摘要·············································5二、关键词···········································5三、引言··············

3、·······························6四、盐渍土的定义及病害原因···························7五、盐渍土的分类·····································7六、盐渍土类别判定···································7七、盐渍土对路基路面的危害···························816八、硫酸盐渍土的工程性质····························81、压实性质·················

4、·····················82、盐胀与膨胀性质································83、抗剪强度······································9九、盐渍土危害的解决措施·····························9十、硫酸盐渍土路基的处理·····························111、设置隔断层····································11（1）土工布或薄膜隔断层····················

5、·····1116（2）风积沙或河沙隔断层（垫层）··················11（3）碎（砾）石隔断层···························112、提高路基高度··································123、降低地下水位··································124、去除盐分·····································12（1）换填法·································12（2）化学处治·····

6、··························125、加强路面·····································1216十一、结语·········································13十二、参考文献······································1316一、摘要新疆气候干燥，自然条件特殊，盐渍土分布广且盐化程度含盐性质差异大。盐渍土不但不利于植物的生长发育，严重的甚至引起植物死亡，而且它特殊的工程性质，导致路基路面地质灾害屡屡发生。为了避免和减少盐

7、渍土对路基路面的影响，一是需要从源头上控制原材料质量，做好预防工作；二是在路基路面施工技术上下功夫，做好隔离层、填料、路堤碾压和排水等一系列工作。介绍了硫酸盐渍土的工程性质及其盐胀处理措施，降低或消除硫酸盐渍土对公路造成的危害。二、关键词关键词：硫酸盐渍土；盐胀；工程性质；路基处理；路基路面；危害；解决措施16三、引言新疆是中国的荒漠化大区，也是中国最大的盐土区。有关文献记载:新疆盐渍土面积约占全国盐渍土总面积的1/3和新疆土地面积的6.6%，现有耕地1/3次生盐渍化，成为农业低产的主要因素之一。由于新疆地处内陆封闭环境，丰富的盐物质在

8、土壤内循环，其残余积盐和现代积盐过程都十分强烈，并通过土壤灌溉，导致次生盐渍化的迅速发展。盐渍土对公路造成的危害严重,经济损失巨大,因此在公路建设中应加强对这方面的防治研究,实施合理的措施、减少危害的程度。