东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (10): 1502-1506.DOI: 10.12068/j.issn.1005-3026.2014.10.030

• 资源与土木工程 • 上一篇    下一篇

天津滨海新区地基土工程地质分区的可拓学评价

宋盛渊1，王清1，孙涛2，鲍硕超1   

  1. (1吉林大学 建设工程学院，吉林 长春130026； 2天津滨海建设投资集团，天津300191)
  • 收稿日期:2014-04-23 修回日期:2014-04-23 出版日期:2014-10-15 发布日期:2014-05-19
  • 通讯作者: 宋盛渊
  • 作者简介:宋盛渊(1987-)，男，山西汾阳人，吉林大学博士研究生；王清(1959-)，女，江苏连云港人，吉林大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(40372122，41172236)；国家自然科学基金国际合作项目(40911120044)；吉林大学基本科研业务费专项资金资助项目(450060491448).

Extenics Evaluation of Engineering Geological Zoning of Foundation Soil in Tianjin Binhai New Area

SONG Shengyuan1， WANG Qing1， SUN Tao2， BAO Shuochao1   

  1. 1. College of Construction Engineering， Jilin University， Changchun 130026， China； 2. Tianjin Binhai Construction Investment Group， Tianjin 300191， China.
  • Received:2014-04-23 Revised:2014-04-23 Online:2014-10-15 Published:2014-05-19
  • Contact: WANG Qing
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摘要： 采用可拓学理论，建立了以软土层埋深、厚度、孔隙比、液性指数、压缩模量为评价指标的土体沉降的预测和评价模型，并以定量的形式表示评定结果.该方法的最大优点就是所选取评价指标的数量和种类不受限制，既可适用于不同工程地质条件的地基土，又可最大限度地合理利用工程地质勘察成果.将该方法应用于天津滨海新区地基土的沉降评价，评价结果与现场观测的结果吻合，且影响研究区土体沉降的主要因素为压缩模量、软土层厚度.最后，根据沉降等级对研究区进行工程地质分区，得到了科学合理的分区结果.

关键词: 地基沉降, 工程地质分区, 可拓学, 层次分析法, 软土

Abstract: Based on the extenics， a prediction and evaluation model for soil settlement was established when the soft clay depth，thickness， void ratio， liquidity index and modulus of compression are regarded as evaluating indexes. The advantages of this model is that the evaluation results were expressed by the quantitative data and there is no limit for the number and variety of evaluation factors. Hence， this model can not only be applied to the soil of different engineering geological conditions， but also maximize the utilization of engineering geological exploration. The new method was applied to the sedimentation evaluation regarding foundation soil in Tianjin Binhai New Area. The extenics evaluation results are consistent with the insitu measurements. Furthermore， soft soil thickness and compression modulus are the main factors influencing the sedimentation of study area. Finally， the obtained engineering geological zoning is scientific and reasonable according to the settlement level.

Key words: foundation settlement, engineering geological zoning, extenics, analytic hierarchy process, soft soil

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