| 摘要: |
| 目前我国结构抗浮水位方面研究成果虽然很丰富，但分歧很大，不仅直接影响了实际工程中的应用，同时也造成了研究工作自身缺乏系统性和延续性。为解决这一问题，利用水文学、水力学和土力学等科学理论，分别从抗浮水位基本概念、抗浮水位分析中两个基本问题（孔隙水压力和远期最高水位）的方法论和抗浮水位分析的技术体系等3个角度对既有研究成果进行了系统综述与客观分析。在抗浮水位基本概念方面，根据地下水赋存和渗流理论，将目前研究成果划分为二维、准三维和三维等3种类型，提出了各自的数学表达式，分析了三者之间逻辑关系，讨论了各自的科学性和适用性。在孔隙水压力分析方法方面，尤其是孔隙水压力折减问题，对基于渗流理论和有效应力原理的经典分析方法进行系统评述的同时，还对当前讨论热烈的基于结合水理论的分析方法进行了梳理评价。在地下水远期最高水位预测方面，着重讨论了历史最高水位法、基于宏观数据反演法和数值分析法等3种方法的优缺点及需要完善之处。在抗浮水位分析技术体系方面，以北京地区为例对该类问题作了简要总结与评述。最后，对抗浮水位研究与应用现状进行了概要性评述，并结合我国国情，对未来工作提出了展望与建议。 |
| 关键词: 结构 抗浮水位 地下水 孔隙水压力 远期最高水位 |
| DOI： |
| 分类号:TU46+2 |
| 基金项目:国家自然科学基金资助项目(41572276，41272337)； 北京市科技计划资助项目（Z161100001216011） |
|
| Research status and progress of groundwater level against floating of structures in China |
|
WANG Junhui1,2, TAO Lianjin1, HAN Xuan2, ZHOU Honglei2
|
|
1.College of Architecture and Civil Engineering, Beijing University of Technology, Beijing;2.BGI Engineering Consultants Ltd., Beijing
|
| Abstract: |
| Although a lot of research results on groundwater level against floating（GWLAF）have been achieved in China, there are many disagreements among them, which not only affect their practical applications to engineering， but also lead to the lack of systematicness and continuity in research itself. In order to solve this complicated and urgent problem, the basic concepts of the GWLAF， a methodology on two basic problems （pore water pressure and the highest forward groundwater level） and the technique systems of GWLAF are reviewed systematically and analyzed objectively， on the basis of hydrology, hydraulics, soil mechanics and other scientific theories and methods. In the aspect of the basic concepts of the GWLAF， according to the theory of occurrence of groundwater and seepage, they are classified into three types， i.e. a two dimensional concept， a quasi-three dimensional concept and a three dimensional concept， which are then formulated respectively， and analysis of the logical relationships between the three types of concepts has been done， based upon which the scientificalness and applicability of them are discussed in this study. Regarding the method on the analysis of the pore water pressure distribution， especially on the analysis of reduction of the pore water pressure, the classical seepage methods based on seepage law and effective stress theory are commented first， and at the same time, the current methods in heat discussion based on the bound water theory are also generalized， the applicability of the two methods on the pore water pressure above are analyzed respectively， and some suggestions are made. In the aspect of the prediction of the highest forward groundwater level in the future， three major methods （ie. the method of historical highest groundwater level， a method of inversion based on the macro data and a numerical method）are discussed， whose advantages， problems and something to be improved are discussed. In the aspect of the technique systems of the GWLAF, it is discussed briefly， taking Beijing as an example. Finally, commenting the researches on the GWLAF in China， and considering China’s national conditions, the progress and suggestions for the future research are made. |
| Key words: structure groundwater level against floating groundwater pore water pressure the highest forward groundwater level |
