充气位置及压力对边坡截排水效果的影响

doi:10.13278/j.cnki.jjuese.201602203

摘要/Abstract

摘要：

充气截排水主要依据非饱和渗流理论,通过向坡体后缘压入气体驱除部分地下水,形成非饱和帷幕带,降低土体的渗透性,截排斜坡后缘地下水的入渗,降低潜在滑坡体内地下水位。多孔介质的多相渗流问题相当复杂,模拟技术往往是有效的研究方法。笔者以试验得到的地下水位及渗流量为基础进行数值反演分析,得到土质参数,构建数值计算模型,研究不同充气位置对边坡潜在滑坡区地下水位的影响。结果表明:在坡体后缘压入气体能够降低潜在滑坡区的地下水位线;在坡体后缘充气时,充气点放置在距离潜在滑坡区较近的位置时,截排水效果更好;充气点充气压力越大,潜在滑坡区的地下水位线下降得越多;选择充气点深度时,宜选择较深的充气深度,这样能够选择较大的充气压力。

关键词: 滑坡, 地下水, 充气截排水, 模型试验, 数值模拟

Abstract:

The method of intercepting water with compressed air for a landslide is mainly based on the unsaturated seepage theory, through filling the trailing edge of slope with compressed air to expel some groundwater, to form the unsaturated curtain belt, to intercept the groundwater seepage from the trailing edge of slope, and then to lower the groundwater level in a potential landslide. The multiphase seepage is quite complex, so the simulation technology is often the effective research method. Based on the groundwater level and the seepage quantity in the landslide model test, it's easy to get the soil parameter through numerical inversion analysis. To study the effects of groundwater level in potential landslide caused by different inflatable positions through constructing the numerical model, the authors get the conclusions as follows:the groundwater level of potential landslide area can be lowered by filling and inflating the trailing edge of slope with compressed air; a better inflatable position should be closed to the potential landslide area. The greater the pressure of the inflatable point is, the more the groundwater level of the potential landslide area drops. When choosing the depth of the inflatable point, we should select a deeper one, so that a larger air pressure can be used.

Key words: landslide, groundwater, the method of intercepting groundwater with compressed air, model test, numerical simulation

中图分类号:

P642.22

钱文见, 尚岳全, 杜丽丽, 朱森俊. 充气位置及压力对边坡截排水效果的影响[J]. 吉林大学学报(地球科学版), 2016, 46(2): 536-542.

Qian Wenjian, Shang Yuequan, Du Lili, Zhu Senjun. Influences of Inflatable Location and Pressure on Draining of Slopes[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(2): 536-542.

参考文献

[1] 钟荫乾. 滑坡与降雨关系及其预报[J]. 中国地质灾害与防治学报, 1998,9(4):82-87. Zhong Yinqian.Landslide Related to Rainfall and Its Forecasting[J]. The Chinese Journal of Geological Hazard and Control,1998,9(4):82-87.

[2] 孙永帅, 贾苍琴, 王贵和. 降雨对边坡稳定性影响研究综述[J]. 施工技术, 2012,41(17):63-66. Sun Yongshuai,Jia Cangqin,Wang Guihe.Overview of Research on Stability of Slope During Rainfall[J]. Construction Technology,2012,41(17):63-66.

[3] 沈珠江. 非饱和土简化固结理论及其应用[J]. 水利水运工程学报, 2003(4):1-6. Shen Zhujiang. Simplified Consolidation Theory for Unsaturated Soils and Its Application[J]. Hydro-Science and Engineering,2003(4):1-6.

[4] 弗雷德隆德, 拉哈尔佐. 非饱和土力学[M]. 陈仲颐译. 北京:中国建筑工业出版社, 1997:126-130. Fredlund D G,Rahardjo H.Soil Mechanics for Unsaturated Soils[M]. Translated by Chen Zhongyi. Beijing:China Architecture and Building Press,1997:126-130.

[5] 薛定谔A E. 多孔介质中的渗流物理[M]. 王鸿勋, 张朝琛, 译. 北京:石油工业出版社, 1982:284-332. Schrödiager A E.Physics of Flow Through Porous Media[M]. Translated by Wang Hongxun,Zhang Chaochen. Beijing:Petroleum Industry Press,1982:284-332.

[6] 许迪, Mermoud A. 从土壤持水数据估算导水率方法的比较分析[J]. 水土保持学报, 2001,15(增刊1):125-129. Xu Di,Mermoud A. Comparison of Models for Predicting Hydraulic Conductivity Functions from Soil Retention Data[J]. Journal of Soil and Water Conservation, 2001,15(Sup.1):125-129.

[7] 叶为民, 钱丽鑫, 白云, 等. 由土-水特征曲线预测上海非饱和软土渗透系数[J]. 岩土工程学报, 2005,27(11):27-30. Ye Weimin,Qian Lixin,Bai Yun,et al.Predicting Coefficient of Permeability from Soil-Water Characteristic Curve for Shanghai Soft Soil[J].Chinese Journal of Geotechnical Engineering,2005,27(11):27-30.

[8] 王丽娟. 含水层储气库建库机理的数值模拟研究[D]. 北京:中国石油勘探开发研究院, 2005. Wang Lijuan. The Numerical Simulation of the Mechanism for Underground Gas Storage Building[D]. Beijing:Research Institute of Petroleum Exploration and Development, 2005.

[9] 展长虹, 焦文玲, 廉乐明, 等. 利用含水层建造地下储气库[J]. 天然气工业, 2001,21(4):88-91. Zhan Changhong,Jiao Wenling,Lian Leming,et al. The Construction of Underground Gas Storage in Aquifers[J]. Natural Gas Industry,2001,21(4):88-91.

[10] 张英. 地下水曝气(AS)处理有机物的研究[D]. 天津:天津大学, 2004. Zhang Ying.Study on Organic Chemicals Removal Using Air Sparging[D].Tianjin:Tianjin University,2004.

[11] 郭如美, 刘汉湖. 垃圾填埋场渗滤液对地下水污染的修复技术[J]. 资源开发与市场, 2006,22(5):432-435. Guo Rumei,Liu Hanhu.Groundwater Pollution for Landfill Leach-Ate and the Control Strategy[J]. Resource Development and Market, 2006,22(5):432-435.

[12] 刘辉, 李仲奎, 廖宜, 等. 压气新奥法隧道施工中的渗流分析[J]. 岩石力学与工程学报, 2006,25(3):584-589. Liu Hui,Li Zhongkui,Liao Yi,et al. Seepage Analysis in New Austria Tunneling Compressed Air in Urban Underground Engineering[J]. Chinese Journal of Rock Mechanics and Engineering, 2006,25(3):584-589.

[13] 李仲奎, 高翔, 杜若超. 压气新奥法隧洞施工技术及其在城市地下工程中的应用[J]. 岩石力学与工程学报, 1995,14(1):75-84. Li Zhongkui,Gao Xiang,Du Ruochao. Application of the Natm Under Compressed Air in Urban Underground Engineering, 1995,14(1):75-84.

[14] 杜丽丽, 孙红月, 尚岳全, 等. 充气截排水滑坡治理数值模拟研究[J]. 岩石力学与工程学报, 2014(增刊1):2628-2634. Du Lili,Sun Hongyue,Shang Yuequan,et al. Simulation of Numerical Control of Pneumatic Cut-off Method for Landslide[J]. Chinese Journal of Rock Mechanics and Engeering,2014(Sup.1):2628-2634.

[15] 杜丽丽, 孙红月, 尚岳全. 松散堆积土边坡充气排水方法[J]. 吉林大学学报(地球科学版), 2013,43(3):877-882. Du Lili,Sun Hongyue,Shang Yuequan. Air-Filled Drainage Method in Loose Accumulation Soil Slope[J]. Journal of Jilin University(Earth Science Edition),2013,43(3):877-882.

[16] 王初生. 气体在饱和黏性土中渗透行为的模拟试验及其工程应用[D]. 上海:同济大学, 2006. Wang Chusheng. The Research on the Permeating Behavior of Gas Flow in Saturated Clay and Its Applying[D].Shang Hai:Tongji University,2006.

[17] 张丙印, 朱京义, 王昆泰. 非饱和土水气两相渗流有限元数值模型[J]. 岩土工程学报, 2002,24(6):701-705. Zhang Bingyin,Zhu Jingyi,Wang Kuntai.Finite Element Modeling of Two-Phase Seepage in Unsaturated Soil[J]. Chinese Journal of Geotechnical Engeering,2002,24(6):701-705.

[18] Van Genuchten M T. A Closed-Form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils[J]. Soil Science Society of America Journal, 1980,44(5):892-898.

[19] Bear J. 多孔介质流体动力学[M].李竟生,陈崇希,译.北京:中国建筑工业出版社,1983:522-568. Bear J.Dynamics of Fluids in Porous Media[M].Translated by Li Jingsheng,Chen Chongxi. Beijing:China Architecture and Building Press,1983:522-568.

相关文章 15

[1]	夏英杰, 陈华斌, 陈健, 姚明宇, 杨海. 不同施工参数下深层页岩水力压裂数值模拟[J]. 吉林大学学报(地球科学版), 2026, 56(3): 924-936.
[2]	周孙超, 宋腾蛟, 王琰, 蔡宗佑. 基于小龙虾优化算法的BP神经网络模型在滑坡易发性评价中的应用[J]. 吉林大学学报(地球科学版), 2026, 56(3): 937-950.
[3]	涂君汕, 陈辉, 邓居智, 陈康, 李焱, 余辉. 水库堤坝对高密度电法的影响及校正技术[J]. 吉林大学学报(地球科学版), 2026, 56(3): 1013-1025.
[4]	张文, 王骏城, 陈俊淇, 崔洪海, 孔祥礼, 郭涛, 王明, 王佳, 张书睿, 孙琦, 张涵, . 长白山山脉基本地质概况与火成岩崩滑灾变类型及机制[J]. 吉林大学学报(地球科学版), 2026, 56(2): 568-583.
[5]	杜新强, 尹呈杉, 方永军, 李孜涵, 郭辉. 基于地下水生态水位埋深阈值的可开采量评价——以三江平原普阳灌区为例[J]. 吉林大学学报(地球科学版), 2026, 56(2): 635-646.
[6]	束龙仓, 位书静, 澈丽木格, 温中琦, 刘波. 西辽河平原生态输水的地下水响应及不确定性量化[J]. 吉林大学学报(地球科学版), 2026, 56(2): 647-660.
[7]	杨婷, 李亚鑫, 刘娜, 林晓君, 曾经文, 王秀娟, 蔡倩怡, 罗子峰, 张苑铃, 容精男, 余伟达, 丘锦荣, 周建利. 沸石作为PRB填充介质修复NH4+污染地下水的效果及原位再生性能[J]. 吉林大学学报(地球科学版), 2026, 56(2): 661-672.
[8]	秦传玉, 尤凯鸿, 李小奇, 张成武, 于丽娟. 地下水常见阴离子影响双重改性纳米零价铁降解硝基苯的机制及效果[J]. 吉林大学学报(地球科学版), 2026, 56(1): 342-351.
[9]	黄兴国, 翁央央, 韩丽. 基于广义递归卷积的孔隙黏弹地震波正演模拟[J]. 吉林大学学报(地球科学版), 2026, 56(1): 377-385.
[10]	杨忠平, 赵凯, 高宇豪, 向宫固, 刘新荣. 基于模型试验的欠固结深厚土石混合回填区隧道施工力学响应[J]. 吉林大学学报(地球科学版), 2025, 55(6): 1945-1957.
[11]	张文静, 涂志鹏, 贾媛媛. 矿区重金属的释放迁移与污染预测研究进展[J]. 吉林大学学报(地球科学版), 2025, 55(6): 2001-2027.
[12]	周柳湘, 余思琴, 陈俊华, 刘城, 陈义, 张鑫鑫, . 潜孔锤与冲击钻机联合钻进工艺成孔碎岩过程数值模拟[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1608-1618.
[13]	闫纲丽, 冯屾, 刘睿男, 黄冠星. 地下水背景值评估研究进展[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1655-1670.
[14]	王双, 朱奋, 李亮, 李林坚, 刘娜. 湛江市硇洲岛浅层地下水水化学特征及成因机制[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1680-1690.
[15]	黄树春, 李洪涛, 邓波, 王丹, 张高华. 湖南湘潭河西地区近20年岩溶水化学时空演变及其影响因素 [J]. 吉林大学学报(地球科学版), 2025, 55(4): 1269-1287.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed