真空-堆载联合预压法,vacuum combined surcharge preloading
1)vacuum combined surcharge preloading真空-堆载联合预压法
1.According to the deformation character of expressway foundations, a 3-D Biot consolidation FEM model of soft foundation improved byvacuum combined surcharge preloading method, is proposed.根据高速公路路基的变形特点,提出了真空-堆载联合预压法处理软基的三维Biot固结有限元计算模型,将砂井按照实际尺寸划分单元,避免了平面计算方法中的砂井处理的问题,较以往的平面数值方法更接近实际情况。
英文短句/例句
PARISON OF THE CALCULATION METHOD FOR SETTLEMENT OF HIGHWAY BED AFTER TREATMENT BY VACUUM PRELOADING WITH SURCHARGE PRELOADING真空-堆载联合预压法加固公路路基沉降计算方法的比较
2.Algorithm Study on Soft Subgrade Reinforced by Vacuum and Surcharge Preloading Method真空-联合堆载预压法软基处理算法研究
3.Study on Improvement Mechanism and Computation Theory of Vacuum Combined Surcharge Preloading;真空—堆载联合预压法加固机理与计算理论研究
4.The Study of Settlement Calculation and Consolidation Characteristic for Vacuum Combined with Surcharge Preloading;真空联合堆载预压法沉降计算与固结特性研究
5.Study in Consolidation and Seepage of Vacuum Combined Surcharge Preloading;真空堆载联合预压法的固结与渗流研究
6.Study on Reinforcement Mechanism and Stability Method of Vacuum Combined Surcharge Preloading;真空联合堆载预压法加固机理及其稳定性研究
7.The Engineering Application and Mechanism of Vacuum-Piled-load Preloading Method;真空联合堆载预压法加固机理及工程应用
8.An Application of Vacuum-moumd Preloading to The Treatment of Soft Foundation真空联合堆载预压法在软基处理中的应用
9.Field Experiment of Vacuum-Surcharge Preloading Method to Improve Soft Subgrade真空堆载联合预压法加固软基的现场试验
10.The application of the method combined vacuum and surcharge preloading in municipal engineering真空联合堆载预压法在市政工程建设中的应用
11.Settlement Analysis of Soft Soil Foundation Applied with Vacuum-surcharge Preloading Method软土地基采用真空堆载联合预压法时沉降分析
12.Study on Soft Foundation Treatment Method of Vacuum and Load-Bearing Combined Compression;真空—堆载联合预压软基处理技术研究
13.Study on the Performance of Soft Soil Groung Improved By Vacuum-Heaped Load Combining Preloading Technique;真空-堆载联合预压处理软基性状研究
14.Mechanism and theoretical research on vacuum and vacuum-load consolidation of soft ground真空及真空联合堆载预压法加固软基的机理与理论研究
15.The Combined Treatment of Coastal Rinsefill Foundation with the Vacuum Preloading + Dynamic Compaction Replacement真空联合堆载预压+强夯置换法组合处理沿海冲填土地基
16.Sensitivity Analysis of Parameters in Shoal Consolidation for Surcharge Incorporating Vacuum Preloading Method;真空—堆载联合预压法加速滩涂固结的参数敏感性分析
17.Experimental Study on Highway Soft Subgrade Reinforced by Vacuum and Surcharge Preloading Method;真空堆载联合预压法在公路软基处理中的应用研究
18.Study on Experiment of Vacuum-combined Surcharge Preloading and Analysis about Influence to Pile;真空堆载联合预压法试验研究及其对桥桩影响分析
相关短句/例句
vacuum-surcharge preloading method真空堆载联合预压法
1.Taking the soft foundation improvement in Rizhao Harbour,the mechanism and the construction technology of thevacuum-surcharge preloading method are discussed,the technical requirements in the process of construction are proposed as well,it can provide reference for similan engineering projeets.结合日照港集装箱码头软基处理工程实例,介绍了真空堆载联合预压法的加固机理以及施工工艺,并提出了施工过程中各个环节的技术要求,以供类似工程参考借鉴。
2.Based on the characteristics of subgrade deformation of expressways, a 3-D Biot consolidation finite element model was presented for the soft foundation of expressways improved with thevacuum-surcharge preloading method.根据高速公路路基的变形特点,提出了真空堆载联合预压法处理高速公路软基的三维Biot固结有限元计算模型,将砂井按照实际尺寸划分单元,避免了平面计算方法中砂井处理的问题,较以往的平面数值方法更接近实际情况。
3)vacuum-stack united p ressure method真空一堆载联合预压法
4)the method combined vacuum and surcharge preloading真空联合堆载预压法
1.The application ofthe method combined vacuum and surcharge preloading in municipal engineering真空联合堆载预压法在市政工程建设中的应用
5)vacuum-surcharge preloading真空-堆载联合预压
1.The application ofvacuum-surcharge preloading in foundation treatment for electric power plant;真空-堆载联合预压法在电厂地基处理中的应用实例
2.To prove its efficiency,a test on situ also conduced withvacuum-surcharge preloading saturated soil treatment.真空-堆载联合预压处理深厚饱和软土地基时分层沉降测试现场实践表明,该监测技术精度较高而且较为稳定,具有较好的应用前景。
3.Based on the field experiment and research work carried out in the Ri Zhao dock in Shan Dong province,the mechanism of improvement of soft subgrade with thevacuum-surcharge preloading method is discussed.结合山东日照港集装箱码头辅建区的软基处理工程,开展了现场真空-堆载联合预压试验和监测资料分析研究,并对其加固机理和加固效果进行了探讨。
6)combined vacuum and surcharge preloading真空联合堆载预压
1.Boundary effect of the methodcombined vacuum and surcharge preloading and influencing factors thereof;真空联合堆载预压法的边界效应及其影响因素
2.Assessment of effect of ground improvement for hydraulic structure usingcombined vacuum and surcharge preloading;真空联合堆载预压法加固水工建筑物软基效果检验
延伸阅读
预压法对软土地基预先加压，使大部分沉降在预压过程中完成，相应地提高了地基强度。预压法适用于淤泥质粘土、淤泥与人工冲填土等软弱地基。预压的方法有堆载预压和真空预压两种。堆载预压 在地基上堆放重物(水、土、砂、石等)进行预压。当堆载超过计划建造的建筑物荷载时，称为超载预压。为了防止堆载时压坏地基，需分级加载，即：在前一级荷载作用下地基基本固结后，再施加下一级荷载，直至达到设计荷载为止。预压所需时间的长短取决于地基土层的渗透特性、厚度和预压荷载的大小等因素。这些因素可以根据地基固结理论进行计算预计。施工时应监测地面沉降和土中孔隙水压力的消散情况，对预压加以控制。为了加速厚层软土的固结，缩短预压时间，应设法改善厚层软土的排水条件。最常用的排水的方法是在地基中按一定间距作孔,孔内填砂以形成砂井（图1）。然后在地面加铺砂垫层加以沟通。近年来，土工织物日益发展，已开始采用纤维编织的袋装砂井和在排水纸板上发展起来的塑料板排水。堆载预压早在50年代就广泛地应用于铁路、公路路堤、码头和岸坡的地基处理；还应用于土坝、水闸、房屋、冷藏库和油罐等工程的软基处理。如中国的苏北大浦和汉江杜家台两个大型水闸工程，经过预压后，大大减少了闸室和岸墩的沉降量；又如上海地区采用3万米3油罐充水预压改良地基，取得了显著效果。真空预压 以大气压作为预压荷载（图2），对地基土进行抽气,在土中造成一定的真空度,形成大气压力与真空压力的差值作用，将土中一部分水抽出，从而使地基土固结而加固。如果设置排水砂井，还可将孔隙内的水加速排出。此法首先由瑞典皇家地质学院于1952年提出。到80年代，中国也进行了室内外试验，并且已经开始在工程中应用。
