堆载预压,surcharge preloading
1)surcharge preloading堆载预压
1.Experimental study on effect of treatment of soft foundationwith vacuum-surcharge preloading;真空堆载预压处理软基效果的室内试验研究
2.Research on plastic drainage platesurcharge preloading in treatment of highway"s soft foundation塑料排水板堆载预压处理高速公路软基的研究
3.Considering the special engineering geology condition of soft soil foundation in Qingdao seashore expressway,vacuum preloading、surcharge preloading、vacuum combinedsurcharge preloading and dynamic compacted stone pier are adopted to strengthening soft soil foundation.针对青岛滨海公路施工现场特殊的工程地质条件,分别采用真空预压、堆载预压、真空联合堆载预压、强夯片石墩等软基加固法加固软土地基。
英文短句/例句
1.Micro-structural effect evaluation of the consolidation for soft ground by vacuum preloading and surcharge preloading真空预压与堆载预压加固软基的微观效果评价
2.Preload-bearing Compression Technology Research upon Shanghai International Formula One Circuit;上海F1国际赛车场堆载预压技术研究
3.Vacuum-Surchargepreloading: Experiment and Theory;真空联合堆载预压加固软基试验及理论研究
4.Mechanism and Technology of Vacuum Combined with Surcharge Preloading;真空联合堆载预压加固软基机理及工艺研究
5.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
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.Vacuum Preloading Treatment on Soft Ground of Zhong-Jiang Expressway中江高速公路软基真空联合堆载预压工程实践
9.Nonliner Finite Element Analysis on the Consolidation of Saturated Soft Soil Foundation with Surcharge Preloading饱和软土堆载预压处理的非线性有限元分析
10.Brief description of piled-load preloading consolidation design of saturated soft clay foundation饱和软黏土地基堆载预压固结设计实例简述
11.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
12.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
13.Several Calculation Methods of Consolidation Degree During Soft Soil Treatment by Preloading Method堆载预压法处理软土时计算固结度的几种方法
14.Visco-elastic-plasticity Finite Elements Analysis of Surcharge Preloading on Soft Foudation Embankment软基路堤堆载预压的粘弹塑性有限元分析
15.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
16.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
17.Test Study of Vacuum and Heap Loading Combined Pre-compaction Soft Ground Treatment Construction Technologies真空-堆载联合预压软基处理技术试验研究
18.Study of Combined Vacuum-Surcharge Preloading Mechanism for Ground Treatment;真空堆载联合预压软土地基加固机理研究
相关短句/例句
preloading堆载预压
1.Analysis of consolidation effects of Zhoushan National Oil Reserve Base improved bypreloading combined with plastic drains;舟山国家石油储备基地堆载预压加固效果分析
2.Calculation methods of foundation stability in process ofpreloading;堆载预压过程中的地基稳定性计算方法
3.The whole course in thepreloading treatment of a soft clay foundation was introduced.介绍了某软土地基在堆载预压处理中进行全程工程监测,通过对堆载预压区超孔隙水压力的消散度、沉降速率、水平位移速率、分层沉降速率、地下水位等的监测,适时地指导了堆载预压区施工的时机、施工方案和施工段落的选择,避免了盲目施工,确保施工安全和工程质量。
3)preloading method堆载预压
1.Application of Biot s consolidation theory to improving soft ground bypreloading method;比奥固结理论在堆载预压加固工程场地中运用
2.Application ofpreloading method to soft foundation treatment is discussed.介绍了堆载预压法在某港口工程深厚软基处理中的应用,工程采用了梯形法堆载,从设计方面优化了堆载形式及方法,并进行了施工监测,制定堆载速率的控制指标,可由监测数据科学合理、信息化地指导施工。
3.On the base of certain project usingpreloading method to settle its soft foundation in Shanghai, the stability of different loading methods is analyzed in this paper.结合上海某工程堆载预压方案对不同堆载方法稳定性进行了分析。
4)pre-loading堆载预压
1.The application of vacuumization pluspre-loading to the treatment of soft ground on Hangzhou-Ningbo expressway;真空联合堆载预压在杭宁高速公路软基处理中的应用
5)surcharge preloading堆载预压法
1.According to the practical soft foundation treatment project of Hexi Development Zone in Nanjing,reinforcement mechanisms ofsurcharge preloading and vacuum preloading are analyzed.结合南京市河西开发区中软土地基处理的实际工程,分析了堆载预压法和真空预压法的加固机制,比较了二者在施工工艺和加固效果上的异同,为合理的选择不同的软基处理方式提供了科学的依据。
6)preloading堆载预压法
1.This paper discusses the principle of weak ground treatment withpreloading, and explains that the reason of treating weak ground with the method ofpreloading is that it can reduce the settlement, which arises with the construction.讨论了堆载预压法处理软基的根本原理,说明了堆载法处理软基的根本原因是能减少建(构)筑物修建后引起的沉降。
2.As a simple and effective method of soft ground treatments,the sand drainpreloading method has been widely used in construction projects.砂井堆载预压法作为一种简单有效的软土地基处理方法已经在工程中得到广泛的应用。
3.In the process of reinforcing soft soil foundation bypreloading,preloading rate will impact on excess pore pressure dissipation.堆载预压法加固软土地基过程中,堆填速率将影响到超孔隙水压力的消散。
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。
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