强夯法处理软土路基施工工艺研究

软土路基施工过程中存在多种潜在危险,软弱土体力学性质各向异性显著,软土路基中软弱土层分布复杂,对路基施工及使用期间稳定性产生不利影响。通过对强夯法施工原理分析,研究强夯法的优缺点及适用性,并由具体的强夯法施工工程对强夯法施工工艺进行研究,对施工场地沉降规律、静荷载、孔隙水压力等监测指标数据,评价强夯法对软土路基处理的效果。强夯法能够提高路基承载力,增强土体抗液化的能力,能提升路基土层的均匀度,避免出现不均匀沉降。     

强夯法在加固饱和粉土地基工程中的应用

通过某工程实例,说明强夯法在加固饱和粉土地基中的设计和施工方法。通过现场原位测试及土工试验分析,对强夯法的地基处理效果进行了检验,对强夯法施工应注意的几个问题进行了讨论。     

强夯法施工技术在市政道路软土路基处理中的应用探索

软土路基处理采用强夯法施工,方便且节省成本,及对市政道路软土路基的加固处理。本文具体分析了强夯法施工技术内涵,并例证探索了它在市政道路软土路基处理中的实际应用。     

强夯法施工工艺研究

强夯法是一种既简便又快捷的施工方法，而且没有环境污染，所以在世界各国的地基处理过程中都非常流行。主要研究强夯法施工工艺和在施工过程中应注意的问题。     

强夯处理黄土湿陷性的机理分析

目前,强夯法以其造价低且施工简单的特点,在黄土湿陷性处理应用中得到了较大发展.本文从强夯对黄土湿陷性影响出发,分析了强夯消除黄土湿陷性的机理,为此法的设计应用提供借鉴.     

强夯地基处理施工工艺与施工参数控制

强夯法处理地基能最大限度地利用原土挤密作用增加地基土强度,充分利用土体资源,不用或少用水泥,钢材等高能耗建筑材料,可节省大量能源,所以采用强夯法处理软基及复杂地基是当前常用的方法.但由于强夯法施工工艺本身具有一定的复杂性,且施工质量受现场土质及环境影响较大,所以其适用范围具有一定的局限性.为提高施工质量,从强夯加固地基机理出发,重点讨论了施工工艺及施工参数的控制,为今后施工操作提供科学依据,并为设计人员提供借鉴.     

浅谈强夯法处理湿陷性黄土路基简

在公路的修建和改建过程中,经常会遇到湿陷性黄土路基。黄土的湿陷性对公路工程会造成严重的危害。必须进行加固处理。该文介绍了强夯法处理路基的原理和适用范围。结合工程实例给出了强夯法处理湿陷性黄土路基的设计参数、施工工艺流程及施工的要点和施工质量控制要素等。     

浅谈强夯法处理湿陷性黄土路基

在公路的修建和改建过程中,经常会遇到湿陷性黄土路基。黄土的湿陷性对公路工程会造成严重的危害,必须进行加固处理。该文介绍了强夯法处理路基的原理和适用范围,结合工程实例给出了强夯法处理湿陷性黄土路基的设计参数、施工工艺流程及施工的要点和施工质量控制要素等。     

某三期圆煤场区域地基加固强夯施工技术

强夯施工法由于工期短、效果好、造价低,被广泛运用到公路、铁路、机场、大工业区、港口填海等地基加固工程。以某三期圆煤场区域地基加固为例,结合实际施工情况,详细分析了海陆交互相沉积地貌单元的地质情况,采取分区强夯施工工艺展开叙述,为滩涂地质强夯施工提供参考。     

强夯法在桥头地基处理中的应用

强夯法加固地基是一种常见的处治桥头跳车病害方式,简析了桥头跳车的特点和危害,探讨了强夯法的作用、施工工序和质量控制要求.     

建筑施工中流水组织与三大控制有机结合的实践与分析

在建筑施工中,如何组织工程施工是生产管理的核心工作。在绿洲家园东区1#～3#楼工程施工中,我们通过流水施工与三大控制的有机结合,提高了工程质量、缩短了工期的同时极大地降低了工程成本。因此工程实践中探求流水组织与三大控制之间的关系具有重要意义。     

Tunnel Engineering Construction Schedule Analysis and Management Based on Visual Simulation

The methodology of visual simulation for a tunnel engineering construction schedule is presented. Visualization of simulation model, calculation and result of construction schedule simulation is realized, and the construction simulation and the resource optimization of tunnel engineering are made. A risk analysis and a decision-making method of tunnel engineering construction schedule based on visual simulation are presented. Furthermore, using S curve theory and schedule management method, the real-time management and control method of tunnel engineering construction based on visual simulation is presented. The application to the tunnel engineering construction schedule analysis and management shows the feasibility and effectiveness of the method presented in this paper.     

Global Comprehensive Sensitivity Analysis of Arch Dam Construction Parameters Based on Orthogonal Experiment

The construction of arch dams exhibits high uncertainty. Sensitivity analysis of construction parameters is important for the design and optimization of dam construction duration. However, current research cannot fully consider the combined influences of multiple parameters on the total construction. To effectively analyze the duration of arch dam construction, this study proposes a global comprehensive sensitivity analysis method in view of the whole process of arch dam construction based on an orthogonal experiment. This method could comprehensively consider the influence of the construction parameters that may lead to the uncertainty of construction duration. In addition, this method is able to identify the key parameters that may have a significant effect on duration uncertainty and sums up the general rules of combined parameters' interaction effect, which provides a scientific basis for reasonable optimization of the duration of dam construction.     

Construction simulation approach of roller-compacted concrete dam based on real-time monitoring

The parameters of existing roller-compacted concrete (RCC) dam construction simulation are usually fixed based on experience while the actual construction conditions of an RCC dam change during the process of the project. The simulation accuracy of an RCC dam is therefore reduced because the change has not been considered. A new method for RCC dam construction simulations based on real-time monitoring is presented in this paper. First, real-time monitoring technology is used to collect and analyze the actual construction information. Second, meteorological data obtained from the real-time monitoring system are analyzed using the fuzzy average function method, and the weather conditions of the next stage are forecasted. Then the construction schedule simulation model is updated via the Bayesian update method. Results of the analysis are used as the input to the construction simulation parameters, and the construction simulation is performed. A real-world engineering example is presented to compare the simulation results with the actual construction schedule. The results demonstrate that the method can effectively improve the accuracy and real-time performance of construction simulations.     

Construction scheme comparison with comprehensive evaluation of independent perspectives

Considering both the characteristics of construction scheme evaluation and the lack of consideration of index proportionality after introducing comprehensive evaluation of independent perspectives into construction scheme evaluation, a construction scheme evaluation model of independent perspectives was put forward through the study and optimization of comprehensive evaluation of independent perspectives. The feasibility and rationality of the optimized method were illustrated through a case study and the evaluation results were compared between the optimized method and non-optimized method. The ootimized method has the nractical value in construction scheme comparison.     

"构造法"在图论中的应用——关于存在性的证明

构造是一种重要而灵活的思维,利用构造法与反证法、构造法与数学归纳法的联合运用,解决图论中的一类存在性问题。     

深基坑“逆作法”施工技术应用现状研究

逆作法施工是一种先浇筑地下室顶板结构体系,再利用其抗侧刚度作为横向支撑,同时对地下结构和主体结构施工的深基坑工艺做法.逆作法适用于对环境要求高的复杂大型深基坑工程.新型逆作法工艺结合了传统逆作法和地下连续墙的"两墙合一"工艺,地下结构施工经济合理,能有效保护周边的环境.随着新工艺的完善和发展,逆作法将为城市地下空间开发发挥重要作用.     

基于SWOT分析法下的学习型社区建设

SWOT分析法是一种重要的态势分析方法,在组织建设、产业发展战略制定方面发挥了重要的指导作用;学习型社区建设是全面落实学习型社会建设目标的重要组成部分。本文根据SWOT分析法,对我国学习型社区建设的优势、劣势、机遇以及威胁进行了分析,并且对促进学习型社区建设提出了相应的建议。     

超前管棚在隧道工程中的应用研究

超前管棚支护是隧道施工中穿越软弱破碎围岩的一种有效的预支护方法。介绍超前管棚的受力原理与模型、设计与施工要点及适用范围等，并结合工程实例，论证超前管棚技术在隧道施工中的应用价值．     

基于AHP和模糊综合评价的建设项目可持续发展能力评估

针对建设项目可持续发展方面现存的各种问题,本文提出了影响建设项目可持续发展能力的种种因素,运用层次分析法设计了建设项目可持续发展能力的评价指标体系,并确定了权系数,在此基础上,应用模糊数学方法建立了建设项目可持续发展能力的模糊综合评价系统,从而在一定程度上解决了如何运用数学方法分析和处理建设项目可持续发展能力评价中大量存在的模糊问题,是一种定性分析和定量分析相结合的可持续发展能力评估方法。最后举例说明应用这一方法的具体步骤。