钢管桩基础托换技术在工程中的应用

发布时间：2019-06-19 00:43

【摘要】：近年来,我国经济的迅速发展对投资企业的热度不断增长,生产性企业规模不断扩大,对现有的建筑物的使用功能要求也越来越高,导致既有建筑物的加固改造形式也逐渐显现出来。因此,对既有建筑物的进行检测、鉴定、加固和改造越来越受到人们重视,已成为土木工程领域中的一门新兴学科,并逐渐成为建筑行业的一个重要分支。托换改造技术主要是一种对地基基础的加固改造的一种有效手段,是目前结构工程及岩土工程学科的一个重要的研究课题。而桩基托换技术是基础托换中非常常用的方法,目前已得到广大研究学者的认可并应用于实际工程当中。桩基基础加固改造方面的研究在很多方面都取得了一定的成果,而且很多的研究成果都已经应用到了具体的工程施工当中,但在施工过程当中还是会遇到各种各样的难以解决的问题需要结合工程实际情况得以解决。本文就是基于这样的背景,旨在推动桩基托换理论与应用的研究,使桩基托换设计和施工技术趋于规范化、标准化,在充分利用城市地下空间的同时,确保的地基基础的长期稳定。研究该结果应用广泛与基础各类的评估、测检、改造和加固工程当中,较大的具有了理论意义和价值使用工程。如下几个方面在本文中的研究理论、数值和试验进行了研究,研究成果取得了一些:(1)介绍了国内外主要的基础托换技术及其应用现状,重点讨论了桩基托换技术的原理,对同时托换基础工程注意应该的阐述的问题,实际工程当中要在本文章当中解决;(2)实例合结工程,桩基介绍托换基础过程当中需要涉及的技术关键。对工程首先应该要进行了解,其次是关键的几个问题技术进行处理和介绍;(3)对改造加固进行工程监测,内容上研究的主要方面从监测方案桩拟定,垂直沉降量的基础监测,从监测现场的变化位移对曲线的结果监测评价进行,工程本身非常成功的应用了钢管桩,满足充分的需要改造加固需求。
[Abstract]:In recent years, with the rapid development of economy in our country, the heat of investment enterprises is increasing, the scale of productive enterprises is expanding, and the functional requirements for the use of existing buildings are getting higher and higher, which leads to the reinforcement and transformation of existing buildings. Therefore, more and more attention has been paid to the detection, identification, reinforcement and transformation of existing buildings, which has become a new subject in the field of civil engineering, and has gradually become an important branch of the construction industry. Underpinning and reconstruction technology is mainly an effective means to strengthen and transform the foundation, and it is an important research topic in structural engineering and geotechnical engineering at present. Pile foundation underpinning technology is a very common method in foundation underpinning, which has been recognized by many researchers and applied in practical engineering. Some achievements have been made in the research of pile foundation reinforcement and reconstruction in many aspects, and a lot of research results have been applied to the specific engineering construction, but in the construction process, there will still be a variety of difficult problems to be solved in combination with the actual situation of the project. Based on this background, this paper aims to promote the research of pile foundation underpinning theory and application, to standardize and standardize the design and construction technology of pile foundation, and to ensure the long-term stability of foundation while making full use of urban underground space. The research results are widely used in basic evaluation, measurement, transformation and reinforcement projects, which have great theoretical significance and value use engineering. The following aspects are studied in the research theory, numerical value and experiment in this paper, and the research results are as follows: (1) the main basic underpinning technology and its application status at home and abroad are introduced, the principle of pile foundation underpinning technology is discussed, and the problems that should be paid attention to in the simultaneous underpinning foundation engineering should be solved in this paper. (2) example joint engineering, pile foundation introduces the technical key that needs to be involved in the process of underpinning foundation. First of all, we should understand the project, followed by the key problems and techniques to deal with and introduce; (3) to carry on the engineering monitoring to the reconstruction and reinforcement, the main research aspect is from the monitoring scheme pile formulation, the vertical settlement foundation monitoring, from the monitoring site change displacement to the curve result monitoring evaluation, the project itself has applied the steel pipe pile very successfully, satisfies the sufficient need to transform and reinforce the demand.
【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU753.8

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