本文選題：自平衡試樁法 + 深水樁基��； 參考：《武漢理工大學(xué)》2014年碩士論文

【摘要】：目前，跨海、跨河橋梁工程發(fā)展迅速，涉及深水大直徑樁基工程日益增多。因深水樁基施工技術(shù)難度大、施工工序復(fù)雜，，其施工質(zhì)量控制以及承載力分析與試驗(yàn)研究就顯得十分重要。 論文以襄陽市漢三橋深水樁基施工與檢測為依托工程，探討了傳統(tǒng)基樁靜載荷法靜載試樁法和自平衡試驗(yàn)荷載法確定基樁單樁承載力的試樁法及其在實(shí)際工程中的具體應(yīng)用，主要開展了如下研究工作： 分析了鉆孔灌注樁的施工工藝，對大型橋梁樁基檢測方法和理論進(jìn)行研究，重點(diǎn)分析與比較了樁土體系荷載傳遞方程、靜載荷試樁法、自平衡試樁法、動(dòng)力測樁法、靜動(dòng)測樁法和公路橋梁試樁存在的問題。 以襄陽市漢江三橋的試樁項(xiàng)目為工程背景，對超厚砂卵石地層水中樁基的施工工藝、測樁方法進(jìn)行研究，對超厚砂卵石地層傳統(tǒng)靜壓試樁法和自平衡測樁法進(jìn)行對比分析。 采用自平衡試驗(yàn)法對超厚砂卵石層地質(zhì)水中影響基樁單樁承載能力的各項(xiàng)因素進(jìn)行了詳細(xì)的研究分析，得出了超厚砂卵石土層地質(zhì)條件下使用自平衡試驗(yàn)法確定基樁承載力是必須重點(diǎn)關(guān)注的結(jié)論。 論文工作為襄陽市漢江三橋工程樁基施工的順利實(shí)施提供了可靠的理論依據(jù)，順利實(shí)現(xiàn)了超厚砂卵石層深水橋梁基礎(chǔ)施工的質(zhì)量目標(biāo)與工期目標(biāo)。同時(shí)論文研究工作所得結(jié)果與結(jié)論也對同類橋梁的基礎(chǔ)施工質(zhì)量控制與承載力評估具有借鑒意義。
[Abstract]:At present, cross-sea and cross-river bridge projects are developing rapidly, involving deep water large diameter pile foundation engineering increasing day by day. Because the construction technology of deep water pile foundation is difficult and the construction procedure is complex, it is very important to control the construction quality and to analyze and test the bearing capacity of the pile foundation. Based on the construction and detection of deep water pile foundation of Han3 Bridge in Xiangyang City, the paper discusses the traditional pile static load test method and self-balance test load method to determine the bearing capacity of single pile and its concrete application in practical engineering. The following studies were carried out: This paper analyzes the construction technology of bored pile, studies the testing method and theory of pile foundation of large bridge, analyzes and compares the load transfer equation of pile-soil system, static load test method, self-balance pile test method and dynamic pile testing method. Problems existing in static and dynamic pile testing method and Highway Bridge pile Test. Taking the piling test project of Hanjiang No. 3 Bridge in Xiangyang as the engineering background, this paper studies the construction technology and pile measuring method of the pile foundation in the water of the super-thick sand and gravel formation, and makes a comparative analysis of the traditional static pressure pile test method and the self-balance pile test method in the ultra-thick sand gravel stratum. The factors influencing the bearing capacity of single pile in the geological water of super-thick sand and pebble layer are studied and analyzed in detail by using self-equilibrium test method. It is concluded that the bearing capacity of foundation pile must be determined by self-equilibrium test under the geological condition of super-thick sandy pebble soil. The work of this paper provides a reliable theoretical basis for the construction of pile foundation of Hanjiang No.3 Bridge Project in Xiangyang City, and realizes the quality target and construction time target of the deep water bridge foundation of super-thick sand pebble layer successfully. At the same time, the results and conclusions of the paper also have reference significance for the foundation construction quality control and bearing capacity evaluation of similar bridges.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U443.15

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