本文選題：堤防 + 深厚軟基��； 參考：《南昌大學》2017年碩士論文

【摘要】：堤防是指沿河、渠、湖、海岸或行洪區(qū)、分洪區(qū)、圍墾區(qū)的邊緣修筑的擋水建筑物。堤防是世界上最早廣為采用的一種重要防洪工程。筑堤是防御洪水泛濫、保護居民和工農業(yè)生產的主要措施。河堤約束洪水后,將洪水限制在行洪道內,使等流量的水深增加,行洪流速增大,有利于泄洪排沙。堤防還可以抵擋風浪及抗御海潮。本文以九江縣赤湖中堤綜合整治工程建設為工程背景,研究了堤防的設計、施工等方面的內容。主要做了以下工作:(1)水文、地勘分析工程布置及主要建筑物設計。首先研究了堤線的布置,在分析了水文和工程地質相關資料的基礎上,綜合考慮堤線走向、保護區(qū)域的范圍以及工程投資效益等因素的影響,選定堤線的布置。然后通過方案的對比確定了堤防斷面的擬定,確定了堤防斷面的主要技術參數。(2)擠淤分析。赤湖中堤建設的主要難點和工程關鍵是穿過湖底有深厚淤泥層的湖面,因此綜合工程的安全和施工方案考慮,為獲得穩(wěn)定的堤基和準確的工程量、節(jié)省工程投資,必須對擠淤的過程開展深入的分析。(3)施工技術方案研究。由于淤泥等軟弱土地基具有高的觸變性和流變性,如何在淤泥上施工一直是水利工程建設的難點。本文利用擠淤分析計算的結果用于指導施工,通過實地方案比較實驗,選擇最適合本工程建設的施工方案。結果表明:擠淤分析計算的結果可靠,可以用于指導施工。正確的選擇施工方案對工程建設的安全和質量的保證及節(jié)約投資有重要意義。
[Abstract]:A levee is a water retaining structure built along a river, canal, lake, coast, or flood area, flood diversion area, and the edge of a reclamation area. Levee is one of the earliest flood control projects widely used in the world. Embankment is the main measure to prevent flood and protect residents and industrial and agricultural production. After the flood is restrained by the river embankment, the flood is confined to the flood path, which increases the water depth and the flow velocity of the constant flow, which is beneficial to flood discharge and sediment discharge. Levees can also withstand the winds and waves and resist the tide. In this paper, the design and construction of embankment in Chihu of Jiujiang County are studied. Mainly do the following work: 1) Hydrology, geological survey and analysis of engineering layout and main building design. Firstly, the layout of embankment line is studied. On the basis of analyzing the relevant data of hydrology and engineering geology, the layout of embankment line is selected based on the comprehensive consideration of the influence of the dike line strike, the scope of protection area and the benefit of project investment. Then, the drawing up of embankment section is determined through the comparison of schemes, and the main technical parameter of embankment section is determined. The main difficulty and engineering key of levee construction in the red lake is to pass through the lake with deep silt layer at the bottom of the lake. Therefore, considering the safety and construction plan of the comprehensive project, in order to obtain stable dike foundation and accurate engineering quantity, the project investment can be saved. It is necessary to carry out deep analysis on the process of silting. Due to the high thixotropy and rheology of the soft soil foundation such as silt, how to construct on the silt is always a difficult point in the construction of water conservancy engineering. In this paper, the results of desilting analysis and calculation are used to guide the construction, and through the comparative experiments of the field schemes, the construction scheme which is most suitable for the construction of the project is selected. The results show that the calculation results are reliable and can be used to guide construction. The correct choice of construction scheme is of great significance to guarantee the safety and quality of engineering construction and save investment.
【學位授予單位】：南昌大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TV871

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本文編號：1917299