深覆蓋巖溶地基防滲墻應力變形影響因素

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深覆蓋巖溶地基防滲墻應力變形影響因素(論文4000字)
摘要:堤基防滲技術關系到整個水利工程的安危,是在透水地基上修建擋水建筑物的關鍵。對防滲墻的工作性能進行合理的評價,能夠有效提高堤壩運行的穩定性。本文基于相關理論研究,結合大伙房水庫堤壩工程,對深覆蓋巖溶地基防滲墻的應力進行了系統研究,通過相關數據模型對防滲墻體的相關彈性模量進行了數值計算,研究分析了防滲墻應力變形的影響因素,得到了引起墻體變形的主要原因,塑性墻較之剛性墻,能更好地保持應力狀態,水平位移主要取決于墻后覆蓋層承載條件等結論,為今后相關水利工程的設計施工提供數據支持。
關鍵詞:防滲墻;巖溶地基;彈性模量;塑性墻
Influencing factors of stress and deformation of impervious wall in deep covered karst ground
Abstract:. Embankment seepage control technology is related to the safety of the entire water conservancy project, which is the key to building retaining structures on seepage foundation. The reasonable evaluation of the performance of the impervious wall can effectively improve the stability of the dam. In this paper, based on the relevant theoretical research, combined with the dam project of Dahuofang reservoir, the stress of impervious wall in deep covered karst ground has been studied systematically. The relevant elastic modulus of the impervious wall has been numerically calculated through correlation data model. The main factors that cause the deformation of the wall are the factors that cause the deformation of the impermeable wall. The plastic wall can maintain the stress state better than the rigid wall, and the horizontal displacement mainly depends on the bearing conditions of the wall cover. Related water conservancy project design and construction to provide data support.
Keywords: Cutoff wall;Karst ground;Elastic Modulus;Plastic wall

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