高擋土板樁墻施工期三維整體有限元數(shù)值模擬
發(fā)布時(shí)間：2018-09-09 13:30
【摘要】：針對某引江河二線船閘工程,基于ABAQUS建立了船閘地連墻板樁結(jié)構(gòu)三維有限元整體分析模型,開發(fā)了相應(yīng)的FRIC子程序模擬地連墻和土體的相互作用;分11級連續(xù)模擬了船閘施工期5個不同典型階段的錨碇樁、地連墻的內(nèi)力、變形以及錨桿的內(nèi)力變化,并將有關(guān)數(shù)值模擬結(jié)果與現(xiàn)場實(shí)測結(jié)果進(jìn)行了對比,二者取得了較好的一致;對錨桿的布置高程和閘室土體的開挖方式進(jìn)行了優(yōu)化研究。研究表明,所建立的整體分析模型能夠準(zhǔn)確地預(yù)測施工期不同階段錨碇樁、地連墻的變形以及錨桿的內(nèi)力變化情況;閘室土體的開挖過程對地連墻和錨碇樁的變位影響較大;錨桿布置在泥面到閘頂高度的2/3位置時(shí)墻體變形和內(nèi)力最小。
[Abstract]:Based on ABAQUS, a 3D finite element integral analysis model of the wall plate pile structure of the shiplock is established, and the corresponding FRIC subprogram is developed to simulate the interaction between the ground connecting wall and the soil. In this paper, the internal force, deformation and the internal force of anchor rod are continuously simulated by 11 grades of Anchorage piles in five typical stages during the construction period of shiplock, and the results of numerical simulation are compared with the measured results in the field. The layout height of anchor rod and the excavation mode of the sluice chamber soil are studied optimally. The results show that the whole analysis model can accurately predict the deformation of the anchor pile, the deformation of the ground connection wall and the change of the internal force of the anchor rod during the construction period, and the excavation process of the sluice chamber soil has a great influence on the displacement of the ground connecting wall and the Anchorage pile. The deformation and internal force of the wall are minimized when the anchor rod is arranged 2 / 3 of the height from the mud surface to the top of the gate.
【作者單位】： 河海大學(xué)工程力學(xué)系;江蘇省水利建設(shè)工程有限公司;江蘇省水利勘測設(shè)計(jì)研究院有限公司;江蘇省泰州引江河工程第二期建設(shè)局;
【基金】：國家自然科學(xué)基金項(xiàng)目(51579084) 江蘇省水利科技重點(diǎn)項(xiàng)目資助(2013110)
【分類號】：U641.5
本文編號：2232520
[Abstract]:Based on ABAQUS, a 3D finite element integral analysis model of the wall plate pile structure of the shiplock is established, and the corresponding FRIC subprogram is developed to simulate the interaction between the ground connecting wall and the soil. In this paper, the internal force, deformation and the internal force of anchor rod are continuously simulated by 11 grades of Anchorage piles in five typical stages during the construction period of shiplock, and the results of numerical simulation are compared with the measured results in the field. The layout height of anchor rod and the excavation mode of the sluice chamber soil are studied optimally. The results show that the whole analysis model can accurately predict the deformation of the anchor pile, the deformation of the ground connection wall and the change of the internal force of the anchor rod during the construction period, and the excavation process of the sluice chamber soil has a great influence on the displacement of the ground connecting wall and the Anchorage pile. The deformation and internal force of the wall are minimized when the anchor rod is arranged 2 / 3 of the height from the mud surface to the top of the gate.
【作者單位】： 河海大學(xué)工程力學(xué)系;江蘇省水利建設(shè)工程有限公司;江蘇省水利勘測設(shè)計(jì)研究院有限公司;江蘇省泰州引江河工程第二期建設(shè)局;
【基金】：國家自然科學(xué)基金項(xiàng)目(51579084) 江蘇省水利科技重點(diǎn)項(xiàng)目資助(2013110)
【分類號】：U641.5
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