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位置：首页 >> 期刊文章
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摘要：
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混凝土预制块体与块石基床间的摩擦系数有时因受夹层物质的影响而改变.预制混凝土块体时所采用的各种脱模材料以及施工中遇到的基床上的浮泥便有此影响.在工程设计中采用统一定值的摩擦系数,不能满足实际需要,否则会导致滑动失稳事故的发生.对使用油毡原纸为脱膜材料和基床上存在浮泥对摩擦系数的影响,在施工现场分别进行了试验研究.油毡原纸使摩擦系数降为0.517,密度为12.75KN/m~3的泥浆能使摩擦系数降为0.526,比没有夹层影响时的0.607分别下降了15%和13%.
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Coefficient of friction between precast concrete blocks and rubble mound foundations sometimes with the influence of interlaying material, such as various form removal aids used in precasting of concrete blocks and sludge on foundations. The unitedly fixed frictional coefficients,if they are used in designs,could not meet the actual demand in construction work and may result in slipping of concrtet blocks and subsequent destabilization. Field study and investigation of the influence of felt,which was used as form removal aids,and sludge on the foundation upon the frictional coefficient were carried out. The frictional coefficient was reduced to 0. 517 when felt was employed,while frictional coefficient was reduced to 0. 526 when there was sludge with a density of 12. 75kN/cu. m. lying between concrete blocks and foundations. As a result,frictional coefficient was reduced by 15% and 13% respectively,comparing with the frictional coefficient of 0. 607 when there is no influence of inter layers.
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基金项目：
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作者简介：
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参考文献：
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[1]“港口工程”增刊2《港口工程》编辑部,1986.2
[2]混凝土块体基底摩擦系数试验报告,交通部第航务工程局和五公司
[3]底面带油毡的混凝土方块沿基床面滑移试验报告,交通部第一航务工程局第三公司,1984.l0
[4]预制块体与块石基床间摩擦系数现场实验报告,天津大学水资源与港湾工程系,1993.3
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