英语翻译The most widely accepted approach for characterizing the loading mechanisms in a soil nailed wall assumes a block-type instability caused by the weight of the soil and wall facing,and any surface loading FHWA1996!.This is resisted by the

英语翻译The most widely accepted approach for characterizing the loading mechanisms in a soil nailed wall assumes a block-type instability caused by the weight of the soil and wall facing,and any surface loading FHWA1996!.This is resisted by the
英语翻译
The most widely accepted approach for characterizing the loading mechanisms in a soil nailed wall assumes a block-type instability caused by the weight of the soil and wall facing,and any surface loading FHWA1996!.This is resisted by the soil’s shear strength along a potential slip surface,the influence of the soil nails on the shear strength,and the lateral force that comes from soil nail support Fig..For soil nails that intersect the slip surface,it is assumed the nail tension has a twofold effect:It increases the normal stress on the slip surface,thus increasing the soil’s frictional resistance for soils with nonzero friction angle,; and can provide a force component opposite those driving the instability.
This slip surface approach,with a number of variations including the incorporation of nail bending effects!has been widely adopted in practice e.g.,Stocker et al.1979; Shen et al.1981;Juran et al.1990!,and has been implemented in a number of
commercially available software programs.These programs cost typically well over $1,000 U.S.dollars!,and are based on the assumed behavior of the reinforced soil mass,slipping along a curvilinear or bilinear surface as indicated in Fig.1.Two relatively well-documented case studies exist of full-scale test walls that were intentionally brought to failure.The Amherst Test Wall Sheahan 2000!,shown in Fig.3,was built in a stiff varved clay and was brought to failure by overexcavating under the existing nail-shotcrete lifts.The failure,monitored using both inclinometers and surface settlement measurements,was estimated as a relatively steep,linear wedge extending from the wall base to the ground surface,about 60° to the horizontal.The Clouterre Test Wall No.1 Plumelle et al.1990!was constructed in Fontainebleau sand and was intentionally failed using surface saturation.As shown in Fig.,instrumentation and observaFig.2 shows the assumed tension distribution in the nail as given by FHWA 1996!.It is based on the nail’s head strength where it intersects the wall facing,the nail’s yield strength,and the nailsoil pullout resistance.

英语翻译The most widely accepted approach for characterizing the loading mechanisms in a soil nailed wall assumes a block-type instability caused by the weight of the soil and wall facing,and any surface loading FHWA1996!.This is resisted by the
最广为接受的方法表征的加载机制在土钉墙呈block-type动荡造成土壤的重量和墙面对任何表面,FHWA1996加载~ !.这是对土壤抗剪强度沿潜在滑动面,土钉的影响,并对其抗剪强度的侧向力,这来自于土钉支持~图1 !.对土钉,交叉的滑动面,故假定钉紧张有双重效应:它增加了滑动的表面法向应力,从而增加了土壤摩擦阻力对土壤具有非零~摩擦角、f !;并能提供一个分力对彼推动的不稳定.
该滑动面方法,有许多变化的一体化~包括钉弯曲效果!已被广泛使用在实践中~例如炉排孙俐.1979年,沈孙俐.1981;朱兰孙俐.1990年,已经实施了!在很多
商业上可用的软件程序的使用.这些项目的成本通常超过1000美元,美元! ~是基于假定的行为、滑动土体加固沿着一条曲线或双线性表面在图1所示.案例研究存在两个相对低劣的足尺寸试验墙被有意地带来失败.Sheahan墙的阿姆赫斯特分校测试显示2000年~ !,图3中,始建于硬varved粘土和被带到失败的overexcavating按现有的nail-shotcrete电梯.通过两种失效,监控和沉降测量inclinometers估计,作为一个相对陡峭,线性延伸从墙上楔形基部的地表,大约60°与水平.测试的Clouterre 1号~ Plumelle墙学组.1990年!建立了在枫丹白露沙子和有意失败了用表面饱和度.,如图4 ~ b !、仪器仪表及observaFig.二显示假定的张力分布在甲片由技术~ 1996 !.它是基于钉的头强度的地方面临相交墙上,钉的屈服强度、抗nailsoil撤军.

商业上可用的软件程序的使用。这些项目的成本通常超过1000美元,美元! ~是基于假定的行为、滑动土体加固沿着一条曲线或双线性表面在图1所示。案例研究存在两个相对低劣的足尺寸试验墙被有意地带来失败。Sheahan墙的阿姆赫斯特分校测试显示2000年~ !,图3中,始建于硬varved粘土和被带到失败的overexcavating按现有的nail-shotcrete电梯。通过两种失效,监控和沉降测量i...

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商业上可用的软件程序的使用。这些项目的成本通常超过1000美元,美元! ~是基于假定的行为、滑动土体加固沿着一条曲线或双线性表面在图1所示。案例研究存在两个相对低劣的足尺寸试验墙被有意地带来失败。Sheahan墙的阿姆赫斯特分校测试显示2000年~ !,图3中,始建于硬varved粘土和被带到失败的overexcavating按现有的nail-shotcrete电梯。通过两种失效,监控和沉降测量inclinometers估计,作为一个相对陡峭,线性延伸从墙上楔形基部的地表,大约60°与水平。测试的Clouterre 1号~ Plumelle墙学组。1990年!建立了在枫丹白露沙子和有意失败了用表面饱和度。,如图4 ~ b !、仪器仪表及observaFig。二显示假定的张力分布在甲片由技术~ 1996 !。它是基于钉的头强度的地方面临相交墙上,钉的屈服强度、抗nailsoil撤军。

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