英语翻译APPLICATION OF MONITORING STRESS TO SPECIAL CASES OF EMB

英语翻译
APPLICATION OF MONITORING STRESS TO SPECIAL CASES OF EMBANKMENT DAMS
DAMS WITH SENSITIVE CONDUITS OR OTHER INTERNAL STRUCTURES
In situations where the stress imposed by the embankment overburden on buried conduits and structures or retaining structures is of concern,a total pressure cell can be recessed into the face of the structure to measure the pressure.The coreblock in Oroville Dam,a 770-foot high embankment in northern California was an example of where stress cells were used to monitor the stress imposed on an internal structure due to embankment placement.
DAMS WITH ROCKFILL SHELLS
An example of a need for stress measurement could be the case where a dam has a steep sided soft core and a relatively stiffer shell.With differential settlement between core and shell material it is possible that the core could "hang up" on the shell.If this occurs,it could tend to unweight the lower portions of the core.This will reduce the overburden pressure (and thus lateral pressure) toward the bottom of the core.If the hydraulic pressures are great enough,hydraulic fracture of the core could occur,raising the potential for piping of the core.This would be a situation where lateral stress in the lower portions of the core could be measured using a self-boring pressuremeter drilled down from the crest.A self-boring pressuremeter can also be used to measure lateral stress beside conduits and retaining walls.

运用监测土石坝应力对特殊情况
水坝敏感的管道或其他内部结构
在情况下的关于埋管道和路基结构或围护结构所施加的压力是超负荷的关切,总压细胞可分为结构面凹入测量的压力.在奥罗维尔水坝,一个770英尺高的路堤在加州北部coreblock是一个例子应力细胞用来监控内部结构由于填筑施加的压力.
堤坝的土石坝壳
一个一个地应力测量需要例子是一个大坝的情况下有一个陡峭的双面软核和相对严厉的外壳.随着差距的核心,外壳材料,有可能解决的核心能“挂在空壳”.如果发生这种情况,它可能倾向于unweight较低的核心部分.这将减少上覆压力（因此侧向压力）对核心的底部.如果液压压力是巨大的,水力压裂的核心可能会发生,提高核心管线的潜力.这将是其中的核心部分低侧压力可以衡量采用自钻压钻从波峰下降的情况.阿自钻压也可用于测量管道和旁边的挡土墙侧向压力.