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首页> 外文会议>The design and application of controlled low-strength materials (flowable fill) >USE OF CONTROLLED DENSITY FILL TO FILL UNDERSLAB VOID
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USE OF CONTROLLED DENSITY FILL TO FILL UNDERSLAB VOID

机译：使用受控密度填充来填充UNDERSLAB VOID

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During the removal of a portion of a warehouse slab for the United States Navy, a large void that was caused by water erosion was discovered. The void was created behind a concrete seawall by years of tidal and current action. Conventional granular backfill material was considered but was dismissed as being nearly impossible to install and compact. Controlled density fill (CDF) was proposed and accepted as an acceptable backfill methodrnAccess holes were drilled along the exterior of the warehouse to allow easy placement of the CDF. A bulkhead made from sandbags was installed in the void to prevent the CDF from flowing past the limit of approved work. The CDF was installed over a period of two days to lessen lateral pressure on the sand bag bulkhead and vertical pressure on the bottom of the void adjacent to the concrete seawall.rnBy using controlled density fill, the project was successfully completed quickly and at a fraction of the original estimated cost using conventional granular backfill materials and methods.
机译：在为美国海军拆除一部分仓库平板时，发现了一个由水蚀引起的大空隙。多年的潮汐和当前行动在混凝土海堤后面创造了空隙。考虑了传统的粒状回填材料，但由于几乎无法安装和紧凑而被废弃。提出了受控密度填充（CDF），并被接受为可接受的回填方法。沿仓库的外部钻了通孔，以方便CDF的放置。由沙袋制成的隔板安装在空隙中，以防止CDF超过批准的工作极限。 CDF安装了两天的时间，以减轻沙袋舱壁的侧向压力和邻近混凝土海堤的空洞底部的垂直压力。通过使用受控密度填充，该项目得以快速，成功地完成了常规颗粒回填材料和方法的原始估算成本的百分比。

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