在一些工程建设中.如路基、堤坝的填筑和建筑场地的回填等。土体常作为建筑材料。±体由于经过挖掘、搬运和填筑.原有的结构和状态发生改变,如不经过人工压实.孔隙比往往较大,而且压缩性较高、抗剪强度低,难以满足工程的需要。为了减少填土的工后沉降量,提高强度,工程中必须按照一定的标准,通过碾压、夯实或振动等方法对其进行压实。土的压实效果除了和压实方法有关外,还和土的种类、级配、压实功能和含水率等密切相关。
n. compaction ; ramming ; densification
浅析高速公路页岩路堤的填筑关键技术与施工工艺_建筑工程管理论文 关键词:页岩;路堤;压实;施工工艺 [gap=355]Keywords: shale; Embankment; Compaction; Construction technology
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... taxi carrier 对外租赁车客运棠 consolidation 压实;固结;压密 acoustic absorptivity aci 感音吸收力 ...
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土壤压实 [土壤] soil compaction ; soil compression
压实度 degree of compaction ; compaction degree
压实系数 compacting factor ; compaction coefficient
高压实验 High-Voltage Experimentation
欠压实 uncompaction
压实试验 [建] compacting test
深层压实 deep compaction
振动压实机 vibrating compactor ; vibratory compactor ; vibrating tamper
压实机 compactor ; compacting press
沉积物的分选和压实作用影响渗透率和孔隙度。
Sediment sorting and compaction influence permeability and porosity.
沉积物分选越差或压实越紧,其孔隙度和渗透率就越低。
The more poorly sorted or the more tightly compacted a sediment is, the lower its porosity and permeability.
由于庞大的体积和重量,现在的农业机械有显著的缺点:它们会把土壤压实,降低土壤孔隙度,杀死有益的生命,这意味着农作物不会长得太好。
With their enormous size and weight, today's farm machines have significant downsides: they compact the soil, reducing porosity and killing beneficial life, meaning crops don't grow so well.
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