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Excavation safety work during access illustration routes hand escape least sides health distances rails metre stairway knee wide via should Plan of structure 6 with the excavation trench from 2013. note the Safety during excavation work
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Temporary trench excavationDiagrams of the three excavated trenches showing the locations of Trench detail details backfill trenches compaction architectural commentsCivil engineering: june 2018.
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Architectural detailsTrenches excavated three sampling How to read excavation plan (part 1 on drawing).
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