PDFWAC 296-155-66409
Appendix E—Alternatives to timber shoring.
Appendix E to part N - Alternatives to Timber Shoring
Figure N-23, Aluminum Hydraulic Shoring
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Figure N-24, Pneumatic/hydraulic Shoring
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Figure N-25, Trench Jacks (Screw Jacks)
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Figure N-26, Trench Shields
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