have a trench face preloaded
Polish translation: umożliwia wywarcie wstępnego nacisku na ściany wykopu
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| 15:06 Dec 1, 2019 |
| English to Polish translations [PRO] Tech/Engineering - Construction / Civil Engineering | |||||||
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|  Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 03:28 | ||||||
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| 3 | umożliwia wywarcie wstępnego nacisku na ściany wykopu |
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Answers
3 hrs confidence: 
umożliwia wywarcie wstępnego nacisku na ściany wykopu Explanation: My interpretation. It may be that the hydraulic cylinders are initially pressurized, which translates into pre-loading of the trench faces. Later, the cylinders are pressurized to the final value. In the meantime, the natural soil cohesiveness keeps the walls from collapsing. |
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