Tension Measurements at the Bartensleben Shaft Tender, Germany - 117275281

Procurement Summary

Country : Germany

Summary : Tension Measurements at the Bartensleben Shaft

Deadline : 28 Apr 2025

Other Information

Notice Type : Tender

TOT Ref.No.: 117275281

Document Ref. No. :

Financier : Self Financed

Purchaser Ownership : Public

Tender Value : Refer Document

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Tender Details

The short-time voltage measurement for determining the current tangential voltage level in shaft expansion must be carried out according to the small flat-jack procedure (SFJ process, in accordance with recommendation no.22 of the German Society for Geotechnology e.V.). For this purpose, several pairs of measuring bolts are in the surfaceto use the locations to be examined and to carry out an initial measurement of the measuring bolt distances. The depth of the measuring bolts must be adapted to the focus of the selected pressure pillow. Then a slot with a diamond saw with a thickness of a maximum of 6.2 mm is between theTo produce measuring bolts. For this, it is necessary that the saw blade is inserted normally to the component surface by a guide fixed on the component, a "swiveling in" the saw is not permitted. The distances between the measurement bolts changed by the relief must be redesigned. InThe slot is to be used by the pressure pillow tailored to the end of the slit dimensions. Using a pump, the pressure can be gradually increased until the original distances between the measuring bolts are produced. This process is through a regular orto monitor a continuous distance measurement between the measuring bolts. The pressure necessary to reserve the deformations is taking into account a calibration factor for the pillow and the area ratio pillow/slot in the normal voltage originally standing to the slitto change. The calibration factor of the pressure cushion must be determined by laboratory tests or specified by the manufacturer. The documentation must be submitted. Tension measurements

Surveying Services (CPV code: 71355000-1)*to make this notice easy to find, cpv codes have bee automatically Added WhereAppropriates.

tension measurements at the Bartensleben shaft

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