Germany – Architectural, construction, engineering and inspection services – Planung der Sanierung des Markus-Semmler-Stollns, NW-Teil, Sanierungsabschnitte G bis I

Planning services in accordance with § 43 HOAI 2021 in the scope of engineering structures in phases 1 - 3, 5 - 7 and optionally in phase 8, as well as special services in phase 2 and optionally in phase 8. The Markus-Semmler-Stolln served from 1946 to 1956 as an initial adit and water drainage adit for the uranium ore deposit Schneeberg-Oberschlema of SAG/SDAG Wismut. Since 2011, significant sections of the Markus-Semmler-Stolln have been upgraded in the southwest part of the Schneeberg deposit, and mine waters have been collected and selectively drained. In the northwest part of the deposit, relevant adit sections were explored as part of conceptual work, significant problem areas were documented and evaluated. As a result of this evaluation, remediation sections were defined. Remediation section G comprises areas of the Markus-Semmler-Stolln from "Sauschwart SW section" to "Rappold", remediation section H from "Sonnenwirbel" to "Schimmelsberger wing" and remediation section I from "Sauschwart NW section" to "Zwickauer Spat/ crosscut 62".