Former kali mine shaft in the Angersdorf district of Teutschenthal, sunk 1908–10, now sealed for Verwahrung as part of the GTS Grube Teutschenthal underground backfill operation.
Schacht Halle is the principal shaft of the former Hallesche Kaliwerke Aktiengesellschaft, sunk between the summer of 1908 and the summer of 1910 at the Salzstraße in the district of Schlettau (now Angersdorf), approximately 730 metres from the companion Schacht Saale. The shaft reached a final depth of 761 metres and from the outset encountered strong water inflows from the Mittlerer and Unterer Buntsandstein at 130–140 metres depth. Carnallitit was extracted from the Grubenfeld Angersdorf in the years 1911 to 1928 by the Kammerbauverfahren; Steinsalz was also extracted, though the exact extent of Steinsalzförderung is uncertain.
A 1,350-metre Anschlussbahn connected the surface complex to the station at Schlettau, and a Chlorkaliumfabrik was located on the Saale. The associated Schachtanlage Angersdorf was nationalised in 1947, merged with the Kaliwerk Teutschenthal VEB on 1 January 1952, and passed to the GTS Grube Teutschenthal Sicherungs GmbH & Co. KG on 12 May 1992. The shaft now forms part of the GTS underground Versatz and Verwahrung operation, which has been filling the combined void network since 1992.
The Hallesche Kaliwerke Aktiengesellschaft was founded on 14 November 1905 in Köln, by a consortium including the Internationale Bohrgesellschaft in Erkelenz (General Director Anton Raky), the Rheinische Bank in Essen-Ruhr, Gebrüder Röchling in Saarbrücken, and the Sächsisch-Thüringische Aktiengesellschaft für Braunkohlenverwertung in Halle/Saale. The handelsgerichtliche Eintragung was completed on 14 February 1906 and the registered office subsequently relocated to Schlettau. Eight Preußische Normalfelder had been granted by the Oberbergamt Halle, covering the communities of Schlettau, Beuchlitz, Zscherben, Graunau, Bennstedt, and Holleben.
Schacht Halle was sunk between the summer of 1908 and the summer of 1910, located on the Salzstraße west of the Ortslage of Schlettau (now Angersdorf). The shaft reached a final depth of 761 metres. From the outset the sinking encountered strong Wasserzuflüsse from the Mittlerer and Unterer Buntsandstein; the strongest inflows were in the section 130–140 metres depth, at up to 20 m³/h. A Chlorkaliumfabrik was located on the banks of the Saale, and the surface complex was connected by a 1.35 km Anschlussbahn to the station at Schlettau. The companion Schacht Saale, 730 metres distant, had been acquired by the Hallesche Kaliwerke AG on 24 June 1910 through the purchase of the Gerechtsame of the 1909-founded Saale Bergwerksgesellschaft m.b.H.; the Gewerkschaft Saale was bergrechtlich independent but entirely owned by the Hallesche Kaliwerke for Quotierungszwecke.
Carnallitit was extracted from the Grubenfeld Angersdorf from 1911 to 1928 using the Kammerbauverfahren with partial Handversatz; the Abbaukammern were versetzt to approximately 70 per cent of the extraction void. A Gebirgsschlag occurred in January 1916, destroying a Baufeld in the Carnallititabbau. The post-mortem by the Königliche Bergamt concluded that the supporting pillars had been too narrow and the wet Handversatz unsuitable. Solegewinnung was also undertaken from underground Kavernen and via Sonden, with a Sonde III south-east of the Schacht Halle Kalisohle Füllort in operation from 1973 to 1979; soleproduction was subsequently continued from two surface Sonden and from 1993 the resulting underground caverns were used for natural gas storage.
In 1929 the Gewerkschaft Burbach acquired the majority of Krügershall-Aktien, bringing both the Teutschenthal and Angersdorf operations into the Burbach-Konzern. In 1937 the Hallesche Salzwerke AG (as the company had been renamed in 1929) absorbed the Gewerkschaft Saale and the Chemische Fabrik Kalbe GmbH, renaming itself Hallesche Salzwerke und Chemische Fabrik Kalbe. In early 1945 the registered office was transferred to Halle (Saale). In 1947 the Aktiengesellschaft was expropriated without consent of the Soviet Military Administration and transferred to Volkseigentum. On 1 January 1952 the VEB Hallesche Salzwerke Angersdorf was merged with the Kaliwerk Teutschenthal. The combined underground workings of the Grubenfelder Teutschenthal, Salzmünde, and Angersdorf had been connected since 1925 at the level of the 713-metre Sohle. In January 1974 a Wetterflachen underground breakthrough to the Kali-Sohle (745 m) of the Schachtanlage Halle was completed from the Teutschenthal Ostfeld side.
Kaliproduktion across the combined complex ended in 1982. On 12 May 1992 the Schachtanlage Angersdorf, together with the interconnected Schachtanlagen Salzmünde and Teutschenthal, passed to the GTS Grube Teutschenthal Sicherungs GmbH & Co. KG, which has been a subsidiary of the Geiger Unternehmensgruppe since 2008. The GTS conducts underground Versatz with bergbaufremde mineralische Abfälle at a rate of over 200,000 tonnes annually, reducing the Gebirgsschlagsrisiko from the approximately 12 million cubic metres of residual void space. The Schacht Halle is undergoing formal Verwahrung as part of the GTS programme.