Test Drilling And Boring Work - Drilling Exploration And Safety Measures - Citybahn Essen. The City Of Essen And Ruhrbahn Gmbh Are Currently Planning To Build The New Citybahn Route, Those Coming From The West (Hans-B ckler-Stra e) Via Hachestrasse At Essen Main Station Past And Continue East Along Hollestrasse. The Planned Citybahn The Route Crosses Hachestrasse (West Of Essen Main Station) In This Section Area That Was Problematic In Terms Of Old Mining And With A Total Of 12 Seam Courses, Most Of Which Were Built Down To The Carbon Surface At A Depth Of Around 20 M. There Are Also In The Area Of Influence Hachestrasse Still Has A Ton-Long Day Opening And A Tunnel Crossing. The Exploration And, If Necessary, Securing Of These Potential Old Mining Danger Areas Is The Subject Of This Tender.
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