Munich City Drainage - Bohrtec

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Client	City of Munich Munich City Drainage Friedenstr. 40 81671 Munich
Contractor	Gwd-system GmbH Karlstraße 13a 66557 Illingen
Location and location of the construction site	Sewage treatment plant Gut Großlappen, Fresinger Landstraße 187, 80939 Munich
Brief description of the building task	Production of two horizontal filter strings, each 24m long. Holes were made with 324mm steel casing and lined with stainless steel winding wire filters DN250. Drilling rig BM400 LS
Client's service description	Production of horizontal filters
Special suggestions from the contractor	none
Description of the soil in the soil survey	Gravel/Sand
Ground encountered	Gravel/Sand
Tunnelling depths	-6.40m below GOK
Accuracy vertically and horizontally	0,01
Execution time and rate of advance	Execution period including all ancillary work 6 weeks, 6.00 m/h propulsion
Tunnelling length	24m
Particularities	Core drilling through 90cm bored pile wall (concrete), preventive sealing against groundwater by installing preventers and production of sealing blocks by injection behind the bored pile wall with Sika Inject 102 (Sika Group)

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Bohrtec Gesellschaft für Bohrtechnologie mbH
Konrad-Zuse-Straße 24
D - 52477 Alsdorf
+49 (0) 2404 9881 - 0
+49 (0) 2404 9881 - 10
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