Tunnel and shaft solutions brochure - Humes

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Right: Attaching a grout plug to a grout/ lifting socket Innovative features Caulking grooves and sealing grooves All segments are cast with caulking grooves on the circumferential and longitudinal sides. Sealing grooves for either hydrophilic strip or elastomeric compression gaskets can be incorporated at the time of casting. Grout socket assembly Each segment is fitted with a plastic grout socket assembly which includes a non-return valve. The socket is used to inject grout to permanently secure the rings. Packings Bituminous felt packing of 3 mm nominal thickness should be used on all longitudinal joints and can be supplied if required. Circumferential packings made from 3 mm bituminous felt or 3 mm or 6 mm timber can also be supplied if required. Special rings The rings currently available have a taper across one axis. Non standard tapers can be manufactured to the purchaser’s specific requirements. Tunnel construction methods The rings consist of three different segment types. Segments are supplied to the erector in a predetermined sequence dependant upon the alignment required. The ring orientation is altered by erecting segments in a different order (refer to Figure 6). 6 Tunnel and shaft solutions Rings in same orientation for curved alignment Figure 5 – Grout socket assembly Grout/Lifting socket Non-return valve Figure 6 – Segment orientation for curved and straight alignments Rings in same orientation for curved alignment Rings in same orientation for curved alignment Rings rotated at 120o Rings rotated at 120° for straight alignment for straight alignment Sealing washer Threaded grout plug
Segmental and one piece shafts Applications Humes’ precast concrete shafts are an economical and safe solution for permanent and temporary underground structures. They are ideal for a variety of applications including: • ventilation shafts • escape shafts • launch and receival shafts for pipe jacking applications • storage overflow and pump stations (sewerage) • water harvesting and reuse. The shaft system suits a variety of soil conditions, and provides a soil and watertight solution. Humes offer segmental shafts in partnership with Buchan Concrete Solutions Limited (UK). Tunnel and shaft solutions 7 Tunnel and shaft solutions
Page 1: Tunnel and shaft solutions Issue 2
Page 4 and 5: 2 Tunnel and shaft solutions
Page 6 and 7: Joint and connection details Circle
Page 10 and 11: Features and benefits Precast shaft
Page 12 and 13: Top: Underpin method of shaft insta
Page 14 and 15: Typical ring configuration One piec
Page 16 and 17: Segmental shafts Where shaft diamet
Page 18 and 19: Top: Tie rod Bottom: Adjusting the
Page 20 and 21: Right: Ethylene Propylene Diene Man
Page 22 and 23: Product range Humes 3-pin arches ar
Page 24 and 25: Top and bottom: Construction of a b
Page 26 and 27: Benefits of pipe jacking Technical
Page 28 and 29: Fixed steel collar pipes A wide rob
Page 30 and 31: Optimal strength Humes fixed collar
Page 32 and 33: Table 5 - Fixed steel collar pipes
Page 34 and 35: Table 6 - Loose steel collar pipe r
Page 36 and 37: Load class Jacking pipes, as oppose
Page 38 and 39: Right: Vitrified clay jacking pipe
Page 40 and 41: Figure 27 - Joint profiles for DN20
Page 42 and 43: Right: Milled end of adaptor pipe a
Page 44 and 45: Top: CMP on-site manufacturing Bott
Page 46 and 47: Top: Precast arches Middle: HumeDec
Page 48: National sales 1300 361 601 humes.c

Tunnel and shaft solutions brochure - Humes

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