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Tunnel Lining with the Rex Pumpcrete REPRINT Hard Cover
Tunnel Lining with the Rex Pumpcrete REPRINT
Chain Belt Company
Hard Cover
Tunnel Lining With Rex Pumpcrete
Reprint
97 pages
This is a reprint of Tunnel Lining with Rex Pumpcrete published in 1948. This book has served its purpose well as a cost guide in estimating many types of tunnel jobs. It has also been very useful to the construction superintendent in planning jobs for economical Pumperete operations. Throughout the years. a very large number of firm owners. estimators, engineers and job superintendents have told us how useful this book has been in their operations to get lower placing cost.
All prices of pumperete and pipeline, as stated in this book, dealing with cost must be adjusted to current prices.
Both skilled and unskilled labor rates have increased very materially since this book was published. Therefore. all labor rates must be changed in accordance with the rates in the particular area in which you are operating.
Under the present high construction costs. pump-crete can save more money than ever before. because it eliminates rehandling equipment and saves manpower, resulting in lower operating cost.
Why Pumperete Leads the Field in Tunnel Lining 1
Why the Pumperete Does a Better Job 1
Economy of the Pumperete System 1
Fill That Arch 1
Tunnel Lining Procedure 2
Concreting Sequence 3
Two Basic Methods of Lining Tunnels 3
Economy of an Outside Pumping Installation3
The Inside Setup 4
Tunnel Liners 5
Standard Pumperetes Employed as Tunnel Liners 8
Horizontal Arch Pipes 8
The One-Piece "Slick" 9
Flattened "Slick" Pipes 9
Multi-piece Arch Pipes 9
Pipe Jumbos and Dollies 11
The Air Slugger 11
Volume of Air Required for Efficient Slugging 11
Method of Using Air Slugger with Tunnel Liners 12 Method of Using Air Slugger with Stationary
Setup 13
Separate Arch and Sidewall Pours 13
Page
Sidewall Concrete Deposited in Horizontal Layers 15
Pumping Through the Form 16
Bulkhead Closure 17
Closure Between Completed Sections of Tunnel
Arch 17
Filling Overbreaks 18
Forming and Pouring Tunnel Invert 19
Utilizing Pumperete Flexibility 20
Simultaneous Mining and Concreting in a Soft
Ground Tunnel 20
Lining Rock Tunnels Before Excavating is Com-
pleted 21
Booster Pumping Tunnels of Intermediate Length 22
Concrete Drop Pipes 22
Venting Drop Pipes 23
Disposing of Excess Concrete 25
Cleaning the Pipeline 26
Goosenecks for Small Tunnels 26
Typical Small Tunnel Installations 27
Pumping Into Compressed Air Headings 28
Concrete Air-Locks 28
Concreting Tunnel Shafts 29
NTRODUCTION 31
AQUEDUCTS 32
Pumping Concrete for Tunnel Lining on the
Aqueduct 32
Hard Rock Tunneling 35
Building Baltimore's Big Tunnel 40
Lining Inclined Section of Delaware Aqueduct 44
Contract 323Delaware Aqueduct 49
Record Set on 1700 Ft. Tunnel Heading 52
PENSTOCKS, DAM DIVERSION AND SPILL-
WAY TUNNELS 54
Parker Dam Powerhouse (Photograph) 54
Seminoe Dam Spillway and Diversion Tunnel 55
Pumpereting at Grand Coulee 56
Plugging the Diversion Tubes in Friant Dam 59
Plugging the Diversion Tunnel at Shasta Dam 60
Merriman Dam Diversion 61
Youghiogheny Dam Outlet Works 62
Distribute Concrete by Pipeline in Tunnel for
Dam 64
SEWER TUNNELS 68
Concrete Tunnel Lining Pumped Down Drill-
ed Holes 68
Page
SEWER TUNNELS(Contd.)
Lexington Avenue Combined Sewer, Rochester,
N. Y. 72
Labor Cost in Lining a Small Tunnel 73
HIGHWAY TUNNELS 75
Yerba Buena 76
The Eastside Highway, Rainier National Park 77
Bankhead Highway Tunnel 78
Pennsylvania Turnpike Tunnels 78
CHICAGO SUBWAY 79
Concrete Lining Pumped Into Chicago Subway 80
Contract D-3 Chicago Subway 83
RAILWAY TUNNELS 86
Relining a Railroad Tunnel 86
Denver & Salt Lake Steps Up Long-Range
Tunnel Lining Program 87
Great Northern Relines Tunnel No. 11.1 90
Baltimore & Ohio Repairs in New Kingwood
Tunnel 92
MINES 95
Progress of Slushing and Ground Support at
Climax 95
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