Slurry Backfilling of an Underground Coal Mine

Effects of Slurry Backfilling - Lessons Learned

Some Less Familiar Aspects of Hydraulic Fill Structures

ECPT Investigation of a Slurry Trench Cutoff Wall
ECPT (electronic cone penetration testing) was used to investigate a soil-bentonite backfilled slurry trench cutoff wall at Calamus Dam in Nebraska, The wall was tested shortly after its...

Soil Nailing a Wall
Soil nailing is the reinforced-earth idea (in which the earth must be backfilled behind the wall) applied to cut situations. Soil nails are an inexpensive post-tensioned tieback, consisting...

Sewer Construction Inspection and Testing
Sewer construction testing is the final portion of the team effort that started with the goal of meeting the requirement for a sewer system for the protection of health and environment....

Need a Dependable Backfill—Try a Flowable Fly Ash
Flowable fly ash is a relatively new cementitious structural backfill material. It can be used in water or in the dry and will flow into place without the usual labor-intensive activities...

Flowable Fly Ash: A New Cement Stabilized Backfill
Cement stabilized fly ash placed at a plastic fluid consistency is a new structural backfill material that flows into place, either above or below water, without using sophisticated construction...

Design of Thin Wall Reinforced Concrete Pipe Using Dimension Ratio (DR)
Dimension Ratio is defined as the ratio of the internal pipe diameter to the pipe wall thickness. The Caltrans culvert research leading to the development and use of the Dimension Ratio...

Placing of Impermeable Underwater Membranes
An impermeable underwater membrane has been applied successfully in the construction of a lowered road section in the Netherlands. In this paper the construction technique is discussed...

Geofabric Stabilization of Soft Backfill Materials for Plastic Sewer Pipe Installation

Earth Pressures against Rigid Retaining Walls
This paper outlines the results of unique shaking table experiments to determine neutral and active static and dynamic stresses and the points of application of corresponding total thrust...

Field Tests of Long-Span Aluminum Culvert
A 28.5 ft (8.7 m) span, 17-ft 10-in. (5.4-m) high corrugated aluminum culvert was instrumented to obtain measurements of strain and displacement during backfilling and under static live...

Soil Pressures Due to Aircraft Loans
Soil pressure gages were installed in a crushed limestone backfill of a bomb damaged runway. Measurements were made due to static and dynamic aircraft, C-130 and F-4E, wheel loads. Static...

Soil-Pipe Interaction and Pipeline Design
The problem of steel pipe bend design with and without lateral soil restraint is studied, and the effect of backfill soil deformation on the bend design is postulated. Studies show that...

Reinforced Earth Used At Palo Verde Nuclear Plant
The use of a 30 ft (9 m) high Reinforced Earth wall for permitting concurrent construction of a turbine generator mat and the lower level reactor-auxiliary structures is described. The...

Field Performance of Buried Plastic Pipe

Surface-Mining Legislation and Regulation
This paper highlights the relevant provisions of The Surface Mining Control and Reclamation Act of 1977 (PL 95-87) and provides an overview...

Soil-Bentonite Slurry Trench Cutoffs
Soil-bentonite cutoff walls constructed by slurry trench methods have been employed for about 3 decades. Soil-bentonite cutoff walls are constructed by excavating a continuous narrow trench...

Tokyo's Dainikoro Underwater Tube-Tunnel
The Tokyokou Dainikoro Tube-Tunnel is a four-lane highway tunnel which, when completed in 1980, will provide direct access to manmade islands in the Bay. The estimated cost is about 30...

 

 

 

 

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