Behavior and Design of Long-Span Metal Culverts
The interaction between flexible metal culverts and the surrounding backfill is examined by means of finite element analyses that simulate the placement of backfilling and subsequent application...

Arch Culvert Research—Phase 3
A 22-ft (6.7m) arch culvert embedded in a highway embankment under 191 ft (58 m) of overfill was instrumented to evaluate the relative behavior of two structural sections subjected to...

Retainining Wall Performance during Backfilling
Field data relating to the structural failure of a long reinforced concrete cantilever retaining wall are presented. The results of a survey of the defected form of the wall are included....

Earthquake-Induced Lateral Soil Pressures on Structures
Based on the behavior of backfill soil, the state of knowledge reflects three design approaches: elastic solutions, elasto-plastic solutions and fully plastic (static) solutions. The major...

Design and Construction of Long-Span Metal Culverts
Long-span metal culverts are built of corrugated-metal plates bolted together. They have spans exceeding 15 ft. Principal applications include use as drainage structures, grade separations,...

New Use for Filter Fabric: Highway Construction
A growing area of filter fabric use is road construction, both secondary and superhighway. The article focuses on one case history in Cambridge, Maryland where, after a one-year test,...

Nuclear Testing of Utility Trench Backfill
For many years, Westchester County municipalities were resigned to the fact that compaction of utility trenches could not be done satisfactorily and that settlement and road failure would...

Panel on Earthquake Induced Earth Pressure: Opening Statement — State-of-the-Art

Vibroflotation Compaction of Cohesionless Soils
Vibroflotation uses a horizontally vibrating probe to densify in-situ cohesionless soils with simultaneous vibration and saturation. The method is described in general terms and each factor...

Backfill Effects on Circular Foundation Stiffnesses
The dynamic behavior of a structure resting on or embedded in an elastic material is a problem that has been of considerable interest in recent years. The determination of the dynamic...

Earth Pressure on Precast Panel Retaining Wall
Earth pressure cells are used to measure lateral earth pressures acting on a precast panel retaining wall. Force transducers are used between the panel and the supporting structural members...

Integrated Study of Reinforced Earth—II: Behavior and Design
An analytical study using the finite element method of an instrumented reinforced earth wall constructed in Southern California is described. The analytical results are compared with the...

Influence of Hydraulic Backfill on Closure and Pillar Stress in Narrow Cut and Fill Stopes

Stability of Trenches Filled with Fluids
This paper traces the historical development of the slurry trench wall. Typical slurry compositions are described and expressions are given for penetration of slurry, blowout gradient,...

Effect of Backfill on Drain Flow in Layered Soils
Transient flow into drains is studied by obtaining computer solutions of the Richards equation by the Alternating Direction Implicit (ADI) method. The flow towards drains placed in two-layered...

Sheet Pile Design with Variable Soil Parameters
A computer program was developed to assist design engineers in their calculations for a sheet pile section under given soil conditions and a given factor of safety in which the Free Earth...

Retaining Wall Under Action of Accreted Backfill
The purpose of this note is to demonstrate the dependence of the behavior of a rigid retaining wall on the construction sequence of the backfill. The accretion process was analyzed through...

Analysis of Pile-Supported Gravity Lock
Results obtained by using the Hrennikoff's method did not agree closely with observed field data in terms of the distribution of loads in the piles. The finite element (FE)...

Passive Pressure in Sands with Uniform Surcharge on Backfill
An extensive retaining wall model testing program has been made at the University of Roorkee, Roorkee, India. The results of passive loading experiments where the dry-sand backfill was...

Design of Insulated Foundations
Traditionally, frost heave of foundations has been avoided by placing the foundations below frost penetration depth. An alternate and, under certain conditions, a more economical method...

 

 

 

 

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