The `Down' of Top Down
The 800-space parking area for the Milwaukee Center was built in a four story deep basement of the building. In order to excavate the area without damaging two adjacent historic structures,...
Specifications for Trenchless Excavation
Many advancements and innovations have developed recently in the utilization of trenchless excavation, techniques throughout the world. In many instances, design details and specifications...
Construction Operations for an Early Lunar Base
Construction and excavation operations performed during the earliest stages of a manned lunar base pose a unique set of problems. This paper will describe six construction tasks that are...
Earthmoving in the Lunar Environment
This paper analyzes the lunar 'earthmoving' process with inputs, outputs, and external conditions acting upon it. Lunar environmental conditions such as temperature,...
Extraterrestrials Excavation and Mining with Explosives
Explosion excavation technology may become a valuable tool for economic and efficient base station construction on extraterrestrial bodies. Criteria for explosives which can safely be...
Ground Water Recharge Through Excavated Basins
Excavated basins were used to bypass slowly permeable soils in the Southern High Plains and artificially recharge the Ogallala aquifer. Recharge rates with turbid playa water were as rapid...
Investigation of Excavatability in the Piedmont
The lateral and vertical variability of rock weathering in the Piedmont presents significant problems in evaluating the probable cost of excavation for deep basements, pipeline, road cuts,...
Environmental Monitoring and Observations Before and During Excavation of a Landfill in Owatonna, Minnesota
A Minnesota landfill inactive since 1962 was excavated in 1985 to prepare the site for construction of a new waste water treatment plant. The excavation refuse was disposed of in nearby...
Foundations and Excavations in Decomposed Rock of the Piedmont Province
The five papers in this volume deal with foundations and excavations in the Piedmont Province of the USA. This is a region underlain by very old metamorphic rocks that are overlain by...
Building Constructed Up and Down at Once
The One Westwood Building, now going up in Los Angeles' suburban Westwood, is being built up and down from ground level simultaneously. The key was a slurry wall surrounding...
Excavation in Hard Clays of the Keuper Formation
For the construction of a lock on the Main-Danube-Canal in South Germany a 30 m deep cut had to be excavated in the overconsolidated clays and claystones of the Keuper formation. The strength...
Production Analysis of the Cat 245 Hydraulic Hoe
The productivity of two Caterpillar model 245 hydraulic backhoe excavators was analyzed during their use on a highway construction project in September 1983. The hoes were working in a...
A Mesh Generator for the Modeling of Rock Discontinuities
The need to characterize a rock mass by collecting field data is receiving more and more emphasis as larger, more ambitious underground structures are being built. Yet there is a need...
SIMSUPER5: Tunneling Construction Simulation
This paper presents SIMSUPER5 (SIMulation SUPERvisor version 5) a computer program developed to simulate the tunnel construction process under conditions of uncertainty. The program determines...
Earthmoving and Heavy Equipment
These proceedings are comprised of technical papers, reports, remarks, and discussions presented at the Specialty Conference on Earthmoving and Heavy Equipment in Tempe, Arizona, on February...
Modern Methods for Automating Finite Element Mesh Generation
The collection of finite elements composing the finite element model is the finite element mesh. The five papers in this book describe computer aided methods for generating finite elements...
Ground Freezing for Construction
For almost a century, freezing has been used successfully as an art to stabilize ground and control groundwater. First employed by the mining industry in Europe, it has since been widely...
Geology of the Strontia Springs Arch Dam
Precambrian metamorphic gneisses comprised the foundation rock at Strontia Springs Damsite. Geologic exploration at the axis selected for the arch dam revealed a large shear zone which...
Bentonitic Slurry in Constructing Drilled Piers
Bentonitic slurry is employed extensively in the construction of drilled shafts. While serious problems can occur, evidence is presented to show that the proper use of slurry will lead...
Probability of Stability Design of Open Pit Slopes
Uncertainty and risk have always been associated with mining. This is evidenced in the common mining terminology of proven ore, probable ore, and possible ore. From a geotechnical standpoint,...
Return to search