Construction Inspection Research Articles

Embankment seepage control design and construction : Pritchett, E C In: Seepage and Leakage from Dams and Impoundments (paper to the Symposium, Denver, Colorado, 5 May 1985)P31–43. Publ New York: ASCE, 1985

For seepage control features of embankment dams, design criteria and construction practice is reviewed as it is reflected in the experience of the U. S. Army Corps of Engineers. The generally accepted principles of embankment zoning are presented along with a discussion of some material property uncertainties that have been recognized following the unsatisfactory, in-place behavior of materials traditionally considered as being acceptable. Reliance is on the increase for internal filters, drains, and transition zones to perform a difficult variety of important functions ranging from the normal control of internal seepage, to effective defenses against deformation cracking and hydraulic fracturing. These multiple functions are identified and the need for more definitive specifications and thorough construction inspection is emphasized to assure effective translation of design intent to a satisfactory as-built condition. Recommendations are also offered for the enhancement of contract specifications.

Radiographic Inspection of Plank-House Construction

Radiographic Inspection of Plank-House Construction

Predicting Hydraulic Conductivity of Clay Liners

Data are presented from four projects in which rates of leakage from ponds lined with clay significantly exceeded the rates that would have been predicted on the basis of laboratory permeability tests. The actual hydraulic conductivities of the clay liners were generally found to be 10 to 1,000 times larger than values obtained from laboratory tests on either undisturbed or recompacted samples of the clay liner. The source of difficulty with laboratory permeability tests is the problem of obtaining a representative sample of soil for testing. Neither recompacted samples nor small, undisturbed samples are likely to contain a representative distribution of desiccation cracks, fissures, slickensides, or other hydraulic defects that may be present in the liner. Field permeability tests were performed for three of the four case histories and yielded results that compared well with field performance. Field permeability tests seem to produce much better results than laboratory tests. The four projects had certain features in common: (1) In all cases involving comparatively high rates of leakage, the liners were relatively thin (less than 24 in. or 0.6 m thick); (2) with only one exception, all of the liners were subjected to some desiccation; and (3) in essentially all cases, the construction inspection was not as extensive as it might have been.

The Pacesetter Experience: Practices and Recommendations to Insure Structural Integrity of Semisubmersibles from Design to In-Service Inspections

The partnership of sound design, a competent builder, effective construction inspection, and proper operation and maintenance is necessary to have a successful mobile offshore drilling unit. Current experience indicates the relative importance of construction inspection in reducing the need for in-service structural inspections. Not only are the results of construction inspection easier to detect and repair, but they are also cost-effective. Cooperation between the designer, builder, owner, regulatory body and classification society is necessary to achieve this proper balance between construction and in-service inspection.

Tunnel conduit of the Papana reservoir

1. The use of a longitudinal dividing wall in the tunnel made it possible to dispense with construction of two independent tunnels for use in construction and operation and makes possible inspection and repair of equipment and construction of the conduit without interrupting its operation. 2. Construction of the surface spillway sill in the cofferdam between the bank and intake tower greatly reduces the volume of work on excavating an additional pit and improves operation of the hydrodevelopment.

Diving Reconnaissance and Underwater Inspection

Emphasis is placed on integrating the diving engineer into the coastal engineering design process to demonstrate how his special knowledge can become a key factor in designing and constructing underwater structures. The diving engineer has two basic functions: (1)Diving reconnaissance to obtain basic first-hand knowledge of a project site’s environmental and physical characteristics; and (2)construction inspection to ensure quality underwater construction work. Specific diving procedures for conducting underwater reconnaissance surveys and inspecting subaqueous construction are described. The relationship between manned diving systems and remote controlled underwater reconnaissance vehicles is examined. Diving safety and training are also presented.

Responsibility for Trenching and Excavation Design

To protect the lives of workmen and the public, traditional engineering and construction methods should be changed so that an engineer will explore each site, analyze each excavation and design any necessary support and dewatering system. This information should be completely disclosed in the bid documents. The engineer should never try to pass this legal responsibility to the contractor through exculpatory and caveatory phrases; change of condition clauses should be included in contract documents. Inspection of construction should be conducted by the engineer including the temparary support system as well as permanent construction. /ASCE/

Inspection of Building Construction

Inspection of Building Construction

NAVAL PROCUREMENT

Journal of the American Society for Naval EngineersVolume 61, Issue 4 p. 799-818 NAVAL PROCUREMENT A Thorough Discourse on a Subject With Which All Naval Engineers who Practice the Profession Should be Familiar Captain John H. Keatley, Captain John H. Keatley U.S.N. The author After graduation from the Naval Academy in 1929, Captain Keatley served aboard the U.S.S. Tennessee from 1929 until 1931. He was assigned under instruction in Naval Construction at the Naval Academy Post- Graduate School for one year and for two years at Massachusetts Institute of Technology. Upon completion of this course and ancillary short courses during the summer he was assigned duty at the Naval Shipyard Mare Island serving during a three year tour as Assistant Planning Superintendent, Assistant Shop Superintendent, and Drydocking Officer. From 1937 to 1939 he served as Hull Superintendent and Assistant Planning Officer at the Naval Shipyard Cavite, P.I. In October 1939 he reported for duty to the Superintending Constructor, New York, and remained in that office when the Bureau of Engineering and Construction and Repair combined into the Bureau of Ships and the Superintending Constructor's Office merged with the Office of Supervisor of Shipbuilding. During this period his duty included inspection of construction of destroyers small craft and design supervision of a variety of vessels including cruisers and jeep-carriers, amphibious types and small craft. In 1944 he was ordered to the Staff of the Commander, Service Force Seventh Fleet and acted as Chief Staff Officer for the Service Force Representative at Lingayen. After serving as Ship Maintenance Officer, Logistics Officer and Officer-in-Charge of the Philippine Army Off-Shore Patrol (Filipino Navy) on the Staff of Commander, Philippine Sea Frontier and Commander, Naval Forces Philippines, he was assigned duty as Deputy Director of Contracts, Bureau of Ships, in April 1947 succeeding to the Directorship in June 1948, his current assignment.Search for more papers by this author Captain John H. Keatley, Captain John H. Keatley U.S.N. The author After graduation from the Naval Academy in 1929, Captain Keatley served aboard the U.S.S. Tennessee from 1929 until 1931. He was assigned under instruction in Naval Construction at the Naval Academy Post- Graduate School for one year and for two years at Massachusetts Institute of Technology. Upon completion of this course and ancillary short courses during the summer he was assigned duty at the Naval Shipyard Mare Island serving during a three year tour as Assistant Planning Superintendent, Assistant Shop Superintendent, and Drydocking Officer. From 1937 to 1939 he served as Hull Superintendent and Assistant Planning Officer at the Naval Shipyard Cavite, P.I. In October 1939 he reported for duty to the Superintending Constructor, New York, and remained in that office when the Bureau of Engineering and Construction and Repair combined into the Bureau of Ships and the Superintending Constructor's Office merged with the Office of Supervisor of Shipbuilding. During this period his duty included inspection of construction of destroyers small craft and design supervision of a variety of vessels including cruisers and jeep-carriers, amphibious types and small craft. In 1944 he was ordered to the Staff of the Commander, Service Force Seventh Fleet and acted as Chief Staff Officer for the Service Force Representative at Lingayen. After serving as Ship Maintenance Officer, Logistics Officer and Officer-in-Charge of the Philippine Army Off-Shore Patrol (Filipino Navy) on the Staff of Commander, Philippine Sea Frontier and Commander, Naval Forces Philippines, he was assigned duty as Deputy Director of Contracts, Bureau of Ships, in April 1947 succeeding to the Directorship in June 1948, his current assignment.Search for more papers by this author First published: November 1949 https://doi.org/10.1111/j.1559-3584.1949.tb02656.x AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume61, Issue4November 1949Pages 799-818 RelatedInformation