Masonry Dams Research Articles

Closure to “Steele on Masonry Dams”

Closure to “Steele on Masonry Dams”

Closure to “Crosby on Masonry Dams”

Closure to “Crosby on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Closure to “Masonry Dams: A Symposium: Design of Arch Dams”

Closure to “Masonry Dams: A Symposium: Design of Arch Dams”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Discussion on Masonry Dams

Discussion on Masonry Dams

Closure to “Masonry Dams: A Symposium: Foreword”

Closure to “Masonry Dams: A Symposium: Foreword”

Closure to “Masonry Dams: A Symposium: Basic Design Assumptions”

Closure to “Masonry Dams: A Symposium: Basic Design Assumptions”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Closure to “Paul and Jacobs on Masonry Dams”

Closure to “Paul and Jacobs on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Discussion of “Creager on Masonry Dams”

Geological Problems of Dams

The geological and foundation problems involved in the economical construction of safe dams, and the possibilities of geological investigation, are discussed in this paper. The different stages of a complete geological investigation and the objectives of each stage are also discussed. Every branch of geology may be involved in investigation of a dam site and in addition many allied techniques and methods may be necessary. The paper is confined to the consideration of geological and foundation problems of masonry dams founded upon rock.

Some Observations on Adaptability of Michigan Beavers Released in Missouri

The writer believes the observations here recorded will be of interest to those whose knowledge of the beaver rests upon familiarity with the animal in its more northern haunts. There aspen is by far the most important food species, followed by birch, alder, wild cherry and willow, and occasionally oak and a few other species. The population of the native beaver (Castor canadensis missouriensis Bailey) by 1927 had become so depleted that the animal was thought by many to be extinct. Bennitt and Nagel (1), however, reported a few colonies of native beaver surviving in northwestern Missouri as late as 1934. In 1928 two pairs of Michigan beavers, obtained by the Game and Fish Department, were released in Indian Trail State Park on a tributary of the Meramec River near its headwaters in the Ozark portion of the State. Soon afterward beaver cuttings were found along the deeper water behind an old masonry dam in the Meramec River a few miles below the point of release. In 1929 four additional pairs of Michigan beavers were obtained and penned in a spring branch in Indian Trail Park from which they escaped downstream to the Meramec River. Shortly afterward a small colony was reported also about four miles upstream from the original colony at a point in the river known as Dent's Ford.

Photo-Elastic Determination of Shrinkage Stresses

Stresses due to shrinkage of concrete in masonry dams are of interest and importance, but the determination of these stresses is complex and difficult. In practice, the large masses of concrete used in gravity dams are not homogeneous; nor are they isotropic, as the structure is poured in blocks which present many planes of discontinuity. The indeterminate factors on these planes of discontinuity present such formidable difficulties that an accurate determination of shrinkage stresses is impossible. If the problem is idealized, however, by assuming a homogenous , isotropic, simple gravity dam subject to uniform shrinkage, it becomes possible to predict these stresses with some assurance. Although this idealized case is not truly consistent with actual practice, it creates a philosophical “picture,” nevertheless, of the strained condition that should be of value to the judgment of the de signing engineer.

Stabilizing Constructed Masonry Dams by Means of Cement Injections

The title of this paper carries the implication of many difficulties, which to a gratifying degree were surmounted in the process described. In scope the work embraced three principal gravity dams ...

Closure of “Cole on Stabilizing Constructed Masonry Dams”

Closure of “Cole on Stabilizing Constructed Masonry Dams”

Discussion of “Reed on Stabilizing Constructed Masonry Dams”

Discussion of “Reed on Stabilizing Constructed Masonry Dams”

Security from Under-Seepage-Masonry Dams on Earth Foundations

This paper gives the results of, an investigation of more than two hundred masonry dams with various kinds of earth foundation, to determine the length of the percolation path necessary to prevent ...

Engineering for Masonry Dams

The second edition of this text-book on masonry dams is a revision to date of the earlier volume (which was reviewed in Nature of June 20, 1918, p. 301), with the deletion of certain obsolete matter and the inclusion of new data and information, making a net enlargement of 57 pages. The chapter on details and accessories, in particular, has been extended so as to include a fuller description of outlet control and floodgates. A quantity of relevant material has been incorporated which is included in the hydro-electric handbook, by the same author jointly with Mr. Justin, published in 1927.