Some cases of residual stress effects in engineering work

Coates, D F

doi:10.4095/300096

Cited by 11 publications

(10 citation statements)

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“…In the field, high horizontal stresses can manifest themselves in different ways. Such phenomena were observed, for instance, in Ontario by Coates (1964) and in the Niagara Falls area by Lee and Lo (1976), Lo and Morton (1976) and Lo (1978). Franklin and Hungr (1978) Lindner, 1985.…”

Section: And the Soviet Unionmentioning

confidence: 83%

Estimating in situ Stresses

Amadei

Stephansson

1997

Rock Stress and Its Measurement

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Several of these different phenomena are discussed in this chapter. The reader should be aware that no agreement has yet been reached with certainty on this matter and that there is still room for discussion. VARIATION OF INSITU STRESSES WITH DEPTH Several authors have proposed expressions for the variation of the magnitude of the vertical and horizontal in situ stresses with depth at specific sites or for different regions of the world. Most data are for depths of less than 3000 m. Examples of stress profiles and stress variations with depth can be found in Hast

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Section: And the Soviet Unionmentioning

confidence: 83%

Estimating in situ Stresses

Amadei

Stephansson

1997

Rock Stress and Its Measurement

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“…Harris, 1888;HankarUrban, 1906;Dale, 1923;Isaacson, 1957;Leeman, 1962;Coates, 1964;Vidal Romani and Twidale, 1998), for examination and monitoring of such exposures offers critical evidence as to stress conditions near the surface. Rock bursts, direct in situ stress measurements, and distortion of drill holes, as well as various morphological developments, such as A-tents, show that many rock masses are in compression along at least one horizontal axis.…”

Section: Discussionmentioning

confidence: 96%

Active dislocations in granitic terrains of the Gawler and Yilgarn cratons, Australia, and some implications

Twidale

Bourne

2003

South African Journal of Geology

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“…It is readily refuted both by laboratory tests and fi eld evidence (Coates, 1964;Twidale, 1973;Twidale et al, 1996). For instance, while most sheet fractures run roughly parallel with the local land surface, some domes are underlain by synformal sheet partings (Figure 8).…”

Section: Figurementioning

confidence: 96%

On the origin of A-tents (pop-ups), sheet structures, and associated forms

Twidale

Bourne

2009

Progress in Physical Geography: Earth and Environment

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A-tents are also known as pop-ups and by several other local names. They consist of raised slabs or plates of various thicknesses and origins. Laminae are caused by weathering, and spall plates or slabs may be caused in part by freeze-thaw acting on water held in pre-existing partings which are, however, like the sheet fractures that defi ne the thicker sheet structures, probably of tectonic origin. A-tents are the result of the buckling of such laminae, plates and slabs. Again, tectonism in the form of compressive horizontal stress, appears the most likely and common causation, though decreases in lithostatic pressure consequent on unloading and, in particular cases, surfi cial expansion of plates caused by the intense heat of fi res, may also contribute to rock failure and rupture. All A-tents are of Holocene age and are, therefore, neotectonic forms. Some have developed in living memory, and some are known to be developing from blisters. There is some evidence of continued dislocation along sheet fractures and of the transformation of blisters or arches into A-tents under the infl uence of continued lateral compression. This review demonstrates, therefore, that A-tents, sheet structures, and associated forms share a common heritage.

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Some cases of residual stress effects in engineering work

Cited by 11 publications

References 0 publications

Estimating in situ Stresses

Estimating in situ Stresses

Active dislocations in granitic terrains of the Gawler and Yilgarn cratons, Australia, and some implications

On the origin of A-tents (pop-ups), sheet structures, and associated forms

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