Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation of the stressed state in high-pressure tunnel linings
Conclusions It is shown, on the basis of an analysis of experimental data and of the derived design method, that highpressure grouting of the rock mass surrounding the tunnel can definitely prestress the lining. Howerver, creep effects in the rock and the lining concrete cause a marked diminution (by one-half or two-thirds) of the stresses with time.For reliable and economic design of the linings of high-pressure tunnels, it is necessary to conduct a series of laboratory and field investigations aimed at establishing the rheological parameters of the concrete and the rock mass, which will enable the effect of prestressing due to grouting under different geotechnical conditions to be computed on a sufficiently well-founded basis.It follows from the experimental data [3], which can be demonstrated analytically, that the prestressing effect of grouting can be, substantially increased by prolonging the time of grout injection.
Investigation of the stressed state in high-pressure tunnel linings
Conclusions It is shown, on the basis of an analysis of experimental data and of the derived design method, that highpressure grouting of the rock mass surrounding the tunnel can definitely prestress the lining. Howerver, creep effects in the rock and the lining concrete cause a marked diminution (by one-half or two-thirds) of the stresses with time.For reliable and economic design of the linings of high-pressure tunnels, it is necessary to conduct a series of laboratory and field investigations aimed at establishing the rheological parameters of the concrete and the rock mass, which will enable the effect of prestressing due to grouting under different geotechnical conditions to be computed on a sufficiently well-founded basis.It follows from the experimental data [3], which can be demonstrated analytically, that the prestressing effect of grouting can be, substantially increased by prolonging the time of grout injection.
Investigation of the stressed state in high-pressure tunnel linings
Kubetskii, V. L. (Autor:in)
1974
Aufsatz (Zeitschrift)
Englisch
BKL:
56.30
Wasserbau
Lokalklassifikation TIB:
770/6550/8000
Investigation of the stressed state in high-pressure tunnel linings
| Springer Verlag | 1974
| Engineering Index Backfile | 1957
| Engineering Index Backfile | 1956
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