Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 16 of 16 for “"Earth Dams"”.
-
Hydraulic Fracturing in Earth Dams (Boreholes)
… proposed mechanisms of hydraulic fracturing in earth embankment dam cores and boreholes published by various authors have been outlined and compared in this investigation. An experimental study was conducted which reinforces the fact that hydraulic fracturing in boreholes is a tensile phenomenon.
-
Measured and predicted pore pressures in earth dams
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1980.
-
A Study of Deformations in Selected Rockfill and Earth Dams
Made available in DSpace on 2014-12-08T23:57:00Z (GMT). No. of bitstreams: 1 6808234.pdf: 15410075 bytes, checksum: 3c8c916887ed63ce2bf1581065db15a9 (MD5) Previous issue date: 1967
-
Numerical Investigation into the effects of cavities on stability of slopes and seepage through earth dams under rapid drawdown condition
The stability of dams and natural slopes is a significant and interesting issue and one of the key challenges in the civil engineering field. Cavities forming under earth structures are problematic in the field of geotechnical engineering and may lead to structural damage and loss of life and …
-
Estudo e aplicação do método dos elementos finitos a barragens de terra
Static, two-dimensional analysis of earth dams is conducted by the Finite Element Method, using isoparametric elements. A study of the method and element used is made and a computer program is developed. Comments on linear and non linear simulations of an earth dam construction are made; some …
-
Risk Assessment of Post-Fire Floods on Dams and Their Floodplains
… on civil infrastructures and residential zones. Earth dams are vulnerable to post-wildfire floods. The increased post-wildfire runoff volumes due to changes in soil characteristics and reduced vegetation could result in overtopping failure of an earth dam (dam-break scenario), and the …
-
Modelling and managing the effects of trout farms on Cape rivers
… areas, two used plastic portapools and the third earth dams. There was a substantial increase in the number of oligochaetes downstream of both 'portapool' farms and yet, despite being situated in the same sensitive river zone, this did not occur downstream of the farm that used earth dams. The …
-
Estudos pseudo-tridimensionais das tensões em galerias no interior de barragens de terra utilizando o método dos elementos finitos
… around buried concrete structures under earth dams. The study consisted of a pseudo-tridimensional analysis, using a two-dimension finite element program, and taking advantage of the plane strain conditions through the dam and buried structure axis. Two structures were analysed, around …
-
Simulação da construção e do primeiro enchimento do reservatório de barragens zonadas de terra e enrocamento pelo método dos elementos finitos
… to the static bidimensional analysis of Zoned Earth and Rock-fill Dams. The main objetive of this dissertation consists in the analysis of the behavior of Earth and Rock-fill Dams during construction and first filling of the reservoir. A brief revision of basic concepts of the FEM and how it is …
-
Percolação em barragens de terra em regime permanente e transiente com o método dos elementos de contorno
… analysis of the seepage process through an earth dam. The transient free surface flow during the fill-up and drawdown phases of a reservoir is of utmost importance in the analysis of embankment stability and to compute the internal drainage devices. A boundary element procedure for dealing …
-
An archaeological reconnaissance of the Lake Diefenbaker region in south central Saskatchewan
… of the construction of two massive rolled earth dams along the South Saskatchewan and Qu'Appelle Rivers. Once completed, the Gardiner and Qu'Appelle Arm dams, respectively, created a vast freshwater reservoir suitable for irrigation, the generation of electric energy, and recreation. At the …
-
Seismic Slope Stability: A Comparison Study of Empirical Predictive Methods with the Finite Element Method
… expected to be valid for granular slopes such as earth dams, embankments, or landfills built on a rigid base and with low fundamental periods (Ts<0.2).
-
The effects of drought on household food consumption: A case of Okahauyulu and Eeshoke villages in Engela constituency, Ohangwena region, Namibia
… harvest water during the rainy season, excavate earth dams which can be lined with trampolines, provision of diversified drought resistant seeds, conservation agriculture, and capacity building of households through subsided education.
-
Architecture of Acupuncture
… land-form between two 18 foot tall existing earth dams. The attitude of the Farm is a sensitive one in regard to the flat and quiet farming communities around it. The space the Fish Farm occupies cannot be seen unless from the roads which each run on top of the dams themselves. Two new …
-
Transient Seepage Analysis for Levees and Dams: Numerical and Monitoring Approaches
… into the transient impacts of flood loadings on earthen embankments was conducted. Two embankments were instrumented and monitored over a period of four years. One of these embankments was a levee located along the Mississippi River just north of Cairo, Illinois. The other embankment was part of …
-
Σεισμική απόκριση και αποτίμηση οριακής αντοχής χωμάτινων φραγμάτων
Η παρούσα διδακτορική διατριβή μελετά τη σεισμική απόκριση χωμάτινων φραγμάτων με απώτερο σκοπό την αποτίμηση της οριακής αντοχής τους. Οι αναλύσεις πραγματοποιήθηκαν συνολικά σε κώδικα APDL (ANSYS Parametric Design Language) του λογισμικού πεπερασμένων στοιχείων ΑΝSYS (ΑΝSYS 14.0). Το κεφάλαιο 1 …