Circles, squares and triangle are models with different domain sizes, as indicated in the figure (x × y × water depth on downgradient end of model, m; kariz length, m × kariz cross-section, m2).
Figure 3 shows the runtime in hours for the two models for lengths m = 0,…, 4. For m = 3 and m = 4 the time it takes to perform computations on the original model has been extrapolated from running the software for this model across 150 locations and multiplying by 40.
Considering that there are 1,695 parallel springs in the sleepers' lateral sides and that the model length is L = 9 m, the lateral stiffness of each spring can be calculated by Eq. (2): k_{{{text{h}}_-{text{spring}}}} = k_{{{text{h}}_-{text{ballast}}}} frac{L}{N} = 0. 5 8 40 7 1 {text{ kN}}/{text{mm}}, (2 where N is the number springs.
Open image in new window Fig. 5 Selection of the target single pile Table 1 Specifications of the analysis model pile Pile type Diameter (mm) Length (m) Unit weight (kN/m3) Elastic modulus (MN/m2) Poisson ratio Cast-in situ concrete pile 1000 15 24.5 29,580 0.2. Figure 6 shows the centrifuge facility in KAIST whose radius is 5 m, the model pile and measuring instruments.
Assume that a pattern consists of random words of length m generated according to the uniform Bernoulli model.
When we are extending a model m with a symbol α (eventually extracting a valid model mα), the column number of the last symbol in m, m [ length m ], is C(m [ length m ]), where C(m [ length m ]) ∈ {1,..., | C|}, and errors are still allowed, α can only be one of the symbols in the set, where corresponds to the subset of elements in Σ ' whose column is equal to C(m [ length m ])) + 1.
Half fracture length (m).
Lc Characteristic length (m).
