STRESS-DEFORMED STATE OF THE FOUNDATION OF HYDRAULIC STRUCTURES AT CONTROLLED COMPENSATION DISCHARGE

Nnumerical simulation of the process of injection of mortar into the thickness of the sandy base during the work on lifting and leveling the structure by the method of compensatory injection is carried out. An author's program has been developed that implements the finite element method (FEM) in a spatial formulation, taking into account the elastic-plastic nature of soil deformation, in which a special element in the form of a spheroid has been developed to describe the expanding area at the location of the injector, which changes its volume during the injection of mortar. During the verification of the program, the results of mathematical modeling were compared with the data of a physical experiment conducted by PhD Luca Masini from the University of La Sapienza (Rome, Italy). Numerical modeling of the stress-strain state of the base of the structure during repair work is considered by the example of lifting the foundation plate of the Zagorskaya PSPP-2. A number of tasks are being solved related to minimizing the number of injection columns, their location, the pitch of the cuffs, the selection of portions of the injected solution, taking into account the requirements for uniform lifting of the foundation plate in order to avoid additional cracking.

FINITE ELEMENT MODELLING OF INTERACTION BUILDING FRAME AND SLAB-PILE FOUNDATION

The article deals with the simulation of joint work of slab grillage and monolithic frame of the building by finite element method. The finite-element model is developed in the spatial formulation according to the complex scheme "upper structure-base plate-pile Foundation". The pile field was modeled by pliable rods with stiffness corresponding to the average draft of the pile field. Static and dynamic calculations are performed in the ING+software package. The results of the stress-strain state of the building frame elements demonstrate the correctness of this approach to take into account the compliance of the base.

Spatial Development of Bajo Tribal Residence in Wuring Village Maumere City

The spatial condition of the Bajo Tribe at Wuring village in Maumere Town is seen in the characteristics to residential community as early village of Muslim civilization and became the center of spreading out Islam in Sikka Regency. The historical background is as a review in exploring the formation’s community dwelling and geographical, social, cultural and economic aspects of the local community. This approach in research using phenomenology method with qualitative descriptive and naturalistic analysis that is describing and interpreting cultural record of Bajo Tribe in the form of description of history, map document, or artefact which in the form of physical resident of Bajo tribe society. The purpose of this study is to examine the spatial development that is formed in the form of spatial system to residential and the aspects underlying the spatial establishment of Bajo Tribe in Wuring village area as an effort to understand the initial condition until the formation of the present kampung hamlet. The result of this research gives general ilustration about occupancy spatial system including space organization, space orientation and space of hierarchy in micro scope of residence in the form of ma'bunda-ma'buli concept. On the other hand, it is also on environmental messo like form of spatial development shelter in the form of grow stage and diaruma stage because of the non-physical aspect underlined spatial formulation of dwellings to the area of ​​Wuring village.

MAXIMAL USING OF SPECIFICS OF SOME BOUNDARY PROBLEMS IN POTENTIAL THEORY AFTER THEIR NUMERICAL ANALYSIS

Some typical problems in the numerical analysis of certain types of boundary value problems of the potential theory in substantially spatial formulation are considered. On the basis of the integral equation method (IE) an approximate scheme of solving one model example is built and investigated. It is also considered that the doubly connected open surface where boundary conditions are set obtains the Abelian group of symmetry of the eighth order. This article shows how using the apparatus of the group theory it is possible to solve an initial problem by the help of the sequence of the eight independent IEs, where the integration is realized only on one of the congruent constituents of the surface. It creates the conditions for two parallel processes of problem solution in general. The collocation method for obtaining approximate values of needed “density of charge distribution” in the particular two-dimensional integral equations is used. To take into account the singular way of solving the problem in the circuit of the open surface the a posteriori method of error evaluation is created and the procedure of integrating clarification of solving the task in the mesh node is implemented. To prove the reliability and estimation of the technique efficiency the number of numerical experiments is carried out including the use of so called “plane” approximation of the examined spatial problem.

MEMORY BOOSTS COOPERATION IN THE STRUCTURALLY DYNAMIC PRISONER'S DILEMMA

In the conventional spatial formulation of the iterated prisoner's dilemma, only the results generated in the last round are taken into account in deciding the next choice. Historic memory of past iterations can be taken into account by featuring players by a summary of their previous winnings and choices. The effect of such a memory implementation when the players are allowed to follow a simple full-deterministic structurally coevolving dynamic is assessed in this work.

MEMORY BOOSTS COOPERATION

The standard spatial formulation of the iterated Prisoner's Dilemma is ahistoric (memoryless): i.e., only the results generated in the last round are taken into account in deciding the next choice. Historic memory can be implemented by featuring players by a summary of their previous winnigs and choices. Here we study the effect of limited trailing memory: only the last three iterations are recorded. The effects of full and discounted memory are assessed. It is concluded that this short-type memory stimulates cooperation.

THE EFFECT OF MEMORY IN THE SPATIAL CONTINUOUS-VALUED PRISONER'S DILEMMA

The standard spatial formulation of the Prisoner's Dilemma is a historic (memoryless, i.e. only results generated in the last round are taken into account in deciding the next choice), and binary (players are confined to fully cooperating or defecting). The spatial historic model admitting intermediate degrees of cooperation (fuzzy model) is studied in this work. Comparisons are made between the binary and fuzzy models. The effect of errors and discounting is also assessed.