3D representation of the interpolated geothecnical

features from the rock massif of Itaipu – Function´s implementation in the

Geovisual software

Author: Luiz Henrique Faria de Carvalho

Professor: Jorge Kazuo Yamamoto

Presentation – Final Graduation Work 11/37

Location►Between the cities Foz do Iguaçú(SW

Brazil) and Ciudad del Este (Eastern Paraguai).

Objectives►Implement a add-on in the Geovisual

software that represents three-dimensionally any technical features necessary.

►Analise the Interpolation´s results from the studies presented by Patias(2010) and compare that patterns with the main structures of the rock massif.

Bibliography review►Interpolated data, provenient from the

Doctor PHD from Patias(2010), wich applied Multiquadric equations to the categoric variables: Wheathering, Fracturing, Consistence and RQD obtained through the Drilling process.

►Result: *.KO3 Archive (Geovisual format).

Methodology

►Source code´s building in the Delphi Platform.

►API of 3D Graphic Design: OpenGL, with the GLscene library.

Area of Study►Serra Geral Basalt (Guidicini & Campos,

1968)

Area of Study►Main Structures: Faults, fractures e

colunars disjunctions (Guidicini 1978)

Main Results

RQD►Multiquadric equations and ordinary

krigging defines a good geomacanic pattern of the rock massif (Deere 1967).

► Above 75%: - 4,072 blocks ( Multiquadric equations)

From a total equal to 5,898. 4,233 blocos ( Ordinary krigging) from a

total equal to 6,133.

RQD

RQD

RQD

Fracturing rate►Total number of blocks: 6350►Classification According to IPT (1984):

F1: 365 F2: 4854 F3: 862 F4: 234 F5: 35

Fracturing rate

Fracturing rate

Fracturing rate

Consistence rate►Total number of blocks: 6350►Classification according to Guidici

(1972): C1: 4959 C2: 1249 C3: 102 C4: 40

Consistence rate

Consistence rate

Consistence rate

Weathering rate►Total number of blocks: 6303►Classification according to IPT (1984):

A1: 4580 A2: 1506 A3: 140 A4: 52 A5: 25

Weathering rate

Weathering rate

Weathering rate

Weathering rate

Conclusions►Major weathered zones are distributed in

local pattern or inclinated plans, much less associated with the horizontal fracturing zones between Basalt Flows.

►Weathering and consistence shows higher values in planes with Eastern dip, that same pattern in not present in the fracturing zones, wich leaves us to conclude that the horizontal fracturing between flows is not the major Hidraulic conductive zone in the massif.

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Muito Obrigado!/ My most sincere Thanks!!