Section 2.3 The steel detailing firm: A member of the construction team, discusses the variety of ways in which detailing firms contribute to the construction team. 2 standard deviations).Ĭapitalizing on the resources of steel detailing professionals by making them a member of the construction team." Assuming that the data is normally distributed about the mean vector, plot on the stereonet a "cone of confidence" that should contain over 90% of the data (i.e.
Plot the data as points on a stereonet, and plot the position of the best-fit vector. Determine the best-fit (mean) vector to this data set using the eigen vector method, and determine the standard deviation about the best-fit vector in degrees. The head of the mining company - a person well versed in statistics, but not in structural geology - informs you that contouring the data and "eyeballing" an average orientation is not good enough he wants a statistical determination of the average orientation of the data, and a statistical measure of the goodness of fit. You are a geologist employed by a consulting firm and your supervisor has assigned to you the task of analyzing the data for the mining company. The company wants to sink a mine shaft along the zone and therefore needs an average orientation determined from the data. Below is a set of measured orientations of a linear platinum-bearing zone collected by a mining company. Although the methods of analysis need not be the same, the Designer and the Checking Engineer should consult with each other to ensure that their calculated results are comparable. Major difference in design assumptions should be brought to the attention of the Designer. The design memorandum shall contain sufficient information detailing the assumptions made in the design to enable the Checking Engineer to carry out his own independent analysis and assessment and to make direct comparison between his own results and the Designer‟s design. The Checking Engineer would require documents including the design memorandum/ manual, drawings, specifications, ground investigation results and other relevant design information for him to carry out the checking. It is incumbent upon the Checking Engineer to establish the validity of the design assumptions independently. (4) The independent design checking for Category III structures shall be carried out without reference to the design calculations.