. Proceedings of the annual convention . otheses, such as increase of internal friction along potentialsliding planes, sealing of shrinkage cracks, waterproofing action, and increase of density,would seem to be of greater consequence. Apparently the pressure cells are registering pressures and variation in pressurefaithfully, showing impact and vibratory effects of traffic in detail. This will be the last report on this particular pressure cell installation. Anothermore extensive and more complete installation is proposed for the near future. Roadway and Ballast 1097 OL lO C o ■ooo 60 140 120
. Proceedings of the annual convention . otheses, such as increase of internal friction along potentialsliding planes, sealing of shrinkage cracks, waterproofing action, and increase of density,would seem to be of greater consequence. Apparently the pressure cells are registering pressures and variation in pressurefaithfully, showing impact and vibratory effects of traffic in detail. This will be the last report on this particular pressure cell installation. Anothermore extensive and more complete installation is proposed for the near future. Roadway and Ballast 1097 OL lO C o ■ooo 60 140 120 100 80 60 1 Record^d After .Recorded51 Grouting 1950 y^^ z?^ ^ A / /, lb / /y / / // / / // / ^ 0 Theoretical A // / ^ o /y / ^ A Recorded 1951 A jC/ / / o A / / / // / / A / / o / / / 3 4 5 6 Equivalent Vertical Pressure — PSi FIG. I - RELATIONSHIP OF VERTICAL PRESSURE TO LOAD 1098 Roadway and Ballast. Laterol Horizontal Pressure — PS RELATIONSHIP OF LATERAL HORIZONTAL PRESSURE TO LOAD Roadway and Ballast 1099
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Keywords: ., bookauthoramericanrailwayengine, bookcentury1900, bookdecade1900
