9.1.1 Pressurizing equipment: jack, piezometer, oil pump, highpressure oil pipe, etc.9.1.2 Shear box: square or round shape, the ratio between sidelength or diameter of shear box and the maximum particle size ofroller compacted mass should be no less than...[继续阅读]

    8.2.1 The gross thickness of test position after compaction shall benot less than 2.0 m.8.2.2 The test position shall be flat on surface, and its length, widthor diameter shall be 3 times greater than those of bearing plate.8.2.3 In removing surface scum ...[继续阅读]

    9.2.1 The number of specimens in each direct shear test shall be 4to 5. Spacing between specimens shall be no less than their sidelength or diameter. The same group test shall be performed within thesame test block.9.2.2 In specimen preparation, ensure no...[继续阅读]

    8.3.1 Level the surface of test points before the installation ofbearing plate. In case of large surface fluctuation, fill it withfine-grained materials of limited maximum grain size. Thefine-grained materials added should be less than 1.5 cm thick forcla...[继续阅读]

    1.0.1 This specification is formulated to standardize the placementand roller compaction test on embankment materials of earth androckfill dams and corresponding testing methods, to improve theaccuracy of test results, and to promote the consistency andco...[继续阅读]

    5.6.1 The calculation of average settlement amount, averageaccumulative settlement ratio, water content, breakage rate andparticle analysis of each test block shall comply with provisions of3.5.5.6.2 The wet density and dry density of soils in the test pi...[继续阅读]

    7.1.1 Main equipment and apparatus(1) Water outlet bin: steel plate made, square frame shaped, havingcertain rigidity, meet the size requirement after specimen preparation,and height should be no less than 25 cm. Set up a water outlet 15 cmfrom the bottom...[继续阅读]

    3.5.1 The average settlement amount h and average accumulativesettlement ratio μ of each test block are calculated by Equation(3.5.1-1) and Equation (3.5.1-2):Where:Δh average settlement amount of a test block, mm.hiq =relative elevation of grid intersec...[继续阅读]

    9.5.1 Adjust horizontal displacement meter and measure its initialreading. Whether the axis of horizontal jack needs to be adjusted shallbe determined by settlement.9.5.2 Apply horizontal shear load in 8 to 10 levels based on themaximum estimated shear lo...[继续阅读]

    3.2.1 Several reference marks shall be arranged near compactionsite and beyond the scope of vibratory roller. Mark the compactionsite by drawing lines and survey the relative elevation of foundationbottom. The survey shall comply with relevant provisions ...[继续阅读]