Sample preparation method and compaction device for immature soil base materials
A technology of base material and raw soil, applied in the field of civil engineering and building structure, can solve problems such as low efficiency, tediousness, and large test influence, and achieve the effect of good density, simple manufacturing process, and good overall deformation
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[0035] Example 1:
[0036] see figure 1 Taking a 150mm×150mm×150mm steel mold as an example, the pressing device for raw soil-based materials includes a test bench 1. The test bench 1 is set up with four columns perpendicular to the plane in four directions. The test bench 1 runs from top to bottom. The first platform 11 and the second platform 12 are arranged side by side in the horizontal direction. The four uprights pass through the first platform 11 and the second platform 12 and are respectively fixed by the anchoring member 13. The anchoring member 13 is a bolt member for tightening and fixing. A jack 2, a mold 3 and a pressing column 5 are arranged coaxially on the platform 12 from bottom to top in the vertical direction, and the top of the pressing column 5 is tightly pressed against the first platform 11. A blocking hoop 4 is also coaxially arranged between the mold 3 and the pressing column 5. The top end of the blocking hoop 4 is sleeved outside the pressing column 5, ...
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[0039] Example 2: Comparison of sample preparation methods
[0040] Taking a cube steel mold of 150mm×150mm×150mm as an example, the compressive strength of the cubic raw soil-based material specimens prepared by three different production methods: traditional hammering method, press compaction method and jack compaction method Experimental analysis, study the size and appearance of the specimen after molding, the density of the specimen after molding, and the compressive strength of the specimen after 28 days. Observe the test failure form and the location of the cracks, study the stress distribution state, and conduct statistical analysis and stability analysis on the data. Research the commonalities and differences of the three manufacturing methods, and find out a more suitable method for manufacturing cube specimens of raw soil materials.
[0041] Traditional hammering method:
[0042] Place the cube steel mold flat on a solid ground, install the protective tube, apply a thin ...
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