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生土结构营建时所取用的土料中常含有砾石,为了研究砾石含量对生土块材受力性能的影响,对掺入不同粒径、不同掺量砾石的10组共100个生土立方体试块进行抗压强度试验。通过试验结果对比,探讨了生土试块的破坏形态、破坏过程、荷载-位移曲线、抗压强度及变形能力。试验结果表明,砾石的粒径和掺量对生土立方体块材的抗压力学性能有一定影响,砾石掺量在5%以下较为合理,随掺量增加,生土块材抗压强度有所降低;随粒径增大,生土块材抗压强度有所增大,但砾石粒径不宜大于墙体厚度的1/3。
In order to study the influence of gravel content on the mechanical properties of raw soil blocks, 10 groups of 100 raw earth cube with different particle size and different amount of gravel were incorporated Test block compressive strength test. By comparing the test results, the failure morphology, failure process, load - displacement curve, compressive strength and deformation capacity of the soil samples were discussed. The results show that the gravel size and content have a certain impact on the compressive mechanical properties of the CBM cubes, and the gravel content below 5% is reasonable. With the increase of the dosage, the compressive strength of the CBM Decrease; With the increase of particle size, the compressive strength of raw soil blocks has increased, but the gravel size should not be greater than 1/3 of the thickness of the wall.