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三轴剪力仪不仅能比较准确地测定土的抗剪强度指标,还可用于测求土的侧压力系数、灵敏度和孔隙水压力等数据。但由于下列种种原因而往往限制了室内三轴仪的广泛应用,并使它实际上不能用到勘察工地。 1.现有三轴仪体大且重,结构复杂,需有电源,不仅安装调试麻烦,而且运输不便; 2.三轴仪试验周期较长,生产效率不高,仪器数量太少,不能满足大量试验需要; 3.三轴仪试验原理和操作技术较复杂,对应用者和操作者提出了较高的技术要求; 4.三轴剪力试验要求取样较多(一组试验需用3～4个土),一般钻孔难于满足要
The triaxial shear force meter can not only accurately measure the shear strength of soil, but also can be used to measure the lateral pressure coefficient, sensitivity and pore water pressure of the soil. However, due to the following reasons, it has often limited the wide application of indoor triaxial instruments and made it practically impossible to use survey sites. 1. The existing triaxial apparatus is large and heavy, complex in structure, requires power, and is not only troublesome to install and debug, but also inconvenient to transport; 2. Triaxial test cycle is long, the production efficiency is not high, and the number of instruments is too small to satisfy a large number of Test needs; 3. The triaxial test principle and operating technology are more complex, and impose higher technical requirements on the user and operator; 4. Triaxial shear test requires more samples (a set of tests requires 3 to 4 Soil, drilling is difficult to meet