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本文参照国外真三轴仪的发展情况,自行研制成一种由刚柔混合施加三向主应力的真三轴仪。该仪器结构简单、加工方便、易于操作,作用于土样六个面上的三个主应力施加均匀且边角应力干扰很小,该仪器可进行各种类型的真三轴试验,不仅适用于砂性土,也适用于粘性土,为土的三维性能及本构关系研究提供了有力的试验手段,本文还介绍该仪器的一般试验操作方法。
According to the development of the true triaxial apparatus in foreign countries, this paper develops a true triaxial apparatus which is made up of rigid and soft mixed three-way principal stress. The instrument has the advantages of simple structure, convenient processing, easy operation, uniform application of the three principal stresses acting on six surfaces of the soil sample and little interference of the corner stress. The apparatus can perform various types of true triaxial tests, Sandy soil, also applies to cohesive soil, provides a powerful test means for the study of soil three-dimensional properties and constitutive relations. This article also introduces the general experimental operation of the instrument.