长江科学院院报2017，Vol.34Issue(1)：151-154,4.DOI:10.11988/ckyyb.20150980
一种新型防沉降仪在直剪试验中的应用
Instrument of Preventing Structural Surface Settlement in Direct Shear Test
戴准 1时红莲 1方堃 1魏世豪 1武皇盛1
作者信息
- 1. 中国地质大学 武汉 工程学院，武汉 430074
- 折叠
摘要
Abstract
In the preparation of structural surface model, cement mortar is poured into the model, and then structur-al surface specimen is placed directly on the flowing cement mortar, resulting in uneven settlement of the specimen. However, the structural surface model must be horizontal in direct shear test;otherwise the structural surface is not perpendicular to the vertical force of shear apparatus, which means that normal stress is not perpendicular to shear stress, leading to big error or even completely wrong result compared with the actual situation. In view of this, an instrument of preventing structural surface model from settlement in direct shear test of rock mass is proposed. The instrument consists of an outer frame, active pole, clamping plate, hook, wing nuts and so on. In preparing struc-tural surface model, the specimen is clamped tight and fixed to secure it does not move, which avoids the uneven settlement and excessive subsidence.关键词
直剪试验/防沉降仪/岩体结构面模型/不均匀沉降/稳定性Key words
direct shear test/anti-settlement instrument/model of structural surface of rock/uneven settlement/stability分类
建筑与水利引用本文复制引用
戴准,时红莲,方堃,魏世豪,武皇盛..一种新型防沉降仪在直剪试验中的应用[J].长江科学院院报,2017,34(1):151-154,4.
