| 粘塑性软岩支护方法讨论 |
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| 引用本文： | 李锡润. 粘塑性软岩支护方法讨论[J]. 东北大学学报(自然科学版), 1986, 0(4) |
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| 作者姓名： | 李锡润 |
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| 作者单位： | 东北工学院井巷教研室 |
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| 摘 要： | 本文根据现场实测位移-时间曲线,建立一种新的围岩粘塑性流变模型。该模型由二个虎克体,一个牛顿体和一个塑性体组成。常见的Poynting-Thomson体仅是它的一个特例。利用该模型的物态方程解出了静水压力下圆形巷道的支护反力和巷道周边位移。指出了粘塑性软岩地压的基本特征和支护方法。
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| 关 键 词： | 粘塑性流动 软岩支护 |
Shaft Supporting Methods of Viscoplastic Soft Rock Mass |
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| Li Xirun. Shaft Supporting Methods of Viscoplastic Soft Rock Mass[J]. Journal of Northeastern University(Natural Science), 1986, 0(4) |
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| Authors: | Li Xirun |
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| Abstract: | Based on an in-situ measurement of time dependence of displacement in tunnel, a new model, describing the rheologic behavior of viscoplastic country rock is developed. The model consists of two Hookean solids, a Newtonian fluid and a plastic body, and it is shown that the well-known Poynting-Thomson body is just a particular case of it. With the state equation of the model introduced, the reaction of support in a circular cross-sectional tunnel and peripheral displacement of tunnel are solved under conditions of hydrostatic pressure. Basic characteristics of the inherent field stress exerting to viscoplastic country rock are indicated with several shaft supporting methods recommended, ie. the telescopic shield, rigid lining, soft rock strengthening by grouting or using anchorge bars. |
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| Keywords: | viscoplastic flow soft rock supporting |
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