摘要
反应力应变岩石力学,是岩石力学发展中的创新思路.地壳表层岩体在气温下降环境中会产生收缩,产生向表部的拉力,这是一反向力流,谓之反应力.它是一种匿动力,是一种暗能,在边坡区,它与岩体重力组合成向地表的水平拉张合力,并可导致节理扩张,以致产生脆弹性破裂,发生规模不等的振动,派生向外顶冲的波子力,成为重要的反应力因素.高边坡区岩体,一般处于三维受压的应力状态,但当气温剧降时,边坡区应力环境,就变为二维受压,一维受拉的拉张圆状态,甚至产生拉裂剪切的脆断破裂与灾变.高边坡区的应力态势,因气温规律性变迁与骤变,使反应力作用,呈现大、小、有、无的往复变化,所以高边坡区岩体的岩石力学特性和水力学特性,处于缓慢的累进破坏与不断劣化的衰变过程中.
The anti-stress-strain of rock mechanics is a new idea for the development of new parts of the origi- nal rock mechanics. The globe outer part rock mass has contraction when they are during down cold environ- ment and comes into pull flow to free surface that called anti stress. It is a hidden active force also a dark en- ergy. The anti-stress combining gravity turns into a level pull force to slope surface. The level pull force may cause the exfension of rock joint which may lead to elasto-brittle cracking. It loads to strong vibration and reverse stress. This is a hard element of anti-stress. Generally, the rock mass in the high slope is at the three- dimensional pressure state, but sometime it is at two dimensional pressurization with one dimensional exten- sion model whose mechanism of brittle fracture of rock mass takes place tensile-cohesion fracture by anti- stress; meantime, the vibration is caused by variation of temperature which is caused season and climate chan ges. The variation of temperature leads to variation of anti-stress effect. The anti-stress is from strong to weak or from existing to disappearance so that the mechanical character and hydraulic property of rock mass having slowly retrogressive decay.
出处
《三峡大学学报（自然科学版）》
CAS
2012年第6期44-47,共4页
Journal of China Three Gorges University：Natural Sciences
关键词
反应力应变
匿动力
暗能
拉平势场
波子力
累进衰变
拉裂脆断
anti-stress-strain
hidden active force
dark energy
level pull force
retrogressive decay
tensile-cracking
brittle fracture
