【摘要】：隨著新奧法施工技術(shù)的廣泛應(yīng)用,圍巖的動(dòng)態(tài)變形越來越受到人們的關(guān)注。目前,我國(guó)主要是通過監(jiān)測(cè)典型節(jié)點(diǎn)的位移來判斷圍巖變形的穩(wěn)定性。典型節(jié)點(diǎn)的變形并不能代表整個(gè)圍巖斷面的變形狀況,該方法存在一定的缺陷,因此提出采用隧道斷面面積變化的方法來評(píng)價(jià)圍巖變形的穩(wěn)定性。采用突變理論數(shù)學(xué)方法計(jì)算Ⅳ級(jí)和Ⅴ級(jí)圍巖在不同埋深條件下斷面面積的變化值,得出面積變化的極限值,最終以此極限值作為判定圍巖變形穩(wěn)定的判據(jù)。
[Abstract]:With the wide application of the new Austrian construction technology, people pay more and more attention to the dynamic deformation of surrounding rock. At present, the stability of surrounding rock deformation is judged by monitoring the displacement of typical nodes in China. The deformation of typical joints does not represent the deformation of the whole surrounding rock section, and the method has some defects. Therefore, the method of tunnel cross-section area variation is proposed to evaluate the stability of surrounding rock deformation. The catastrophe theory mathematical method is used to calculate the variation value of cross section area of grade 鈪，

本文編號(hào)：2151591