CAJ | 학술논문

新奥法隧硐施工法的精髓就是允许围岩适度变形, 对围岩初始应力部分释放, 在产生大的变形前及时用柔性支护防护进行约束, 形成承载环, 充分利用围岩的自承能力, 大大减少支护工作量, 因此, 对围岩的允许适度变形的把握在硐室设计和施工中就尤为重要. 硐室施工过程中对岩体进行变形监测, 分析得出围岩变形规律, 对硐室的支护方案设计和支护时机把握起到积极作用. 收敛变形是各种监测方式中最简单和最直接的方式, 能直接反应出变形规律, 也是目前隧硐施工中应用最广的一种监测方式. 通过对硐室收敛变形监测结果进行处理, 利用EXCEL软件分析变形量、变形速率与时间、掌子面推进距离之间的关系, 寻找出围岩的收敛变形规律, 指导硐室支护设计和施工.
신오법수동시공법적정수취시윤허위암괄도변형, 대위암초시응력부분석방, 재산생대적변형전급시용유성지호방호진행약속, 형성승재배, 충분이용위암적자승능력, 대대감소지호공작량, 인차, 대위암적윤허괄도변형적파악재동실설계화시공중취우위중요. 동실시공과정중대암체진행변형감측, 분석득출위암변형규률, 대동실적지호방안설계화지호시궤파악기도적겁작용. 수렴변형시각충감측방식중최간단화최직접적방식, 능직접반응출변형규률, 야시목전수동시공중응용최엄적일충감측방식. 통과대동실수렴변형감측결과진행처리, 이용EXCEL연건분석변형량、 변형속솔여시간、 장자면추진거리지간적관계, 심조출위암적수렴변형규률, 지도동실지호설계화시공.
The essence of the NATM tunnel construction method is to allow the rock moderate deformation the chamber initial stress release ,resulting in large deformation of timely with flexible support protected constraints , the formation of bearing ring ,make full use of the surrounding rock bearing by itself ,greatly reducing the workload of support .Therefore , it is very important to design and construct the surrounding rock of the surrounding rock .The deformation monitoring of rock mass is very important in the construction process .The deformation law of the surrounding rock is analyzed .Conver-gence deformation is the most simple and direct way in various monitoring methods ,which can directly reflect the deform-ation law,and is also the most widely used in tunnel construction in this paper ,the convergence of chamber deformation monitoring results are processed using the Excel software analysis of deformation and deformation rate and time ,on the tunnel face advance distance between the relationship ,find out the convergence of surrounding rock deformation law and guiding chamber ,for guiding design and construction .