CAJ | 학술논문

近接隧道施工过程中面临地质条件复杂、围岩扰动较大等诸多问题，合理施工方法的研究极其必要。以从莞高速新建走马岗公路隧道上方穿越东深供水隧洞工程为背景，首先，结合现场振动安全的施工要求，采用数值计算提出交叉段合理施工工法。同时，在交叉段施工过程中，对在建隧道的围岩压力、初期支护结构的受力情况以及既有供水隧洞的断面收敛等进行了实测，结果表明：在建隧道的围岩压力10 d内基本稳定，拱腰位置围岩压力较大，右侧拱腰最大为0.2 MPa，之后缓慢减小并趋于稳定。既有东深供水供水隧洞内安全监测数据表明：断面收敛及混凝土应变均相对较小，在安全范围之内。研究成果与方法可为类似工程提供参考。
근접수도시공과정중면림지질조건복잡、위암우동교대등제다문제，합리시공방법적연구겁기필요。이종완고속신건주마강공로수도상방천월동심공수수동공정위배경，수선，결합현장진동안전적시공요구，채용수치계산제출교차단합리시공공법。동시，재교차단시공과정중，대재건수도적위암압력、초기지호결구적수력정황이급기유공수수동적단면수렴등진행료실측，결과표명：재건수도적위암압력10 d내기본은정，공요위치위암압력교대，우측공요최대위0.2 MPa，지후완만감소병추우은정。기유동심공수공수수동내안전감측수거표명：단면수렴급혼응토응변균상대교소，재안전범위지내。연구성과여방법가위유사공정제공삼고。
More and more cross tunnels are facing complicated geological conditions and significant disturbance of surrounding rock,and it is quite necessity to research reasonable construction methods for tunnels. Based on the project of Zoumagang highway tunnel passing through upon Guangdong Yuegang water supply tunnel. Firstly,the construction method was numerically simulated for safety and construction sequences have been suggested according to vibrate speed control criterion for DWSS tunnel. Meanwhile,the ground pressure of surrounding rockmass of primary tunnel support and section convergence of existing tunnel were monitored. The field measurements show that at the intersection of two tunnels,the surrounding rock pressures of excavating tunnel achieved stability in 10 days basically. And the maximum ground pressure was 0.2 MPa and appeared at the hance of the tunnel and then decreased to a stable value slowly. The convergence and concrete strain of the water supply tunnel were relatively little. The research results showed that this construction method was safe and reliable. The achievements from the research work will benefit work can provide reference for similar projects.