CAJ | 학술논문

昆明龙泉湾广场基坑开挖深度约10m，周边环境较复杂，处于软土区域，靠近基坑底部为易扰动含粉土圆砾和含粘性土砾砂，地下水位埋深浅。依据地质条件和地形特点，对该基坑分段采用SMW工法结合二道可回收旋喷扩孔锚索支护、悬臂双排桩支护、内支撑＋预留土反压的半逆作法支护（ SMW工法结合一道砼斜支撑）等多种支护型式。基坑施工监测结果表明，支护方案安全可靠，可供同类工程借鉴。
곤명룡천만엄장기갱개알심도약10m，주변배경교복잡，처우연토구역，고근기갱저부위역우동함분토원력화함점성토력사，지하수위매심천。의거지질조건화지형특점，대해기갱분단채용SMW공법결합이도가회수선분확공묘색지호、현비쌍배장지호、내지탱＋예류토반압적반역작법지호（ SMW공법결합일도동사지탱）등다충지호형식。기갱시공감측결과표명，지호방안안전가고，가공동류공정차감。
The excavation depth of Longquanwan square foundation pit in Kunming is about 10m.The surrounding environment is relatively complex .It is in soft soil area , and there are easy disturbance bear-ing-silt pebbles and bearing-clayey soil gravelly sand near the bottom of the foundation pit .The groundwa-ter level is buried shallowly .According to the geological conditions and topographic feature , multiple types of supporting forms ,such as SMW construction method combining with two recoverable rotary chur-ning chambering anchor cable supportings , double cantilever piles , and inner support +half reverse building method of reserved soil back pressure ( SMW combining with one concrete diagonal bracing ) are adopted sectionally .The monitoring results show that the supporting schemes is safe and reliable ,and it can provide the reference for other similar projects .