路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2012年
2期
101-104
,共4页
宋明健%吴章伦%郭焱%周丕健
宋明健%吳章倫%郭焱%週丕健
송명건%오장륜%곽염%주비건
深基坑%降水%支护%方案
深基坑%降水%支護%方案
심기갱%강수%지호%방안
deep foundation pit%dewatering%support%scheme
上河苑二期深基坑，开挖面大，深度深，且开挖后将形成最大高差约6．3m的两条孤立土柱带。其降水措施以及支护方案的有效性，直接关系着基坑的安全与稳定，也对后续工程的顺利开展具有重要意义。结合工程地质条件，对该基坑降水方案的分析和计算进行了介绍；选择典型剖面，探讨了不同开挖深度和位置处的支护具体方案；实践验证，该方案满足基坑变形控制的要求。
上河苑二期深基坑，開挖麵大，深度深，且開挖後將形成最大高差約6．3m的兩條孤立土柱帶。其降水措施以及支護方案的有效性，直接關繫著基坑的安全與穩定，也對後續工程的順利開展具有重要意義。結閤工程地質條件，對該基坑降水方案的分析和計算進行瞭介紹；選擇典型剖麵，探討瞭不同開挖深度和位置處的支護具體方案；實踐驗證，該方案滿足基坑變形控製的要求。
상하원이기심기갱，개알면대，심도심，차개알후장형성최대고차약6．3m적량조고립토주대。기강수조시이급지호방안적유효성，직접관계착기갱적안전여은정，야대후속공정적순리개전구유중요의의。결합공정지질조건，대해기갱강수방안적분석화계산진행료개소；선택전형부면，탐토료불동개알심도화위치처적지호구체방안；실천험증，해방안만족기갱변형공제적요구。
The deep foundation pit of Shangheyuan Phase Ⅱ has large excavation face and depth and two isolated soil column area with the maximum height difference about 6. 3m will be formed after excavation. The effectiveness of dewatering measures and support scheme concerns the safety and stability of the foundation pit directly and means a lot to the following engineering activities. Combined with the geological conditions, the analysis and calculation of the dewatering scheme for the foundation pit are introduced ; selected typical profile section, the specific support schemes with different excavation depth and at different places are discussed. It is demonstrated that the requirement of deformation control for foundation pit is satisfied.
