摘要
针对圆形基坑及坑壁上土下岩的双层地质结构特点,利用灌注极作为上部支护骨架,结合整体护壁作为筒体结构挡土、止水,省去了临时支撑,减小桩端进入坚硬岩石的深度,下部采用逆作法圆筒支护,在中等岩溶发育地区深基坑施工中取得成功,应用价值较高。
According to the geological characteristics of circle foundation pit and pit wall with soil in upper
stratum and lava in fower one.caisson pile is utilized as upper support frame which combines with the entire
wall to form barrel structure for soil retaining and water proofing. Therefore. temporary support is avoided and
depth the pile thrusts into hard rock reduced. And reverse constructed barrel support is adopted at the lower
part. With successful application to deep foundation. pit construction in medium developed lava region, it is of
high application value.
出处
《建筑技术》
北大核心
2004年第5期350-352,共3页
Architecture Technology
关键词
深基坑
支护
逆作法
护壁
deep foundation pit
bracing
reverse construction method
plntectiing wall
