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甘肃省白银有色一建的二层教学楼于1966年建成。基础座落在回填土和砂岩两种不同的地基上,未采取适当措施,以至建成5年后基础下沉,后果严重。为保证教学楼的正常使用,我们采用了人工挖孔灌注桩法加固了基础,效果较好。具体做法如下。教学楼长45.5米。①～(16)轴
The two-story teaching building built by Baiyin Nonferrous Metals in Gansu Province was completed in 1966. The foundation is located on two different foundations: backfill soil and sandstone. No appropriate measures have been taken and the foundation will sink after 5 years of construction. The consequences are serious. In order to ensure the normal use of the teaching building, we have adopted a manual digging and pouring pile method to strengthen the foundation and have a good effect. The specific approach is as follows. The teaching building is 45.5 meters long. 1～(16) axis