所谓人工成孔石灰桩,就是先在地基中用大口洛阳铲成孔(孔径一般为15～20cm),随后向桩孔内灌注以生石灰为主掺一定比例粉煤灰的材料。首先,生石灰吸收土中的孔隙水,产生化学反应,变成有较高强度的桩;其次生石灰吸水体积膨胀,使桩间土挤密加固;再次,由于桩周围土中的孔隙水被吸收,含水量 The so-called artificial hole lime pile, is the first in the foundation with large mouth Luoyang spade shovel holes (pore diameter is generally 15 ~ 20cm), and then poured into the pile hole mainly lime with a certain proportion of fly ash material. First, quicklime absorbs the pore water in the soil and produces a chemical reaction, which turns into a pile with higher strength; second, the volume of water in the raw lime expands and the soil between the piles is compacted and reinforced; and again, the pore water in the soil around the pile is absorbed. Water content