The reason for cracking of a building in an economical development area was analyzed and based on3 tests of grout injection, some parameters for consolidation of sand gravel ground by grout injection were suggested.

• 本文分析了某开发区房屋开裂的原因,通过三次灌浆试验,提出了砂卵石地基灌浆加固的有关技术参数。