In order to improve the bearing capacity of foundations,some new grouting methods and techniques have been employed in the consolidation grouting of backfilled sand-cobble stratum,including casing drilling,filling sand in a perforated pipe,protecting the wall with SM plant glue,forming a hole by diamond drilling and grouting in stages.
通过工程实践,在回填砂卵石层的固结灌浆中使用了新的灌浆方法和工艺,如:跟管钻进成孔、花管充砂、孔口封闭分段灌浆;SM植物胶护壁、金刚石钻具钻进成孔、孔口卡塞分段灌浆;斜孔潜孔锤跟管钻成孔、花管充砂、孔口封闭分段灌浆等。
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