Transcription of COMPACTION GROUTING CONSENSUS GUIDE
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COMPACTION GROUTING CONSENSUS GUIDE
COMPACTION GROUTING CONSENSUS GUIDE COMPACTION GROUTING CONSENSUS GUIDE Committee of the Geo-Institute of the ASCE Copyright of the COMPACTION GROUTING GUIDE Committee of the Geo-Institute of the ASCE 20077 August 2007 DRAFT ABSTRACT COMPACTION GROUTING is a viable technique for densifying loose fills and native soils that permit adequate fluid pressure dissipation. The process involves injecting a stiff mortar-like grout into the ground to displace and compact the surrounding soil. During injection, the grout displaces the soil and forces the soil grains into tighter packing, expelling air and/or water out of the effected area, and reducing pore volume. At the end of injection the ground should contain stiff grout masses and densified soil. This GUIDE is specifically focused on applications of COMPACTION GROUTING where densification of the soil surrounding the grout mass is a primary objective of the ground improvement.
Figure 3-2 Updated envelope of preferred aggregate gradation (Warner et al., 1992) 14 Figure 4-1 Typical split spacing hole pattern 18 Figure 4-2 Stage-up grouting procedure 18 Figure 4-3 Stage-down grouting procedure 19 Figure 4-4 Batch mixing setup using pump with “horizontal paddle mixer” 20
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