Study on the Factors Affecting the Quality of Trench Cutting Remixing Deep Wall in Qingdao Area

Table 2

TRD main design parameters.

Divisions	Description	Standards
Cutting fluid	Specific gravity of unsolidified mud
	TF value of unsolidified mud
	Material	Bentonite
Cement slurry	Injection rate deviation	≤10%
	Cement soil ratio	20%
	Water cement ratio	1.2~1.4
	Material	P.042.5 Portland cement
	Grouting pressure	2 MPa
	Fluidity	150 mm~280 mm
Machine parameters	Machine type	LSJ60
	Horizontal excavation speed	<0.625 m/h
	Vertical mixing speed	>60 m/min
QC	28 days unconfined compressive strength	>0.8 MPa
	28 days permeability
	Vertical deviation	<1/250
	Positioning deviation	±25 mm
	Wall thickness deviation	±30 mm
	Wall depth deviation	±30 mm