Sludge curing device and method combining vacuum grouting and resistance heating

Abstract

The invention discloses a sludge solidification device combined with vacuum grouting and resistance heating, which comprises a grouting pipe, a drainage board, a horizontal drainpipe, a resistance wire, a horizontal grouting conduit, a grouting hose, a grouting pump and a curing agent slurry storage There are multiple grouting pipes, and each grouting pipe is formed with a number of grouting holes, and the multiple grouting pipes are respectively connected with the horizontal grouting conduit, and a drainage plate is set between two adjacent grouting pipes , a plurality of drainage boards are respectively connected with the horizontal drainage pipe, the horizontal drainage pipe is connected with the external drainage pipe, the resistance wire is wound on the drainage board, the resistance wire is electrically connected with the power supply arranged in the external power supply control box, and the horizontal slurry delivery conduit passes through the The slurry hose is sequentially connected with the slurry delivery pump and the slurry storage tank of the solidifying agent; the invention also discloses a sludge solidification method using the device, which is suitable for sea flat sludge, shallow soft ground or deep soft ground for land reclamation, and improves sludge Improve the degree of consolidation and reduce the consolidation time, so that the solidified sludge has a certain bearing capacity.

Description

technical field [0001] The invention relates to a device and method for consolidation treatment of soft silt foundation, in particular to a device and method for solidifying silt by vacuum grouting combined with resistance heating, and belongs to the technical field of soft foundation treatment. Background technique [0002] Soft foundations such as tidal silt and dredging silt in coastal areas have the characteristics of high water content, low shear strength, high compressibility, bearing capacity and long consolidation time, so the foundation settlement is large, and most of them are uneven settlement, which is easy to The wall of the upper building or structure is cracked and overturned. For the soft mud foundation, the usual method is to use the vacuum preloading method and the grouting method. The vacuum preloading method takes 3 months to consolidate, and the consolidation degree is about 80. %, the bearing capacity of the treated silt soil soft foundation is about 80...

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Problems solved by technology

[0002] Soft foundations such as tidal silt and dredging silt in coastal areas have the characteristics of high water content, low shear strength, high compressibility, bearing capacity and long consolidation time, so the foundation settlement is large, and most of them are uneven settlement, which is easy to The wall of the upper building or structure is cracked and overturned. For the soft mud foundation, the usual method is to use the vacuum preloading method and the grouting method. The vacuum preloading method takes 3 months to consolidate, and the consolidation degree is about 80. %, the bearing capacity of the treated silt soil soft foundation is about 80kPa; alth

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