Vacuum preloading and soil body surface solidification combined processing technique

Abstract

The invention discloses a vacuum preloading and soil body surface solidification combined processing technique. The vacuum preloading and soil body surface solidification combined processing technique includes the following steps that A, a vertical water discharging plate is arranged in a hydraulic reclamation mud / sludge / waste mud pit; the upper end of the vertical water discharging plate is connected with a water discharging pipeline; the water discharging pipeline is connected with the outside; sealing cloth coves the top of soil in a vacuum preloading water reduction pit and the water discharging pipeline; the edge of the sealing cloth is sealed through a sealing structure and soil; a vacuum pump is connected with the water discharging pipeline and used for pumping water in the soil; B, after vacuum preloading is finished, the vacuum sealing cloth on the surface is removed; C, curing agents are added to the soil body on the surface layer and evenly distributed in the soil body on the surface layer; D, after a period of time, the soil body is solidified. The soil body processed through the technique is high in dehydration rate, short in work period and higher in strength after the soil body is processed.

Description

technical field [0001] The invention relates to a combined treatment process of vacuum preloading and soil surface solidification. Background technique [0002] The traditional foundation treatment method for land reclamation generally adopts the vacuum preloading drainage method. By inputting mud into the mud pool, inserting a drainage board, and covering the vacuum cladding, the water is discharged outward under the suction of the vacuum pump. However, due to the filling soil The particles such as mud and mud are very fine, often causing severe silting of plastic drainage boards, which cannot be solved, and the treatment time is long, the strength of the treated soil and the bearing capacity of the foundation are low, resulting in low treatment efficiency, and the construction equipment cannot enter the site in time for construction . Contents of the invention [0003] In view of the deficiencies in the background technology, the technical problem to be solved by the pr...

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Problems solved by technology

[0005] The combined treatment method of sea reclamation and dredging filling soil, mud and silt provided by the present invention has the following beneficial effects: 1. Overcoming the insufficient bearing capacity caused by a single vacuum preloading treatment; 2. The bearing capacity of the foundation is significantly improved, compared with the current single The bearing capacity of the foundation treated by vacuum preloading can be increased by more than 2-5 times, and large-scale construction equipment can enter the site for construction as soon as possible after the surface soil is strengthened; , to prevent engineering piles from tilting and breaking; 4. Effectively reduce the later settlement of the foundation and reduce the later maintenance costs

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