Safe construction method applied to strong structure soft soil by preloading method

Abstract

The invention relates to a safe construction method applied to strong structure soft soil by a preloading method in the technical field of constructional engineering. The method includes the steps: firstly, first stage geological survey including the operations of classifying soil horizons, finding out the position of a permeable layer, the type of groundwater and the state of water source supplement, setting soil parameters by geotechnical tests and making a summary listing of result of geotechnical tests; secondly, the construction of plastic water discharge plates and sand cushion layers of the first stage; thirdly, middle stage geological survey determining the disturbing degree of the construction of the plastic water discharge plates of the first stage on lower soil; fourthly, confirmation of construction parameters settling the schedule of later stage embankment preloading according to the relationship of the increase of soil strength and the degree of consolidation; and fifthly, execution of construction of embankment preloading according to the construction schedule determined in the fourth step, and finally road surface pavement is carried out, thereby accomplishing the entire embankment construction. The method of the invention is simple, the security of the construction can be greatly increased, and the time limit for a project can be shortened to the utmost extent.

Description

technical field [0001] The invention relates to a construction method in the technical field of construction engineering, in particular to a safe construction method using a surcharge preloading method on strong structural soft soil. Background technique [0002] At present, in order to increase the construction speed and ensure the safety of the project when building embankments on soft soil foundations, the commonly used methods are preloading methods, including heap preloading methods and vacuum preloading methods. The surcharge preloading method is widely used in our country because of its convenient construction and reasonable cost. The traditional surcharge preloading method is to firstly drive plastic drainage boards into the soft soil foundation; then, lay a sand cushion on the soft foundation to form a horizontal drainage channel; Arrange the construction schedule according to the consolidation of the soft soil foundation, and repeat the loading until the design el...

AI Technical Summary

Problems solved by technology

However, the code does not provide specific guidance on preloading construction techniques for embankments built on strong structural soft soil foundations, and it is not appropriate to use traditional preloading methods for construction on strong structural soft soil foundations Yes, not only the construction schedule is unscientific, but also very unsafe in the case of tight construction schedule

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