High-dosage lime stabilized soil subbase layer construction method

A construction method and high-dose technology, applied in roads, roads, buildings, etc., can solve the problems of shortening the service life of highway design, unreasonable soil treatment, slow construction progress, etc., to achieve fast construction, clear steps, and ensure construction quality. Effect

Inactive Publication Date: 2012-12-26
李应芝
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Problems solved by technology

At present, in the construction of this step, there are problems such as slow construction pro

Method used

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Embodiment Construction

[0012] The construction method of the high-dose lime-stabilized soil base course of the present invention comprises eight steps of construction preparation, measurement and lofting, material preparation, application of soil cloth ash, mixing, shaping, rolling and health preservation, and its specific parameters and operations are as follows:

[0013] 1) Construction preparation. Prepare the lower bearing layer. The surface of the lower bearing layer of lime-stabilized soil should be flat and compact, and its elevation, width, and transverse slope meet the design requirements, and there are no loose materials and weak spots.

[0014] 2) Measurement stakeout. Restoring the centerline piles, and setting up indicator piles on the edges of both sides to mark the loose laying elevation and design elevation of the edge of the lime-stabilized soil layer.

[0015] Material preparation step; when preparing lime, first digest the lime for 7-10 days, and then sieve it with a 10mm sieve, ...

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Abstract

The invention relates to a treatment method for treating roadbed, in particular to a high-dosage lime stabilized soil subbase layer construction method which is fast in construction speed, high in achieving quality, and stable in soil subbase layer. The high-dosage lime stabilized soil subbase layer construction method includes eight steps of construction preparation, measuring and setting out, material preparation, soil arrangement and ash distribution, stirring, reshaping, grinding and activity preservation, wherein the step of material preparation includes lime preparation and soil preparation. When lime is prepared, the lime is firstly digested for 7-10 days and then sieved through sieving holes of 10 millimeters, and the water usage for digestion is 500-800 kilograms/ ton. When soil is prepared, the maximum size of the particle of the soil is not larger than 15 millimeters, and the quantity passing through sieving holes of 5 millimeters is larger than 60%. In the step of stirring, a stabilized soil mixer is matched with a ploughshare for stirring, and stirring depth is within the limit of infiltrating the subbase layer. When in construction, water content of the materials is detected timely, and the materials are watered when the water content is lower than -2% of the optimum water content and aired when the water content is larger than +2% of the optimum water content.

Description

technical field [0001] The invention relates to a treatment method for highway subgrade, in particular to a construction method for high-dose lime stabilized soil subbase. Background technique [0002] Highways refer to roads connecting cities, villages, villages and villages, and between industrial and mining bases, built in accordance with national technical standards, and approved by the competent highway department. However, trails naturally formed in fields or rural areas are not included. Roads that are mainly used for automobiles and have certain technical standards and facilities are called highways. Highways are roads approved by the competent highway department, including expressways, first-class roads, second-class roads, third-class roads, and fourth-class roads. According to the administrative level, roads can be divided into five levels: national roads, provincial roads, county roads, and township roads (referred to as national, provincial, and township roads...

Claims

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Application Information

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IPC IPC(8): E01C3/04
Inventor 李应芝
Owner 李应芝
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