Grouting reinforcement construction method and earth surface construction method

Abstract

The invention relates to the field of buildings, in particular to a grouting reinforcement construction method and an earth surface construction method. The earth surface grouting reinforcement construction method comprises the following steps that grouting is conducted in a plurality of grouting holes in a hole-skipping grouting mode; and in the grouting process, curtain grouting is conducted on the grouting holes located on the periphery firstly, and then grouting is conducted on the internal grouting holes. Through adjustment of grout and the grouting sequence, pertinence is achieved on the grouting range, and the grouting quality is easy to ensure. The grouting reinforcement construction method is not limited by the operation space, by increasing resource commitment, tunnel excavation and earth reinforcement can be subjected to parallel construction, a bad geological section can be continuously and quickly passed, and the construction period is easy to ensure. The methods are suitable for tunnel construction of a pebble bed where the particle diameter is simplex, and no cementing material exists, and the methods are also suitable for construction of fill areas of manual backfill soil dirt such as a gobi material. The difficult problems of the cementing-free rockfill material area construction technology and construction of the fill areas of the manual backfill soil dirt such as the gobi material are solved.

Description

technical field [0001] The invention relates to the construction field, in particular to a grouting reinforcement construction method and a surface construction method. Background technique [0002] The construction of urban rail transit in artificially developed cities will inevitably encounter artificially generated adverse geological bodies, and the uncemented rockfill area is one of them. Unbonded rockfill areas are usually caused by directly backfilling borrow pits with Gobi materials, and are widely distributed in cities in the Gobi region. And due to irregular management, the engineering data of the backfill pit is often missing, and the engineering survey cannot achieve high accuracy, so there is a risk of engineering accidents in the construction process of the uncemented rockfill area. Contents of the invention [0003] The object of the present invention is to provide a grouting reinforcement construction method and a ground surface construction method, which a...

AI Technical Summary

Problems solved by technology

And due to irregular management, the engineering data of the backfill pit is often missing, and the engineering survey cannot achieve high accuracy, so there is a risk of engineering accidents in the construction process of the uncemented rockfill area

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