Method for reinforcing side slope containing mudded intercalation

Abstract

The invention relates to a method for reinforcing a side slope containing a mudded intercalation in the technical field of side slope engineering. The method comprises the following steps that firstly, pre-drilling construction is conducted on the side slope, a vertical waveguide tube and a grouting tube are fed into a drilled hole at the same time, an exhaust pipe is reserved at a hole opening and internally and externally communicated, and water glass and cement paste are mixed and poured into the hole opening to form a sealing layer. After the sealing layer is finally solidified, a microwave generating device is started to heat a red layer mudded intercalation around the drilled hole through the vertical waveguide tube. Finally, a grouting pump is started, proportioned grouting liquid is grouted into the drilled hole through a high-pressure rubber pipe and a grouting pipe, the grouting pipe is pulled out after grouting is completed, the grouting liquid and the slope soil body are solidified, and grouting of the next drilled hole is conducted after the design standard is met. According to the method, microwave irradiation and grouting reinforcement are combined, the red layer mudded intercalation around the drilled hole is rapidly heated through microwaves in advance, the mechanical property and porosity of the red layer mudded intercalation are enhanced, follow-up grouting is easier to control, and the slope grouting reinforcement efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of slope engineering, and in particular relates to a reinforcement method for a muddy interlayer slope. Background technique [0002] As a key development area, the central and western regions of my country are bound to face a lot of slope stability problems in the construction of roads and railways due to the numerous mountainous areas. As a common weak structural surface in rock mass, muddy interlayer has engineering characteristics such as expansibility, high clay content, and easy disintegration when exposed to water. Under the action of rainfall, earthquakes, external disturbances and other factors, it is easy to soften , causing slope instability. Therefore, how to reinforce the muddy interlayer slope is a problem that must be solved in the process of foundation construction and operation. [0003] At present, the commonly used slope reinforcement methods can be divided into retaining structures, dra...

AI Technical Summary

Problems solved by technology

Among them, soil modification mainly includes grouting reinforcement and roasting reinforcement. However, grouting reinforcement still has disadvantages such as difficult injection of grout, difficulty in determining the reinforcement range, and difficulty in evaluating the reinforcement effect. , the injection of slurry will temporarily reduce the strength of the muddy interlayer and increase the risk of landslides

The roasting method is rarely used in practical engineering due to its disadvantages such as high energy consumption, large pollution, and low efficiency.

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