Sliding sand slope reinforcing device

Abstract

A sliding sand slope reinforcing device relates to the technique of geological engineering and comprises grouting steel performed pipes and a protective net frame connected with the same. Each grouting steel performed pipe is provided with a conical bottom and provided with grouting holes, a rubber sleeve is sleeved on the grouting holes, a grouting piston is disposed inside each grouting steel perforated pipe, the outer diameter of each grouting piston is matched with the inner diameter of the grouting steel performed pipe, and a connector fixed on the outer wall of each grouting perforated pipe is used for being connected with the protective net frame. The sliding sand slope reinforcing device can be used to protect different types of sliding sand slopes, properties of slope-bottom sliding sand are changed by using the steel perforated pipes for grouting, and the stability of the sliding sand slope is improved.

Description

technical field [0001] The present invention relates to geological engineering technology. Background technique [0002] The sand slide slope refers to the conical slope formed by sand and debris formed by strong physical weathering on a high and steep slope, which slides under the action of its own weight and tectonic movement, and accumulates at the foot of the slope. Since the sand slide mainly develops in the alpine and less rainy areas, the sand slide has neither sliding surface nor rupture wall, and the accumulation is relatively uniform, and the accumulation slope is consistent with the natural angle of repose of the sand grains (detritus), and the general sand slide slope The sources are abundant and steep, and people's protection for the sand slide slope is mainly to block and avoid, but it is difficult to effectively control the source of the sand slide slope. Thereby, people wish to set up a kind of device of novel reinforcement slide sand slope always, can effec...

AI Technical Summary

Problems solved by technology

However, since sand slide slopes are generally developed in alpine regions, sand consolidation projects have many limitations, such as steep mountains, exposed bedrock, difficult growth of plants, low rainfall, and strong freeze-thaw effects in areas where sand slides develop, making it difficult to achieve sand consolidation.

(2) The material composition and structure of the sand slide, slope height, slope, etc. have a major impact on the stability of the slope, and the accumulation form at the slope toe and the degree of cementation of the accumulation body have a greater impact on the prevention and control project

[0005] But the more prominent problems in the current research are: (1) Many sand slide slope prevention and control measures are simply to block the sand slide or avoid the damage to the structure caused by the slide sand

Judging from the information currently available, previous studies on the prevention and control measures of sand slide slopes were mainly based on engineering experience, and there was a lack of systematic research on sand slide slopes. However, the stability influencing factors are seldom analyzed, which is obviously not enough for sand slide slope prevention and control engineering

(2) The research on the development characteristics of sand slide slope is not deep enough

Sand slide slopes have a large distribution range and high and steep material sources, and on-site investigation is difficult. The characteristics of most slide sand slopes mainly rely on indoor simulation tests to obtain parameters. Due to the differences between indoor simulations and on-site actual conditions, and the simplified test conditions, the test results are used It is not reasonable to design the blocking structure

(3) At present, most of the protection works on sand slide slopes are rigid structures, which are not effective in blocking the broken rocks rolling down on sand slide slopes, and the freezing and thawing operations are intense in alpine regions, which seriously damages the blocking projects

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