A kind of polymer grouting to strengthen the anti-settling high embankment to widen the roadbed

A polymer and anti-settlement technology, which is applied in roads, roads, infrastructure engineering, etc., can solve problems such as slope slides and subgrade lateral slippage, and achieve anti-slide, effective slope protection, and stable joints Effect

Active Publication Date: 2018-07-03
合肥庐阳科技创新集团有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a potential sliding surface will be formed after excavating the steps, which may cause lateral sliding of the widened part of the subgrade;
[0006] 3. Slope landslides: After the filling of new embankments is completed, for those with high slopes or large slopes, the slope protection measures should not be prone to landslides immediately

Method used

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  • A kind of polymer grouting to strengthen the anti-settling high embankment to widen the roadbed
  • A kind of polymer grouting to strengthen the anti-settling high embankment to widen the roadbed
  • A kind of polymer grouting to strengthen the anti-settling high embankment to widen the roadbed

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Embodiment 1

[0045] The high polymer grouting in this embodiment to strengthen the subsidence and widen the subgrade is implemented for the low embankment, and the low embankment refers to the embankment whose height is not greater than 1.5m.

[0046] Such as figure 1 As shown, for the low embankment, the interface between the old subgrade and the new subgrade is set as the slope interface 4a, the filling layer 1 is filled and compacted in layers according to the height of the embankment, and the geotechnical pipe network is laid on the top surface of the filling layer 1; The geotechnical pipe network is formed by grouting with polymer slurry to form the geotechnical pipe network 2a for grouting the filling layer, and the vertical filling layer reinforcement column 3a that penetrates the slope interface 4a and extends into the foundation; There is a road shoulder geotechnical pipe network extending on the subgrade, and the road shoulder geotechnical pipe network is formed by grouting with ...

Embodiment 2

[0056] In this embodiment, polymer grouting to reinforce anti-subsidence and widen the subgrade is aimed at general embankments or high embankments. General embankments refer to embankments whose height is between 1.5m and 18m, and high embankments refer to embankments whose height is not less than 18m.

[0057] Such as figure 2 As shown, for general embankment or high embankment: the interface between the old subgrade and the new subgrade is set as the step interface 4b, and the filling layer 1 is filled and compacted in layers according to the height of the corresponding step in the step interface 4b, forming various The filling layer is layered, and the geotechnical pipe network is laid on the top surface of each layer of filling layer and extended to the top surface of the corresponding layer of steps to form an interlayer geotechnical pipe network; for the interlayer geotechnical pipe network, the high polymer slurry is injected The grout forms the interlayer grouting ge...

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Abstract

The invention discloses a high polymer grouting reinforcement and anti-settlement broadened roadbed for a high embankment. The high polymer grouting reinforcement and anti-settlement broadened roadbed is characterized in that an earthwork pipe network is arranged and is a rectangular grid formed by PVC pipes and arranged in an array mode, and the PVC pipes in the rectangular grid communicate with one another; the earthwork pipe network is internally provided with upward-protruding grouting holes and exhaust holes and downward-protruding grout-flow holes; and the earthwork pipe network is laid in a fill stratum to form a fill stratum earthwork pipe network, high polymer grout is grouted into the fill stratum earthwork pipe network through the grouting holes to form a fill stratum grouting earthwork pipe network, and the high polymer grout is further grouted into vertical column holes formed in the fill stratum through the grout-flow holes to form vertical reinforcement columns. According to the high polymer grouting reinforcement and anti-settlement broadened roadbed, the transverse relation between a new embankment and an old embankment is enhanced, differential settlement is effectively controlled, and a new roadbed and an old roadbed are combined more stably and not prone to collapsing.

Description

technical field [0001] The invention relates to embankment widening in road widening and reformation, more specifically to a kind of high polymer grouting reinforcement anti-settling widening roadbed. Background technique [0002] With the continuous and rapid development of the national economy, the demand for road transportation in my country is increasing year by year, and the traffic flow of some existing roads has reached saturation. development needs. [0003] Roadbed widening is the main way to expand the capacity of existing highways. Due to the differences and interactions between the new and old subgrades, road diseases caused by widening of subgrades and overall pavement performance degradation are quite common in practical engineering, seriously affecting driving safety and comfort. In the prior art, the main problems of embankment widening include: [0004] 1. Differential settlement: Under the action of the old embankment's self-weight load, the settlement of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/00E01C3/04E02D3/12
CPCE01C3/00E01C3/04E02D3/12
Inventor 刘凯梁威王芳卢林李瑶张明伟谢泓州黄思路
Owner 合肥庐阳科技创新集团有限公司
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