Fast-Setting Polymer Grouting for Slope Erosion Control
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Solution Overview
Problem
Current methods lack an effective and efficient solution for rapidly controlling slope erosion and landslide, particularly in large-scale scenarios, as they are either incomplete or inefficient in construction time and stability.
Innovation Solution
A construction method involving fast-setting polymer grouting using dual-channel high-pressure jet grouting piles and polymer anti-scour layers, combined with vegetation re-greening, to reinforce and stabilize slopes, prevent erosion, and manage water infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional grouting methods are used for slope stabilization, then construction can be completed with standard materials and equipment, but construction time is excessive and soil reinforcement strength is insufficient
Solution Approach 1:
The patent changes the chemical parameters of grouting materials by using two-component fast-setting polymer slurries with rapid expansion ratios of 20:1, setting times under 10 seconds, and high injection pressures up to 18 MPa, transforming conventional slow-setting grouting into rapid soil reinforcement construction
Solution Approach 2:
The patent applies high-pressure hydraulic injection systems with dual-channel grouting pipes to force polymer slurries into soil at pressures up to 18 MPa, enabling rapid penetration and distribution of reinforcement material throughout the soil mass, dramatically increasing construction speed
2Loss of time
If fast-setting polymer materials are used to shorten construction time, then construction period is reduced, but material complexity and injection system requirements increase
Solution Approach 1:
The patent segments the grouting system into dual-channel injection pipes with separate pathways for Component A and Component B polymer slurries, allowing independent control of each component's injection while simplifying the mixing mechanism at the injection point
Solution Approach 2:
The patent uses a dual-channel grouting pipe system as an intermediary device that separately transports and simultaneously injects two different polymer components into the soil, eliminating the need for complex on-site mixing equipment while achieving rapid polymer reinforcement
3Strength
If high-pressure jet grouting is applied to reinforce soil mass, then soil strength and stability are significantly enhanced, but equipment requirements and operational complexity increase
Solution Approach 1:
The patent merges drilling and grouting operations into a single integrated process where the dual-channel grouting pipe serves both as the drilling tool and the injection conduit, eliminating separate drilling and grouting steps and simplifying construction procedures
Solution Approach 2:
The dual-channel grouting pipe system performs multiple functions: it drills into the soil, transports two different polymer components separately, mixes them at the injection point, and delivers the combined slurry under high pressure, replacing multiple specialized devices with one universal tool
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method significantly shortens construction time, enhances soil strength, prevents further erosion and landslides, and promotes vegetation growth, offering a rapid and effective solution for slope stabilization and erosion control.
Implementation Method 1
ejecting two-component fast-setting expandable polymer slurries from two channel outlets respectively of the dual-channel high-pressure grouting pipes, and grouting the two-component fast-setting expandable polymer slurries to each of a plurality of drilled holes on the diseased slope, to cut surrounding soil mass around the drilled hole, so that the polymer slurries rapidly expand and solidify to form a polymer high-pressure jet grouting pile
Implementation Method 2
positioning a polymer high-pressure jet grouting pile machine with dual-channel high-pressure grouting pipes on the operation platform; ejecting two-component fast-setting expandable polymer slurries from two channel outlets respectively of the dual-channel high-pressure grouting pipes
Implementation Method 3
grouting each grouting water interception hole to form an impermeable polymer water interception plate
Data Source
AI summary
A construction method of fast-setting polymer grouting for rapid control of slope erosion and landslide. This solution includes a landslide control method and a slope erosion control method: sorting out an operation platform; drilling and grouting of polymer high-pressure jet grouting piles on the diseased slope; drilling a row of grouting water interception holes densely on the rear edge of the diseased slope; drilling, on the operation platform, a plurality of anchor holes on the diseased slope; inserting a ground anchor into each anchor hole and performing polymer grouting to form a polymer anchorage body; laying a steel wire gauze on the surface of the diseased slope, and connecting and fixing the steel wire gauze with the tail end of each ground anchor; spraying a two-component expandable polymer grouting material onto the steel wire gauze to form a polymer anti-scour layer; drilling a plurality of planting holes on the diseased slope with a backpack drill through meshes of the steel wire gauze; and filling each planting hole with grass seed mixed nutrient soil. The present invention has the advantages of short construction period, ecological and environmental protection, convenient construction, high strength and strong scour resistance.