Dual-hole coordinated karst geologic structure electromagnetic wave and laser fusion detection system

By using a dual-hole collaborative electromagnetic wave and laser fusion detection system for karst geological structures, the complexity of karst geological structures in deep-water pile foundation construction has been solved. This system enables quantitative characterization and risk identification of hidden disaster-causing factors, optimizes construction decisions, and avoids accidents and material waste.

CN122331010APending Publication Date: 2026-07-03ANHUI UNIVERSITY OF ARCHITECTURE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing exploration methods are unable to effectively detect the complexity of karst geological structures during deep-water pile foundation construction, making it difficult to estimate the amount of concrete to be poured and leading to catastrophic accidents such as rock slab penetration, pile foundation suspension, or uneven settlement.

Method used

A dual-hole collaborative electromagnetic wave and laser fusion detection system for karst geological structures is adopted. By fusing cross-hole electromagnetic wave transmission signals with three-dimensional panoramic scanning point cloud data, an electromagnetic wave tomography model and three-dimensional panoramic scanning point cloud data are constructed. The deep karst development index and cavity volume morphology index are quantified. Combined with the comprehensive index of grouting construction risk, a differentiated construction management strategy is generated.

Benefits of technology

It enables quantitative characterization of hidden disaster-causing factors, improves the accuracy and comprehensiveness of risk identification, prevents sudden accidents during concrete pouring, and optimizes construction costs and efficiency.

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Abstract

This invention provides a dual-hole collaborative electromagnetic wave and laser fusion detection system for karst geological structures, belonging to the fields of precision geotechnical engineering detection and intelligent sensing technology. Based on a probe assembly, this invention heterogeneously fuses the geometric representation of laser point clouds with electromagnetic wave medium inversion data using a unified cylindrical coordinate system. The system quantifies hidden disaster-causing factors by calculating the deep karst development index and cavity volume morphology index; it uses a spatial Euclidean distance difference algorithm to calculate the minimum safe partition wall thickness, accurately locating high-risk sectors of rock wall penetration. Furthermore, the system adjusts the scanning step distance in real time based on the wave velocity gradient and generates an adaptive grouting control strategy. This invention effectively eliminates single detection blind spots, achieves three-dimensional visualization and risk quantification assessment of hidden karst, and improves the safety and scientific decision-making of pile foundation construction in complex geological environments.
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