TS-RD1203 (A) Elastic Wave Hole Bottom Cave Detector

NegotiableUpdate on 01/21

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Introduction to TS-RD1203 (A) Elastic Wave Hole Bottom Cave Detector: The TS-RD1203 (A) pile bottom cave detector uses elastic wave reflection method to efficiently explore the distribution of pile bottom caves. A pile hole can be used for multi-point detection, and the orientation of each measuring point can be recorded simultaneously, thus accurately determining the karst distribution at the bottom of the entire pile; Based on the reflection intensity and time of elastic waves on the surface of weak geological bodies such as karst, the burial depth of karst at the bottom of piles can be accurately determined. There is no need for complex preparation work during detection, and the detection process is controlled by equipment, which is simple and fast.

Product Details

Application Background

According to the requirements of the "Code for Investigation of Geotechnical Engineering" and other regulations, rock socketed cast-in-place piles should have no weak interlayers, fracture zones, or cave distributions within a range of three times the pile diameter below the pile end and not less than 5 meters, and there should be no rock mass free face within the stress diffusion range at the pile bottom. Large diameter rock socketed piles with single columns and single piles should be inspected for adverse geological conditions such as soil caves, karst caves, fractured zones, or weak interlayers within a depth range of 3 times the diameter of the pile body or 5 meters below the rock type inspection hole.

At present, the method of advanced drilling at the bottom of piles is commonly used in engineering to detect karst caves at the bottom of piles, and large-diameter piles require multiple drilling holes. Although the drilling method is the most direct, a single borehole can only determine the current location of the borehole and cannot reflect the distribution of karst caves under the entire pile, which can easily result in missing karst caves; A porous drilling project has high cost and long construction period, which affects the overall progress of the project.

　　TS-RD1203 (A) type pile bottom karst cave detectorUsing elastic wave reflection method to efficiently explore the distribution of karst caves at the bottom of piles. A pile hole can be used for multi-point detection, and the orientation of each measuring point can be recorded simultaneously, thus accurately determining the karst distribution at the bottom of the entire pile; Based on the reflection intensity and time of elastic waves on the surface of weak geological bodies such as karst, the burial depth of karst at the bottom of piles can be accurately determined. There is no need for complex preparation work during detection, and the detection process is controlled by equipment, which is simple and fast.

Application field

1. Detection of karst caves at the bottom of cast-in-place pile holes;

2. Detection of karst caves at the bottom of manually excavated piles;

3. Suitable for detecting karst caves at the bottom of various types of pile holes such as mud holes or dry holes.

working principle

The detection of karst caves at the bottom of the hole is based on the principle of elastic wave reflection. The probe is equipped with a high-power elastic wave excitation device and multiple elastic wave detectors. During testing, the probe is lowered to the bottom of the hole, and the system automatically excites elastic waves; During the propagation of elastic waves towards the rock layer at the bottom of the borehole, they reflect back when encountering structures such as caves, cracks, and weak strata. The elastic wave detector receives the reflected signal and can determine the depth position of the abnormal structure based on the changes in the strength and propagation time of the received reflected signal. By adjusting the probe at different positions at the bottom of the hole, multi-point detection can be carried out in different directions at the bottom of the hole, achieving full coverage of the bottom detection and effectively detecting the horizontal distribution and depth of the cave at the bottom of the hole.

Technical Features

1. High power high-frequency acoustic source automatic excitation, deep detection depth, high accuracy, detection depth can reach 15 meters;

2. Automatically and accurately adjust the position of the transducer to accurately determine the location of the cave;

3. Automatically adjust the relative height between the excitation source and the receiving transducer to ensure good grounding for both excitation and reception, suitable not only for mud holes but also for dry holes without water coupling;

4. Built in probe posture sensor, which can record the orientation of the measuring point and determine the posture of the probe at the bottom of the hole, ensuring accurate and reliable test results;

5. The instrument adopts a 24 bit 500kHz analog-to-digital conversion unit, which has the ability and accuracy to detect weak signals;

6. The host adopts DC12V power supply, with low power consumption; Built in high-energy lithium battery, capable of continuous operation for 10 hours on a single charge;

7. The software system inside the host is an embedded operating system with a Chinese interface that is aesthetically pleasing, simple, and efficient;

8. The host adopts USB 2.0 data interface, which makes data transmission simple and convenient; The host has 8GB of built-in storage and adopts FAT32 data storage format

Under the universal Windows operating system, the measured data files can be directly copied and pasted through the USB 2.0 interface;

9. The host shell mold is formed, waterproof and dustproof, with a protection level of IP67, safe, beautiful and generous;

10. The analysis software has digital filtering (high pass, low-pass, band-pass), spectrum analysis, phase analysis, reflection extraction, and signal correlation, which are helpful for determining the location of karst caves.