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Dynamic-sounding automatic test instrument and implementation method

A technology of automatic testing and dynamic penetration testing, which is applied in the field of foundation soil surveying, construction, infrastructure engineering, etc., can solve the problems of insufficient efficiency, cumbersome process, and labor-intensive energy, so as to improve the speed and accuracy, and improve the detection accuracy , Improve the effect of measurement accuracy

Pending Publication Date: 2020-03-24
苟印祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is cumbersome, labor-intensive, time-consuming and costly, and manual records are prone to errors and errors. The measurement of the drill pipe inclination required by the specification is not timely or cannot be found in time, and the economic cost is high, and the efficiency is obviously insufficient. , the accuracy is not guaranteed

Method used

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  • Dynamic-sounding automatic test instrument and implementation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1 ~ Figure 5 As shown, this embodiment provides an automatic test instrument for dynamic penetration, including hammer base 1, drill rod 2, probe 3, guide rod 4, penetrating hammer 5, automatic decoupling device 6, data processing module 7, laser ranging module 8. Acceleration module 9, power supply module 13, storage module 14, status indication module 15, and sound alarm module 16.

[0032] The upper part of the hammer base 1 is a solid cylinder made of steel, and its bottom center is connected with a vertical drill pipe 2 through threads. The lower end of the drill pipe 2 is equipped with a probe 3, and the drill pipe 2 and the probe 3 are of internationally prescribed materials And the standard equipment of the model, the bottom of the hammer seat 1 is equipped with an equipment compartment, and the drill rod 2 penetrates the equipment compartment. The top of the hammer seat 1 is vertically installed with a guide rod 4, a piercing hammer 5 is movably i...

Embodiment 2

[0045] Such as Image 6 As shown, this embodiment is basically the same as Embodiment 1. Only the laser ranging module 8 is provided with three, and there are three central partitions 18 for installing the laser ranging module 8 in the equipment compartment. The plate 18 is uniformly distributed in a ring shape with the vertical axis of the drill pipe 2 as the center; the three laser ranging modules 8 are respectively installed on different middle partitions 18, and the three laser ranging modules 8 are connected to the axis of the drill pipe 2 The distances r are equal, and the acceleration module 9 is installed on any central partition 18. The outer wall of the equipment warehouse is provided with three knobs for adjusting the initial value of the inclination of the laser ranging module 8. By manually rotating the knobs, the verticality of the laser beam emitted by the laser ranging module 8 can be adjusted.

[0046] During specific detection in this embodiment, the following s...

Embodiment 3

[0056] This embodiment is basically the same as Embodiment 1, except that a positioning module 11 connected to the data processing module 7 is added to the equipment warehouse. The positioning module 11 is used to measure the position coordinates of the borehole, and by measuring the coordinate data of the borehole position twice before and after, it can determine whether the borehole position has shifted. First, the coordinate data of the detection position (X 1 , Y 1 ,Z 1 ), when starting to probe the borehole, the coordinate data (X 2 , Y 2 ,Z 2 ), the data is sent to the data processing module 7 and compared with the positioning accuracy value A of the positioning module 11. If the lateral displacement is within the set interval, the drilling position is considered normal, and the subsequent steps are continued. If it is not satisfied, it is determined The drilling has shifted or deviated from the design value. At this time, the data processing module 7 controls the operatio...

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Abstract

The invention discloses a dynamic-sounding automatic test instrument. The dynamic-sounding automatic test instrument comprises a hammer base. A drill stem is detachably mounted at the bottom of the hammer base. A probe is mounted at the bottom of the drill stem. A guide rod is mounted at the top of the hammer base. A center penetration hammer is movably mounted on the guide rod. A data processingmodule, a laser ranging module and an acceleration module are arranged at the bottom of the hammer base, and the laser ranging module and the acceleration module are connected with the data processingmodule. The laser ranging module is used for measuring distance data between the bottom of the hammer base and the ground and sending the distance data to the data processing module. The center-penetration hammer hammers the hammer base repeatedly, the distance data are measured every time hammering is completed, and the data processing module works out the sounding depth according to the multiple pieces of distance data. The acceleration module is used for measuring the acceleration speed and speed of downward movement of the drill stem after every time of hammering and sending measured datato the data processing module. The data processing module determines whether every time of hammering is effective according to the acceleration speed and speed data. The dynamic-sounding automatic test instrument can achieve automatic measurement, judgment, recording and data processing and is high in efficiency and precision.

Description

Technical field [0001] The invention relates to the technical field of geotechnical engineering survey, in particular to a dynamic cone penetration automatic test instrument and an implementation method. Background technique [0002] Dynamic cone penetration test and standard penetration test are commonly used in-situ testing methods in geotechnical engineering survey and foundation inspection. Dynamic cone penetration test is divided into light (10kg), medium (28kg), Heavy (63.5kg), super heavy (120kg). This type of test is based on engineering experience formed by a large amount of test data (the national standard GB50021-2001 (2009 edition) and some local standards have been formed) have established different types of penetration tests for the number of hammers N, penetration depth △H and The correlation between soil compactness, bearing capacity, and liquefaction index, to carry out engineering geological stratification and qualitative evaluation of the stratum. [0003] At p...

Claims

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Application Information

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IPC IPC(8): E02D1/00
CPCE02D1/00E02D2600/10
Inventor 苟印祥郭天兴石磊李桂兴
Owner 苟印祥
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