Multifunctional sounding device and its sounding test method

A testing method and multi-functional technology, applied in soil material testing, measuring devices, using mechanical devices, etc., can solve the problems of inconvenience to continuously measure the dynamic indexes of soil layers on the full-depth profile, difficult to represent shear strength, difficult to implement, etc. Achieve the effect of eliminating difficulties and uneconomical, without increasing the process and labor intensity, and with a small distance between measuring points

Active Publication Date: 2012-10-31
建设综合勘察研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem is that the left and right ends of the soil sample are sheared immediately after being stressed, while the middle part is always in an elastic state, so that the obtained results cannot represent the true shear strength of the soil.
However, its disadvantages lie in the need to drill a hole and the difficulty of exciting vibration in the hole (cross-hole method) and picking up vibration, especially it is difficult to implement below the water level, and it is inconvenient to continuously measure the soil layer on the full-depth profile due to "spot measurement". The dynamic index of

Method used

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  • Multifunctional sounding device and its sounding test method
  • Multifunctional sounding device and its sounding test method
  • Multifunctional sounding device and its sounding test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Such as figure 1 As shown, the multifunctional penetrating device of the present invention includes: a combined probe 10 and a probe rod 8; a single bridge probe 1 that is conical and contains a hollow column strain sensor is provided at the end of the combined probe 10 ; The upper end of the single bridge probe 1 is a connection device 2, a multi-directional wave detection device 3, a force sensor 4, and a puncher 5, and a drive shaft frame 6 and a drive motor 7 are provided on the puncher 5. Wherein, the load cell 4 is used to measure the force value of the puncher 5;

[0063] A cable is provided in the combined contact probe 10, one end of which is connected to the electrical signal connection equipment of the single bridge probe 1, the multidirectional wave detection device 3, the load cell 4 and the driving motor 7; the other end is drawn out and connected to the ground respectively. The secondary instrument and electronic control equipment are connected; the vibr...

Embodiment 2

[0080] Such as image 3 As shown, the multifunctional penetrating device of the present invention includes: a combined probe 10 and a probe rod 8; a single bridge probe 1 that is conical and contains a hollow column strain sensor is provided at the end of the combined probe 10 ; On the upper end of the single-bridge probe 1 is the connecting device 2 and the multi-directional wave detection device 3 ;

[0081] A cable is arranged in the combined contact probe, and one end thereof is connected with the single bridge probe 1 and the multi-directional wave detecting device 3; the other end leads out to be connected with the secondary instrument on the ground; The source device is connected to the secondary meter.

[0082] The multi-directional wave detection device 3 adopts an electromagnetic speed pendulum, and the output voltage is transmitted to the secondary instrument on the ground.

[0083] The tube of the multi-directional wave detection device 3 is a demagnetized metal tu...

Embodiment 3

[0092] Such as Figure 4 As shown, the multifunctional penetrating device of the present invention includes: a combined probe 10 and a probe rod 8; a single bridge probe 1 that is conical and contains a hollow column strain sensor is provided at the end of the combined probe 10 ; The upper end of the single bridge probe 1 is the connecting device 2, the load cell 4, and the punching device 5, and the driving shaft frame 6 and the driving motor 7 are arranged on the punching device 5. Wherein, the load cell 4 is used to measure the force value of the puncher 5;

[0093] A cable is arranged in the combined contact probe, and one end thereof is connected with the electric signal connection equipment of the single bridge probe 1, the load cell 4 and the driving motor 7; connect.

[0094] The punching and shearing device 5 is two force-applying ends of wedge-shaped section, which take the central axis as the axis, and form a force-measuring lever with the force point located in t...

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Abstract

The utility model relates to a multifunctional sounding device and the corresponding test method of sounding. The multifunctional sounding device comprises a combined sounding head and a sounding rod, which is characterized in that a conic single bridge probe is arranged on the end of the combined sounding head. The upper end of the single bridge probe is connected with a multi-direction detector, a force sensor and a punching shear machine which is provided with a drive shaft bar and a driving motor. The utility model has the function of static force sounding, wave velocity test and direct in situ soil shear resistance strength test utilizing punching shear mechanism. In a single test hole in open field in situ test, the resting and dynamic response and corresponding parameters of rock and soil can be gained sufficiently utilizing the mechanics mechanism of transverse penetration and reverse lifting. So the in situ wave velocity test has the advantages of being small in distance between test points, successive in test data and practical in real-time observation and inspection, enabling in situ real time successive test of the shear resistance strength of rock and soil and multiple results from single test.

Description

technical field [0001] The invention relates to a survey and detection device, in particular to a multifunctional penetrating probe device and a penetrating test method thereof. Background technique [0002] Geotechnical engineering creative testing technology, which involves civil engineering, construction, port engineering, geology and mines, bridges and tunnels, and environmental protection engineering, etc., related to the remediation, transformation, utilization and other engineering issues of the crust and surface rock and soil. Over the past half a century, various infrastructure projects have developed towards high, large, sophisticated and deep, and there is an urgent need to measure the mechanical properties of the depth and interior of rock and soil for design and construction supervision. [0003] At present, in the detection of geotechnical engineering in our country, the electric static penetrating sounder developed by our institute in 1964 is still widely used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/24G01N3/24G01N19/00G01V1/147
Inventor 王钟琦
Owner 建设综合勘察研究设计院有限公司
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