Automatic collection device for hammering number in standard penetration test
A standard penetration test and automatic collection technology, which is applied in the direction of counting mechanisms/items, on-site foundation soil surveys, instruments, etc., to achieve the effects of easy installation, easy portability, and simple use
Inactive Publication Date: 2021-07-02
曹源
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[0006] The present invention is a standard penetration test recording device based on sensors and automatic recording devices, aiming to solve the errors and inaccuracies in manual measurement and recording, improve work efficiency, and meet the current digital technology development requirements
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[0024] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.
[0025] refer to figure 1 , 2 , the standard penetrator system includes: piercing hammer 103, pedestal 104, drill pipe 106, tripod 108; the automatic recording system includes: distance measuring alarm 101, hammer number counter 107; the automatic detection device includes: photoelectric sensor The detection device and its fixing system 102 , the ultrasonic detection device and its fixing system 105 .
[0026] In order to make the technology, advantages and solutions of this invention patent be understood, further elaboration will be made below.
[0027] combine Figure 4 , 6 , the ultrasonic detection device and its fixing system 105 are used in conjunction with the distance measuring alarm 101, the ultrasonic sensor 1054 is fixed on the connecting...
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The invention provides an automatic collection device for the hammering number in a standard penetration test, and belongs to the technical field of measurement of standard penetration tests. The automatic collection device comprises a standard penetration test system, an automatic recording system and an automatic detection device. The standard penetration test system comprises a piercing hammer, a pedestal, a drill rod and a tripod; the automatic recording system comprises a distance measuring alarm and a hammer count counter; and the automatic detection device comprises a photoelectric sensor detection device, a fixing system of the photoelectric sensor detection device, an ultrasonic detection device and a fixing system of the ultrasonic detection device. The automatic collection of the SPT hammering number N is used for replacing field manual visual inspection, so that the probability of missing recording and misrecording of manual recording is reduced, the in-situ test digital collection level is improved, and meanwhile, the field test efficiency and precision are further improved.
Description
technical field [0001] The invention relates to the technical field of measurement of a shield standard penetration test, in particular to an automatic collection device for the impact number of a standard penetration test. Background technique [0002] Standard penetration test is a kind of dynamic penetration test, which is an important in-situ test method for studying the physical and mechanical properties of sand or cohesive soil, and is currently widely used in international geotechnical engineering investigations. [0003] The standard penetration test equipment mainly consists of three parts: standard penetrator, penetrating rod and piercing hammer. The probe rod generally uses a drill pipe with a diameter of 42 mm, and the piercing hammer weighs 63.5 kg. It uses a certain hammering function (hammer weight 63.5kg, drop distance 76cm) to split a split-tube penetrator of a certain specification (split-tube outer diameter 51mm, inner diameter 35mm, length greater than 4...
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Login to View More IPC IPC(8): E02D1/00G06M1/272
CPCE02D1/00G06M1/272
Inventor 曹源万衡董文澎潘志群刘虎
Owner 曹源