Multifunctional digital rock-soil static cone penetration test system

Abstract

The invention discloses a multifunctional digital rock-soil static cone penetration test system. The multifunctional digital rock-soil static cone penetration test system comprises a rock-soil static cone penetration combined sensor intelligent transmitter, a CAN (controller area network) bus-based data transmission arbitration unit, a cone penetration depth variation indicator and a rock-soil static cone penetration data processing terminal; the rock-soil static cone penetration combined sensor intelligent transmitter comprises a rock-soil static cone penetration conical tip resistance data measuring module, a side friction resistance data measuring module, a hole pressure data measuring module, an electric resistivity data measuring module, a shear wave velocity data measuring module and a slant angle measuring module; the CAN bus-based data transmission arbitration unit comprises a CAN receiver-transmitter, a communication interface and a CAN scheduling protocol; the cone penetration depth variation indicator comprises a gear rotating device which is in proportion to the depth variation, a gear rotation velocity measuring module and a rotation velocity and depth variation conversion module. The multifunctional digital rock-soil static cone penetration test system has the advantages of multiple functions, combined type, intelligentization, digitalization, convenience in operation and high efficiency.

Description

technical field [0001] The invention relates to the field of in-situ testing of geotechnical engineering, in particular to a multifunctional digital geotechnical static penetration testing system. Background technique [0002] Static penetration testing uses quasi-static force to press the conical probe into the soil through a series of probe rods at a certain penetration rate, and indirectly determines the physical properties of the soil according to the force, wave velocity, resistivity and other variables measured by the probe. This test technology can provide information on soil layer and soil mechanics parameters without disturbing the soil layer, and is an important in-situ test technology used in engineering investigation. Compared with the indoor geotechnical test, it has the characteristics of high efficiency, economy, reflecting the real situation and not destroying the internal stress of the soil. [0003] However, according to the research on existing geotec...

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Problems solved by technology

[0005] In order to solve the problem of signal loss of the transmission cable in the data transmission process between the underground system and the ground system in the static penetration test system, the present invention needs to provide a long-distance digital Geostatic Penetration Test Scheme for Signal Transmission

[0006] In order to solve the problem that the memory card type cableless static penetrometer cannot monitor the test process in real time and cannot observe the real-time changes of the test parameters, the technical problem to be solved by the present invention It is to provide a geotechnical static penetrating test scheme capable of real-time monitoring. The ground system should have a data processing terminal for real-time monitoring

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