Multi-bridge static sounding equipment and multi-bridge static sounding test method

Abstract

The invention discloses multi-bridge static sounding equipment which comprises a static sounding rod and a force applying device, wherein a probe is arranged at the bottom end of a rod body; the force applying device is positioned above the static sounding rod and applies force to the static sounding rod; and a conical tip resistance sensor for measuring the resistance of a conical tip and a side wall friction resistance sensor for measuring the side wall friction resistance are arranged on the probe. The multi-bridge static sounding equipment is characterized in that the static sounding rod further comprises a microcamera for underground shooting and a plurality of sensors; the sensors are respectively used for measuring the pore water pressure, the temperature, the side pressure, the inclination, water content, the seismic velocity and seismic acceleration; and the sensors can be arranged in a connector and can be sequentially connected according to the requirement of test projects or can be directly and fixedly arranged inside the rod body of the static sounding rod or can be integrated on the probe to form the multifunctional probe. Due to the adoption of the technical scheme provided by the invention, one test process can be used for testing a large amount of projects so as to obtain abundant underground geotechnical information. The invention further discloses a multi-bridge static sounding test method.

Description

technical field [0001] The invention relates to a testing device for geotechnical engineering, in particular to a static penetrating sounding equipment; the invention also relates to a static penetrating sounding test method. Background technique [0002] In the prior art, static penetration testing applied to geotechnical engineering investigation and in-situ testing methods is divided into single-bridge static penetration testing, double-bridge static penetration testing and three-bridge static penetration testing according to the test items to be read. Force touch. The static penetration testing equipment used in single bridge static penetration testing has only one pressure sensor in the probe, which can only read the specific penetration resistance P of the soil layer s , the data is single, the amount of soil mechanics information is small, and it is difficult for engineers and technicians to analyze, so it has been used less and less. The probe of double-bridge stat...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional static sounding equipment, including the third bridge static sounding equipment, can only obtain the above-mentioned pressure information of the underground rock and soil layer, and cannot obtain such information as temperature, lateral pressure, inclination, water content, seismic wave velocity, seismic Acceleration and other information, and underground image information cannot be obtained. If more information needs to be tested, a separate probe is often specially made according to the items to be measured, and special test equipment is required for testing, which is expensive

At the same time, the traditional earth-borrowing drilling method has low efficiency, high labor intensity, and poor operating environment, resulting in fewer and fewer workers willing to engage in drilling work. Therefore, it is urgent to find an efficient exploration process that can replace drilling

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