Micro static force penetrometer

Abstract

The invention discloses a micro static force penetrometer which comprises a probe, a probe rod, a microcomputer and a handle, wherein the probe comprises an outer cylinder, a strain cylinder, a force guide rod and a conical head; a strain sheet is arranged on the cylinder wall of the strain cylinder; the probe rod is cylindrical; an outer thread is arranged at one end of the probe rod and an inner thread is arranged at the other end of the probe rod; a clamping head which is used for clamping the handle on the probe rod is arranged at one end of the handle; a bayonet which is used for containing the probe rod is arranged on the clamping head; the microcomputer comprises a display apparatus which is used for displaying pressure data and a host; and the host is connected with the strain sheet through a wire. The micro static force penetrometer has the advantages of being light in weight, small in volume and convenient in carrying and field construction, greatly improving the work efficiency of the detection and the like.

Description

technical field [0001] The invention relates to a miniature static penetrating sounder. Background technique [0002] In the construction of power transmission projects, it is necessary to conduct geotechnical surveys where the power transmission facilities to be built are located, and to extract geotechnical related data to serve the project construction. [0003] The geotechnical engineering investigation of transmission lines has the following characteristics: 1) Large spatial span: each transmission line ranges from a few kilometers to hundreds of kilometers, with a large spatial span and a wide range of operations; 2) Many operating points: Usually transmission lines are Grade and topography limit that there are several tower positions per kilometer, and a power transmission line has dozens or hundreds of tower positions, and each base tower position needs to provide foundation soil and geotechnical engineering parameters separately, which is a heavy workload; 3) Geotec...

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Problems solved by technology

[0003] The geotechnical engineering investigation of transmission lines has the following characteristics: 1) Large spatial span: each transmission line ranges from a few kilometers to hundreds of kilometers, with a large spatial span and a wide range of operations; 2) Many operating points: Usually transmission lines are Grade and topography limit that there are several tower positions per kilometer, and a power transmission line has dozens or hundreds of tower positions, and each base tower position needs to provide foundation soil and geotechnical engineering parameters separately, which is a heavy workload; 3) Geotechnical engineering conditions are complex: a power transmission line The line usually spans a variety of terrains and landforms, and the geotechnical engineering conditions are various and complex. The distance between every two adjacent exploration points is at least hundreds of meters

4) The field work time is relatively short and the method is not complete, especially for 220kV and below power transmission projects, the field time period is short, and the regulations require the same geomorphic unit to arrange an exploration point every 3~5 bases, which itself lacks certain rigor sex

However, there are several disadvantages: first, there is no objective data to determine the engineering parameters of the foundation soil; second, although the manual small screw drill operation is faster, it still cannot match the progress of the power overhead line team

Third, the survey depth is limited, requiring a little more staff

[0007] At present, the most portable 2T portable static penetrometer has a probe with a cone area of ​​10mm 2 , the length is about 200mm, it needs a set of complex three-stage transmission mechanism, so the whole is heavy and requires 4 skilled workers to operate, which is time-consuming and labor-intensive

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