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Pre-boring pressure meter, self-boring pressure meter and self-boring pressure metering equipment

A side pressure meter, self-drilling technology, applied in the field of foundation soil survey, construction, infrastructure engineering and other directions, can solve the problems of corrosive liquid entering the side pressure meter, easy failure, and poor quality of side pressure test.

Active Publication Date: 2014-07-16
刘潋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the embodiments of the present invention is to provide a pre-drilling side pressure meter, a self-drilling side pressure meter and a self-drilling side pressure device to solve the problem of corrosiveness caused by using gas as the expansion medium in the existing side pressure test technology. The liquid enters the side pressure instrument, and the use of manual methods to control the amount of expansion medium entering the side pressure instrument will easily lead to poor quality and failure of the side pressure test

Method used

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  • Pre-boring pressure meter, self-boring pressure meter and self-boring pressure metering equipment
  • Pre-boring pressure meter, self-boring pressure meter and self-boring pressure metering equipment
  • Pre-boring pressure meter, self-boring pressure meter and self-boring pressure metering equipment

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Effect test

Embodiment 1

[0088]This embodiment provides a pre-drilling side pressure instrument, which includes: a test device, a control device and an oil delivery pipe; the test device specifically includes a main body cylinder, an elastic membrane, a pressure sensor and a displacement sensor; the control device specifically includes Oil tank, oil pump, strain controller and data analyzer; where,

[0089] The oil pump is respectively connected to the oil delivery pipe and the oil tank, and is used to output the hydraulic oil in the oil tank through the oil delivery pipe or recover the hydraulic oil into the oil tank;

[0090] One end of the oil delivery pipe is connected to the oil pump, and the other end is connected to the main body cylinder, for inputting hydraulic oil into the main body cylinder, or recovering the hydraulic oil inside the main body cylinder;

[0091] A first through hole is provided on the cylinder wall of the main cylinder;

[0092] The elastic film is sheathed outside the mai...

Embodiment 2

[0123] This embodiment provides a specific pre-drilling side pressure instrument, such as figure 1 As shown, the pre-drilling side pressure instrument includes: a main cylinder 101, an elastic film 102, a pressure sensor 103, a displacement sensor 104, a device compartment 105, an upper collar 106, a lower collar 107, an elastic film protective cover 108, and a fuel tank 109 , oil pump 110, strain controller 111, data analyzer 112, output oil pipe 113, recovery oil pipe 114, data line 115, upper fixing ring 118, lower fixing ring 119, electronic instrument warehouse 120; oil pump 110 specifically includes oil outlet valve 110A and Oil return valve 110B;

[0124] Among them, the main body cylinder 101, the elastic membrane 102, the pressure sensor 103, the displacement sensor 104, the device compartment 105, the upper collar 106, the lower collar 107, the elastic membrane protective sleeve 108, the upper fixing ring 118, the lower fixing ring 119 and the electronic instrument ...

Embodiment 3

[0137] This embodiment provides a self-drilling side pressure instrument, which includes: a test device, a control device and an oil delivery pipe; the test device specifically includes an outer sleeve, an inner sleeve, a drill bit, an elastic membrane, a pressure sensor, displacement sensor, permeable stone and pore water pressure sensor; the control device specifically includes an oil tank, an oil pump, a strain controller and a data analyzer; among them,

[0138] The inner diameter of the outer sleeve is larger than the outer diameter of the inner sleeve, and is sleeved outside the inner sleeve;

[0139] The drill bit is fixedly connected to the lower end of the inner sleeve, and is used for rotary drilling driven by the inner sleeve;

[0140] The elastic film is sleeved outside the outer sleeve and forms a closed space with the wall of the outer sleeve. The elastic film expands when the closed space is filled with hydraulic oil and discharges the hydraulic oil in the close...

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Abstract

The invention provides a pre-boring pressure meter, a self-boring pressure meter and a self-boring pressure metering equipment. The pre-boring pressure meter comprises a test device, a control device and an oil conveying tube, wherein the test device comprises a main body barrel, an elastic film, a pressure sensor and a displacement sensor; and the control device comprises an oil tank, an oil pump, a strain controller and a data analyzer. The self-boring pressure meter comprises a test device, a control device and an oil conveying tube, wherein the test device comprises an outer layer sleeve, an inner layer sleeve, a drill bit, an elastic film, a pressure sensor, a displacement sensor, a porous stone and a pore water pressure sensor; and the control device comprises an oil tank, an oil pump, a strain controller and a data analyzer. The self-boring pressure metering equipment comprises a self-boring pressure meter, a boring device, a water circulating device and a power device. According to the invention, the elastic film is controlled to stably expand, so that fracture phenomena due to uneven expansion of the elastic film can be avoided, and test data can be ensured to be continuous and accurate; and moreover, hydraulic oil is used as an inflating medium to protect an inner circuit structure from corroding.

Description

technical field [0001] The invention relates to the technical field of geotechnical survey, in particular to a pre-drilling side pressure meter, a self-drilling side pressure meter and self-drilling side pressure equipment. Background technique [0002] The side pressure test uses the expansion of the elastic membrane installed on the side pressure meter in the soil to apply uniform pressure to the surrounding soil, and analyzes the relationship between the recorded pressure and the deformation of the soil to calculate the strength and deformation modulus of the soil. An in-situ test method for soil mechanical properties and various geotechnical parameters. [0003] Side pressure meter is the main test equipment for carrying out side pressure test. The original side pressure meter uses water as the medium. After the water is pressed into the side pressure meter, the elastic membrane expands to exert pressure on the soil. The pressure applied is recorded by the pressure pump...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D1/00
Inventor 刘潋
Owner 刘潋
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