CN2872354Y

CN2872354Y - Soil-property frost ratio determiner

Info

Publication number: CN2872354Y
Application number: CN 200520029335
Authority: CN
Inventors: 陈志国; 王晓珂; 陈东丰; 孙雨怀; 孙岩; 王珐玮; 任宏贺; 曹春梅
Original assignee: JILIN INST OF COMMUNICATION SCIENCES
Current assignee: JILIN INST OF COMMUNICATION SCIENCES
Priority date: 2005-10-19
Filing date: 2005-10-19
Publication date: 2007-02-21
Anticipated expiration: 2015-10-19

Abstract

The utility model discloses a soil frozen-heave rate detector, which comprises a sealed box having a refrigeration source at its bottom, a refrigeration work chamber in its middle and a detecting chamber on its top. The refrigeration source is arranged at the bottom of the refrigeration work chamber to transfer cold to allow the refrigeration work chamber in a sub-zero environment. A metal conductive plate is fitted at the junction of the refrigeration work chamber and the detecting chamber and provided with a soil sample test mould. The soil sample test mould is further provided with a displacement testing sensor thereon and is connected to a display control instrument, so that displacement can be displayed on a secondary instrument. The utility model is a dedicated soil frozen-heave rate measuring device, and has advantages of no influence of other factors, direct measurement at low temperature, high measurement accuracy, and increased work efficiency. The utility model provides the quality assurance for building and road constructions.

Description

Soil property frozen-heave factor analyzer

Technical field:

The utility model relates to a kind of structure foundation basis and native surveying instrument that produces frost-heaving deformation under negative temperature of structure of being used for, and especially discloses a kind of soil property frozen-heave factor detector, belongs to the detecting instrument structure with the field.

Background technology:

At present, also be not specifically designed to the detecting instrument of measuring the soil property frozen-heave factor at home, conventional method is after soil sample is made standard component, put into refrigerator or refrigerator-freezer, distortion is measured on limit refrigeration, limit, influences accuracy of observation, wastes time and energy, be difficult to the effect that reaches desirable, influence the design of freezing resistance and the service property (quality) of buildings.

Summary of the invention:

The utility model discloses a kind of soil property frozen-heave factor analyzer, realized refrigeration and measured integratedly, improved precision and the efficient measured.

The utility model adopts following technical solution: the case structure that is made of sealing the measuring chamber on the refrigeration work chamber at the refrigeration source of bottom, middle part and top, wherein, refrigeration source is located at the cool room bottom, cold is passed to the refrigeration work chamber, make and form subzero environment in the cool room, be provided with the metal heat-conductive plate at cool room and measuring chamber junction, the soil sample test piece mould is housed on the heat-conductive plate, test piece mould is provided with the test displacement transducer, and be connected with showing control instrument, and the displacement of the amount of making is shown on secondary instrument.

The course of work is as follows: start refrigeration source generation cold refrigeration work chamber refrigeration is reached specified negative temperature, by heat-conductive plate test piece mould is freezed again, prefabricated soil sample test specimen is placed among the mould, the negative temperature of mold base makes local products give birth to frost heave, displacement transducer by the Measurement die earthwork records displacement deformation, draws the data of soil property frozen-heave factor.

Good effect of the present utility model is: be designed to special-purpose soil property frozen-heave factor checkout equipment, reduce other influence factors, can directly measure the frost-heaving deformation of soil under the low-temperature condition, had higher measuring accuracy, improved the efficient of measuring, for the construction of building, highway provides quality assurance.

Description of drawings:

Fig. 1 is the utility model structure principle chart

Embodiment:

According to shown in Figure 1: body 1 of the present utility model is a case structure, the low-temperature receiver 2 of bottom is fluorine Lyons refrigerator, the middle part be refrigeration work chamber 3 by low-temperature receiver 2 with its refrigeration, the top of cool room 3 also is provided with measuring chamber 4, connect by heat-conductive plate 5 between two Room, sample mould 6 is located in the measuring chamber 4, and device is on heat-conductive plate 5, be connected with test displacement transducer 7 on it, and be connected with demonstration control instrument 8.

Claims

1, a kind of soil property frozen-heave factor analyzer, it is characterized in that: the case structure that constitutes sealing by the measuring chamber on the refrigeration work chamber at the refrigeration source of bottom, middle part and top, wherein, refrigeration source is located at the cool room bottom, cool room and measuring chamber junction are provided with the metal heat-conductive plate, the soil sample test piece mould is housed on the heat-conductive plate, and test piece mould is provided with the test displacement transducer, and is connected with the demonstration control instrument.