CN211374739U

CN211374739U - Sample box for sandy soil saturation detection

Info

Publication number: CN211374739U
Application number: CN201920771733.3U
Authority: CN
Inventors: 赵志旭; 汪云龙; 陈龙伟; 陈卓识
Original assignee: Institute of Engineering Mechanics China Earthquake Administration
Current assignee: Institute of Engineering Mechanics China Earthquake Administration
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-08-28
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a sample box for sandy soil saturation detects, including box (21), shelf (22) and filter layer (23), be formed with transparent observation window (211) that extends from top to bottom on the lateral wall of box (21), the periphery of box (21) outside bottom plate is formed with a plurality of outstanding mounting (212), the periphery and the middle part department of box (21) inside bottom plate are formed with support piece (213); the shelf (22) is placed and substantially fixed on the support (213), thereby forming a bottom space (214) of the cabinet together with the bottom and side walls of the cabinet (21) and the support (213), and the shelf (22) is formed with a plurality of openings (221); a plurality of through holes (215) are formed in the side wall of the bottom of the box body (21), and the through holes are communicated with a bottom space (214) of the box body; the filter layer (23) is arranged on the shelf (22).

Description

Sample box for sandy soil saturation detection

Technical Field

The utility model relates to a geotechnical experiment technique especially relates to a sample box for sandy soil saturation detects.

Background

In solving the geological problems associated with various types of engineering construction, it is necessary to know the engineering geology of the rock and soil, and the engineering geology of the soil includes physical, hydraulic and mechanical properties, wherein the physical properties are some properties indicating the physical state of the soil and are expressed by the basic physical indexes of the soil, some of the indexes directly measure, for example, water content, density, specific gravity, volume and the like, and some of the indexes calculate, for example, saturation and the like. The saturation degree of soil refers to the ratio of the volume occupied by water in soil pores to the volume of the soil pores, and represents the degree of filling of water in the pores. The saturation can reflect the dryness and the humidity and the property of the soil, and has important significance in the actual engineering. For the liquefaction of geotechnical engineering, the saturation of soil is an important index for judging the liquefaction of sandy soil, and the saturation test has important significance all the time.

The saturation measurement is obtained mainly indirectly by calculation, and the calculation is often biased by various factors. At present, no special device for detecting the sand saturation degree exists. Accordingly, there is a need for techniques and apparatus in this regard.

Disclosure of Invention

For overcoming the at least partial technical problem that prior art exists, the utility model provides a sample box for sandy soil saturation detects, it can be used for surveing the sandy soil saturation, has easy operation convenience, the advantage of reliable and direct-viewing of result.

According to another aspect of the present invention, there is provided a sample box for sand saturation detection, which is characterized by comprising a box body 21, a shelf 22 and a filter layer 23,

a transparent observation window 211 extending up and down is formed on the side wall of the box body 21, a plurality of protruding fixing pieces 212 are formed on the periphery of the bottom plate on the outer side of the box body 21, and supporting pieces 213 are formed on the periphery and the middle part of the bottom plate on the inner side of the box body 21;

the shelf 22 is placed and substantially fixed on the supporting member 213, thereby forming a bottom space 214 of the cabinet together with the bottom and side walls of the cabinet 21 and the supporting member 213, and the shelf 22 is formed with a plurality of openings 221; a plurality of through holes 215 are formed on the side wall of the bottom of the box body 21, and the through holes are communicated with a box body bottom space 214;

the filter layer 23 is disposed on the shelf 22.

According to an embodiment of the present invention, wherein the transparent observation window 211 is formed of glass, and a scale is formed thereon.

According to one embodiment of the present invention, the container body 21 further includes a plurality of hanging rings 216 formed on the top side wall thereof.

According to an embodiment of the present invention, the fixing member 212 has a hole formed thereon.

According to one embodiment of the present invention, wherein the filter layer 23 is a sintered copper plate.

According to an embodiment of the present invention, wherein the shelf 22 is formed to include a recess portion on which the opening 221 is formed and a peripheral flange portion supported above the supporting member 213.

According to one embodiment of the present invention, the box 21 is generally cylindrical or quadrangular. Preferably, the cylindrical drum 11 further comprises a rib 116 formed on the outer surface of the bottom of the drum.

Drawings

Fig. 1 is a schematic front view of a sample box for sandy soil saturation detection according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a side view of a sample box for sand saturation detection according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of the sample chamber of fig. 2 taken along line a-a.

Fig. 4 is a schematic top view of a sample box for sand saturation detection according to an embodiment of the present invention, wherein the filter layer is not shown.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is a schematic front view of a sample box for sandy soil saturation detection according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a side view of a sample box for sand saturation detection according to an embodiment of the present invention. Fig. 3 is a cross-sectional view of the sample chamber of fig. 2 taken along line a-a.

Referring to fig. 1-3, the sample box for sand saturation detection of the present invention may include a box body 21, a shelf 22 and a filter layer 23.

More specifically, the case 21 has a substantially square case shape, one side of which is open. Other suitable shapes are of course possible, such as a cylinder. A transparent observation window 211 extending vertically is formed in a side wall of the case, and such a transparent observation window 211 may be formed in one side wall or a plurality of side walls. A plurality of protruding fixing members 212 are formed at the periphery of the bottom plate outside the case 21, and the fixing members 212 are used to fix the case 21 to other devices. For example, the fixing member 212 may be formed with a hole (see fig. 4) with which the case 21 can be fixed.

According to an embodiment of the present invention, the transparent observation window 211 may be formed of glass, such as organic transparent glass, and have a scale formed thereon. The accuracy of the scale can be set to, for example, millimeter, tenth millimeter, etc. as required, and the change in the height of the solution inside the tank 21 can be reflected by the scale, thereby reflecting the change in the volume thereof.

In addition, the box body 21 further includes a plurality of hanging rings 216 formed on a top side wall thereof for facilitating movement of the box body, and the box body may be hung and installed by the hanging rings 216, for example.

As shown in the drawings, a support 213 is formed at the periphery and the middle of the inner bottom plate of the case 21 for supporting the shelf 22. That is, the shelf 22 is placed and substantially fixed on the support 213, thereby constituting a cabinet bottom space 214 together with the bottom and side walls of the cabinet 21 and the support 213. The support 213 may be formed continuously, for example as a ring of supports along the periphery of the tank 21, for example as a continuous strip of supports across the bottom, connected to the ring of supports. Of course, it may be in the form of a plurality of support points formed discontinuously as long as the shelf 22 can be fixedly supported. A plurality of through holes 215 are formed on the side wall of the bottom of the box body 21, and the through holes are communicated with a box body bottom space 214; so that a gas such as carbon dioxide, a liquid such as water, etc. can be introduced into the tank through the through-hole 215. The presence of the bottom space 214 allows for the convenient introduction of liquid or gas without clogging.

Fig. 4 is a schematic top view of a sample box for sand saturation detection according to an embodiment of the present invention, wherein the filter layer is not shown. As shown, the shelf 22 is formed with a plurality of openings 221. So that the introduction of gas and liquid, etc. through the through-hole 215 and the bottom space 214 can further penetrate into the tank.

The shelf 22 may be formed in a flat plate type, and the shelf 22 has a shape and size substantially corresponding to a cross-section of the case such that the shelf 22 can be placed and substantially fixed in the case. The filter layer 23 is placed and fixed on the shelf 22, for example, the filter layer 23 substantially conforms to the shape of the shelf 22. The shelf 22 may also be formed to include a recessed portion and a peripheral flange portion, i.e., formed as a flanged basin. An opening 221 is formed in the recess (i.e. the bottom of the tub) and the surrounding flange portion is supported above the support member 213. The shelf 22 may be designed to include a plurality of such basins. As shown in figure 4, two such basins are shown, formed as a flange in the middle, resting on a support 213 formed in the central part of the bottom of the corresponding tank. The respective openings 221 are formed in the bottom of the tub. Such a design allows a better fixation of the filter layer 23.

The filter layer 23 is disposed on the shelf 22, and a soil sample is placed on the filter layer 23. The provision of said filter layer 23 makes it possible to prevent soil from penetrating to the bottom of the tank, adversely affecting the detection of saturation, while allowing liquids, such as water, and gases, such as carbon dioxide, to pass freely. The filter layer 23 may be a sintered copper filter plate, a sintered steel filter plate, a microporous ceramic filter plate, or the like. For example, the sintered copper filter material can be formed by sintering copper alloy powder at a high temperature, and has the characteristics of high filter precision, good air permeability, high mechanical strength, high material utilization rate and the like. Porous elements of various shapes, structures, different particle sizes, porosities can be produced as desired, such as: a hood, cap, sheet, plate, tube, rod-shaped filter element.

When utilizing the utility model discloses a sample box detects, can with filter layer 23 sets up on shelf 22, then with the soil sample dress on shelf 22. The sample box with the sample is placed in another container such as an outer cylinder device and fixed by a fixing member 212. A liquid such as water and a gas such as carbon dioxide, etc. may then be introduced into the sample chamber through the through hole 215, thereby saturating the sample with moisture. While the observation can be made with the transparent observation window 211. And further the saturation of the sample is detected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sample box for detecting the sand saturation is characterized by comprising a box body (21), a shelf (22) and a filter layer (23),

wherein, a transparent observation window (211) which extends up and down is formed on the side wall of the box body (21), a plurality of protruding fixing pieces (212) are formed on the periphery of the bottom plate at the outer side of the box body (21), and supporting pieces (213) are formed on the periphery and the middle part of the bottom plate at the inner side of the box body (21);

the shelf (22) is placed and substantially fixed on the support (213), thereby forming a bottom space (214) of the cabinet together with the bottom and side walls of the cabinet (21) and the support (213), and the shelf (22) is formed with a plurality of openings (221); a plurality of through holes (215) are formed in the side wall of the bottom of the box body (21), and the through holes are communicated with a bottom space (214) of the box body;

the filter layer (23) is arranged on the shelf (22).

2. The sample box according to claim 1, wherein the transparent viewing window (211) is formed of glass and has a scale formed thereon.

3. The sample box as claimed in claim 1, wherein the box body (21) further comprises a plurality of hanging rings (216) formed on a top side wall.

4. The sample chamber as claimed in claim 1, wherein the fixing member (212) has a hole formed thereon.

5. A sample box according to claim 1, characterized in that the filter layer (23) is a sintered copper plate.

6. A sample chamber according to claim 1, characterized in that the shelf (22) is formed to comprise a recess on which the opening (221) is formed and a peripheral flange portion which is supported above the support member (213).

7. A sample chamber as claimed in claim 1, characterized in that said chamber body (21) is globally cylindrical or quadrangular.