CN217931030U

CN217931030U - Even preparation facilities of experimental soil sample

Info

Publication number: CN217931030U
Application number: CN202221802393.4U
Authority: CN
Inventors: 徐文栋; 杜晨妍; 吕博文; 余帅
Original assignee: Ningxia University
Current assignee: Ningxia University
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-29
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to an experimental technical field of soil sample, and an even preparation facilities of experimental soil sample is disclosed, including soil sample shaping pipe, soil sample shaping pipe includes tube sheet one, tube sheet two and tube sheet three, and tube sheet one, the circular shape forming pipe is spliced into through the pipe clamp in the three outsides of tube sheet two and tube sheet, and experimental soil sample is located the shaping pipe, and the sleeve pipe is installed at tube sheet top, has seted up the charge door on the tube sheet one of sleeve pipe position, is equipped with the plunger in the charge door, and the restriction frame of restriction plunger is installed at tube sheet top, and hydraulic telescoping rod is all installed to the position of controlling of soil sample shaping pipe. Push simultaneously to the centre through utilizing hydraulic telescoping rod to follow soil sample forming tube both ends and carry out the compaction, add the sample soil through even charge door intermittent type simultaneously, form anterior segment soil and still not compact, back end soil adds again for the soil sample begins to obtain stable pressure from the centre always, and the soil sample each position after the shaping is more even, has solved the even not high problem of soil sample that current both ends compaction method was made.

Description

Even preparation facilities of experimental soil sample

Technical Field

The utility model relates to a soil sample test technical field specifically is an even preparation facilities of experimental soil sample.

Background

The precision of the triaxial compression test mainly depends on the prepared sample, and the remolded soil sample of the triaxial compression test needs to be made into a cylinder. At present, a two-end compaction method used in preparation of a triaxial remolded soil sample adopts a method of respectively compacting the upper part and the lower part of a sample barrel, the method has the advantages of convenient operation and controllable design of the dry density of the whole sample, and has the defects that the sample is not manufactured uniformly, the upper end and the lower end of the sample are often compact, and the middle of the sample is relatively loose.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an even preparation facilities of experimental soil sample possesses the more even advantage of soil sample each position, has solved the inhomogeneous problem of soil sample that the both ends compaction method was made in the preparation of current triaxial remolded soil sample.

(II) technical scheme

In order to solve the above problem, the utility model provides a following technical scheme:

the utility model provides an even preparation facilities of experimental soil sample, includes the soil sample forming tube, the soil sample forming tube includes tube sheet one, tube sheet two and tube sheet three, and tube sheet one, tube sheet two and the three outsides of tube sheet are through the fixed circular shape forming tube that splices into of pipe clamp restriction, and experimental soil sample is located the forming tube, and five at least sleeve pipes are evenly installed at tube sheet top, have seted up the charge door on tube sheet one of sleeve pipe position, are equipped with the plunger in the charge door, and the restriction frame of restriction plunger is installed at tube sheet top, and hydraulic telescoping rod is all installed to the position about the soil sample forming tube.

Preferably, the limiting frame comprises an upper limiting sliding seat arranged on the tube plate in the front and at the back of the sleeve, a fixed plate is movably connected in a limiting sliding groove of the limiting sliding seat, the top of the front and back fixed plates is fixed through a limiting plate, the bottom of the limiting plate is abutted to the top of the plunger, soil expands when compacted, the plunger is fixed through the limiting frame, and the plunger is prevented from being pushed by soil to move.

Preferably, a supporting table is installed at the middle position of the top of the base, a fixing frame is installed at the position, close to the left side and the right side, of the top of the base, the hydraulic telescopic rod is installed on the fixing frame through telescopic rod fixing pieces, and the placing and installing are simple and mean square.

Preferably, the arc-shaped concave part at the top of the supporting table is arranged, and the soil sample forming pipe is placed on the supporting table to form fixation and stable placement.

Preferably, the side is equipped with flange and recess respectively around pipe sheet one, pipe sheet two and the pipe sheet three, and the flange on pipe sheet one, pipe sheet two and the pipe sheet three offsets with the recess, and interface position is more sealed, and soil is difficult for forming great protrusion in seam position, ensures that sample structure is complete, and three pipe sheet concatenation combination, more convenience when the soil sample is taken, difficult destruction soil sample.

Preferably, the limiting blocks are arranged at the positions, close to the left end and the right end, of the bottoms of the second tube plate and the third tube plate, the limiting blocks abut against the side edges of the supporting table to form limiting, the whole forming tube is not easy to push during compaction, and the compaction of an internal sample is facilitated to be uniform.

(III) advantageous effects

Compared with the prior art, the utility model provides an even preparation facilities of experimental soil sample possesses following beneficial effect:

1. this even preparation facilities of experimental soil sample pushes away simultaneously to the centre through utilizing hydraulic telescoping rod to follow soil sample forming tube both ends and carries out the compaction, adds the sample soil through even charge door intermittent type simultaneously, forms anterior segment soil and still not compact, and back end soil adds again for the soil sample begins to obtain stable pressure from the centre always, and the soil sample each position after the shaping is more even, has solved the even not high problem of soil sample that current both ends compaction method was made.

2. This even preparation facilities of experimental soil sample staggers through flange and recess on tube sheet one, tube sheet two and the tube sheet three and offsets, and interface position is more sealed, and soil is difficult for forming great protrusion in seam position, ensures that the sample structure is complete, and three tube sheet concatenation combination, and more convenience when soil sample takes, the difficult soil sample that destroys.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of the middle soil sample forming tube of the present invention;

FIG. 3 is a partial view of the soil sample forming tube of the present invention;

fig. 4 is a cross-sectional view of the first tube plate of the present invention.

In the figure: 1. a base; 11. a support table; 12. a fixed mount; 2. forming a pipe for the soil sample; 21. a first tube plate; 22. a second tube plate; 23. a tube plate III; 231. a feed inlet; 24. a sleeve; 25. a limiting block; 26. a plunger; 27. a restraint frame; 271. a limiting sliding seat; 272. a fixing plate; 273. a limiting plate; 28. a flange; 29. a groove; 3. a hydraulic telescopic rod; 31. a telescopic rod fixing piece; 4. a pipe clamp; 5. and (6) testing a soil sample.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, a device for uniformly preparing a test soil sample comprises a base 1, a soil sample forming pipe 2 and a hydraulic telescopic rod 3;

a supporting table 11 is welded at the middle position of the top of the base 1, the top of the supporting table 11 is arranged in an arc-shaped concave manner, fixing frames 12 are welded at the positions close to the left side and the right side of the top of the base 1, and the hydraulic telescopic rod 3 is arranged on the fixing frames 12 through telescopic rod fixing pieces 31;

the soil sample forming pipe 2 is placed on the support table 11 to be fixed, the soil sample forming pipe 2 comprises a first arc-shaped pipe plate 21, a second arc-shaped pipe plate 22 and a third arc-shaped pipe plate 23, flanges 28 and grooves 29 are respectively arranged on the front side and the rear side of the first arc-shaped pipe plate 21, the second arc-shaped pipe plate 22 and the third arc-shaped pipe plate 23, the flanges 28 and the grooves 29 on the first arc-shaped pipe plate 21, the second arc-shaped pipe plate 22 and the third arc-shaped pipe plate 23 are staggered and abutted to form a circular forming pipe, the test soil sample 5 is located in the forming pipe, and the outer sides of the first arc-shaped pipe plate 21, the second arc-shaped pipe plate 22 and the third arc-shaped pipe plate 23 are limited and fixed through pipe clamps 4;

the positions of the bottom of the second tube plate 22 and the bottom of the third tube plate 23 close to the left end and the right end are respectively welded with a limiting block 25, the limiting blocks 25 abut against the side edge of the support table 11 to form limiting, the top of the first tube plate 21 is uniformly welded with five sleeves 24, and the first tube plate 21 at the positions of the sleeves 24 is provided with a feed inlet 231;

be equipped with plunger 26 in the charge door 231, restriction frame 27 of restriction plunger 26 is installed at first 21 tops of tube sheet, restriction frame 27 includes spacing slide 271, fixed plate 272 and restriction board 273, spacing slide 271 is provided with two, welded mounting is respectively on tube sheet 21 around sleeve pipe 24, fixed plate 272 bottom extends and forms spacing swing joint in the spacing spout of spacing slide 271, through restriction board 273 welded fastening between the front and back fixed plate 272 top, restriction board 273 bottom offsets with the plunger 26 top.

The working principle and the using process of the utility model are that the pipe plate I21, the pipe plate II 22 and the pipe plate III 23 are spliced by dislocation of the flange 28 and the groove 29 before use, the pipe clamp 4 is used for strengthening and fixing, then the pipe clamp is placed on the supporting table 11, the sample soil is evenly divided into five parts, the funnel is used for adding a part of sample soil from the feed inlet 231 of the middle position firstly, the plunger 26 is placed into the feed inlet 231, the movement limiting plate 273 is used for limiting, the hydraulic telescopic rod 3 is controlled to extend into the soil sample forming pipe 2 for preliminary undercompaction, then the funnel is withdrawn, then a part of sample soil is added from the second feed inlet 231 of the left side and the right side respectively, the hydraulic telescopic rod 3 is restarted for undercompaction, finally, the residual soil sample is added from the first feed inlet 231 of the left side and the right side, the hydraulic telescopic rod 3 is controlled to be compacted, the soil sample of the middle position is initially undercompacted, the subsequent soil sample is added and compacted in the process, the process is synchronously extruded, the positions of the molded soil sample are more even, and the problem that the soil sample is not high by the existing two-end compacting method is solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. The utility model provides an even preparation facilities of experimental soil sample, includes soil sample forming tube, its characterized in that: soil sample forming tube includes tube sheet one, tube sheet two and tube sheet three, and the fixed circular shape forming tube that splices into is restricted through the pipe clamp in tube sheet one, tube sheet two and the three outsides of tube sheet, and experimental soil sample is located the forming tube, and five at least sleeve pipes are evenly installed at tube sheet top, have seted up the charge door on the tube sheet one of sleeve pipe position, are equipped with the plunger in the charge door, and the restriction frame of restriction plunger is installed at tube sheet top, and hydraulic telescoping rod is all installed to the position about soil sample forming tube.

2. The device for uniformly preparing the test soil sample according to claim 1, characterized in that: the limiting frame comprises an upper limiting sliding seat arranged on the tube plate in front of and behind the sleeve, a fixing plate is movably connected in a limiting sliding groove of the limiting sliding seat in a limiting mode, the top of the front fixing plate and the top of the rear fixing plate are fixed through a limiting plate, and the bottom of the limiting plate is abutted to the top of the plunger.

3. The device for uniformly preparing the test soil sample according to claim 1, wherein: a supporting table is installed at the middle position of the top of the base, a fixing frame is installed at the position, close to the left side and the right side, of the top of the base, and the hydraulic telescopic rod is installed on the fixing frame through a telescopic rod fixing piece.

4. The device for uniformly preparing the test soil sample according to claim 3, wherein: the arc-shaped concave part at the top of the supporting table is arranged, and the soil sample forming pipe is placed on the supporting table to be fixed.

5. The device for uniformly preparing the test soil sample according to claim 4, wherein: flanges and grooves are respectively arranged on the front side and the rear side of the first tube plate, the second tube plate and the third tube plate, and the flanges and the grooves on the first tube plate, the second tube plate and the third tube plate are staggered and abutted.

6. The device for uniformly preparing the test soil sample according to claim 5, wherein: and limiting blocks are arranged at the positions, close to the left end and the right end, of the bottoms of the second tube plate and the third tube plate, and the limiting blocks abut against the side edges of the supporting table to form limiting.