CN219736979U - Geotextile seam tensile strength test sample preparation device - Google Patents

Abstract

The utility model relates to a geotextile joint tensile strength test sample preparation device. The utility model aims to accurately and rapidly cut the geotextile seam tensile strength test sample, so that the test speed is greatly improved, and the accurate size of the sample is ensured. The technical scheme of the utility model is as follows: the device comprises: the device comprises a first square plate, a second square plate, a third square plate, a seam line, a jaw line and a handle; the first square plate, the second square plate and the third square plate are rectangular, the long sides of the first square plate and the second square plate are vertically connected, and the long side of the second square plate is vertically connected with the long side of the third square plate; the number of the second square plates and the third square plates is two, and the second square plates and the third square plates are symmetrically arranged on two sides of the first square plates; the seam line is overlapped with the long edge of the first square plate; the number of the jaw lines is two, and the jaw lines are arranged on the third square plate and are parallel to the seam lines and symmetrically arranged on two sides. The utility model is suitable for the field of geotextile tests.

Description

Geotextile seam tensile strength test sample preparation device

Technical Field

The utility model relates to the field of geotextile tests, in particular to a geotextile joint tensile strength test sample preparation device.

Background

Geotextiles are one of very important materials in engineering construction, are widely applied to the construction fields of traffic, energy sources, water conservancy, environment and the like, and along with the wider application, the width of the geotextiles is also larger and larger, but the width of the geotextiles cannot meet the engineering requirements anyway, and the geotextiles need to be spliced in construction. Therefore, besides the performance of the geotextile, the splicing quality of the geotextile directly influences the engineering quality.

The geotextile seam tensile strength test requires cutting multiple geotextile samples, each containing a seam or joint, and clamping the samples to test the geotextile seam tensile strength. However, the current seam tensile strength test sample preparation and cutting generally adopts manual ruler quantity positioning, which not only requires longer time and low work efficiency, but also has inaccurate cutting size, thus affecting the accuracy of test results.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a geotextile seam tensile strength test sample preparation device, which can accurately and rapidly cut geotextile seam tensile strength test samples, greatly improve test speed and ensure accurate sample size, and has the following technical scheme:

comprises a first square plate 1, a second square plate 2, a third square plate 3, a seam line 4, a jaw line 5 and a handle 6;

the first square plate 1, the second square plate 2 and the third square plate 3 are rectangular, the long sides of the first square plate 1 and the second square plate 2 are vertically connected, and the long side of the second square plate 2 is vertically connected with the long side of the third square plate 3; the number of the second square plates 2 and the third square plates 3 is two, and the second square plates 2 and the third square plates 3 are symmetrically arranged on two sides of the first square plate 1; the seam line 4 is overlapped with the long side of the first square plate 1; the number of the jaw lines 5 is two, and the jaw lines are arranged on the third square plate 3 and are parallel to the seam lines 4 and are symmetrically arranged on two sides.

Preferably, the handle 6 is arranged in the center of the surface of the first square plate 1.

Preferably, the first square plate 1, the second square plate 2 and the third square plate 3 are made of organic glass, plastic or metal.

The beneficial effects of the utility model are as follows:

1. the utility model can accurately and rapidly cut the geotextile seam tensile strength test sample, and the sample preparation work is accurate and efficient.

2. The sizes of the square plate and the jaw line are matched with the requirements of test samples, so that the test speed is greatly improved, the sample size is accurate, and the accurate and reliable test result is ensured.

3. The utility model is provided with the handle, so that the operation and the use of the device are convenient.

Drawings

FIG. 1 is a schematic structural view of a geotextile seam tensile strength test sample preparation device provided by the utility model;

FIG. 2 is a schematic diagram of a geotextile seam tensile strength test;

reference numerals illustrate: 1-a first square plate; 2-a second square plate; 3-a third-party plate; 4-seam line; 5-jaw line; 6-handle.

Detailed Description

The utility model is further described below with reference to examples. The following examples are presented only to aid in the understanding of the utility model. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present utility model without departing from the principles of the utility model, and such modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Example 1:

in the geotextile seam tensile strength test, each test specimen contains a seam or joint, and the test specimen has a length of not less than 200mm and is perpendicular to the direction of the applied force. The final width of each specimen was 200mm, and the specimens were cut as shown in FIG. 2, with an angle A of 90.

When the test is used for clamping the sample, firstly, the distance between the upper clamp and the lower clamp of the instrument is corrected to be 100mm, the width of the joint or the joint is added, the joint or the joint of the sample is clamped in the clamp in the middle, the length direction of the sample is parallel to the stress direction of the load, the distance between the edge of the joint or the joint and the jaw of the clamp is 50mm, and normally, two marking lines which are transverse to the width direction of the sample and are 50mm away from the edge of the joint or the joint are drawn in advance, so that the two marking lines coincide with the edges of the jaws of the upper clamp and the lower clamp as much as possible when the sample is clamped.

However, the existing test sample preparation is not accurate in cutting size and low in work efficiency.

In this regard, the present utility model provides a geotextile seam tensile strength test sample preparation apparatus, as shown in fig. 1, comprising:

a first square plate 1, a second square plate 2, a third square plate 3, a seam line 4, a jaw line 5 and a handle 6;

the first square plate 1, the second square plate 2 and the third square plate 3 are rectangular, the long sides of the first square plate 1 and the second square plate 2 are vertically connected, and the long side of the second square plate 2 is vertically connected with the long side of the third square plate 3; the number of the second square plates 2 and the third square plates 3 is two and the second square plates and the third square plates are symmetrically arranged on two sides of the first square plate 1. The first square plate 1, the second square plate 2 and the third square plate 3 are made of organic glass, plastic or metal.

Specifically, the first square plate 1 has a length×width equal to 250mm×50mm, the second square plate 2 has a length×width equal to 250mm×25mm, and the third square plate 3 has a length×width equal to 200mm×75mm. The thickness was 2mm. The dimensions of the first square plate 1, the second square plate 2 and the third square plate 3 are matched with those of the test sample.

Two seam lines 4 are overlapped with the long side of the square plate 1, and the width of the seam lines 4 is 1mm.

The two jaw lines 5 are arranged on the third square plate 3, are parallel to the joint line and 50mm away from the joint line, and are symmetrically arranged on two sides of the joint line. The width of the jaw line is 1mm. The spacing of the jaw lines 5 is matched to the test specimen requirements.

The handle 6 is arranged in the center of the surface of the first square plate 1.

Example 2:

when the sample is cut, the replaced surface geotextile seam or joint sample is flatly placed on a workbench, and the sample is flat and has no obvious appearance defects such as crease. The device is horizontally placed on a sample, the length direction of the device is vertical to a joint or a joint of the geotechnical fabric, a handrail handle 6 is pressed by one hand, a marking pen is used for marking the periphery of the device by one hand, the handle 6 is lifted to take the device off after the drawing is finished, then the sample is cut for the first time by scissors or an artist knife, the cutting width is carried out according to the line drawn by the device, the length direction is properly enlarged according to the width of the joint or the joint, and the length of the sample is ensured to meet the distance between an upper clamp and a lower clamp and the width of the joint or the joint and the upper clamp and the lower clamp.

And then carrying out a second marking mark, flatly placing the geotextile seam or joint sample after the first cutting on a workbench, flatly placing the device on the sample, enabling the length direction of the device to be perpendicular to the geotextile seam or joint, and ensuring that the width direction of the device is completely overlapped with the sample. Pressing the handle 6 by one hand, slightly moving the device up and down to enable the seam line 4 on one side to be completely overlapped with the seam or joint on one side of the sample, and then marking the seam line 4 by using a marker pen, and simultaneously marking the jaw line 5 on the side; and then the device is not lifted, the device is still moved up and down only slightly, when the other side seam line 4 is completely overlapped with the seam or joint at the other side of the sample, the device is stopped to be moved, the mark is drawn along the other side seam line 4 by using a marker pen, and meanwhile, the mark is drawn on the other side jaw line 5.

And carrying out a test on the cut sample after the cut sample is subjected to humidity conditioning treatment according to requirements. The sample is mounted, and clamped along the line drawn by the jaw line 5 by the two clamping jaws, so that the two marking lines are overlapped with the edges of the upper and lower clamping jaws as much as possible when the sample is clamped.

Claims (3)

1. A geotextile seam tensile strength test sample preparation device, comprising: the device comprises a first square plate (1), a second square plate (2), a third square plate (3), a seam line (4), a jaw line (5) and a handle (6);

the first square plate (1), the second square plate (2) and the third square plate (3) are rectangular, the long sides of the first square plate (1) and the second square plate (2) are vertically connected, and the long side of the second square plate (2) is vertically connected with the long side of the third square plate (3); the number of the second square plates (2) and the number of the third square plates (3) are two, and the second square plates and the third square plates are symmetrically arranged on two sides of the first square plate (1); the seam line (4) is overlapped with the long side of the first square plate (1); the number of the jaw lines (5) is two, and the jaw lines are arranged on the third-shaped plate (3) and are parallel to the seam lines (4) and are symmetrically arranged on two sides.

2. Geotextile seam tensile strength test sample preparation device according to claim 1, characterized in that the handle (6) is arranged centrally on the surface of the first square plate (1).

3. The geotextile seam tensile strength test sample preparation device according to claim 1, wherein the first square plate (1), the second square plate (2) and the third square plate (3) are made of organic glass, plastic or metal.