In-situ density testing device for irrigation method

Abstract

The utility model provides an in-situ density testing device for an irrigation method, which comprises a supporting seat sleeve and a supporting ring sleeve, the supporting seat sleeve comprises a first supporting sleeve, a first flange plate is arranged on the periphery of the first supporting sleeve, first through holes are arrayed on the first flange plate, and supporting columns are arrayed on the lower end face of the first flange plate; the supporting ring sleeve comprises a second supporting sleeve, a second flange plate is arranged on the periphery of the second supporting sleeve, second through holes are formed in the second flange plate in an array mode, the supporting ring sleeve is arranged on the periphery of the supporting seat sleeve in a sleeving mode and used for fixing the plastic film, and plug pins are arranged in the first through holes and the second through holes and used for fixing the supporting ring sleeve and the supporting seat sleeve. The support ring sleeve is sleeved on the support seat sleeve, the plastic film is arranged between the support ring sleeve and the support seat sleeve, and the plastic film in a test pit is fixed when the support ring sleeve and the support seat sleeve are sleeved and attached, so that the plastic film is prevented from being manually lifted and fixed by hands during an irrigation method test, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical testing, in particular to an in-situ density testing device used for a water-filling method. Background Art

[0002] In the in-situ density test by water filling method required by GB / T50123-2019 Geotechnical Test Method Standard,

[0003] First, you need to dig a pit according to the size of the test pit, then lay a plastic film in the test pit and fill the test pit with water to measure the volume of water filled in the test pit. The existing plastic film is fixed manually after laying, and the entry end needs to be controlled at the same time. Therefore, at least two people are required to cooperate to realize the volume measurement of water filled in the pit. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide an in-situ density testing device for the water filling method, which performs a water filling test after fixing a plastic film support ring sleeve on the upper outer edge of the test pit. Therefore, there is no need to manually fix the plastic film, and the test can be carried out by a single person, saving labor costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An in-situ density test device for a water-filling method, characterized in that it comprises a support seat sleeve and a support ring sleeve, the support seat sleeve comprises a first support sleeve, a first flange plate is arranged on the outer periphery of the first support sleeve, a first through hole is arrayed on the first flange plate, and a support column is arrayed on the lower end surface of the first flange plate; the support ring sleeve comprises a second support sleeve, a second flange plate is arranged on the outer periphery of the second support sleeve, a second through hole is arrayed on the second flange plate, the inner diameter of the second support sleeve is larger than the inner diameter of the first support sleeve, the support ring sleeve is arranged on the outer periphery of the support seat sleeve for fixing a plastic film, and pins for fixing the support ring sleeve and the support seat sleeve are arranged in the first through hole and the second through hole.

[0007] Furthermore, the upper end surface of the first support sleeve is an arc-shaped surface.

[0008] Furthermore, a pair of drawing members are arranged on the first flange plate, and the pair of drawing members are axially symmetrical along the central axis of the first supporting sleeve.

[0009] Furthermore, the support columns are vertically arranged at the center of the lower end surface of the first flange plate, and the support columns are arranged in an equidistant array.

[0010] Furthermore, the number of the support columns is at least two.

[0011] Further, the number of the first through holes is equal to the number of the second through holes, and the first through holes and the second through holes are arranged in an array with equal spacing.

[0012] Furthermore, the first through hole and the corresponding second through hole are connected vertically.

[0013] Furthermore, the number of the first through holes is at least two.

[0014] Furthermore, the pulling member is an L-shaped pulling rod.

[0015] Furthermore, it also includes a first gasket and a second gasket, the first gasket is arranged at the upper end of the first flange plate, and the first gasket is provided with a third through hole corresponding to the first through hole; the second gasket is arranged at the lower end of the second flange plate, and the second gasket is provided with a fourth through hole corresponding to the second through hole.

[0016] The utility model adopts the above technical solution, which has the following advantages:

[0017] The utility model provides an in-situ density testing device for a water-filling method, in which a supporting ring sleeve is sleeved on a supporting seat sleeve, and a plastic film is arranged between the supporting ring sleeve and the supporting seat sleeve. When the supporting ring sleeve and the supporting seat sleeve are sleeved and fitted together, the plastic film in the test pit is fixed, thereby avoiding the need for manual lifting and fixing of the plastic film during the water-filling method test, thereby saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the support seat cover structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the support ring structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the assembly structure during the test of the utility model.

[0021] The figure numbers are as follows: 1-support ring sleeve, 011-second support sleeve, 012-second flange plate, 013-second through hole, 2-pin, 3-support seat sleeve, 031-pulling piece, 032-first support sleeve, 033-first flange plate, 034-first through hole, 035-support column. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0023] like Figure 1-Figure 3As shown. The utility model provides an in-situ density test device for water injection method, comprising a support seat sleeve 3 and a support ring sleeve 1, wherein the support seat sleeve 3 comprises a first support sleeve 032, which is a cylindrical body structure that penetrates from top to bottom, and a first flange plate 033 is arranged on the outer periphery of the first support sleeve 032, and the first flange plate 033 is an annular flange plate, and the first flange plate 033 is arranged on the outer periphery of the lower end of the first support sleeve 032 and is integrated with it. A plurality of first through holes 034 are arrayed on the first flange plate 033, and a plurality of support columns 035 are arrayed on the lower end surface of the first flange plate 033, and the support columns 035 are used to be inserted into the soil layer on the outer periphery of the test pit to fix the support seat sleeve 3. The support ring sleeve 1 comprises a second support sleeve 011, which is a cylindrical body structure that penetrates from top to bottom, and the inner diameter of the second support sleeve 011 is larger than the inner diameter of the first support sleeve 032, so that the second support sleeve 011 can be arranged in the first support sleeve 032 to achieve mutual nesting. The outer periphery of the second support sleeve 011 is provided with a second flange plate 012, which is also an annular flange plate. The second flange plate 012 is provided on the outer periphery of the lower end of the second support sleeve 011 and is integrated with it. The outer diameter of the second flange plate 012 is smaller than the outer diameter of the first flange plate 033. A plurality of second through holes 013 are arranged in an array on the second flange plate 012. When the support ring sleeve 1 is sleeved on the outer periphery of the support seat sleeve 3 for fixing the plastic film, the second through hole 013 and the first through hole 034 are connected vertically. After the first through hole 034 and the second through hole 013 are connected vertically, a latch 2 is provided in the first through hole 034 and the second through hole 013 for fixing the support ring sleeve 1 and the support seat sleeve 3. The support ring sleeve 1 and the support seat sleeve 3 can imprison the upper end of the plastic film at the upper periphery of the test pit.

[0024] Furthermore, when the support ring sleeve 1 and the support seat sleeve 3 are ring-engaged, the plastic film needs to pass through the upper end of the first support sleeve 032 and turn outward. In order to prevent the plastic film from being damaged when turning over, the upper end surface of the first support sleeve 032 is set as an arc surface.

[0025] Furthermore, in order to facilitate the installation and removal of the support seat cover 3, a pair of pullers 031 are provided on the outer periphery of the first flange plate 033. The pair of pullers 031 are axially symmetrically arranged along the central axis of the first support sleeve 032 for pulling up or pressing down the support seat cover 3. When installing the support seat cover 3, the support column 035 is inserted into the soil layer around the test pit by manually pressing down the puller 031. When the support seat cover 3 is removed after the test, the support column 035 is pulled out by manually pulling up the puller 031.

[0026] As a preferred embodiment, the pulling member 031 is an L-shaped pulling rod, the lower end of the L-shaped pulling rod is connected to the upper end surface of the first flange plate 033 , and the upper end of the L-shaped pulling rod extends toward the outer periphery of the first supporting sleeve 032 .

[0027] As a preferred embodiment, the pulling member 031 is a T-shaped pull ring, which includes a fixing rod and a pull ring, wherein the lower end of the fixing rod is connected to the upper end surface of the first flange plate 033, and the pull ring is connected to the upper end of the fixing rod.

[0028] Furthermore, in order to prevent the support column 035 from damaging the inner circumference of the test pit when it is inserted into the soil layer, the support column 035 is vertically arranged at the center of the lower end surface of the first flange plate 033, preferably away from the inner circumference of the first flange plate 033. The support column 035 is arranged in an equidistant array to facilitate uniform insertion into the soil layer so that the soil layer around the test pit is evenly stressed.

[0029] As a preferred embodiment, the number of the support columns 035 is at least two, and the two support columns 035 are symmetrical so as to better bear the force when inserted into the soil layer.

[0030] Furthermore, in order to facilitate the insertion of the plug 2, the number of the first through holes 034 is equal to the number of the second through holes 013, the aperture of the first through hole 034 is the same as the aperture of the corresponding second through hole 013, and the first through holes 034 and the second through holes 013 are arranged in an equidistant array. When the support ring sleeve 1 and the support seat sleeve 3 are nested with each other, there is no need to consider the direction of the support ring sleeve 1, so that the first through holes 034 and the second through holes 013 are aligned up and down.

[0031] As a preference, the number of the first through holes 034 is at least two, and the two first through holes 034 may be symmetrically arranged.

[0032] Furthermore, in order to prevent the plastic film from being crushed by the supporting ring sleeve 1 and the supporting seat sleeve 3, a first gasket is arranged on the outer periphery of the supporting seat sleeve 3, the first gasket is fitted on the upper end surface of the first flange plate 033, and the first gasket is provided with a third through hole corresponding to the first through hole 034; a second gasket is fitted on the lower end surface of the second flange plate 012 of the supporting ring sleeve 1, and the second gasket is provided with a fourth through hole corresponding to the second through hole 013.

[0033] As a preferred embodiment, the first gasket and the second gasket are made of elastic material, preferably rubber gaskets, and are fixed by gluing.

[0034] See again Figure 3 When the utility model is used, the support seat cover 3 is inserted into the dug test pit, and then a plastic film is laid in the test pit. The upper part of the plastic film covers the upper end of the support seat cover 3 and extends out of the outer periphery of the first flange plate 033. Then, the support ring sleeve 1 is sleeved on the support seat cover 3. The support seat cover 3 and the support ring sleeve 1 are fixed with the pin 2 to imprison the plastic film, and then the water filling test can be carried out. After the test is completed, the pin 2 is pulled out, and the support ring sleeve 1 and the support seat cover 3 can be disassembled in turn.

Claims

1. An in-situ density test device for water injection method, characterized in that: The invention comprises a support seat sleeve (3) and a support ring sleeve (1), wherein the support seat sleeve (3) comprises a first support sleeve (032), wherein a first flange plate (033) is arranged on the outer periphery of the first support sleeve (032), wherein a first through hole (034) is arranged in an array on the first flange plate (033), and a support column (035) is arranged in an array on the lower end surface of the first flange plate (033); the support ring sleeve (1) comprises a second support sleeve (011), wherein a second flange plate (012) is arranged on the outer periphery of the second support sleeve (011), wherein a second through hole (013) is arranged in an array on the second flange plate (012), wherein the support ring sleeve (1) is sleeved on the outer periphery of the support seat sleeve (3) for fixing a plastic film, and wherein pins (2) for fixing the support ring sleeve (1) and the support seat sleeve (3) are arranged in the first through hole (034) and the second through hole (013).

2. An in-situ density test device for water injection method according to claim 1, wherein: The upper end surface of the first support sleeve (032) is an arc-shaped surface.

3. An in-situ density test device for water injection method according to claim 1 or 2, wherein: A pair of drawing pieces are provided on the first flange plate (033), and the pair of drawing pieces are axially symmetrical along the central axis of the first support sleeve (032).

4. An in-situ density test device for water injection method according to claim 3, wherein: The support columns (035) are vertically arranged at the center of the lower end surface of the first flange plate (033), and the support columns (035) are arranged in an equidistant array.

5. An in-situ density test device for water injection method according to claim 4, wherein: The number of the support columns (035) is at least two.

6. An in-situ density test device for water injection method according to claim 5, wherein: The number of the first through holes (034) is equal to the number of the second through holes (013), and the first through holes (034) and the second through holes (013) are arranged in an equidistant array.

7. An in-situ density test device for water injection method according to claim 6, wherein: The first through hole (034) and the corresponding second through hole (013) are connected vertically.

8. An in-situ density test device for water injection method according to claim 7, wherein: The number of the first through holes (034) is at least two.

9. An in-situ density test device for water injection method according to claim 8, wherein: It also includes a first gasket and a second gasket, wherein the first gasket is arranged at the upper end of the first flange plate (033), and the first gasket is provided with a third through hole corresponding to the first through hole (034); the second gasket is arranged at the lower end of the second flange plate (012), and the second gasket is provided with a fourth through hole corresponding to the second through hole (013).

10. The in-situ density test device for water injection method according to claim 3, wherein: The pulling piece (031) is an L-shaped pulling rod.

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