Deep layer section soil sampler and sampling method thereof

A soil sampler and sampler technology, applied in the direction of sampling devices, etc., can solve the problems of large destructiveness, soil layer cracking, compaction, compaction, disturbing soil, etc., and achieve the effect of easy separation, non-deformation, and simple operation

Inactive Publication Date: 2009-12-09
HOHAI UNIV
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AI-Extracted Technical Summary

Problems solved by technology

[0004] 1. Traditional soil samplers are mostly closed or semi-closed systems. When the sampler is driven into or pulled out of the soil, due to the twisting and extrusion of the sampler, it is easy to cause the cracking, compression and compaction of the soil layer and disturb the soil. state, which affects the authenticity of sampling;
[0005] 2. Sampling with ordinary samplers, most of them can only collect surface soil samples, and cannot coll...
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Abstract

The invention relates to a deep layer section soil sampler and sampling method thereof, belonging to the ecologic study field of soil science, environmental science, and the like. The invention comprises an inverted triangular pyramidal main sampler, a seal sheet, a fixer and a tripod, the transversal surface of the main sampler is an equilateral right-angled triangle, a longitudinal opening is arranged along the bevel edge of the main sampler, the sealing strip fits the longitudinal opening, the upper end of the main sampler and the upper end of the sealing strip are respectively provided with an extension piece, the two adjacent right-angle sides of the main sampler are respectively provided with a connecting round hole, the sidewall of the sealing strip is provided with a connecting hole corresponding with the connecting round hole; the fixer is arranged in the interior of the upper part of the main sampler and is respectively connected with the main sampler and the sealing strip by a strengthened screw; the upper end of the fixer is provided with a round ring; and the lower end of the tripod is connected with an engineering pulley and the end part of the engineering pulley is connected with a hook. The invention has the characteristics that disturbance on soil is small, a mass of soil samples can be obtained, soil samples can be collected quantitatively in constant height, and soil is easy to separate from the sampling device.

Application Domain

Technology Topic

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  • Deep layer section soil sampler and sampling method thereof
  • Deep layer section soil sampler and sampling method thereof
  • Deep layer section soil sampler and sampling method thereof

Examples

  • Experimental program(1)

Example Embodiment

[0036] The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings:
[0037] Such as figure 1 As shown, the present invention includes a main sampler 1, a cover sheet 2, a holder 5, and a tripod 7 in an inverted triangular cone. The cross section of the main sampler 1 is an equilateral right triangle, and the main sampler 1 is arranged longitudinally along the hypotenuse. The opening 3, the cover piece 2 and the longitudinal opening 3 are matched, the upper ends of the main sampler 1 and the cover piece 2 are respectively provided with extension pieces, and the main sampler 1 is respectively horizontally provided with connecting circular holes 4 on two adjacent right-angle side side walls, The side wall of the cover sheet 2 is provided with a connecting hole corresponding to the above-mentioned connecting circular hole 4; the fixer 5 is arranged inside the upper end of the main sampler 1, and the fixer 5 is respectively connected to the main sampler 1 and the cover sheet 2 by strengthening screws 6; The upper end of the holder 5 is provided with a ring 51; the lower end of the tripod 7 is connected to an engineering pulley 8, and the end of the engineering pulley 8 is connected to a hook 81.
[0038] The length of the right-angle side of the cross section of the main sampler 1 of the present invention is 10cm-6cm; the length of the hypotenuse is 15cm-8cm. The longitudinal opening 3 of the present invention is provided with barriers opposite to each other, and the length of the cross section of the barrier is 4 cm to 1 cm.
[0039] The sampling method of the deep profile soil sampler based on the present invention includes the following steps:
[0040] Step 1: Drive the main sampler 1 into the corresponding depth according to the sampling depth. If you need a large amount of bottom soil, you can continue to drive to the depth by 10-20cm;
[0041] Step 2: Push the cover sheet 2 into the soil layer close to the longitudinal opening 3 of the main sampler 1;
[0042] Step 3: Drive the cover sheet 2 into the same depth as the main sampler 1, and keep the circular hole 4 on the side wall of the sampler on the same horizontal line. At this time, the soil sample has been sealed by the sampler;
[0043] Step 4: Insert the holder 5 into the sampler exposed on the surface, and keep the screw of the holder 5 corresponding to the connecting hole 4 of the side wall;
[0044] Step 5: Fix the holder 5 with the cover plate 2 and the main sampler 1 with the strengthening screws 6;
[0045] Step 6: Fix the steel tripod 7 on the ground, keep the center point of the tripod and the ring on the holder 5 in the vertical direction, hang the hook of the pulley 8, and slowly lift the sampler;
[0046] Step 7: After the main sampler 1 is completely raised to the surface, it is placed at a level, the holder 5 is removed, the cover sheet 2 is taken out, and the soil samples are collected and sorted in layers.
[0047] The cross-section of the main sampler 1 of the present invention is an equilateral right triangle. The upper side of the sampler is 10 cm long and the opening is 15 cm long, and the lower side is 6 cm long. The opening side length is 8 cm. The total length of the sampler is 150, There are three kinds of 200cm and 250cm. The longitudinal opening 3 of the main sampler 1 is 4 cm wide at the upper edge and equal on both sides, and 1 cm at the lower edge and equal on both sides. Cover sheet 2 is 8cm wide at the bottom edge and 15cm wide at the top edge. In order to facilitate the penetration into the soil, the upper edges of the main sampler 1 and the cover sheet 2 are welded on the upper part of a titanium steel alloy with a thickness of 2 cm and a width of 3 cm. The holder 5 is a pentahedron with the same equilateral right-angled triangle shape on the upper and lower sides, the right-angle side length is 8 cm, the base side length is 12 cm, and the pentahedron is 3 cm high. A 5cm-long screw hole is drilled in the proportion corresponding to the connecting circular hole 4 of the fixing device 5 and the side wall. The reinforced screw 6 is a titanium steel alloy material with a diameter of 0.1 inches. The tripod 7 is made of steel and has a height of 320 cm. The minimum distance from the bottom of the engineering pulley 8 to the ground is 280cm.
[0048] Combine Figure 2~8 The sampling process of the in-situ non-destructive deep section soil sampler is further described, by figure 1 , 2 It can be seen that the main part of the soil sampler is the triangular cone main sampler (1) and the cover sheet 2. First, select a typical soil type for sample collection, and then, as image 3 As shown, the main sampler 1 is driven into the corresponding depth according to the sampling depth. If the bottom soil is required to be larger, you can continue to drive to the depth by 10-20cm; Figure 4 , Drive the cover sheet 2 into the soil layer close to the longitudinal opening 3 of the main sampler 1; Figure 5 , Drive the cover sheet 2 into the same depth as the main sampler 1, and keep the circular hole 4 on the side wall of the sampler at the same level. At this time, the soil sample has been sealed by the sampler; Figure 6 As shown, insert the steel holder 5 into the sampler exposed on the surface, and keep the screw of the holder 5 corresponding to the connecting hole 4 of the side wall, and use the strengthened screw 6 to connect the holder 5 with the cover plate 2 and the main Sampler 1 is fixed; such as Figure 7 As shown, fix the steel tripod 7 on the ground, keep the center point of the tripod and the ring on the holder 5 in the vertical direction, hang the hook of the pulley 8, and slowly lift the sampler; after the sampler is completely raised to the surface, as Figure 8 As shown, place it at a level, remove the holder 5, and pull out the cover sheet 2, and then the soil samples can be collected and sorted in layers.
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PUM

PropertyMeasurementUnit
Length1.0 ~ 4.0cm
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

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