Deep layer section soil sampler and sampling method thereof

[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.