On-site undisturbed soil block sampling device easy to transport and small in disturbance and sampling method of on-site undisturbed soil block sampling device
A sampling device and undisturbed technology, applied in the direction of sampling devices, etc., can solve the problems of easily destroying the original structure of undisturbed soil clods, difficult to ensure undisturbed soil clods in experiments, and close to the original state of soil, so as to be convenient for researchers and experimenters to use , large sample and good integrity
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Embodiment 1
[0035] Embodiment 1: see Figure 1-5 , an on-site undisturbed soil clod sampling device that is easy to transport and has little disturbance, includes a dowel bar 1, a box cover 2, a box shoe 7, a soil cutting board 9, a sealing board 11 and three box boards 5.
[0036] The dowel 1 is located at the center of the top of the case cover 2, the center of the top of the case cover 2 is the center of the top of the entire sampling device, the dowel 1 is fixedly connected with the case cover 2, so that the axial static load can be guaranteed The pressure is evenly transmitted to the box cover 2 to ensure that the box body plate 5 moves in the vertical direction. The edge positions of the three sides of the bottom of the box cover 2 are provided with mortises, and the mortises are arranged along the length direction of the sides. The tops of the three box panels 5 all have mortises, and the mortises and the mortises are slidingly fitted. During specific implementation, In order to m...
Embodiment 2
[0049] Example 2: see Figure 7 , an on-site undisturbed soil clod sampling method that is easy to transport and has little disturbance, is carried out using the on-site undisturbed soil clod sampling device described in Example 1, according to the triaxial test in the latest national standard "Standards for Geotechnical Test Methods" (GB / T 501232019) To the requirement of sample size, the specification size of sampling device described in embodiment 1 is: length 400mm * width 300mm * height 100mm, forms the undisturbed soil block sampling cavity, and this sampling method comprises the following steps:
[0050] S101: Determine the sampling area and make corresponding marks; specifically, determine the sampling area according to the geotechnical test requirements or geological survey results and make a sampling mark. The above warning signs are used to position and protect the sampling area to avoid damage. Sampling areas are generally open or semi-open areas during engineerin...
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