Soil sampling device for testing compactness of roadbed for engineering supervision

A technology of earth-taking device and compaction degree, which is applied in the field of soil-taking device for engineering supervision to test the degree of subgrade compaction, and can solve the problems of time-consuming and labor-intensive

Pending Publication Date: 2022-08-05
河北理工工程管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after the ring cutter is taken out from the road vertically upwards, it is necessary to use other auxiliary tools to remove the remaining soil at the bottom of the ring cutter, which is time-consuming and laborious.

Method used

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  • Soil sampling device for testing compactness of roadbed for engineering supervision
  • Soil sampling device for testing compactness of roadbed for engineering supervision
  • Soil sampling device for testing compactness of roadbed for engineering supervision

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Embodiment Construction

[0032] Attached to the following Figure 1-4 This application will be described in further detail.

[0033] The embodiment of the present application discloses a soil borrowing device for a roadbed compaction degree test for engineering supervision. refer to figure 1 , the soil extraction device includes an annular knife 1, the upper surface of the annular knife 1 is fixedly connected with a fixing frame 2, and the fixing frame 2 includes two fixed rods 21 and a connecting rod 22 fixed between the two fixed rods 21. Each fixed rod 21 are all arranged parallel to the axis of the annular knife 1 .

[0034] refer to figure 2 and image 3 , the bottom end of the annular knife 1 is slidably connected with two sliding blocks 3 , and the two sliding blocks 3 rotate around the axis of the annular knife 1 . The bottom end of each sliding block 3 is rotatably connected with a dividing needle 4 arranged vertically downward, and a driving assembly 5 is commonly connected to the two ...

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Abstract

The invention relates to a subgrade compactness test soil sampling device for engineering supervision, and relates to the field of subgrade compactness test.The subgrade compactness test soil sampling device comprises an annular cutter, the bottom end of the annular cutter is slidably connected with at least one sliding block, and each sliding block is hinged to a segmentation needle; the annular cutter is connected with a driving assembly for driving the segmentation needle to rotate in the direction close to the axis of the annular cutter, and the driving assembly drives the sliding block to rotate around the axis of the annular cutter. The device has the effect of removing residual soil at the bottom end of the annular cutter in a time-saving and labor-saving manner.

Description

technical field [0001] The present application relates to the field of roadbed compaction degree testing, in particular to a borrowing device for roadbed compaction degree testing for project supervision. Background technique [0002] Subgrade compaction is one of the key indicators for quality inspection of subgrade and pavement construction. It represents the density of subgrade after on-site compaction. The higher the degree of compaction, the greater the density and the better the overall performance of the material. There are two main methods for testing the compactness of fine-grained soil subgrades: the sand filling method and the ring knife method. [0003] According to T0923-1995 "Test Method for Determination of Compaction by Ring Knife Method", the ring knife method is suitable for fine-grained soil without aggregates. The advantage is that the equipment is simple and easy to operate. Put on the ring cover, tap the ring cover evenly, drive the ring knife into the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/04
CPCE02D1/04
Inventor 李玲玲张连保刘润义张鑫龙
Owner 河北理工工程管理咨询有限公司
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