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Lime-soil compaction pile sampling device and method

A technology of lime-soil compaction pile and sampling device, which is applied in sampling device and other directions, can solve the problems of sampling difficulty, large workload, low efficiency, etc., and achieves the effect of good sampling effect, high efficiency and avoiding environmental pollution.

Inactive Publication Date: 2019-05-14
CHINA MCC20 GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sampling device and method for lime-soil compaction piles to solve the problems of difficulty in sampling lime-soil compaction piles, heavy workload and low efficiency in the prior art

Method used

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  • Lime-soil compaction pile sampling device and method

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Embodiment Construction

[0026] The technical solution of the present invention will be described in detail below in conjunction with specific embodiments.

[0027] The sampling device of the present invention can be refitted by utilizing the existing small car jack, and the jack (i.e. four-link type jack) of the small car is used as the jack sampling rack 1, and the jack sampling rack 1 includes a four-link support, a driving four-link The screw rod 2 for expanding and retracting the bracket, the base plate 3 connected to one side of the four-link bracket, and the supporting plate 4 connected to the other side of the four-link bracket. The four-bar linkage bracket includes an upper left link and a lower left link respectively hinged with the inner side of the supporting plate 4, an upper right link and a lower right link respectively hinged with the inner side of the substrate 3, and the upper ends of the upper left link and the upper ends of the upper right link are connected with The nuts on the sc...

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Abstract

The invention provides a lime-soil compaction pile sampling device and method. The sampling device comprises a jack sampling frame, a transmission guide rod, a fixed rod and a sampling knife; the jacksampling frame comprises a four-connection-rod support, a lead screw, a base plate connected with one side of the four-connection-rod support and a carry plate connected with the other side of the four-connection-rod support; the lower end of the transmission guide rod is connected with the upper end of the lead screw; the lower end of the fixed rod is fixedly connected with the base plate; the sampling knife comprises a first cutting ring and a second cutting ring coaxially fixed on the carry plate; the diameter of the first cutting ring is more than that of the second cutting ring, and thefirst cutting ring is sleeved on the second cutting ring; and the length of the first cutting ring is more than that of the second cutting ring. With the application of the sampling device provided bythe invention, the needed sampling hole is small, meanwhile, the sampling personnel does not need to punch for sampling, the security risk caused by manual punching for sampling is avoided, and the sampling cost is greatly reduced. After sampling is completed, the sampling hole only needs to be filled with sand, and backfilling is relatively simple.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a sampling device and method for a lime-soil compaction pile. Background technique [0002] According to the requirements of "Building Code for Collapsible Loess Areas GB50025-2004", after the construction of lime-soil compaction piles reaches a certain age, it is necessary to ram the filling in the hole within the full hole depth, and take a set of ring knife samples every 1 meter , used to determine the compaction coefficient of the pile body, the number of samples taken is 2% of the total number of piles. Generally, lime-soil compaction piles are used for foundation treatment projects, and the total number of designed piles is about 30,000, so the number of piles to be sampled There are about 600 piles, and if the pile length is 8 meters, 4,800 points need to be sampled, which is a very large amount of samples. [0003] At present, the method of on-site sampling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/08
Inventor 李自荣孟祥阳
Owner CHINA MCC20 GRP CORP
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