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Method for ground compression and heaping of large foundation piles for vertical compressive static load test in civil engineering

A technology of anti-compressive static load and civil engineering, which is applied in the direction of basic structure engineering, test of basic structure, construction, etc., and can solve problems such as increased risk

Inactive Publication Date: 2019-08-20
张宗毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4. If the piled objects below are soil, gravel, rocks or water tanks (bags), etc., when piled high, the piled objects will move laterally, and the danger will increase.
[0009] Therefore, there is a technical gap in the existing civil engineering foundation pile detection method involving the weight and heap load method used in the vertical compressive static load test.

Method used

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  • Method for ground compression and heaping of large foundation piles for vertical compressive static load test in civil engineering
  • Method for ground compression and heaping of large foundation piles for vertical compressive static load test in civil engineering
  • Method for ground compression and heaping of large foundation piles for vertical compressive static load test in civil engineering

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Experimental program
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Effect test

Embodiment 1

[0085] Embodiment 1: as Figure 1~3 As shown, the civil engineering described in the present embodiment uses the vertical anti-compression static load test large-scale foundation pile ground pressure heavy pile method, it is characterized in that it is carried out according to the following steps:

[0086] a. Build the ballast platform pier, and determine the vertical distance between the ballast platform, platform pier, main beam and test pile, and ensure that the detection jack, main beam, high secondary beam, low secondary beam and platform top and bottom plate steel plate and other equipment are installed in the exact spatial position, including the plane position and elevation;

[0087] b. Hoist the ballast stacked hollow tank column on the ballast platform in step a, and the hydraulic outrigger QFB non-standard jack under the base passes through the steel on the top layer of the platform to support the connecting beam 12 on the steel plate at the bottom of the platform o...

Embodiment 2

[0095] Embodiment 2: as Figure 4~5 As shown, the civil engineering described in this embodiment uses the method for ground pressure and heaping of large-scale foundation piles for vertical compressive static load test, which is similar to that of Example 1, except that the production of the pressure platform in the step a The process is as follows: fill the pier tank column 4 with bulk materials and then vibrate and level it. The bulk material must be 100 mm higher than the pier tank column and the main beam, and then lay steel plates. The transmission route, the thickness of the steel plate is 30 mm, but the lifting lug 11 of the tank column of the pier must be exposed to facilitate the connection with the low secondary beam 5; the high secondary beam is directly placed on the bottom steel plate of the platform on the tank column of the pier, and Put the low secondary beam on the cushion block after placing the cushion block, place a thin QFB non-standard jack between the lo...

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Abstract

The invention relates to a vertical compression resistance static loading test large base pile ground weight pile-loading method for civil engineering. The method is applied to vertical compression resistance static loading test weight counter force in civil engineering base pile detection. The method is executed according to the following steps that (a) weight platform buttresses are put up, (b) weight pile-loading hollow tank columns are hoisted on the weight platform, the first weight pile-loading hollow tank column and the axis line of a test pile are overlaid, other weight pile-loading hollow tank columns are hoisted around the first weight pile-loading hollow tank column are completely filled on the whole platform, and when the weight pile-loading hollow tank columns are hoisted, every two adjacent weight pile-loading hollow tank columns are fixedly connected through fixing pieces; (c) jumbo bags are hoisted in the first weight pile-loading hollow tank column, or the first weight pile-loading hollow tank column is filled with clear water, and around the first weight pile-loading hollow tank column, bulk jumbo bags are hoisted between every two adjacent weight pile-loading hollow tank columns sequentially, or clear water is filled between every two adjacent weight pile-loading hollow tank columns sequentially; and (d) a hydraulic jack between a weight platform main beam and the test pile is started to conduct detection.

Description

technical field [0001] The invention relates to an artificial ground pressure and heaping method for a large-scale foundation pile in a vertical anti-compression static load test, which is used in a vertical anti-compression static load test when detecting civil engineering foundation piles. Background technique [0002] At present, the pressure and reaction force of the vertical compressive static load test mainly comes from 1. anchor piles and anchor rods; However, due to site conditions, anchor piles or anchor rods cannot be constructed, and the use of self-balancing load boxes is also limited because the frictional resistance of the pile body is much smaller than the end bearing capacity. The artificial ground compaction and surcharge is basically not affected by the site conditions and the ratio of the frictional resistance of the pile itself and the end bearing force. It is widely used in the vertical compressive static load test. The following will focus on the compac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
Inventor 张宗毅
Owner 张宗毅
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