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A method for backfilling and grabbing a slotted hole

A technology of slotted holes and grabs, applied in drilling equipment and methods, earthwork drilling, construction, etc., can solve the problems of reducing the construction efficiency of grabs and achieve the effect of improving grabbing efficiency

Active Publication Date: 2018-01-05
SINOHYDRO FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Repeatedly, the construction efficiency of the grab is greatly reduced

Method used

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  • A method for backfilling and grabbing a slotted hole
  • A method for backfilling and grabbing a slotted hole
  • A method for backfilling and grabbing a slotted hole

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] A slot backfill grabbing method, the method comprising:

[0039] Step 1: Drilling two main holes 2 at a preset distance with a percussion drill 1, and forming a column 3 between two adjacent main holes 2;

[0040] Step 2, filling auxiliary materials 4 into two adjacent main holes 2;

[0041] Step 3, using the grab bucket 5 with two symmetrical calipers 501 to grab, destroy and remove the column 3 between the two main holes 2 .

[0042] The following describes the process of realizing the slotted hole creation in the embodiment of the present invention:

[0043] see figure 1 , first step 1 creates more than two main holes 2 at preset distances by means of a percussion drill 1 , and the formation conditions can be determined fr...

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Abstract

The invention discloses a slotted hole backfill grabbing method, and belongs to the field of concrete diaphragm wall slotted holes. The method includes the steps that firstly, a percussion drill is used for drilling two main holes (2) in a manner of spacing by a preset distance, and a column body (3) is formed between the two adjacent main holes; secondly, the two adjacent main holes (2) are filled with assisting objects (4); and thirdly, a grab bucket (5) with two symmetrical calipers (501) is used for grabbing, damaging and moving out the column body (3) between the two main holes (2). According to the method, the constructed main holes are filled with the assisting objects, and therefore macadam which cannot be grabbed by the grab bucket cannot be accumulated in the main holes, and the grabbing efficiency of the grab bucket is greatly improved.

Description

technical field [0001] The invention relates to the field of slot holes in concrete cut-off walls, in particular to a method for backfilling and grabbing slot holes. Background technique [0002] The concrete anti-seepage wall is a wall-shaped anti-seepage building built by continuously making holes in loose permeable foundations, solidifying the walls with mud, and pouring concrete into the holes. One of the main measures for vertical anti-seepage treatment. In the process of concrete anti-seepage wall, the first step of construction is to create slots, and the position of the anti-seepage wall is determined based on the slots. [0003] The currently used slotting method is the "two drills and one grasping method". Specifically, see figure 1 , first create more than two main holes 2 at preset distances through the percussion drilling rig 1, and the formation conditions can be determined from figure 1 It can be seen from the figure that the stratum where the concrete cut-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F5/12E21B1/00
CPCE02F5/12E21B1/00
Inventor 孔祥生宗敦峰韩伟石峰胡斌梁荣
Owner SINOHYDRO FOUND ENG
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