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Method for solving problem of small effective aperture of vertical line drilling

A technology of effective aperture and vertical line, applied in the direction of plumb line, measuring device, instrument, etc., can solve the problem of small effective aperture of vertical line drilling, so as to facilitate normal advancement, reduce investment increase, and reduce the probability of construction interference Effect

Active Publication Date: 2019-07-26
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a method for solving the small effective aperture of vertical drilling. The effective aperture of the vertical drilling cannot meet the specification requirements but is larger than When designing and calculating the deformation value, it can meet the dam deformation measurement requirements without reaming or re-drilling

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  • Method for solving problem of small effective aperture of vertical line drilling

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Embodiment Construction

[0020] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0021] Such as figure 1 As shown, a method for solving the small effective aperture of vertical drilling includes the following steps:

[0022] ① Prepare equipment: prepare high-strength stainless steel wire 3 and heavy hammer;

[0023] ②Preparation for measurement: insert the high-strength stainless steel wire 3 into the vertical drill hole 1, and pull it with a heavy hammer;

[0024] ③ Adjust the position: after the high-strength stainless steel wire 3 is pulled and straightened by the weight to be in a vertical state, the position is adjusted; the specific steps are as follows:

[0025] (3.1) After the high-strength stainless steel wire 3 is pulled and straightened by the weight to be in a vertical state, the high-strength stainless steel wire 3 is moved to the center point 2 of the effective aperture;

[0026] (3.2) When the...

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Abstract

The invention provides a method for solving problem of small effective aperture of vertical line drilling, which comprises the following steps of: preparing the device, preparing the measurement, adjusting the position, and starting the monitoring. Under the condition that the calculated deformation value of the water retaining building with the effective aperture larger than the water retaining building is slightly smaller than the standard requirement, the invention can monitor without reaming or re-drilling, can reduce the investment increase and the construction interference probability caused by reworking, and is beneficial to normal promotion of engineering.

Description

technical field [0001] The invention relates to a method for solving the small effective aperture of vertical drilling, which belongs to the technical field of water conservancy and hydropower applications, and specifically relates to a method for solving the problem that the effective aperture of a vertical system is smaller than a standard value but larger than a dam deformation value. Background technique [0002] The vertical line system is generally used to monitor the horizontal displacement of the water-retaining structure. The equipment is mainly composed of a protection box, high-strength stainless steel wire, an oil drum, a weight, and a coordinate instrument. Among them, the high-strength steel stainless steel wire is located in the center of the vertical borehole of the dam body. According to the SL or DL ​​version of the "Technical Specifications for Safety Monitoring of Concrete Dams", the effective diameter of the vertical drilling is not less than 85mm. In a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/32G01C15/10
CPCG01B21/32G01C15/10
Inventor 王海燕陈娟祁伟强张高刘曜杨鹏王志鹏曹畑张利华
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD