CN110057340B - Method for solving problem of small effective aperture of vertical line drilling - Google Patents
Method for solving problem of small effective aperture of vertical line drilling Download PDFInfo
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- CN110057340B CN110057340B CN201910289825.2A CN201910289825A CN110057340B CN 110057340 B CN110057340 B CN 110057340B CN 201910289825 A CN201910289825 A CN 201910289825A CN 110057340 B CN110057340 B CN 110057340B
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- stainless steel
- steel wire
- strength stainless
- vertical
- effective aperture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a method for solving the problem that the effective aperture of a vertical drilling hole is small, which comprises the following steps: prepare the device-prepare the measurement-adjust the position-start the monitoring. The invention can monitor without reaming or re-drilling under the condition that the effective aperture is larger than the calculated deformation value of the water retaining building and is slightly smaller than the standard requirement, can reduce the probability of investment increase and construction interference caused by rework, and is beneficial to the normal propulsion of engineering.
Description
Technical Field
The invention relates to a method for solving the problem that the effective aperture of a vertical line drilling hole is small, belongs to the technical field of water conservancy and hydropower application, and particularly relates to a method for solving the problem that the effective aperture of a vertical line system is smaller than a standard value but larger than a dam body deformation value.
Background
The vertical line system is generally used for monitoring the horizontal displacement of a water retaining building, and the device mainly comprises a protection box, a high-strength stainless steel wire, an oil drum, a heavy hammer, a coordinatograph and the like. Wherein the high-strength steel stainless steel wire is positioned in the center of the vertical drilling hole of the dam body. According to the requirements of SL or DL edition 'technical Specification for monitoring the safety of concrete dams', the effective aperture of the vertical drilling is not less than 85 mm. In actual engineering, due to factors such as construction technology or slightly small hole diameter of the hole, after construction is completed, the effective hole diameter of the drilled hole is slightly smaller than 85mm required by specifications but larger than the calculated deformation value of a water retaining building. Such problems are encountered and the solution is to ream or re-drill the hole. No matter which method is adopted, the construction period and investment are increased, manpower and material resources are consumed, and construction interference with other specialties is generated to a great extent.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for solving the problem that the effective aperture of the vertical line drilling is small, and the method for solving the problem that the effective aperture of the vertical line drilling is small can meet the requirement of dam deformation measurement on the premise of not reaming or re-drilling when the effective aperture of the vertical line drilling cannot meet the standard requirement but is larger than the designed and calculated deformation value.
The invention is realized by the following technical scheme.
The invention provides a method for solving the problem that the effective aperture of a vertical drilling hole is small, which comprises the following steps:
preparing equipment: preparing a high-strength stainless steel wire and a heavy hammer;
preparing for measurement: penetrating a high-strength stainless steel wire into a vertical line for drilling, and drawing by using a heavy hammer;
adjusting the position: after the high-strength stainless steel wire is straightened to be in a vertical state by the traction of a heavy hammer, position adjustment is carried out;
starting monitoring: and detecting by using a vertical coordinatograph.
The third step is divided into the following steps:
(3.1) after the high-strength stainless steel wire is pulled and straightened by a heavy hammer to be in a vertical state, moving the high-strength stainless steel wire to the center point of the effective aperture;
(3.2) moving the high-strength stainless steel wire along the diameter line of the upstream and downstream of the central point of the effective aperture when the high-strength stainless steel wire is in a stable state at the central point of the effective aperture;
(3.3) moving the high-strength stainless steel wire to a position between the center point of the vertical drilling hole and the downstream hole wall of the vertical drilling hole;
(3.4) at this time, the distance between the high-strength stainless steel wire and the hole wall of the upstream vertical drill hole is larger than the deformation value calculated by design.
In the step (3.3), the distance between the center point of the vertical line drilling hole and the downstream hole wall of the vertical line drilling hole is 10-30 mm.
In the step (3.2), the floating range of the high-strength stainless steel wire is in a stable state when the effective aperture center point is taken as a central point and the radius is within a circle of 20 mm.
The invention has the beneficial effects that: under the condition that the effective aperture is larger than the calculated deformation value of the water retaining building and is slightly smaller than the standard requirement, monitoring can be carried out without reaming or re-drilling, the probability of investment increase and construction interference caused by rework can be reduced, and normal propulsion of engineering is facilitated.
Drawings
FIG. 1 is a schematic view of the position of the high strength stainless steel wire of the present invention in relation to the plane of a vertical drill hole;
in the figure: 1-vertical drilling, 2-effective aperture center point, and 3-high-strength stainless steel wire.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, a method for solving the problem of small effective aperture of vertical drilling comprises the following steps:
preparing equipment: preparing a high-strength stainless steel wire 3 and a heavy hammer;
preparing for measurement: penetrating a high-strength stainless steel wire 3 into the vertical drilling hole 1, and drawing by using a heavy hammer;
adjusting the position: after the high-strength stainless steel wire 3 is straightened to be in a vertical state by the traction of a heavy hammer, the position is adjusted; the method comprises the following steps:
(3.1) after the high-strength stainless steel wire 3 is pulled and straightened by a heavy hammer to be in a vertical state, moving the high-strength stainless steel wire 3 to the central point 2 of the effective aperture;
(3.2) when the high-strength stainless steel wire 3 is in a stable state at the effective aperture center point 2, moving the high-strength stainless steel wire 3 along the diameter line of the upstream and downstream of the effective aperture center point 2;
(3.3) moving the high-strength stainless steel wire 3 to a position between the center point of the vertical drilling and the downstream hole wall of the vertical drilling;
(3.4) this moment the distance between 3 distance upstream plumb line drilling 1's of high strength stainless steel wire is greater than the deformation value of design calculation, ensures that retaining structure retaining back removes to the dam downstream side, and high strength stainless steel wire can not touch with plumb line drilling pore wall, avoids high strength stainless steel wire to touch plumb line drilling pore wall because of retaining structure warp promptly, then can't survey and read further actual deformation value, influences the accuracy of deformation monitoring data.
In the step (3.3), the distance between the center point of the vertical line drilling hole and the downstream hole wall of the vertical line drilling hole is 10-30 mm.
In the step (3.2), the floating range of the high-strength stainless steel wire 3 is in a stable state when the effective aperture center point 2 is taken as a central point and the radius is within a circle of 20 mm.
Starting monitoring: and after the plumb line system and other matched equipment (such as a plumb line coordinatograph and manual measuring and reading equipment) are constructed according to the conventional method and correctly installed, and the plumb line coordinatograph can be used for monitoring after the power is switched on.
Claims (3)
1. A method for solving the problem that the effective aperture of a vertical drilling hole is small is characterized in that: the method comprises the following steps:
preparing equipment: preparing a high-strength stainless steel wire (3) and a heavy hammer;
preparing for measurement: penetrating a high-strength stainless steel wire (3) into the vertical drilling hole (1), and drawing by using a heavy hammer;
adjusting the position: after the high-strength stainless steel wire (3) is straightened to be in a vertical state by the traction of a heavy hammer, the position is adjusted;
starting monitoring: detecting by using a vertical coordinatograph;
the third step is divided into the following steps:
(3.1) after the high-strength stainless steel wire (3) is pulled by a heavy hammer to be straightened into a vertical state, moving the high-strength stainless steel wire (3) to the effective aperture center point (2);
(3.2) when the high-strength stainless steel wire (3) is in a stable state at the effective aperture center point (2), moving the high-strength stainless steel wire (3) along the diameter line of the upstream and downstream of the effective aperture center point (2);
(3.3) moving the high-strength stainless steel wire (3) to a position between the center point of the vertical drill hole and the downstream hole wall of the vertical drill hole;
(3.4) at the moment, the distance between the high-strength stainless steel wire (3) and the hole wall of the upstream vertical drilling hole (1) is larger than the deformation value calculated by design.
2. The method of claim 1, wherein the method further comprises: in the step (3.3), the distance between the center point of the vertical line drilling hole and the downstream hole wall of the vertical line drilling hole is 10-30 mm.
3. The method of claim 1, wherein the method further comprises: in the step (3.2), the floating range of the high-strength stainless steel wire (3) is in a stable state when the effective aperture center point (2) is taken as a center point and the radius is within a circle of 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289825.2A CN110057340B (en) | 2019-04-11 | 2019-04-11 | Method for solving problem of small effective aperture of vertical line drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289825.2A CN110057340B (en) | 2019-04-11 | 2019-04-11 | Method for solving problem of small effective aperture of vertical line drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110057340A CN110057340A (en) | 2019-07-26 |
| CN110057340B true CN110057340B (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910289825.2A Active CN110057340B (en) | 2019-04-11 | 2019-04-11 | Method for solving problem of small effective aperture of vertical line drilling |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU422954A1 (en) * | 1972-05-29 | 1974-04-05 | В. А. Медведев , И. А. Мишустин | RESPONSE |
| CN202719983U (en) * | 2012-08-29 | 2013-02-06 | 中国水电顾问集团中南勘测设计研究院 | Movable inverse vertical anchor block assembly |
| CN204575080U (en) * | 2015-04-30 | 2015-08-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of vertical line artificial observation sighting device |
| CN206161011U (en) * | 2016-11-15 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Regulation formula reversed pendulum equipment supporting structure |
| CN207991552U (en) * | 2018-03-29 | 2018-10-19 | 广州市城市规划勘测设计研究院 | A kind of high-rise building tower body swing monitoring device |
| CN207989022U (en) * | 2018-04-02 | 2018-10-19 | 长江水利委员会长江科学院 | A kind of detecting earth stress device based on the deformation measurement of gun drilling aperture |
-
2019
- 2019-04-11 CN CN201910289825.2A patent/CN110057340B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU422954A1 (en) * | 1972-05-29 | 1974-04-05 | В. А. Медведев , И. А. Мишустин | RESPONSE |
| CN202719983U (en) * | 2012-08-29 | 2013-02-06 | 中国水电顾问集团中南勘测设计研究院 | Movable inverse vertical anchor block assembly |
| CN204575080U (en) * | 2015-04-30 | 2015-08-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of vertical line artificial observation sighting device |
| CN206161011U (en) * | 2016-11-15 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Regulation formula reversed pendulum equipment supporting structure |
| CN207991552U (en) * | 2018-03-29 | 2018-10-19 | 广州市城市规划勘测设计研究院 | A kind of high-rise building tower body swing monitoring device |
| CN207989022U (en) * | 2018-04-02 | 2018-10-19 | 长江水利委员会长江科学院 | A kind of detecting earth stress device based on the deformation measurement of gun drilling aperture |
Non-Patent Citations (1)
| Title |
|---|
| 大坝倒垂线安装及其在初次蓄水观测中的应用;古力米热·哈那提 等;《人民长江》;20100531;第56-58页 * |
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| CN110057340A (en) | 2019-07-26 |
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