CN112049648A - Pipe jacking construction monitoring control method - Google Patents
Pipe jacking construction monitoring control method Download PDFInfo
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- CN112049648A CN112049648A CN202010910819.7A CN202010910819A CN112049648A CN 112049648 A CN112049648 A CN 112049648A CN 202010910819 A CN202010910819 A CN 202010910819A CN 112049648 A CN112049648 A CN 112049648A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000013461 design Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 230000005641 tunneling Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 11
- 239000004576 sand Substances 0.000 description 8
- 238000012937 correction Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a monitoring and controlling method for pipe jacking construction. The method comprises the following steps: setting an axis datum point A and a point B according to the design requirement of a jacking pipe, setting an axis direction control point D at an initial opening in a foundation pit, setting an elevation control point C on a tunneling guide rail base, and setting a target on a tunnel face; leading the axis datum point to a setting position 0 point of a working well base surface laser level gauge; aiming the D point through a vertical line emitted by the laser level gauge to perform axis checking with the target, and performing axis direction control; aiming the elevation of the point C through a vertical line emitted by the laser level gauge, checking the elevation of the point C as a rear viewpoint and a target, and performing elevation control; and correcting the deviation of the pipe jacking according to the deviation data on the measuring optical target. The invention adopts a laser level meter combined with a wire hanging method, takes the center of a central wire hanging plumb bob as a datum point through a central bubble of the laser level meter, aims a cross ray at a front section axis point, and performs axis and elevation check by throwing the ray on a palm surface target so as to achieve the purpose of correcting deviation.
Description
Technical Field
The invention belongs to the technical field of municipal engineering construction, is particularly suitable for a measurement and deviation rectification control technology in pipe jacking construction of a gravel stratum, and particularly relates to a pipe jacking construction monitoring control method.
Background
In building construction, particularly underground building construction, it is often necessary to perform machine pit or tunnel construction work in a sand gravel stratum. The geological characteristics of the sand gravel stratum have large particle size in partial sections, and manual pipe jacking construction is needed. In pipe jacking construction, elevation and axis control are important difficulties. Particularly, the sand gravel stratum has the characteristics of easy deviation generation, difficult deviation correction and the like, the quality control of the pipeline axis and the elevation directly influences whether the line can be communicated, and the measurement and correction must be carried out frequently in the process, so that the center line and the elevation of the pipeline are accurately determined. The existing pipe jacking construction measurement control is usually controlled by a laser theodolite or a total station, so that the operation is complicated and errors are easy to generate.
Disclosure of Invention
The invention discloses a pipe jacking construction monitoring control method according to monitoring requirements of pipe jacking construction in a sand gravel construction environment. The invention mainly solves the problems of monitoring and controlling the construction elevation and the axis of the artificial pipe jacking in the sand gravel stratum.
The invention is realized by the following technical scheme:
the monitoring and controlling method for pipe jacking construction is characterized by comprising the following steps of:
(1) preparation work: before pipe jacking construction, setting an axis datum A point and an axis datum B point on the top surface of a working well by using a total station according to the design requirement of the pipe jacking, wherein the line of the two points is the design axis of the pipe jacking; setting an axis direction control point D at an initial opening in a working well foundation pit by using a total station, setting an elevation control point C on a tunneling guide rail base, and setting a target on a tunnel face;
(2) in the jacking process, a suspension wire is adopted to lead the design axis datum point of the jacking pipe to a 0 point of a laser level setting position of a base surface of the working well, the laser level is erected on the 0 point of the laser level setting position, and the top horizontal bubble is used for manually adjusting and centering;
(3) the axis control method comprises the following steps: aiming at an axis direction control D point through a vertical line emitted by a laser level gauge and setting a target on a tunnel face to carry out axis verification and axis direction control;
(4) the elevation control method comprises the following steps: aiming a vertical line emitted by a laser level at a guide rail base, and controlling the elevation of a point C as a rear view point and a target arranged on a tunnel face to check so as to control the elevation;
and correcting the deviation of the pipe jacking according to the deviation data on the measuring optical target.
The target is a graduated scale with a level gauge.
The method adopts a laser level meter wire hanging method, is convenient to operate, safe and reliable, improves the pipe jacking construction efficiency and ensures the construction period. For the construction of the artificial pipe jacking in the sand gravel stratum, the monitoring control method not only solves the problem of complicated operation procedures of the conventional instrument, but also is convenient to operate in a working well, can effectively eliminate the measurement error and has good effect in engineering practice.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the conventional pipe jacking construction measurement adopting a three-point one-line laser theodolite, the invention adopts a laser level instrument and a suspension line method, takes the center of a suspension line plumb as a reference point through a central bubble of the laser level instrument, aims at the front section axis point through the cross ray of the level instrument, and performs axis and elevation check through the ray cast on a tunnel face target so as to achieve the purpose of deviation correction.
2. The monitoring method has the advantages of high selection accuracy, simple and convenient operation and strong real operability, and in the prior art, the total station or the laser theodolite is arranged at the position of an O point for observation, so that the operation is complicated, the specialization is strong, and errors are easy to occur in the foundation pit when the monitoring method is used; the frequency of measurement of manual pipe jacking construction is high, the measurement is not less than once when the pipe jacking is carried out for 1.0m in the normal jacking process according to the standard requirement, and frequent measurement by adopting a total station or a laser theodolite in a foundation pit is not practical, time-consuming and labor-consuming. The method can effectively prevent deviation in pipe jacking construction, is simple to operate, convenient and quick, and provides guarantee for pipe jacking construction measurement control deviation rectification.
3. The method can improve the work efficiency of pipe-jacking construction and provides reliable guarantee for the control of the pipe-jacking construction quality.
Drawings
FIG. 1 is a schematic view of a cross-sectional X-X arrangement of the monitoring method of the present invention;
fig. 2 is a schematic plan top view arrangement of the monitoring method of the present invention.
In the figure, 1 is an axis reference point a, 2 is an axis reference point B, 3 is a laser level setting position point 0, 4 is an axis direction control point D, 5 is an elevation control point C, 6 is a target, 7 is a guide rail, and 8 is a pipe jacking construction direction.
Detailed Description
The present invention is further described below in conjunction with the following detailed description, which is intended to further illustrate the principles of the invention and is not intended to limit the invention in any way, but is equivalent or analogous to the present invention without departing from its scope.
With reference to the attached drawings.
The pipe jacking construction monitoring control method comprises the following steps:
(1) preparation work: before pipe jacking construction, setting an axis datum A point 1 and an axis datum B point 2 on the top surface of a working well by using a total station according to the design requirement of the pipe jacking, wherein the connection line of the two points is the design axis of the pipe jacking; an axis direction control D point 4 is arranged at an initial opening in a working well foundation pit by using a total station, an elevation control C point 5 is arranged on a tunneling guide rail base, and a target 6 is arranged on a tunnel face;
(2) in the jacking process, a suspension wire is adopted to lead the design axis datum point of the jacking pipe to a working well base plane laser level setting position 0 point 3, the laser level is erected on the laser level setting position 0 point 3, and the top horizontal bubble is manually adjusted and centered;
(3) the axis control method comprises the following steps: aiming at an axis direction control D point 4 through a vertical line emitted by a laser level gauge and carrying out axis verification on a tunnel face setting target 6 to carry out axis direction control;
(4) the elevation control method comprises the following steps: aiming at a guide rail base through a vertical line emitted by a laser level, controlling the elevation of a point C5 as a rear view point and setting a target 6 on a tunnel face for checking, and performing elevation control;
if the operator finds that the deviation exists, the operator can correct the deviation in time according to the deviation data on the measuring optical target.
With reference to fig. 1 and 2, the arrangement comprises: the system comprises an axis datum point A1, an axis datum point B2, a laser level setting position 0 point 3, an axis direction control D point 5, a guide rail 7, an elevation control C point 5 and a target 6.
And an axis datum point A1 and an axis datum point B2 are axis control points, and before jacking construction, a total station is used for performing accurate lofting according to the design requirement of a jacking pipe and marking.
Firstly, leveling a base surface of a working well, and manually centering by using a line-hanging normal line hammer to set a laser level setting position 0 point 3 by utilizing two-point connection of an axis datum A point 1 and an axis datum B point 2.
And accurately lofting the concrete retaining wall by using a total station according to the design requirement of the jacking pipe, setting an axis direction control D point 4, and marking.
After the guide rail 7 is constructed according to the design requirements of the jacking pipe, an elevation control C point 5 is arranged on the base of the guide rail 7 and used as a rear view point for checking elevation.
A target 6 is arranged on the tunnel face of the graduated scale with the level gauge, and the axis and elevation deviation can be checked through laser cross rays to correct the deviation in time.
In the artificial pipe jacking construction of the sand gravel stratum, the advancing direction of the tool pipe can be deviated or rotated due to the head-on resistance, uneven distribution of the friction force of the pipe wall, small eccentricity of a jack and the like; in order to ensure the construction quality of the pipeline, the construction deviation can be prevented from exceeding an allowable value by timely correcting. The jacking process comprises the following steps: "frequently push up, frequently dig, frequently survey, frequently rectify", the measurement of every push-in 30cm is no less than once when starting to push into entering soil layer, and the measurement of every push-in 1.0m is no less than once when normally pushing in, combines the suspension wire spirit level to control in the sand gravel stratum, has improved push pipe construction work efficiency greatly, has guaranteed the quality, has reduced construction cost.
Claims (2)
1. A pipe jacking construction monitoring control method is characterized by comprising the following steps:
(1) preparation work: before pipe jacking construction, setting an axis datum A point and an axis datum B point on the top surface of a working well by using a total station according to the design requirement of the pipe jacking, wherein the line of the two points is the design axis of the pipe jacking; setting an axis direction control point D at an initial opening in a working well foundation pit by using a total station, setting an elevation control point C on a tunneling guide rail base, and setting a target on a tunnel face;
(2) in the jacking process, a suspension wire is adopted to lead the design axis datum point of the jacking pipe to a 0 point of a laser level setting position of a base surface of the working well, the laser level is erected on the 0 point of the laser level setting position, and the top horizontal bubble is used for manually adjusting and centering;
(3) the axis control method comprises the following steps: aiming at an axis direction control D point through a vertical line emitted by a laser level gauge and setting a target on a tunnel face to carry out axis verification and axis direction control;
(4) the elevation control method comprises the following steps: aiming a vertical line emitted by a laser level at a guide rail base, and controlling the elevation of a point C as a rear view point and a target arranged on a tunnel face to check so as to control the elevation;
and correcting the deviation of the pipe jacking according to the deviation data on the measuring optical target.
2. The pipe jacking construction monitoring and controlling method according to claim 1, wherein: the target is a graduated scale with a level gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910819.7A CN112049648B (en) | 2020-09-02 | 2020-09-02 | Pipe jacking construction monitoring control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910819.7A CN112049648B (en) | 2020-09-02 | 2020-09-02 | Pipe jacking construction monitoring control method |
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| Publication Number | Publication Date |
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| CN112049648A true CN112049648A (en) | 2020-12-08 |
| CN112049648B CN112049648B (en) | 2022-06-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658449A (en) * | 2022-04-29 | 2022-06-24 | 中国一冶集团有限公司 | Tunnel underground excavation pipe shed guide pipe drilling construction precision control method |
| CN115263326A (en) * | 2022-08-29 | 2022-11-01 | 中国地质大学（武汉） | Pipe jacking pipeline deviation real-time monitoring method based on triaxial tilt angle sensor |
| CN116804370A (en) * | 2023-08-28 | 2023-09-26 | 中铁第六勘察设计院集团有限公司 | Anti-deviation device for pipe jacking tunneling and using method |
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2020
- 2020-09-02 CN CN202010910819.7A patent/CN112049648B/en active Active
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114658449A (en) * | 2022-04-29 | 2022-06-24 | 中国一冶集团有限公司 | Tunnel underground excavation pipe shed guide pipe drilling construction precision control method |
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| CN116804370B (en) * | 2023-08-28 | 2023-11-10 | 中铁第六勘察设计院集团有限公司 | Anti-deviation device for pipe jacking tunneling and using method |
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| CN112049648B (en) | 2022-06-28 |
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