CN105091852A - Pipe-jacking excavation laser-guiding measurement construction method - Google Patents
Pipe-jacking excavation laser-guiding measurement construction method Download PDFInfo
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- CN105091852A CN105091852A CN201510422449.1A CN201510422449A CN105091852A CN 105091852 A CN105091852 A CN 105091852A CN 201510422449 A CN201510422449 A CN 201510422449A CN 105091852 A CN105091852 A CN 105091852A
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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
-
- 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
- G01B21/02—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 length, width, or thickness
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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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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a guiding measurement method, and concretely relates to a pipe-jacking excavation laser-guiding measurement construction method. The method comprises the following steps: a, laying control points; b, setting out a working well and installing construction equipment, concretely, determining the working-well center position, obtaining working-well corner point coordinates through simple calculation, directly using a total-station instrument to determine corner points, so as to obtain the intersection point of the connecting lines of the corner points, in other words, the working-well center position; c, establishing an underground plane control point; d, establishing an elevation control point, concretely, employing a box staff leading-in method and a steel ruler leading-in method to lead the elevation of the ground point to the working well for measurement; e, establishing a settlement and displacement observation point; and f, performing jacking along the axial direction by a pipe-jacking machine and performing elevation measurement. According to the method, operation is simple, the frequency of measurement by interrupting pipe-jacking construction is reduced, the breakthrough precision is high, and social benefit is high.
Description
Technical field
The present invention relates to a kind of orientation measurement engineering method, a kind of Pipe Jacking laser guide measures construction specifically.
Background technology
Pipeline laying in the rain sewerage of municipal works, generally adopts full-face excavation, and along with the quickening of urbanization process, laying of sewer line is more and more darker, excavation construction along with the intensification of the buried depth of pipeline more and more uneconomical.In addition urban infrastructure is very crowded numerous and diverse, and water discharge line often passes through the municipal pipeline of existing highway, railway, river course, lake, buildings etc., and excavation construction often seriously restricts.No matter be that one new technique easily is all being sought by designing unit or unit in charge of construction under the restriction of these conditions.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art part, provide a kind of Pipe Jacking laser guide to measure construction.
For achieving the above object, the technical solution used in the present invention is: specifically comprise the following steps:
A, control points layout: first carry out repetition measurement verification to the reference mark data of designing unit's handing-over, secondly create construction survey horizontal control network according to the floor plan of engineering;
The construction lofting of b, active well and the installation of preparation of construction: determine active well center, try to achieve active well angular coordinate by simple computation, directly makes angle point with total powerstation, and the intersection point of angle point line is active well center;
The foundation of c, underground planimetric control point: set up underground planimetric control point and adopt laser transit method;
The foundation of d, vertical control point: adopt Sopwith staff introductory technique and steel ruler introductory technique by under topocentric elevation pilot measurement to active well;
The foundation of e, Settlement and displacement observation station;
F, push bench jacking axis and the measurement of higher degree: directly use laser guide method during push bench jacking length≤300m, now do not need shutdown to carry out measurement misalignment of axe and elevation; Adopt laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length >=300m, now need just can measure after push bench stops jacking.
In above-mentioned steps c, laser transit method comprises the following steps:
Step 1, above active well, A, B two stakes are set along the setting-out of push pipe axis direction;
Step 2, by laser transit frame at ground A point backsight B point, then screw horizontal dial spiral, hole end setting-out make D point;
Step 3, laser transit is moved on to B point backsight A point, screw horizontal dial spiral, in hole, C point is made in setting-out;
Line direction between C, D two points is the axis direction of push pipe in active well.
In above-mentioned steps d, Sopwith staff introductory technique is: set up an office on active well limit A, is guided at ground elevation reference mark on active well edge point A, a reference mark O is marked at the bottom of working pit, suppose that spirit-leveling instrument observation obtains A on the ground, O 2 discrepancy in elevation, try to achieve the elevation of reference mark O.
In above-mentioned steps f, the method directly using laser guide method to carry out measuring during push bench jacking length≤300m is: in active well, jacking axis direction sets up a laser transit, the laser beam that pedestal height should make laser transit send is consistent with pipe design axis; Through manual measurement and calculating, design conduit slope is showed by transit altitude circle, screws altitude circle spiral, at this moment the laser beam that sends of laser transit just can with pipe design axis and conduit slope completely the same;
The method adopting laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length>=300m is: with laser setting-out two point on pipe inner bottom part axis, suppose to be respectively A, B, measure out center C and the interior end center E of jacking tube hole place pipe at the end in push pipe head and first segment tube coupling junction pipe with steel tape, in pipeline, utilize E point height to measure the elevation H of A, B 2 respectively with spirit-leveling instrument
aand H
b; B point erection total powerstation in pipeline, on A point, vertical prism, measures the distance L between A, B at 2.Set up coordinate system, instrument height is measured and prism is high with steel tape, under total station survey pattern, to input the coordinate of A, B 2 and instrument height and prism respectively high for corresponding survey station point and backsight point, through measurement directed errorless after, set up prism at the C point of first segment tube coupling and push pipe head junction.
Advantageous Effects of the present invention is: the principle of the invention is simple, and workmen easily grasps; Easy to use, only need the measuring equipment using band laser; Effective minimizing pendulous frequency, reduce the error in construction survey, construction speed is fast; Push pipe accurate positioning, penetrating accuracy is high.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of Pipe Jacking laser guide measures construction, specifically comprises the following steps:
A, control points layout: after moving into working-yard, first carry out repetition measurement verification to the reference mark data of designing unit's handing-over, comprise the repetition measurement of planimetric control point and the repetition measurement of vertical control point, solid to guarantee these reference mark.Secondly, the floor plan according to engineering creates construction survey horizontal control network, and reference mark will consider that the factor such as intervisibility, firm, convenient control carries out reasonable Arrangement, has at least two reference mark to make backsight when guarantee setting-out, is convenient to check.Finally, tackle each reference mark and carry out fender pile protection.
The construction lofting of b, active well and the installation of preparation of construction: first determine active well center, try to achieve active well angular coordinate by simple computation, directly makes angle point with total powerstation, and the intersection point of angle point line is active well center.The work relating to measurement in preparation of construction installation process mainly contains the installation location of guide rail, the installation location of lifting jack and the installation location of top iron.Whether accurately guide rails assembling position directly affect pipeline jacking whether off normal, should install firm, straight, contour, its slideway should with design tubular axis line parallel, longitudinal gradient is consistent with the pipe design gradient, and in use running check check guide rail, prevents displacement.Guide rail elevation of top surface calculates according to following formula:
Design altitude+(R-h) at the bottom of guide rail elevation of top surface=pipe,
In formula, R is push pipe external diameter, and guide rail and tube contacts face are h to the discrepancy in elevation at push pipe center.
Lifting jack should be fixed on support, and the axis pushing up iron with the vertical line symmetry of pipeline center should be parallel with conduit axis, symmetrical.
The foundation of c, underground planimetric control point: set up underground planimetric control point and adopt laser transit method; First above active well, A, B two stakes are set along the setting-out of push pipe axis direction.Then by laser transit frame at ground A point backsight B point, then screw horizontal dial spiral, hole end setting-out make D point; Then laser transit is moved on to B point backsight A point, screw horizontal dial spiral, in hole, C point is made in setting-out.Line direction between C, D two points is the axis direction of push pipe in active well.In order to eliminate instrument error, improve positional accuracy, each fixed point should be divided and faced left, coils right observation and get intermediate position twice.
The foundation of d, vertical control point: adopt Sopwith staff introductory technique and steel ruler introductory technique by under topocentric elevation pilot measurement to active well; Laser transit method comprises the following steps:
Step 1, above active well, A, B two stakes are set along the setting-out of push pipe axis direction;
Step 2, by laser transit frame at ground A point backsight B point, then screw horizontal dial spiral, hole end setting-out make D point;
Step 3, laser transit is moved on to B point backsight A point, screw horizontal dial spiral, in hole, C point is made in setting-out;
Line direction between C, D two points is the axis direction of push pipe in active well.
Sopwith staff introductory technique is applicable to the less situation of the active well degree of depth, when the active well degree of depth is comparatively large, when using water level box staff elevation transference to have any problem, adopts steel ruler introductory technique.
The foundation of e, Settlement and displacement observation station; During jacking construction, active well is stressed very large, easily causes well body Settlement and displacement, and remote effect are to the precision of underground pipe-driving survey simultaneously, therefore before push pipe starts, arranges sedimentation on active well and displacement observation point is measured raw data and makes a record.Push pipe will carry out the observation of periodicity Settlement and displacement, until jacking construction terminates to active well at the beginning.Measure requirement as follows:
1) Settlement and displacement observation station is buried underground according to the arrangement requirement of deformation monitoring specification to Settlement and displacement observation station.Settlement and displacement burying of observation point must be firm, obvious, and take suitable safeguard measure.
2) namely first time Settlement and displacement observation carried out after burying of observation point completes, and within during push pipe every two days, at least observes 1 time until jacking construction terminates.
3) settlement observation adopts precision level, equidistant measurement.Displacement observation adopts total powerstation, polar method matching measurement.Mean square error of height ± 1.00mm.Settlement and displacement observation special messenger is responsible for and record, finally arrange statistics, if find, active well body has displacement and sedimentation, survey crew should take corresponding measure immediately, again setting-out and pilot measurement are carried out to conduit axis and elevation, in order to avoid affect underground pipe-driving survey precision, strengthen Settlement and displacement observing frequency simultaneously.
F, push bench jacking axis and the measurement of higher degree: directly use laser guide method during push bench jacking length≤300m, now do not need shutdown to carry out measurement misalignment of axe and elevation; Adopt laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length >=300m, now need just can measure after push bench stops jacking.
Directly use laser guide method during push bench jacking length≤300m, now do not need shutdown to measure.Misalignment of axe and elevation, in upper pipe working well, jacking axis direction sets up a laser transit, the laser beam that pedestal height should make laser transit send is consistent with pipe design axis, and base platform requires to be connected separately with active well base plate, must not contact with other equipment or periphery object, in order to avoid other equipment or object are due to vibration or mobile vibration or the movement causing laser transit base platform, thus affect the accuracy of measurement and positioning.
After laser transit sets up, through manual measurement and calculating, design conduit slope is showed by transit altitude circle, screws altitude circle spiral, at this moment the laser beam that sends of laser transit just can with pipe design axis and conduit slope completely the same.This bundle laser straight plays on the measurement light target of jacking head.Although head and tube coupling are constantly move forward when jacking, but the tracking measurement light target that laser beam but can be stable, can find out whether the tunneling direction of head advances according to pipe design axis and the gradient intuitively by measuring light target in jack-in process, if find that laser beam departs from target center, site work personnel can rectify a deviation according to the deviation data measured on light target in time.
Adopt laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length >=300m, now need just can measure after push bench stops jacking.
Within the scope of the effective Laser emission of laser transit, with laser setting-out two point on pipe inner bottom part axis, suppose to be respectively A, B, for ensureing the precision after Axis Extension, the distance of A, B point-to-point transmission must meet L>=100m, center C and the interior end center E of jacking tube hole place pipe at the end in push pipe head and first segment tube coupling junction pipe is measured out with steel tape, point E elevation is known, for pipeline enters portal design elevation, in pipeline, E point height is utilized to measure the elevation H of A, B 2 respectively with spirit-leveling instrument
aand H
b.
First B point erection total powerstation in pipeline, on A point, vertical prism, measures the distance L between A, B at 2.Set up coordinate system, assuming that A point is true origin, pipeline jacking direction is X-axis, jacking direction left-right deviation is Y-axis, then A point coordinate can be expressed as (0,0, HA), the coordinate of B point is (L, 0, HB), measure instrument height with steel tape and prism is high, under total station survey pattern, to input the coordinate of A, B 2 and instrument height and prism respectively high for corresponding survey station point and backsight point, after measuring orientation and be errorless, set up prism at the C point of first segment tube coupling and push pipe head junction, measure the coordinate of C point, be assumed to (L
aC, a, H
c), according to set up coordinate system, be the distance between A, C 2, a is the deviate of C point on design axis, H
cfor the height value of the relative E point of C point.According to the Distance geometry pipe design gradient between CE 2, the design altitude H of C point relative to E point can be calculated
sC, H
cand H
sCbetween difference be exactly the deviate of C point height.Site work personnel can carry out jacking correction operation according to misalignment of axe a and height variation.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. Pipe Jacking laser guide measures a construction, it is characterized in that, comprises the following steps:
A, control points layout: first carry out repetition measurement verification to the reference mark data of designing unit's handing-over, secondly create construction survey horizontal control network according to the floor plan of engineering;
The construction lofting of b, active well and the installation of preparation of construction: determine active well center, try to achieve active well angular coordinate by simple computation, directly makes angle point with total powerstation, and the intersection point of angle point line is active well center;
The foundation of c, underground planimetric control point: set up underground planimetric control point and adopt laser transit method;
The foundation of d, vertical control point: adopt Sopwith staff introductory technique and steel ruler introductory technique by under topocentric elevation pilot measurement to active well;
The foundation of e, Settlement and displacement observation station;
F, push bench jacking axis and the measurement of higher degree: directly use laser guide method during push bench jacking length≤300m, now do not need shutdown to carry out measurement misalignment of axe and elevation; Adopt laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length >=300m, now need just can measure after push bench stops jacking.
2. Pipe Jacking laser guide according to claim 1 measures construction, and it is characterized in that, in step c, laser transit method comprises the following steps:
Step 1, above active well, A, B two stakes are set along the setting-out of push pipe axis direction;
Step 2, by laser transit frame at ground A point backsight B point, then screw horizontal dial spiral, hole end setting-out make D point;
Step 3, laser transit is moved on to B point backsight A point, screw horizontal dial spiral, in hole, C point is made in setting-out;
Line direction between C, D two points is the axis direction of push pipe in active well.
3. Pipe Jacking laser guide according to claim 1 measures construction, it is characterized in that, in steps d, Sopwith staff introductory technique is: set up an office on active well limit A, ground elevation reference mark is guided on active well edge point A, at the bottom of working pit, mark a reference mark O, suppose that spirit-leveling instrument observation obtains A on the ground, O 2 discrepancy in elevation, try to achieve the elevation of reference mark O.
4. Pipe Jacking laser guide according to claim 1 measures construction, it is characterized in that, in step f, the method directly using laser guide method to carry out measuring during push bench jacking length≤300m is: in active well, jacking axis direction sets up a laser transit, the laser beam that pedestal height should make laser transit send is consistent with pipe design axis; Through manual measurement and calculating, design conduit slope is showed by transit altitude circle, screws altitude circle spiral, at this moment the laser beam that sends of laser transit just can with pipe design axis and conduit slope completely the same;
The method adopting laser guide and Assumed coordinate method to carry out tracking measurement during push bench jacking length>=300m is: with laser setting-out two point on pipe inner bottom part axis, suppose to be respectively A, B, measure out center C and the interior end center E of jacking tube hole place pipe at the end in push pipe head and first segment tube coupling junction pipe with steel tape, in pipeline, utilize E point height to measure the elevation H of A, B 2 respectively with spirit-leveling instrument
aand H
b; B point erection total powerstation in pipeline, on A point, vertical prism, measures the distance L between A, B at 2.Set up coordinate system, instrument height is measured and prism is high with steel tape, under total station survey pattern, to input the coordinate of A, B 2 and instrument height and prism respectively high for corresponding survey station point and backsight point, through measurement directed errorless after, set up prism at the C point of first segment tube coupling and push pipe head junction.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403203A (en) * | 2015-12-22 | 2016-03-16 | 中铁上海工程局集团有限公司 | Long distance linear top pipe center simple control measuring system and method |
| CN105466366A (en) * | 2015-11-26 | 2016-04-06 | 中国建筑股份有限公司 | High-rise frame-tube structure vertical absolute deformation and differential deformation monitoring device and method |
| CN106836225A (en) * | 2017-03-24 | 2017-06-13 | 长春工程学院 | A kind of artificial digging pile laser alignment device |
| CN107218584A (en) * | 2017-05-12 | 2017-09-29 | 成都金玉雄辉建筑工程有限公司 | A kind of push pipe vibrates prior-warning device |
| CN108488483A (en) * | 2018-02-09 | 2018-09-04 | 温州市城南市政建设维修有限公司 | A kind of pipeline non-excavating construction method |
| CN108645393A (en) * | 2018-08-13 | 2018-10-12 | 中铁二十局集团第工程有限公司 | A kind of push-bench posture three-dimension measuring system and method |
| CN108759775A (en) * | 2018-03-14 | 2018-11-06 | 江苏恒久钢构有限公司 | A kind of method for building up of vertical control network |
| CN108916469A (en) * | 2018-07-19 | 2018-11-30 | 深圳市工勘岩土集团有限公司 | The construction method that small-bore pipeline is worked continuously |
| CN111236957A (en) * | 2020-01-14 | 2020-06-05 | 广州坚磊建设有限公司 | Mechanical pipe jacking construction process |
| CN111337935A (en) * | 2020-03-17 | 2020-06-26 | 中国水利水电第五工程局有限公司 | Underground inclined shaft excavation measuring method |
| CN112985261A (en) * | 2021-02-05 | 2021-06-18 | 中铁隧道局集团有限公司 | Mobile dry dock prefabricated immersed tube joint measuring method |
| CN113356862A (en) * | 2021-07-01 | 2021-09-07 | 广西建工集团控股有限公司 | Full-automatic mud-water balanced type pipe jacking construction method based on built-in light target real-time dynamic control |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105466366A (en) * | 2015-11-26 | 2016-04-06 | 中国建筑股份有限公司 | High-rise frame-tube structure vertical absolute deformation and differential deformation monitoring device and method |
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| CN108488483A (en) * | 2018-02-09 | 2018-09-04 | 温州市城南市政建设维修有限公司 | A kind of pipeline non-excavating construction method |
| CN108759775A (en) * | 2018-03-14 | 2018-11-06 | 江苏恒久钢构有限公司 | A kind of method for building up of vertical control network |
| CN108916469A (en) * | 2018-07-19 | 2018-11-30 | 深圳市工勘岩土集团有限公司 | The construction method that small-bore pipeline is worked continuously |
| CN108645393A (en) * | 2018-08-13 | 2018-10-12 | 中铁二十局集团第工程有限公司 | A kind of push-bench posture three-dimension measuring system and method |
| CN111236957A (en) * | 2020-01-14 | 2020-06-05 | 广州坚磊建设有限公司 | Mechanical pipe jacking construction process |
| CN111337935A (en) * | 2020-03-17 | 2020-06-26 | 中国水利水电第五工程局有限公司 | Underground inclined shaft excavation measuring method |
| CN111337935B (en) * | 2020-03-17 | 2022-06-14 | 中国水利水电第五工程局有限公司 | Underground inclined shaft excavation measuring method |
| CN112985261A (en) * | 2021-02-05 | 2021-06-18 | 中铁隧道局集团有限公司 | Mobile dry dock prefabricated immersed tube joint measuring method |
| CN113356862A (en) * | 2021-07-01 | 2021-09-07 | 广西建工集团控股有限公司 | Full-automatic mud-water balanced type pipe jacking construction method based on built-in light target real-time dynamic control |
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