CN102636153A - Observation method of crown settlement and periphery convergence of tunnel - Google Patents
Observation method of crown settlement and periphery convergence of tunnel Download PDFInfo
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- CN102636153A CN102636153A CN2012101232308A CN201210123230A CN102636153A CN 102636153 A CN102636153 A CN 102636153A CN 2012101232308 A CN2012101232308 A CN 2012101232308A CN 201210123230 A CN201210123230 A CN 201210123230A CN 102636153 A CN102636153 A CN 102636153A
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Abstract
The invention discloses an observation method of crown settlement and periphery convergence of a tunnel. The observation method comprises the following steps of: forming a new excavated section of the tunnel, then replacing a hanging hook by an ordinary reflective sticker, firmly sticking the ordinary reflective sticker as a measuring point on the wall of the tunnel, and marking in the center position of the sticker; measuring three-dimensional coordinates of the measuring point by using an ordinary engineering 2'' electronic total station through a prismatic-free measurement method, thus fast getting the relative variation of elevation and position according to the three-dimensional coordinate data values measured every time, and further knowing the crown settlement and the peripheral wall rock displacement variation. According to the method disclosed by the invention, the precision and the speed of the crown settlement and the periphery convergence during monitoring and measurement of the tunnel can be effectively improved, accurate data can be provided for construction of the tunnel and the construction can be guided.
Description
Technical field
The invention belongs to a kind of improving one's methods of tunnel vault sedimentation and surrounding rock displacement convergence observation of carrying out.
Background technology
Monitoring measurement is meant in the constructing tunnel process, to the distortion and the steady state (SS) of country rock, the face of land, supporting construction, and surrounding enviroment current observation and the measurement work dynamically carried out.Guarantee construction safety and structure long-term stability to understand and grasp the adjoining rock stability state and the supporting structure system degree of reliability; For change country rock rank, the parameter of adjusting preliminary bracing and secondary lining, guiding construction order, correction and optimal design in the constructing tunnel provide foundation, be to realize the indispensable one procedure of information-based design and construction.Wherein to sink with horizontal convergence be wherein the project of must surveying while also to be the most important monitoring content of fundamental sum to vault.In the tradition monitoring measurement, the vault deflection is established the peg of 1 buckle usually and is hung steel tape at the vault axis place of peripheral convergence measurement one section, measures the absolute deflection of tunnel vault with precision level.Convergence is the relative displacement value on two point of fixity lines of tunnel perimeter relative direction, and it is that surrouding rock deformation that tunnel excavation causes shows the most intuitively, adopts convergence instrument to measure.After the tunnel excavation explosion in the both sides, tunnel abutment wall, haunch horizontal direction bury measuring staff or bulb peg underground, the depth of burying is about 20 ~ 30mm, bore diameter is 40 ~ 50mm, fixes with quick talking cement.The vault sedimentation all is that the point that need bury the band hook underground is realized observing with convergence observation in classic method, when carrying out the vault settlement observation because the tunnel lining cutting last as head room about 8 meters, tape measure is difficult to hang up when therefore observing; In addition, constructing tunnel generally can run into more underground water and cause muddy more spirit-leveling instrument turning point precision is impacted in the hole in early stage, and steel tape distortion, stressed, hook position on an equal basis factor also can impact accuracy of observation.Equally for convergence observation; The tunnel adopts when dividing bench cut method; When excavating out first step; Just need begin observation, just be faced with the embarrassment that just can't convergence instrument not hung up measuring point after digging out when getting out of a predicament or an embarrassing situation, simultaneously because the ruler of convergence instrument receives the sagging and stressed influence of gravity effect to cause precision can't accurately analyze the result of country rock situation inadequately by plant equipment.In a word, utilize traditional burying a little and observation procedure, though used high-precision instrument, very inconvenience and effect are not fine.
Summary of the invention
The purpose of this invention is to provide a kind of efficiently, fast, accurately, tunnel vault sedimentation easily and peripheral convergent observation procedure; This method can improve vault sedimentation and peripheral convergent precision and speed in the tunnel monitoring measurement effectively; For constructing tunnel provides accurate data, guiding construction.
The step of tunnel of the present invention vault sedimentation and peripheral convergent observation procedure is such:
1, sign measuring point: replace hook firmly to be attached on the tunnel wall with common reflective sticker after new excavated section forms in the tunnel, do mark in the paster center as measuring point.
2, measure coordinate: adopt the method for no prism measurement to measure the three-dimensional coordinate of measuring point with common engineering with 2 ＂ total powerstations, the each coordinate data value of measuring of record.
3, measuring and calculating sedimentation and offset variable: the three-dimensional coordinate data value according to each measurement just can draw the relative variation of elevation, position fast, promptly knows vault settling amount and peripheral rock displacement variable.
Embodiment
The step of tunnel of the present invention vault sedimentation and peripheral convergent observation procedure is such:
1, sign measuring point: replace hook firmly to be attached on the tunnel wall with common reflective sticker after new excavated section forms in the tunnel, do mark in the paster center as measuring point.
2, measure coordinate: adopt the method for no prism measurement to measure the three-dimensional coordinate of measuring point with common engineering with 2 ＂ total powerstations, the each coordinate data value of measuring of record.
3, measuring and calculating sedimentation and offset variable: the three-dimensional coordinate data value according to each measurement just can draw the relative variation of elevation, position fast, promptly knows vault settling amount and peripheral rock displacement variable.
Case study on implementation:
Guangxi Bai Jing is outer village, centre, five mark Gansu Province tunnel monitoring measurement instance at a high speed:
Guangxi Bai Jing at a high speed outer village, centre, five mark Gansu Province joins arch tunnel monitoring measurement content and comprises contents such as ground settlement, vault sedimentation, periphery convergence, geology advanced prediction, and wherein vault sedimentation and periphery are restrained burying underground of two observation stations and adopted left hole to bury hook point and right hole with traditional approach to paste the reflective sticker dual mode with new mode and carry out simultaneously.Through contrast, with tradition bury a little and the workload of observed pattern every day very big, often need several hrs to have surveyed when 3,4 sections are arranged, and need influence site operation by a lot of equipment, the result who measures also is not very accurate; Adopt new bury a little and then only need set up total powerstation at an arbitrary position during observed pattern get final product, do not need other equipment to assist, do not influence site operation, measuring speed, precision each item index all are greatly improved.
Claims (1)
1. a tunnel vault sedimentation and peripheral convergent observation procedure, the step of its observation procedure is following:
1), sign measuring point: replace hook firmly to be attached on the tunnel wall with common reflective sticker after new excavated section forms in the tunnel, do mark in the paster center as measuring point;
2), measure coordinate: adopt the method for no prism measurement to measure the three-dimensional coordinate of measuring point with common engineering with 2 ＂ total powerstations, the each coordinate data value of measuring of record;
3), measuring and calculating sedimentation and offset variable: the three-dimensional coordinate data value according to each measurement just can draw the relative variation of elevation, position fast, promptly knows vault settling amount and peripheral rock displacement variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101232308A CN102636153A (en) | 2012-04-25 | 2012-04-25 | Observation method of crown settlement and periphery convergence of tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101232308A CN102636153A (en) | 2012-04-25 | 2012-04-25 | Observation method of crown settlement and periphery convergence of tunnel |
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| CN102636153A true CN102636153A (en) | 2012-08-15 |
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| CN2012101232308A Pending CN102636153A (en) | 2012-04-25 | 2012-04-25 | Observation method of crown settlement and periphery convergence of tunnel |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175505A (en) * | 2013-03-05 | 2013-06-26 | 中国科学院武汉岩土力学研究所 | Tunnel vault subsidence monitoring device and method |
| CN104296668A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | Method for external measurement of settlement of foundation of storage tank |
| CN105222714A (en) * | 2015-09-28 | 2016-01-06 | 长安大学 | A kind of method improving total powerstation Opposite side survey tunnel clearance convergence precision |
| CN105258674A (en) * | 2015-10-13 | 2016-01-20 | 中国十七冶集团有限公司 | Method for observing settlement and convergence of tunnel |
| CN107806868A (en) * | 2017-10-09 | 2018-03-16 | 中国十七冶集团有限公司 | A kind of contactless method for monitoring measuring |
| CN108590671A (en) * | 2018-05-14 | 2018-09-28 | 姚晓宁 | A kind of five steps, 14 excavation methods under advanced strong supporting system |
| CN109405815A (en) * | 2018-12-05 | 2019-03-01 | 长安大学 | A kind of rapid fixing and method for measurement perimeter convergence in tunnel |
| CN109631838A (en) * | 2019-01-22 | 2019-04-16 | 中铁隧道勘察设计研究院有限公司 | A kind of railway tunnel distortion monitoring points and method for embedding |
| CN111288897A (en) * | 2020-03-23 | 2020-06-16 | 长安大学 | Surrounding rock internal absolute displacement measuring device and method based on displacement meter and total station |
| CN115127531A (en) * | 2022-06-22 | 2022-09-30 | 保利长大工程有限公司 | Device for rapidly arranging tunnel monitoring measuring points and construction method |
Citations (2)
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| CN101886916A (en) * | 2010-06-13 | 2010-11-17 | 中国科学院武汉岩土力学研究所 | Optical observation device of deformation in surrounding rock |
| CN202074959U (en) * | 2011-04-13 | 2011-12-14 | 中铁西南科学研究院有限公司 | Point measuring device of deformation monitoring combination for tunnel engineering |
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- 2012-04-25 CN CN2012101232308A patent/CN102636153A/en active Pending
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| CN101886916A (en) * | 2010-06-13 | 2010-11-17 | 中国科学院武汉岩土力学研究所 | Optical observation device of deformation in surrounding rock |
| CN202074959U (en) * | 2011-04-13 | 2011-12-14 | 中铁西南科学研究院有限公司 | Point measuring device of deformation monitoring combination for tunnel engineering |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175505A (en) * | 2013-03-05 | 2013-06-26 | 中国科学院武汉岩土力学研究所 | Tunnel vault subsidence monitoring device and method |
| CN103175505B (en) * | 2013-03-05 | 2014-12-17 | 中国科学院武汉岩土力学研究所 | Tunnel vault subsidence monitoring device and method |
| CN104296668A (en) * | 2014-09-25 | 2015-01-21 | 中国石油化工股份有限公司 | Method for external measurement of settlement of foundation of storage tank |
| CN104296668B (en) * | 2014-09-25 | 2017-12-05 | 中国石油化工股份有限公司青岛安全工程研究院 | The externally measured method of tank foundation sedimentation |
| CN105222714A (en) * | 2015-09-28 | 2016-01-06 | 长安大学 | A kind of method improving total powerstation Opposite side survey tunnel clearance convergence precision |
| CN105258674A (en) * | 2015-10-13 | 2016-01-20 | 中国十七冶集团有限公司 | Method for observing settlement and convergence of tunnel |
| CN107806868A (en) * | 2017-10-09 | 2018-03-16 | 中国十七冶集团有限公司 | A kind of contactless method for monitoring measuring |
| CN108590671A (en) * | 2018-05-14 | 2018-09-28 | 姚晓宁 | A kind of five steps, 14 excavation methods under advanced strong supporting system |
| CN109405815A (en) * | 2018-12-05 | 2019-03-01 | 长安大学 | A kind of rapid fixing and method for measurement perimeter convergence in tunnel |
| CN109405815B (en) * | 2018-12-05 | 2024-03-19 | 长安大学 | Quick fixing device and method for measuring peripheral convergence in tunnel |
| CN109631838A (en) * | 2019-01-22 | 2019-04-16 | 中铁隧道勘察设计研究院有限公司 | A kind of railway tunnel distortion monitoring points and method for embedding |
| CN111288897A (en) * | 2020-03-23 | 2020-06-16 | 长安大学 | Surrounding rock internal absolute displacement measuring device and method based on displacement meter and total station |
| CN111288897B (en) * | 2020-03-23 | 2021-08-17 | 长安大学 | Surrounding rock internal absolute displacement measuring device and method based on displacement meter and total station |
| CN115127531A (en) * | 2022-06-22 | 2022-09-30 | 保利长大工程有限公司 | Device for rapidly arranging tunnel monitoring measuring points and construction method |
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Application publication date: 20120815 |