CN102493989A - Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device - Google Patents
Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device Download PDFInfo
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- CN102493989A CN102493989A CN2011104551372A CN201110455137A CN102493989A CN 102493989 A CN102493989 A CN 102493989A CN 2011104551372 A CN2011104551372 A CN 2011104551372A CN 201110455137 A CN201110455137 A CN 201110455137A CN 102493989 A CN102493989 A CN 102493989A
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Abstract
The invention relates to an auxiliary device for monitoring and measuring convergence points in the tunnel construction by a cross diaphragm (CRD) method and a method for burying the auxiliary device. The auxiliary device comprises an embedded fixed rod, a nut washer, a fixing nut, a measuring point connecting rod and a measuring point hook, wherein an expansion bolt head is formed at one end of the embedded fixed rod and is provided with an expansion piece, and the nut washer and the fixing nut are arranged at the other end of the embedded fixed rod; and the measuring point hook is arranged at one end of the measuring point connecting rod and is used for connecting a steel ruler convergence meter for measurement, and a threaded caliper retaining groove is formed at the other end of the measuring point connecting rod. When buried, the embedded fixed rod can be fixed in a tunnel side wall by putting the expansion bolt head formed at one end of the embedded fixed rod into a drilled hole and knocking the other end of the embedded fixed rod to ensure that the expansion piece expands to extrude surrounding rock; and the embedded fixed rod can be closely connected with the threaded caliper retaining groove because a thread is formed at the other end of the embedded fixed rod, and the measuring point hook on the measuring point connecting rod is used for connecting a convergence hook on the steel ruler convergence meter during measurement. The invention has the advantages that: the cost of manufacturing materials is low, the arrangement method is simple, measuring points can be effectively prevented from being damaged and the like.
Description
Technical field
The present invention relates to the monitoring measurement field, monitoring measurement convergence measuring point auxiliary device and method for embedding in the construction of specifically a kind of tunnel CRD method.
Background technique
The monitoring measurement technology is the important component part of modern tunnel construction; It is the important means of monitoring country rock and structure stability; When carrying out tunnel construction, especially above surrounding rock tunnel construction monitoring measurement is absolutely necessary for the IV level, and it is to guarantee the preliminary bracing safe and reasonable; Confirm that secondary lining executes the critical process of the time of work, and each working procedure in the hole is connected important directive significance is arranged.Revise design parameter through monitoring measurement and timely feedback information, with reach reasonable in design, the purpose efficiently of constructing.After the underground cavern excavation, country rock periphery convergence and arch sink be the reflection country rock with support system mechanics condition the most directly, the most tangible physical quantity, sink to monitoring the steady state that can understand country rock and support system through country rock convergence and arch.Monitoring measurement can be in the work progress in tunnel; Measurement to country rock and supporting, lining cutting force and deformation state; Through the analysis of measurement being judged the stability and the stress-strain state of surrounding rock supporting, judge whether tunnel and country rock are stablized and safety, and proofread and correct, revise the design and guidance construction thus; Evaluation preliminary bracing and two lining designed rationality, thereby guiding construction, Feedback Design and design is optimized.
Surrouding rock deformation data when excavating in order in time to obtain face, the monitoring point often is laid in apart from excavated section nearby, and the convergence measuring point hook of in the past laying; Expose outside abutment wall greatly; The drawback of doing like this is, because the explosion of face, rubble might be pounded the measuring point of laying; Perhaps remove the slag car and forklift and can run into measuring point, thereby cause the distortion of measuring point hook.
Summary of the invention
The objective of the invention is for overcoming the deficiency of above-mentioned existing technology, provide a kind of simple in structure, cost is low, can effectively prevent monitoring measurement convergence measuring point auxiliary device and method for embedding in the construction of the ruined tunnel of measuring point CRD method.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
Monitoring measurement convergence measuring point auxiliary device in the CRD method construction of a kind of tunnel; Comprise embedded fixing rod, cap colalr gasket, hold-doun nut, measuring point connecting rod, measuring point hook, said embedded fixing rod one end is the EXPANSION ANCHOR BOLTS head, which is provided with intumescent sheet; The other end is a threaded end; Be rotary with cap colalr gasket and hold-doun nut on it, measuring point connecting rod one end is provided with and is used to connect the measuring point hook that the steel ruler contraction meter is measured, the other end be with embedded fixing rod on the screw callipers dislocation preventing slot of threads engaged.
Screw thread form in the screw callipers dislocation preventing slot of said measuring point connecting rod one end is consistent with the shape of embedded fixing rod threaded end, guarantees each interior voidlessness of screw callipers dislocation preventing slot when finishing that connects.Embedded fixing rod is wanted the least possible exposing beyond tunnel side wall satisfy connecting when finishing in the screw callipers dislocation preventing slot under the void-free prerequisite.
The method for embedding of monitoring measurement convergence measuring point auxiliary device in the tunnel CRD method construction, step is following:
(1) EXPANSION ANCHOR BOLTS one end of embedded fixing rod is inserted among the country rock of tunnel-side, knock the end intumescent sheet is fully expanded, tentatively be fixed on country rock inside;
(2) tighten the hold-doun nut of the other end, make embedded fixing rod fully be fixed on country rock inside, and guarantee the least possible exposing beyond tunnel side wall of embedded fixing rod;
When (3) measuring, the measuring point connecting rod is taken out, and make and be provided with screw callipers dislocation preventing slot one end and fully be connected, and guarantee to connect the interior voidlessness of screw callipers dislocation preventing slot when finishing with embedded fixing rod;
(4) the measurement hook with the steel ruler contraction meter is connected with the end that the measuring point connecting rod is provided with the measuring point hook, carries out convergence measurement;
(5) after measurement finishes, the measuring point connecting rod is unloaded, packs up.
The present invention in use; Among the country rock of elder generation with the EXPANSION ANCHOR BOLTS one end insertion tunnel-side of embedded fixing rod; Knock the end intumescent sheet is fully expanded, tentatively be fixed on country rock inside, tighten the nut of the other end then; Make embedded fixing rod fully fixing, and guarantee the least possible exposing beyond tunnel side wall of embedded fixing rod.During measurement, when measuring earlier, the measuring point connecting rod is taken out, and make and be provided with screw callipers dislocation preventing slot one end and fully be connected, and guarantee to connect the interior voidlessness of screw callipers dislocation preventing slot when finishing with embedded fixing rod.Can the measurement hook of steel ruler contraction meter be connected with the end that the measuring point connecting rod is provided with the measuring point hook then, carry out convergence measurement.
When the present invention can avoid the face explosion, rubble was pounded the measuring point of laying, and perhaps removed the slag car and forklift and can run into measuring point, thereby cause the problem of measuring point hook distortion.The present invention has that the Manufacturing material cost is low, and distribution method is simple, advantage such as can effectively prevent that measuring point is destroyed.
Description of drawings
Fig. 1 is a structural representation of the present invention;
1. embedded fixing rods wherein, 2. measuring point connecting rod, 3. intumescent sheet, 4. cap colalr gasket, 5. measuring point hook, 6. hold-doun nut, 7. screw callipers dislocation preventing slot.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1; Monitoring measurement convergence measuring point auxiliary device in the CRD method construction of a kind of tunnel, embedded fixing rod 1 one ends are the EXPANSION ANCHOR BOLTS head, which is provided with intumescent sheet 3; Put it in the boring during use; Knock the other end and make intumescent sheet 3 expand change greatly, the extruding country rock just can be fixed among the tunnel side wall; The other end is provided with cap colalr gasket 4 and hold-doun nut 6, is used for further fixedly embedded formula fixing rod 1, and measuring point connecting rod 2 one ends are provided with measuring point hook 5, is used to connect the steel ruler contraction meter and measures, and the other end is a screw callipers dislocation preventing slot 7.
Screw thread form in the measuring point connecting rod 2 wants consistent with the shape of embedded fixing rod 1 threaded end, voidlessness in the screw callipers dislocation preventing slot 7 when the each connection of assurance finishes.Embedded fixing rod 1 is wanted the least possible exposing beyond tunnel side wall satisfy connecting when finishing in the screw callipers dislocation preventing slot 7 under the void-free prerequisite.
The convergence measurement method is following:
(1) EXPANSION ANCHOR BOLTS one end of embedded fixing rod 1 is inserted among the country rock of tunnel-side, knock the end intumescent sheet 3 is fully expanded, tentatively be fixed on country rock inside;
(2) tighten the hold-doun nut 6 of the other end, make embedded fixing rod 1 fully be fixed on country rock inside, and guarantee embedded fixing rod 1 the least possible exposing beyond tunnel side wall;
When (3) measuring, measuring point connecting rod 2 is taken out, and make and be provided with screw callipers dislocation preventing slot 7 one ends and fully be connected with embedded fixing rod 1, and screw callipers dislocation preventing slot 7 interior voidlessnesss when guaranteeing that connection finishes;
(4) the measurement hook with the steel ruler contraction meter is connected with the end that measuring point connecting rod 2 is provided with measuring point hook 5, carries out convergence measurement;
(5) after measurement finishes, measuring point connecting rod 2 is unloaded, packs up.
Claims (3)
1. monitoring measurement convergence measuring point auxiliary device during a tunnel CRD method is constructed; It is characterized in that: comprise embedded fixing rod, cap colalr gasket, hold-doun nut, measuring point connecting rod, measuring point hook; Embedded fixing rod one end is the EXPANSION ANCHOR BOLTS head; Which is provided with intumescent sheet, the other end is a threaded end, is rotary with cap colalr gasket and hold-doun nut on it; Measuring point connecting rod one end is provided with and is used to connect the measuring point hook that the steel ruler contraction meter is measured, the other end be with embedded fixing rod on the screw callipers dislocation preventing slot of threads engaged.
2. monitoring measurement convergence measuring point auxiliary device in a kind of tunnel according to claim 1 CRD method construction, it is characterized in that: the screw thread form in the screw callipers dislocation preventing slot of said measuring point connecting rod one end is consistent with the shape of embedded fixing rod threaded end.
3. the method for embedding of an auxiliary device according to claim 1 or claim 2 is characterized in that, step is following:
(1) EXPANSION ANCHOR BOLTS one end of embedded fixing rod is inserted among the country rock of tunnel-side, knock the end intumescent sheet is fully expanded, tentatively be fixed on country rock inside;
(2) tighten the hold-doun nut of the other end, make embedded fixing rod fully be fixed on country rock inside, and guarantee the least possible exposing beyond tunnel side wall of embedded fixing rod;
When (3) measuring, the measuring point connecting rod is taken out, and make and be provided with screw callipers dislocation preventing slot one end and fully be connected, and guarantee to connect the interior voidlessness of screw callipers dislocation preventing slot when finishing with embedded fixing rod;
(4) the measurement hook with the steel ruler contraction meter is connected with the end that the measuring point connecting rod is provided with the measuring point hook, carries out convergence measurement;
(5) after measurement finishes, the measuring point connecting rod is unloaded, packs up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104551372A CN102493989A (en) | 2011-12-30 | 2011-12-30 | Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104551372A CN102493989A (en) | 2011-12-30 | 2011-12-30 | Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device |
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| CN102493989A true CN102493989A (en) | 2012-06-13 |
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| CN2011104551372A Pending CN102493989A (en) | 2011-12-30 | 2011-12-30 | Auxiliary device for monitoring and measuring convergence points in tunnel construction by cross diaphragm (CRD) method and method for burying auxiliary device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244538A (en) * | 2013-05-22 | 2013-08-14 | 太仓华众金属制品有限公司 | Multifunctional long foundation bolt |
| CN103291724A (en) * | 2013-06-21 | 2013-09-11 | 山东科技大学 | Adjusting nut for roadway surrounding rock convergence and deformation monitoring and using method thereof |
| CN105136100A (en) * | 2015-04-29 | 2015-12-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Tunnel convergence deformation monitoring method and device thereof |
| CN105627895A (en) * | 2014-11-06 | 2016-06-01 | 宏润建设集团股份有限公司 | Tunnel convergence monitoring method |
| CN105627986A (en) * | 2016-04-08 | 2016-06-01 | 中铁西南科学研究院有限公司 | Underground engineering vault crown settlement measurement device based on total station method |
| CN105783865A (en) * | 2016-04-08 | 2016-07-20 | 中铁西南科学研究院有限公司 | Underground engineering vault crown settlement measuring device based on level method |
| CN106895053A (en) * | 2017-04-07 | 2017-06-27 | 北京科技大学 | A kind of anchor surveys integral type monitoring measurement expansion bolt |
| CN108827231A (en) * | 2018-07-13 | 2018-11-16 | 山东大学 | A kind of City Building settlement monitoring device that can be tamper-proof and application method |
| 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 |
| CN112728367A (en) * | 2020-11-30 | 2021-04-30 | 江苏德联达智能科技有限公司 | Novel set top box |
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| CN202418148U (en) * | 2011-12-30 | 2012-09-05 | 山东大学 | Auxiliary device for monitoring and measuring convergence measuring point in tunnel CRD method construction |
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| CN2155460Y (en) * | 1993-03-02 | 1994-02-09 | 张来芳 | Tight nut |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244538A (en) * | 2013-05-22 | 2013-08-14 | 太仓华众金属制品有限公司 | Multifunctional long foundation bolt |
| CN103291724A (en) * | 2013-06-21 | 2013-09-11 | 山东科技大学 | Adjusting nut for roadway surrounding rock convergence and deformation monitoring and using method thereof |
| CN105627895A (en) * | 2014-11-06 | 2016-06-01 | 宏润建设集团股份有限公司 | Tunnel convergence monitoring method |
| CN105136100A (en) * | 2015-04-29 | 2015-12-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Tunnel convergence deformation monitoring method and device thereof |
| CN105627986A (en) * | 2016-04-08 | 2016-06-01 | 中铁西南科学研究院有限公司 | Underground engineering vault crown settlement measurement device based on total station method |
| CN105783865A (en) * | 2016-04-08 | 2016-07-20 | 中铁西南科学研究院有限公司 | Underground engineering vault crown settlement measuring device based on level method |
| CN106895053A (en) * | 2017-04-07 | 2017-06-27 | 北京科技大学 | A kind of anchor surveys integral type monitoring measurement expansion bolt |
| CN108827231A (en) * | 2018-07-13 | 2018-11-16 | 山东大学 | A kind of City Building settlement monitoring device that can be tamper-proof and application method |
| 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 |
| CN112728367A (en) * | 2020-11-30 | 2021-04-30 | 江苏德联达智能科技有限公司 | Novel set top box |
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Application publication date: 20120613 |