CN104391088A - Anchoring quality detection method and device for system anchor bar support roadway - Google Patents
Anchoring quality detection method and device for system anchor bar support roadway Download PDFInfo
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- CN104391088A CN104391088A CN201410740176.0A CN201410740176A CN104391088A CN 104391088 A CN104391088 A CN 104391088A CN 201410740176 A CN201410740176 A CN 201410740176A CN 104391088 A CN104391088 A CN 104391088A
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Abstract
The invention discloses an anchoring quality detection method and device for a system anchor bar support roadway. The method disclosed by the invention comprises the following steps: arranging a force measuring straight bar with a bearing pressure measuring function at a system anchor bar gap along the radial direction of the roadway, measuring the bearing pressure value of a roadway surrounding rock, drawing a relation curve of the bearing pressure value along with the depth change of the force measuring straight bar, and determining the proper anchoring quality of the system anchor bar according to the double peak values of the relation curve, wherein the bearing pressure curve of the roadway surrounding rock can have close double peak values by virtue of reasonable system anchor bar support parameters. The device disclosed by the invention comprises the force measuring straight bar arranged along the radial direction of the roadway, wherein multiple stress sensors are continuously and uniformly distributed on a bar body, in the length direction, of the force measuring straight bar; each stress sensor is connected with a singlechip control device; and the singlechip control device is sequentially connected with a data receiving device and an upper computer system consisting of a PC. According to the method and the device disclosed by the invention, the nondestructive testing can be realized, the operation is easy and convenient, and the detection result is relatively close to that in the actual stress condition.
Description
Technical field
The invention belongs to support of underground tunnel technical field of quality detection, be specifically related to a kind of method for detecting anchoring quality and pick-up unit of system anchor bolt supported laneway.
Background technology
Anchor pole is the important component part of underground passage surrounding rock supporting, it is the effective means solving underground passage stable problem, the anchor pole of inserting rock mass inside fully can improve and play the overall self in tunnel, but must arrange that many anchor poles form system anchor bolt layout and just can play effective anchorage effect at a certain distance according to drift section.Because anchor pole inserts the disguise installed, anchor bolt construction quality control is more difficult, and the tunnel unstability accident that system anchor bolt supporting quality difference causes often occurs.At present drawing detection and sound wave Non-Destructive Testing are mainly contained to the means of bolt supporting quality testing.Domestic and international drawing detects and usually adopts the mounted anchor pole of jack pair to carry out destructive drawing, time-consuming cost, simultaneously anchor rod drawing mechanics feature and anchor pole actual anchoring mechanics feature diverse, anchor pole actual forced status can not be reflected; The destructive defect that sound wave Non-Destructive Testing adopts sound wave R-T unit to overcome drawing to detect, but the method exists sensing part contact stabilization is poor, detection signal poor repeatability, accuracy of detection are not high limitation.Visible, although these two kinds of detection meanss are to determining that Detection of Bolt Bonding Integrity has important references meaning, but they have sizable error in test result, simultaneously all be partial to the installation quality determining single anchor pole, all cannot effectively detection system anchor pole entirety to the anchoring quality of roadway surrounding rock and action effect.
Summary of the invention
An object of the present invention is the problems referred to above existed for prior art, one is provided can effectively to realize carrying out Non-Destructive Testing to system anchor bolt supported laneway supporting quality, and easy and simple to handle, testing result is more close to the method for detecting anchoring quality of system anchor bolt supported laneway actual forced status.The method comprises the steps:
(1) according to system anchor bolt supported laneway country rock stress field situation, at system anchor bolt gap location, have the dynamometry straight-bar measuring support pressure function along tunnel radial arrangement, described dynamometry straight-bar length is longer than supporting rock-bolt length used;
(2) according to the roadway surrounding rock support pressure value that dynamometry straight-bar records, the relation curve of support pressure value with dynamometry straight-bar change in depth is drawn;
(3) can occur that bimodal carrys out the suitable anchor quality of certainty annuity anchor pole according to relation curve; Rational system anchor bolt supporting parameter can make the support pressure curve of roadway surrounding rock occur the bimodal that size is close.
Concrete, described in have the dynamometry straight-bar measuring support pressure function be realized by uniform some strain gauges continuous on the body of rod of dynamometry straight-bar length direction.
Two of object of the present invention is that providing a kind of makes testing result more close to the anchoring quality pick-up unit of system anchor bolt supported laneway actual forced status.This pick-up unit comprises the dynamometry straight-bar along tunnel radial arrangement, and described dynamometry straight-bar length is longer than supporting rock-bolt length used; Continuous uniform some strain gauges on the body of rod of dynamometry straight-bar length direction; Described each strain gauge is connected with monolithic processor control device, and described monolithic processor control device is connected with data sink, the master system that is made up of PC successively.
Concrete, between described monolithic processor control device and data sink, between data sink and master system, all adopt wireless connections.
Principle of work of the present invention and process as follows:
The present invention, according to system anchor bolt supported laneway country rock stress field situation, at system anchor bolt gap location, has the dynamometry straight-bar measuring support pressure function along tunnel radial arrangement; According to the roadway surrounding rock support pressure value that dynamometry straight-bar records, draw support pressure value with the relation curve of dynamometry straight-bar change in depth, can occur that bimodal carrys out the suitable anchor quality of certainty annuity anchor pole according to described relation curve; The roadway surrounding rock not carrying out supporting effect of pressing with being subject to can form plastic failure area, corresponding abutment pressure distribution curve only has a peak stress, the country rock that system anchor bolt energy reinforced roadway periphery destroys, correspondingly also can change support pressure curve shape, according to the analysis of distribution adding tunnel Surrounding rock abutment pressure after anchor, rational system anchor bolt supporting parameter can make the support pressure curve of roadway surrounding rock occur the bimodal that size is close.
Monolithic processor control device of the present invention is analyzed the support pressure value that each strain gauge on dynamometry straight-bar detects, and analysis result is passed to data sink; The data result of reception is passed to master system by data sink, and master system draws the relation curve of each support pressure value and the dynamometry straight-bar degree of depth.
The present invention has taken into full account the interaction of system anchor bolt and roadway surrounding rock, by support pressure curvilinear motion rule before and after contrast bolt supporting, more come the overall anchoring quality to roadway surrounding rock of detection system anchor pole and action effect close to tunnel actual loading situation.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of present system roadway supported by bolt anchoring quality pick-up unit.
Fig. 2 detects and support pressure curve synoptic diagram under non-supported laneway country rock.
Fig. 3 detects and support pressure curve synoptic diagram under using rational system anchor bolt supported laneway country rock.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
System anchor bolt supported laneway method for detecting anchoring quality provided by the invention, mainly detects anchoring quality according to the affecting laws that turns Surrounding rock abutment pressure curve to tunnel before and after system anchor bolt supporting.
As shown in Figure 1, to system anchor bolt supported laneway, according to country rock stress field situation, at the gap location of system anchor bolt 6, along tunnel radial arrangement dynamometry straight-bar 1, the body of rod of dynamometry straight-bar 1 is evenly equipped with the strain gauge 7 of some continuously, the support pressure of present position measured by each sensor 7, according to the roadway surrounding rock support pressure value that dynamometry straight-bar records, draw the relation curve of support pressure value with dynamometry straight-bar change in depth by master system 4, can occur that bimodal carrys out the suitable anchor quality of certainty annuity anchor pole according to relation curve.
The roadway surrounding rock not carrying out supporting effect of pressing with being subject to can form plastic failure area 5, and as shown in Figure 2, corresponding abutment pressure distribution curve 8 only has a peak stress.The country rock that system anchor bolt energy reinforced roadway periphery destroys, the corresponding shape that also can change abutment pressure distribution curve 8, analyze according to the regularity of distribution of tunnel Surrounding rock abutment pressure 8 after adding anchor, rational system anchor bolt supporting parameter can make the support pressure curve 8 of roadway surrounding rock occur the bimodal that size is close, as shown in Figure 3.
The present invention for realizing the pick-up unit of above-mentioned detection method, as shown in Figure 1.Comprise dynamometry straight-bar 1, monolithic processor control device 2, data sink 3, the master system 4 that is made up of PC.The body of rod of dynamometry straight-bar 1 is evenly equipped with the strain gauge 7 of some continuously; Monolithic processor control device 2 is analyzed the support pressure value that described dynamometry straight-bar 1 detects, and by wireless messages technology, analysis result is passed to data sink 3, the data result of reception is passed to master system 4 by data sink 3, and master system 4 draws the relation curve of support pressure value and the dynamometry straight-bar degree of depth.
Adopt system anchor bolt supported laneway method for detecting anchoring quality of the present invention and device, effectively can realize the Non-Destructive Testing to system anchor bolt supported laneway supporting quality, easy and simple to handle, testing result is more close to the actual forced status of system anchor bolt supported laneway.
With embodiment, system anchor bolt supported laneway method for detecting anchoring quality of the present invention and device are described in detail by reference to the accompanying drawings above; the present invention is not limited to content described above; in the ken that those skilled in the art possess; do not depart from the present invention and conceive the various changes made, still drop in protection scope of the present invention.
Claims (4)
1. a method for detecting anchoring quality for system anchor bolt supported laneway, is characterized in that comprising the steps:
(1) according to system anchor bolt supported laneway country rock stress field situation, at system anchor bolt gap location, have the dynamometry straight-bar measuring support pressure function along tunnel radial arrangement, described dynamometry straight-bar length is longer than supporting rock-bolt length used;
(2) according to the roadway surrounding rock support pressure value that dynamometry straight-bar records, the relation curve of support pressure value with dynamometry straight-bar change in depth is drawn;
(3) can occur that bimodal carrys out the suitable anchor quality of certainty annuity anchor pole according to relation curve; Rational system anchor bolt supporting parameter can make the support pressure curve of roadway surrounding rock occur the bimodal that size is close.
2. the method for detecting anchoring quality of system anchor bolt supported laneway according to claim 1, is characterized in that: described in have the dynamometry straight-bar measuring support pressure function be realized by uniform some strain gauges continuous on the body of rod of dynamometry straight-bar length direction.
3. realize a pick-up unit for the method for detecting anchoring quality of system anchor bolt supported laneway as claimed in claim 1, it is characterized in that: it comprises the dynamometry straight-bar along tunnel radial arrangement, described dynamometry straight-bar length is longer than supporting rock-bolt length used; Continuous uniform some strain gauges on the body of rod of dynamometry straight-bar length direction; Described each strain gauge is connected with monolithic processor control device, and described monolithic processor control device is connected with data sink, the master system that is made up of PC successively.
4. pick-up unit according to claim 3, is characterized in that: between described monolithic processor control device and data sink, all adopt wireless connections between data sink and master system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740176.0A CN104391088B (en) | 2014-12-08 | 2014-12-08 | A kind of method for detecting anchoring quality of system anchor bolt supported laneway and pick-up unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740176.0A CN104391088B (en) | 2014-12-08 | 2014-12-08 | A kind of method for detecting anchoring quality of system anchor bolt supported laneway and pick-up unit |
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| CN104391088A true CN104391088A (en) | 2015-03-04 |
| CN104391088B CN104391088B (en) | 2015-11-18 |
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| CN201410740176.0A Expired - Fee Related CN104391088B (en) | 2014-12-08 | 2014-12-08 | A kind of method for detecting anchoring quality of system anchor bolt supported laneway and pick-up unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241656A (en) * | 2015-10-30 | 2016-01-13 | 湖南科技大学 | Physical simulation experiment system and method of deep-tunnel high-resistance extensible anchor pole support |
| CN106089273A (en) * | 2016-08-19 | 2016-11-09 | 湖南科技大学 | A kind of rupture the multiple spot of roadway support by pressure grouting anchor pole for deep subregion |
| CN108955965A (en) * | 2018-07-27 | 2018-12-07 | 西南交通大学 | It is a kind of for detecting the detection device and method of suspension roof support stress spread range |
| CN111720173A (en) * | 2020-06-30 | 2020-09-29 | 上海应用技术大学 | Contact roadway surrounding rock load detector and roadway excavation load detection method |
| CN112129637A (en) * | 2020-10-20 | 2020-12-25 | 湖南科技大学 | Method for evaluating working state of coal mine tunnel anchor rod |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3571968B2 (en) * | 1999-09-02 | 2004-09-29 | 株式会社青木建設 | Ground anchor diagnosis method |
| CN1793898A (en) * | 2005-12-09 | 2006-06-28 | 重庆大学 | Non destructive detection mothod used for anchor rod anchored system |
| CN101650341A (en) * | 2009-07-16 | 2010-02-17 | 招商局重庆交通科研设计院有限公司 | Method for detecting anchoring quality of anchor rope and anchor rod based on reflection device embedded at bottom of hole in advance |
| CN101672746A (en) * | 2009-10-10 | 2010-03-17 | 河海大学 | System and method for detecting withdrawal resistance of anchoring body |
| CN102419346A (en) * | 2011-08-10 | 2012-04-18 | 中国矿业大学 | Bolting support quality detection method and detection device |
| JP4943061B2 (en) * | 2006-06-05 | 2012-05-30 | 青木あすなろ建設株式会社 | Anchor health evaluation method |
| CZ24534U1 (en) * | 2012-07-12 | 2012-11-12 | Ceská zemedelská univerzita v Praze | Device for testing bearing capacity of anchors when loading thereof by pull |
| CN204228694U (en) * | 2014-12-08 | 2015-03-25 | 湖南科技大学 | A kind of anchoring quality pick-up unit of system anchor bolt supported laneway |
-
2014
- 2014-12-08 CN CN201410740176.0A patent/CN104391088B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3571968B2 (en) * | 1999-09-02 | 2004-09-29 | 株式会社青木建設 | Ground anchor diagnosis method |
| CN1793898A (en) * | 2005-12-09 | 2006-06-28 | 重庆大学 | Non destructive detection mothod used for anchor rod anchored system |
| JP4943061B2 (en) * | 2006-06-05 | 2012-05-30 | 青木あすなろ建設株式会社 | Anchor health evaluation method |
| CN101650341A (en) * | 2009-07-16 | 2010-02-17 | 招商局重庆交通科研设计院有限公司 | Method for detecting anchoring quality of anchor rope and anchor rod based on reflection device embedded at bottom of hole in advance |
| CN101672746A (en) * | 2009-10-10 | 2010-03-17 | 河海大学 | System and method for detecting withdrawal resistance of anchoring body |
| CN102419346A (en) * | 2011-08-10 | 2012-04-18 | 中国矿业大学 | Bolting support quality detection method and detection device |
| CZ24534U1 (en) * | 2012-07-12 | 2012-11-12 | Ceská zemedelská univerzita v Praze | Device for testing bearing capacity of anchors when loading thereof by pull |
| CN204228694U (en) * | 2014-12-08 | 2015-03-25 | 湖南科技大学 | A kind of anchoring quality pick-up unit of system anchor bolt supported laneway |
Non-Patent Citations (2)
| Title |
|---|
| 张廷毅等: "锚杆锚固质量检测方法及应用", 《工程地球物理学报》 * |
| 张胜利等: "锚杆锚固质量无损检测方法分析", 《煤矿安全》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241656A (en) * | 2015-10-30 | 2016-01-13 | 湖南科技大学 | Physical simulation experiment system and method of deep-tunnel high-resistance extensible anchor pole support |
| CN105241656B (en) * | 2015-10-30 | 2017-10-27 | 湖南科技大学 | The physical simulation experiment system and method for deep tunnel high resistant Extendable anchor rod supporting |
| CN106089273A (en) * | 2016-08-19 | 2016-11-09 | 湖南科技大学 | A kind of rupture the multiple spot of roadway support by pressure grouting anchor pole for deep subregion |
| CN108955965A (en) * | 2018-07-27 | 2018-12-07 | 西南交通大学 | It is a kind of for detecting the detection device and method of suspension roof support stress spread range |
| CN111720173A (en) * | 2020-06-30 | 2020-09-29 | 上海应用技术大学 | Contact roadway surrounding rock load detector and roadway excavation load detection method |
| CN112129637A (en) * | 2020-10-20 | 2020-12-25 | 湖南科技大学 | Method for evaluating working state of coal mine tunnel anchor rod |
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