CN106595548A - Displacement measuring method for the inner part of enclosing rock for tunnel inner face - Google Patents

Displacement measuring method for the inner part of enclosing rock for tunnel inner face Download PDF

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Publication number
CN106595548A
CN106595548A CN201611189203.5A CN201611189203A CN106595548A CN 106595548 A CN106595548 A CN 106595548A CN 201611189203 A CN201611189203 A CN 201611189203A CN 106595548 A CN106595548 A CN 106595548A
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CN
China
Prior art keywords
pipe
inclinometer pipe
tunnel
measurement
hole
Prior art date
Application number
CN201611189203.5A
Other languages
Chinese (zh)
Inventor
朱永全
孙明磊
高新强
刘志春
李新志
高焱
Original Assignee
石家庄铁道大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 石家庄铁道大学 filed Critical 石家庄铁道大学
Priority to CN201611189203.5A priority Critical patent/CN106595548A/en
Publication of CN106595548A publication Critical patent/CN106595548A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/02Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring length, width, or thickness

Abstract

The invention discloses a displacement measuring method for the inner part of enclosing rock for tunnel inner face, comprising the following steps: 1) making external preparations for front hole measurement including the preparing of tilting measurement pipes, the fastening of measurement rings to the tilting measurement pipes, the detachably fastening of sliding type micrometer probes or sliding type settling instrument probes inside the tilting measurement pipes, the fixed connecting among the tilting measurement pipes, the installing of the bottom covers of the tilting measurement pipes and the preparing of grouting pipes; 2) drilling measurement holes through the use of a RPD-75SL-H2 multi-function drilling machine; 3) installing the tilting measurement pipes into the drilled holes wherein the diameters of the tilting measurement pipes are smaller than the diameters of the drilled holes; 4) injecting cement mortar into the silts among the tilting measurement pipes and the measurement holes so that the measurement rings are integrated with the ground layer as one; and 5) applying the sliding type micrometers to conduct the measurement on the internal longitudinal displacement at the inner part of the tunnel face; and applying the sliding type settling instrument to measure the settlement at the inner part of the tunnel face.

Description

A kind of displacement measurement method in tunnel inside face country rock
Technical field
The invention belongs to tunnel surrounding field of measuring technique, and in particular to the displacement in a kind of tunnel inside face country rock Measuring method.
Background technology
At present, internal displacement for surrounding rock common method is measured in Tunnel Engineering includes:Multipoint displacement meter measurement method and whole station type Electronic tachometer measurement method.The characteristics of measuring internal displacement for surrounding rock method using multipoint displacement meter can be that more flexible measurement is enclosed The shift value of multiple spot in rock;Have the disadvantage that measuring point survival rate is relatively low, affected larger by tunnel excavation construction.Using whole station type electronics Tacheometer measurement internal displacement for surrounding rock advantage can be quick, the accurate shift value for measuring and obtaining multiple spot in country rock;Have the disadvantage only Excavation section can be measured to the deformation of face country rock, and cannot measure face is affected the non-excavation section of front of tunnel heading to by excavation The deformation of country rock, and measurement data relies on survey crew, it is impossible to accomplish measurement in real time, but come as surrounding rock displacement measurement Say, the real-time of data is extremely important.
For example, Chinese invention patent document number is that 201310024219.0 patent document discloses a kind of detection country rock depth The installation method of the multipoint displacement meter of portion's displacement, its step is as follows:The test point for successively decreasing successively is fixed on and grew its upper one On the lead of the fixing point of level, displacement meter is provided with by fixing device on test point;Bundles of fixing device and lead will be tied Sequentially pass through Len req takes the hollow connecting tube for being segmented connected mode, until a most long fixing device stretches out the mouth of pipe And it is stuck, other fixing devices are fixed on corresponding position in pipe, and multiple spot fixing device installs one-time-reach-place;Lead will be installed with Hollow connecting tube is put in order;First the hollow connecting tube in bosom is sent into into drilling, remaining is sequentially connected in order feeding drilling Until being all put in place;Disposably extract hollow connecting tube out, fixing device is ejected from pipe situ, is fixed on hole wall.This The bright workload that can solve traditional connecting rod installation presence is big, efficiency is low, success rate is low and easily causes the technologies such as hole clipping asks Topic.
In consideration of it, the invention provides the displacement measurement method in a kind of tunnel inside face country rock, present invention employing Slide attack measures the length travel inside face and measures the settling amount inside face using slidingtype sedimentometer.This Invention methods described not only can measure face inside length travel and can measure face inside settling amount, meanwhile, The deformation values of multiple spot in country rock can be flexibly measured, measuring point survival rate is high, and certainty of measurement is high, and measurement data is enriched, Ke Yishi When measurement obtain deformation in surrounding rock data, for tunnel safe construction provide data support.
The content of the invention
A kind of displacement measurement method in tunnel inside face country rock, the measuring method application slidingtype micrometer is measured Measure face inside length travel and measure the settling amount inside face using slidingtype sedimentometer, comprise the steps:
Step 1:Measure and prepare outside front hole, including prepare inclinometer pipe, will survey ring be fixed on inclinometer pipe, by slidingtype micrometer What meter detecting head or slidingtype sedimentometer detecting head can be moved be fixed on being fixedly connected inside inclinometer pipe, between inclinometer pipe, The installation of inclinometer pipe bottom and preparation Grouting Pipe;
Step 2:Measured hole is bored, is drilled using RPD -75SL-H2 multifunctional hole-drilling machines;
Step 3:Inclinometer pipe is installed in the hole that step 2 is bored, the diameter of inclinometer pipe is less than the diameter for drilling;
Step:4:Cement mortar will be injected between the gap of inclinometer pipe and measured hole, make survey ring be combined into one with stratum;
Step 5:Face inside length travel is measured using slidingtype micrometer, is measured using slidingtype sedimentometer Settling amount inside face.
Further, inclinometer pipe is managed using φ 70PVC in step 1, and every section of deviational survey pipe range 3m installs 3 outside every inclinometer pipe Individual survey ring, spacing 1m, most external surveys end 0.5m of the ring away from inclinometer pipe.
Further, the installation of inclinometer pipe bottom includes in step 1:First, by inclinometer pipe bottom and the bottom of inclinometer pipe Coating bridging agent, then, by inclinometer pipe bottom the bottom of inclinometer pipe is fixedly mounted on, finally, with adhesive tape or sealing strip by deviational survey The position seals that ttom of pipe lid is connected with deviational survey bottom of the tube are processed.
Further, step 1 also includes the step being fixed on Grouting Pipe on inclinometer pipe.
Further, the step of emptying the water in hole, rubble impurity is also included in step 2.
Further, the step of boring grout outlet is also included in step 2, the grout outlet is located at bottom hole portion to hole body middle part, The spacing of the grout outlet is 20-25cm.
Further, in step 2 measured hole include carry slidingtype micrometer detecting head inclinometer pipe measured hole and Carry the measured hole of the inclinometer pipe of slidingtype sedimentometer detecting head.
Further, the step of aperture insertion exhaustor is additionally included in step 3, the insertion depth of exhaustor is apart from aperture 50-80cm。
Further, cement injection adopts UB3.0 type slurry pumps in step 4.
Further, adjacent two inclinometer pipes are fixedly connected by deviational survey pipe joint, and deviational survey pipe joint includes convex positioning Labelling, the end of inclinometer pipe includes recessed telltale mark, and convex telltale mark is matched with recessed telltale mark.
Further, the step of sealing aperture with Anchor Agent is also included in step 3.
Compared with prior art, superior effect of the invention is:
1st, the displacement measurement method in tunnel of the present invention inside face country rock, by surveying ring measured hole is imbedded It is interior and filled with cement mortar, make measuring point survival rate high.
2nd, the displacement measurement method in tunnel of the present invention inside face country rock, is detected by slidingtype micrometer The setting of head and slidingtype sedimentometer detecting head, can in real time measure and obtain deformation in surrounding rock data.
3rd, the displacement measurement method in tunnel of the present invention inside face country rock, by by slidingtype micrometer and Slidingtype sedimentometer is separately fixed in different inclinometer pipes and uses cooperatively, and makes certainty of measurement high, and measurement data is enriched.
Description of the drawings
Fig. 1 is the displacement measurement method in a kind of tunnel of the present invention inside face country rock.
Specific embodiment
The specific embodiment of the invention is described in further detail below.
As shown in Figure 1, a kind of displacement measurement method in tunnel inside face country rock, the measuring method application is slided Dynamic formula micrometer measures face inside length travel and measures the settling amount inside face using slidingtype sedimentometer, including Following steps:
Step 1:Measure and prepare outside front hole, including prepare inclinometer pipe, will survey ring be fixed on inclinometer pipe, by slidingtype micrometer What meter detecting head or slidingtype sedimentometer detecting head can be moved be fixed on being fixedly connected inside inclinometer pipe, between inclinometer pipe, The installation of inclinometer pipe bottom and preparation Grouting Pipe;
Step 2:Measured hole is bored, is drilled using RPD -75SL-H2 multifunctional hole-drilling machines;
Step 3:Inclinometer pipe is installed in the hole that step 2 is bored, the diameter of inclinometer pipe is less than the diameter for drilling;
Step:4:Cement mortar will be injected between the gap of inclinometer pipe and measured hole, make survey ring be combined into one with stratum;
Step 5:Face inside length travel is measured using slidingtype micrometer, is measured using slidingtype sedimentometer Settling amount inside face.
In step 2, because drill bit coordinates with the gap of rig during drilling, drill bit meeting nature is downward-sloping, generally bores Try one's best 1 ° to 2 ° upward in hole.
Slidingtype micrometer adopts the T-REX types of SISGEO companies of Italy, slidingtype sedimentometer to adopt domestic XB338-B Intelligent digital type.
In order to be beneficial to the accurate of data, installing survey ring will ensure towards same direction, but, if in middle or termination Individual survey ring is deliberately reversed, may also operate as reference role, there is being mutually authenticated using data, because slide attack insertion deviational survey Guan Zhongke accurately measures the two adjacent actual pitch for surveying interannular, once reversed data can be abnormal.
Also include the guide groove that can make slidingtype sedimentometer detecting head or the movement of slidingtype micrometer detecting head in inclinometer pipe.
Further, inclinometer pipe is managed using φ 70PVC in step 1, and every section of deviational survey pipe range 3m installs 3 outside every inclinometer pipe Individual survey ring, spacing 1m, most external surveys end 0.5m of the ring away from inclinometer pipe.
Further, the installation of inclinometer pipe bottom includes in step 1:First, by inclinometer pipe bottom and the bottom of inclinometer pipe Coating bridging agent, then, by inclinometer pipe bottom the bottom of inclinometer pipe is fixedly mounted on, finally, with adhesive tape or sealing strip by deviational survey The position seals that ttom of pipe lid is connected with deviational survey bottom of the tube are processed.
Further, step 1 also includes the step being fixed on Grouting Pipe on inclinometer pipe.
Further, the step of emptying the water in hole, rubble impurity is also included in step 2.
Further, the step of boring grout outlet is also included in step 2, the grout outlet is located at bottom hole portion to hole body middle part, The spacing of the grout outlet is 20-25cm.
The setting of grout outlet is beneficial to the injection of cement mortar and the discharge of gas.
Further, in step 2 measured hole include carry slidingtype micrometer detecting head inclinometer pipe measured hole and Carry the measured hole of the inclinometer pipe of slidingtype sedimentometer detecting head.
Further, the step of aperture insertion exhaustor is additionally included in step 3, the insertion depth of exhaustor is apart from aperture 50-80cm。
Further, cement injection adopts UB3.0 type slurry pumps in step 4.
The connection of Grouting Pipe and slurry pump is checked before injection cement mortar, it is ensured that normal work, it is to avoid cause first slip casting to solidify, And grouting behind shaft or drift lining is not entered, grouting pressure " after first little greatly " should select cement of good performance during slip casting, should not there is lump, in case Block the slip casting mouth of pipe, cement mortar should not it is too dilute also should not be too thick, should be as far as possible thick on the premise of injection is guaranteed, when in exhaustor Slip casting when flowing out thick cement grout is finished, and shuts Grouting Pipe and exhaustor is treated by force.
Further, adjacent two inclinometer pipes are fixedly connected by deviational survey pipe joint, and deviational survey pipe joint includes convex positioning Labelling, the end of inclinometer pipe includes recessed telltale mark, and convex telltale mark is matched with recessed telltale mark.
Convex telltale mark and recessed specifically labelled it is equipped with, it is ensured that survey that ring does not misplace and guide groove is pretty good in installation process Position.
Further, the step of sealing aperture with Anchor Agent is also included in step 3, meanwhile, in order to prevent foreign body from falling into survey Inclined tube, is filled in pipe with iron wire looping geotextiles.
The present invention is not limited to above-mentioned embodiment, in the case of the flesh and blood without departing substantially from the present invention, this area skill Any deformation that art personnel are contemplated that, improvement, replacement each fall within protection scope of the present invention.

Claims (10)

1. a kind of displacement measurement method in tunnel inside face country rock, the measuring method is included using slidingtype micrometer Measure face inside length travel and measure the settling amount inside face using slidingtype sedimentometer, it is characterised in that bag Include following steps:
Step 1:Measure and prepare outside front hole, including prepare inclinometer pipe, survey ring is fixed on inclinometer pipe, visits slidingtype micrometer What what gauge head or slidingtype sedimentometer detecting head can be moved be fixed on inside inclinometer pipe, between inclinometer pipe be fixedly connected, deviational survey The installation of ttom of pipe lid and preparation Grouting Pipe;
Step 2:Measured hole is bored, is drilled using RPD -75SL-H2 multifunctional hole-drilling machines;
Step 3:Inclinometer pipe is installed in the hole that step 2 is bored, the diameter of inclinometer pipe is less than the diameter for drilling;
Step:4:Cement mortar will be injected between the gap of inclinometer pipe and measured hole, make survey ring be combined into one with stratum;
Step 5:Face inside length travel is measured using slidingtype micrometer, using slidingtype sedimentometer area is measured Settling amount inside face.
2. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 1 Middle inclinometer pipe is managed using φ 70PVC, every section of deviational survey pipe range 3m, and 3 survey rings are installed outside every inclinometer pipe, and spacing 1m, most external is surveyed End 0.5m of the ring away from inclinometer pipe.
3. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 1 The installation of middle inclinometer pipe bottom includes:First, the bottom of inclinometer pipe bottom and inclinometer pipe is coated into bridging agent, then, by deviational survey Ttom of pipe lid is fixedly mounted on the bottom of inclinometer pipe, finally, is connected inclinometer pipe bottom with deviational survey bottom of the tube with adhesive tape or sealing strip Position seals process.
4. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 1 Also include the step being fixed on Grouting Pipe on inclinometer pipe.
5. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 2 In also include the step of emptying the water in hole, rubble impurity.
6. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 2 In also include the step of boring grout outlet, the grout outlet is located at bottom hole portion to hole body middle part, and the spacing of the grout outlet is 20- 25cm。
7. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 3 In be additionally included in aperture insertion exhaustor the step of, the insertion depth of exhaustor is apart from aperture 50-80cm.
8. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 4 Middle cement injection adopts UB3.0 type slurry pumps.
9. the displacement measurement method in tunnel according to claim 1 inside face country rock, it is characterised in that step 2 Middle measured hole includes the measured hole of the inclinometer pipe for carrying slidingtype micrometer detecting head and carries the detection of slidingtype sedimentometer The measured hole of the inclinometer pipe of head.
10. the displacement measurement method in tunnel according to claim 2 inside face country rock, it is characterised in that adjacent Two inclinometer pipes are fixedly connected by deviational survey pipe joint, and deviational survey pipe joint includes convex telltale mark, and the end of inclinometer pipe includes There is recessed telltale mark, convex telltale mark is matched with recessed telltale mark.
CN201611189203.5A 2016-12-21 2016-12-21 Displacement measuring method for the inner part of enclosing rock for tunnel inner face CN106595548A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107941671A (en) * 2017-11-10 2018-04-20 石家庄铁道大学 Hydrous fluids crack rock tunnel-liner distribution of water pressure test simulation method
CN108052754A (en) * 2017-12-20 2018-05-18 石家庄铁道大学 The analysis method and terminal device of tunnel-liner mechanical response
CN109765097A (en) * 2018-12-21 2019-05-17 中铁三局集团有限公司 A kind of tunnel surrounding rapid classification method based on RPD drilling machine

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JPH04210714A (en) * 1990-12-10 1992-07-31 Hitachi Cable Ltd Abnormal deviation detector for long wiring element
CN102787616A (en) * 2012-07-11 2012-11-21 中国建筑第六工程局有限公司 Burying method of inclination measuring pipes in soil body
CN102937439A (en) * 2012-11-14 2013-02-20 江苏省交通科学研究院股份有限公司 Subway interval tunnel settlement observation method and device
CN103485320A (en) * 2013-09-26 2014-01-01 河海大学 U-shaped inclinometer and mounting and embedding method thereof
CN105606070A (en) * 2016-03-07 2016-05-25 三峡大学 Device and method for testing vertical and horizontal deformation of building

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1745241A1 (en) * 1990-01-04 1992-07-07 Всесоюзный Научно-Исследовательский Институт Глазных Болезней Method for treatment of glaucoma
JPH04210714A (en) * 1990-12-10 1992-07-31 Hitachi Cable Ltd Abnormal deviation detector for long wiring element
CN102787616A (en) * 2012-07-11 2012-11-21 中国建筑第六工程局有限公司 Burying method of inclination measuring pipes in soil body
CN102937439A (en) * 2012-11-14 2013-02-20 江苏省交通科学研究院股份有限公司 Subway interval tunnel settlement observation method and device
CN103485320A (en) * 2013-09-26 2014-01-01 河海大学 U-shaped inclinometer and mounting and embedding method thereof
CN105606070A (en) * 2016-03-07 2016-05-25 三峡大学 Device and method for testing vertical and horizontal deformation of building

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107941671A (en) * 2017-11-10 2018-04-20 石家庄铁道大学 Hydrous fluids crack rock tunnel-liner distribution of water pressure test simulation method
CN107941671B (en) * 2017-11-10 2020-08-11 石家庄铁道大学 Water-rich region fractured rock mass tunnel lining water pressure distribution test simulation method
CN108052754A (en) * 2017-12-20 2018-05-18 石家庄铁道大学 The analysis method and terminal device of tunnel-liner mechanical response
CN108052754B (en) * 2017-12-20 2021-02-09 石家庄铁道大学 Analysis method of mechanical response of tunnel lining and terminal equipment
CN109765097A (en) * 2018-12-21 2019-05-17 中铁三局集团有限公司 A kind of tunnel surrounding rapid classification method based on RPD drilling machine

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