CN108716946A - Under a kind of complex environment in the soil body at different depth blasting vibration monitoring device - Google Patents
Under a kind of complex environment in the soil body at different depth blasting vibration monitoring device Download PDFInfo
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- CN108716946A CN108716946A CN201810545372.0A CN201810545372A CN108716946A CN 108716946 A CN108716946 A CN 108716946A CN 201810545372 A CN201810545372 A CN 201810545372A CN 108716946 A CN108716946 A CN 108716946A
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- hollow out
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/12—Measuring characteristics of vibrations in solids by using direct conduction to the detector of longitudinal or not specified vibrations
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Abstract
The invention belongs to technical field of tunnel construction, and in particular under a kind of complex environment in the soil body at different depth blasting vibration monitoring device, agent structure includes：Substrate, hollow out steel pipe, sensor fixed bin, compass, air level, vibrating sensor, steel plate combination component, perpendicular type steel disc, reserving hole, screw, threaded post, data line and vibration signal receiver, the substrate of slab construction is located at earth's surface top, its upper side is fixedly installed air level and compass, the downside of substrate is provided with N sections of hollow out steel pipes, the sensor fixed bin of cube structure is provided between the upper and lower end parts of adjacent hollow out steel pipe, it is loaded with vibrating sensor in sensor fixed bin, vibrating sensor is by being respectively set the steel plate combination component of downside thereon and hollow out fastener for connection, the device applicability is good, it is efficient, it is simple in structure, it is easy to operate, it is of low cost, application environment is friendly, wide market.
Description
Technical field：
The invention belongs to technical field of tunnel construction, and in particular to explosion at different depth in the soil body under a kind of complex environment
The monitoring device of vibration, in the construction of method of tunnel drilling and blasting method, which can be used in monitoring a plurality of cross pipe-line of tunnel upper point
Blasting vibration size when cloth at each pipeline.
Background technology：
Since city rapidly develops and urban population sharply increases, Urban Traffic Jam Based getting worse.Single
Traffic above-ground construction is difficult to alleviate urban traffic pressure, and therefore, each big city accelerates the construction of city tunnel.But Urban Underground city
Political affairs pipeline is intricate, and tunnel is built in city will inevitably wear down all multi-lines.For lithostratigraphy, constructing tunnel side
Method is mainly drilling and blasting method, and the vibrated conference of Tunnel Blasting causes municipal pipeline to damage or destroy.In order to reduce the danger of blasting vibration
Evil needs, by acquiring vibration signal, therefrom to obtain the propagation law of blasting vibration, and then assess its shadow to municipal pipeline
It rings.Blast Vibration Monitoring is the basis of analysis of vibration signal, and it is before carrying out signal analysis accurately to collect blasting vibration signal
It carries.The case where for tunnel upper a plurality of cross pipe-line distribution, invention is a kind of can to monitor the blasting vibration at a plurality of pipeline
Instrument is the basis for carrying out blasting vibration propagation law.
There are two types of common pipeline monitoring methods：One, the placement sensor at earth's surface right over the pipeline.But Tunnel Blasting is produced
Raw vibration propagation law in the soil body is complex, the size of simple slave earth's surface monitoring blasting vibration, for estimating the soil body
The method of magnitude of vibrations at internal pipeline can only rule of thumb judge although simply, directly, accuracy can not ensure.
Two, it is directly placed on pipeline.But municipal pipeline, which is generally not allowed, to be excavated, and all multi-line old ages are in bad repair, once it opens
Overburden layer in digging, disturbance or damage pipeline, consequence are extremely serious.It is drilled in urban district by many-sided control such as environmental protection,
In order to reduce the quantity of drilling as far as possible, realizes single hole multiple spot monitoring, soil is accurately acquired under a kind of complex environment of present invention offer
The device of blasting vibration at internal portion different depth.
Invention content：
It is an object of the invention to overcome defect and deficiency of the existing technology, seeks design and a kind of complex environment is provided
In the lower soil body at different depth blasting vibration monitoring device, the device based on existing vibrating sensor and signal picker come
Prepare, can realize single hole multiple spot monitoring, reduce drilling hole amount, and the invention device also have it is simple, be easily assembled to and
Cheap advantage.
To achieve the goals above, blasting vibration at different depth in the soil body under a kind of complex environment of the present invention
The agent structure of monitoring device includes：Substrate, hollow out steel pipe, sensor fixed bin, compass, air level, vibrating sensor, steel
Plate combined member, perpendicular type steel disc, reserving hole, screw, threaded post, data line and vibration signal receiver, tablet knot
The substrate of structure is located at earth's surface top, and upper side is fixedly installed air level and compass, to determine direction and levelness, uses
To adjust and confirm the z of vibration signal receiver to perpendicular to ground, y is oriented parallel to tunnel trend, and the directions x are perpendicular to tunnel
It moves towards in road；The downside of substrate is provided with N sections of hollow out steel pipes, and wherein N is the integer more than 2, the end setting of hollow out steel pipe
There is the internal thread structure connected, hollow out steel pipe is extending vertically into earth's surface lower part, adjacent hollow out by the way of end to end
It is provided with the sensor fixed bin of cube structure between the upper and lower end parts of steel pipe, vibrating sensing is loaded in sensor fixed bin
Device, sensor fixed bin avoid sensor card in rock to fixed and protection vibrating sensor, foot of hole rock mass out-of-flatness
In；Vibrating sensor is by being respectively set the steel plate combination component of downside thereon and hollow out fastener for connection, steel plate combination structure
Part can support vibrating sensor and protect the integrality of its structure, make vibrating sensor ontology that connected structure be avoided to destroy it
Integrality is provided with reserving hole on steel plate combination component, and the lower end of data line is fixed across reserving hole with sensor
Vibrating sensor communication connection in box, the upper end of data line are connect with the vibration signal receiver positioned at earth's surface top,
To the data transmission that is collected into vibrating sensor to vibration signal receiver.
Further, steel plate combination component of the present invention is one piece of horizontal positioned intermediate plate and two pieces of vertical placements
The I-shaped structure that connects and composes of side plate integral type, and the lateral surface middle of plate is provided with threaded post among it, the spiral shell
Line column can be threadedly coupled with the internal thread structure of hollow out steel pipe, the left and right edge of steel plate combination component intermediate plate and side plate
One group is respectively arranged at lower edge to connect the screw hole of perpendicular type steel disc, the upper and lower sides of vibrating sensor are placed with steel plate
Combined member, two steel plate combination components are placed by opposed type and the steel plate combination component relative to top of lower part rotates 90
Split is spent to form the closed square cavity in middle part, vibrating sensor is wrapped in intermediate square cavity, L-type knot
Structure perpendicular type steel disc is placed on two steel plate combination components the seam crossing for carrying Screw hole structure, is provided on perpendicular type steel disc and steel plate
The screw hole that screwhole position on combined member matches, and above-mentioned screw hole with the screw that screw hole coordinates by being fixed company
It connects.
Further, the material selection aluminium sheet of substrate of the present invention.
Further, the specification of this implementation hollow out steel pipe is as follows：A diameter of 6cm, hollow out steel pipe upper end end
The height of internal thread structure be 1cm, length range 1-3m.
In the use of the present invention, specifically used mode carries out in accordance with the following steps：
S1, right over tunnel center line, the places 5-10m progress drilling operation, the diameter of drilling are not less than on front side of the pipeline
The depth of 20cm, drilling are identical as pipeline bottom depth, then to the hole clean spare；
S2, the drilling in S1 is cleaned, and compacting leveling is carried out to foot of hole, and retaining wall set is set in the borehole
Pipe；
S3, it two steel plate combination components is attached by perpendicular type steel disc by screw is combined into sensor fixed bin,
To be arranged vibrating sensor in sensor fixed bin；
S4, more hollow out steel pipes are attached by bolt and sensor, hollow out steel pipe the engraving with the top of connection
Until the upper end of empty steel pipe can extend to earth's surface top；
S5, the hollow out steel pipe that the threaded post of substrate is screwed into the top top screw thread in, then according to substrate upper side
Area levelling bubble ensures that the directions y of vibration signal receiver are walked with tunnel to ensure that vibration signal receiver is horizontal, according to compass
To level；
S6, protection casing and between backfill filling and the identical soil layer of original place layer, backfilling process between hollow out steel pipe
In, protection casing is taken out while clogging filler, and be suitably compacted to backfill, ensures that level is soaked in backfilling process
Gentle compass direction is constant.
Compared with prior art, the present invention what is obtained has the beneficial effect that：
It can directly be collected near pipeline at the stratum composition and buried depth and pipeline of vibrating sensor present position
Blasting vibration size, accuracy is significantly larger than monitors demolition team's vibration to estimate vibration inside soil body pipeline by earth's surface
Method, and realize single hole multimetering, greatly reduce workload.The device applicability is good, efficient, simple in structure, operation side
Just, of low cost, application environment is friendly, wide market.
Description of the drawings：
Fig. 1 is vibration monitoring device installation site principle schematic of the present invention.
Fig. 2 is vibration monitoring device structural schematic diagram of the present invention.
Fig. 3 is steel plate combination component schematic diagram of the present invention.
Fig. 4 is the agent structure principle schematic of substrate of the present invention.
Fig. 5 is the agent structure principle schematic of perpendicular type steel disc of the present invention.
Specific implementation mode：
The invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment 1
The agent structure of the Blast Vibration Monitoring device of arbitrary depth includes in the acquisition soil body that the present embodiment is related to：Base
Plate 1, hollow out steel pipe 2, sensor fixed bin 3, compass 4, air level 5, vibrating sensor 6, steel plate combination component 7, perpendicular type
Steel disc 8, reserving hole 9, screw 10, threaded post 11, data line 12 and vibration signal receiver 13, the substrate of slab construction
1 is located at earth's surface top, and upper side is fixedly installed air level 5 and compass 4, to determine direction and levelness, to adjust
For z that is whole and confirming vibration signal receiver 13 to perpendicular to ground, y is oriented parallel to tunnel trend, and x is walked in direction perpendicular to tunnel
To；The downside of substrate 1 is provided with N sections of hollow out steel pipes 2, and wherein N is the integer more than 2, the end setting of hollow out steel pipe 2
There is the internal thread structure connected, hollow out steel pipe 2 is extending vertically into earth's surface lower part, adjacent hollow out by the way of end to end
It is provided with the sensor fixed bin 3 of cube structure between the upper and lower end parts of steel pipe 2, vibration is loaded in sensor fixed bin 3 and is passed
Sensor 6, sensor fixed bin 3 avoid sensor card to fixed and protection vibrating sensor 6, foot of hole rock mass out-of-flatness
In rock；Vibrating sensor 6 is connect by the way that the steel plate combination component 7 of downside thereon is respectively set with hollow out steel pipe 2, steel
Plate combined member 7 can support vibrating sensor 6 and protect the integrality of its structure, and 6 ontology of vibrating sensor is made to avoid being connected
Binding structure destroys its integrality, and reserving hole 9 is provided on steel plate combination component 7, and the lower end of data line 12, which passes through, to be reserved
Hole 9 is with the communication connection of vibrating sensor 6 in sensor fixed bin 3, the upper end of data line 12 and positioned at earth's surface top
Vibration signal receiver 13 connect, to the data transmission that is collected into vibrating sensor 6 to vibration signal receiver 13.
Further, the steel plate combination component 7 described in the present embodiment is that one piece of horizontal positioned intermediate plate and two pieces are vertical
The I-shaped structure that the side plate integral type of placement connects and composes, and the lateral surface middle of plate is provided with threaded post among it
11, which can be threadedly coupled with the internal thread structure of hollow out steel pipe 2, the left and right side of 7 intermediate plate of steel plate combination component
Be respectively arranged with one group along place and the lower edge of side plate to connect the screw hole of perpendicular type steel disc 8, vibrating sensor 6 it is upper and lower
Side is placed with steel plate combination component 7, and two steel plate combination components 7 are placed by opposed type and the steel relative to top of lower part
Plate combined member 7 is rotated by 90 ° split to form the closed square cavity in middle part, and vibrating sensor 6 is wrapped in centre
In square cavity, L-type structure perpendicular type steel disc 8 is placed on two steel plate combination components 7 seam crossing for carrying Screw hole structure, right angle
Be provided with the screw hole to match with the screwhole position on steel plate combination component 7 on shaped steel piece 8, and above-mentioned screw hole by with screw hole
The screw 10 of cooperation is fixedly connected.
Further, the material selection aluminium sheet of the substrate 1 described in the present embodiment.
Further, the specification of this implementation hollow out steel pipe 2 is as follows：A diameter of 6cm, 2 upper end of hollow out steel pipe
The height of the internal thread structure at end is 1cm, length range 1-3m.
When the present embodiment is in use, specifically used mode carries out in accordance with the following steps：
S1, right over tunnel center line, the places 5-10m progress drilling operation, the diameter of drilling are not less than on front side of the pipeline
The depth of 20cm, drilling are identical as pipeline bottom depth, then to the hole clean spare；
S2, the drilling in S1 is cleaned, and compacting leveling is carried out to foot of hole, and retaining wall set is set in the borehole
Pipe；
S3, it two steel plate combination components 7 are attached by screw 10 by perpendicular type steel disc 8 are combined into sensor and fix
Box 3, to be arranged vibrating sensor 6 in sensor fixed bin 3；
S4, more hollow out steel pipes 2 are attached by bolt and sensor, the hollow out steel pipe 2 of connection is with the top
Until the upper end of hollow out steel pipe 2 can extend to earth's surface top；
S5, the hollow out steel pipe 2 that the threaded post of substrate 1 is screwed into the top top screw thread in, then according to the top of substrate 1
Side air level 5 ensures the directions y of vibration signal receiver 13 according to compass 4 to ensure that vibration signal receiver 13 is horizontal
Move towards horizontal with tunnel；
S6, protection casing and between backfill filling and the identical soil layer of original place layer, backfilling process between hollow out steel pipe 2
In, protection casing is taken out while clogging filler, and be suitably compacted to backfill, ensures air level 5 in backfilling process
Horizontal and 4 direction of compass is constant.
Claims (5)
1. under a kind of complex environment in the soil body at different depth blasting vibration monitoring device, it is characterised in that its agent structure packet
It includes：Substrate, hollow out steel pipe, sensor fixed bin, compass, air level, vibrating sensor, steel plate combination component, right angle shaped steel
The substrate of piece, reserving hole, screw, threaded post, data line and vibration signal receiver, slab construction is located in earth's surface
Portion, upper side are fixedly installed air level and compass, to determine direction and levelness, to adjust and confirm vibration letter
For the z of number receiver to perpendicular to ground, y is oriented parallel to tunnel trend, and the directions x are moved towards perpendicular to tunnel；The downside of substrate
N sections of hollow out steel pipes are provided with, wherein N is the integer more than 2, and the end of hollow out steel pipe is provided with the internal thread knot connected
Structure, hollow out steel pipe are extending vertically into earth's surface lower part by the way of end to end, are set between the upper and lower end parts of adjacent hollow out steel pipe
It is equipped with the sensor fixed bin of cube structure, vibrating sensor is loaded in sensor fixed bin, sensor fixed bin is to solid
Fixed and protection vibrating sensor, foot of hole rock mass out-of-flatness avoid sensor card in rock；Vibrating sensor passes through difference
The steel plate combination component and hollow out fastener for connection, steel plate combination component for being arranged on downside can support vibrating sensor simultaneously
The integrality for protecting its structure makes vibrating sensor ontology avoid being connected structure and destroy its integrality, on steel plate combination component
It is provided with reserving hole, the lower end of data line passes through reserving hole and the vibrating sensor communication link in sensor fixed bin
It connects, the upper end of data line is connect with the vibration signal receiver positioned at earth's surface top, vibrating sensor to be collected into
Data transmission to vibration signal receiver.
2. under a kind of complex environment according to claim 1 in the soil body at different depth blasting vibration monitoring device,
It is characterized in that steel plate combination component is that one piece of horizontal positioned intermediate plate and two pieces of side plate integral types placed vertically connect and compose
I-shaped structure, and the lateral surface middle of plate is provided with threaded post among it, which can be with hollow out steel pipe
Internal thread structure is threadedly coupled, and one is respectively arranged at the left and right edge of steel plate combination component intermediate plate and the lower edge of side plate
For group to connect the screw hole of perpendicular type steel disc, the upper and lower sides of vibrating sensor are placed with steel plate combination component, two steel plate combinations
Component by opposed type place and lower part the steel plate combination component relative to top be rotated by 90 ° split formed middle part it is close
Vibrating sensor is wrapped in intermediate square cavity by the square cavity closed, and L-type structure perpendicular type steel disc is placed in two
The seam crossing of Screw hole structure is carried on steel plate combination component, is provided with and the screw hole position on steel plate combination component on perpendicular type steel disc
The screw hole to match is set, and above-mentioned screw hole with the screw that screw hole coordinates by being fixedly connected.
3. under a kind of complex environment according to claim 1 in the soil body at different depth blasting vibration monitoring device,
It is characterized in that the material selection aluminium sheet of substrate.
4. under a kind of complex environment according to claim 1 in the soil body at different depth blasting vibration monitoring device,
It is characterized in that the specification of hollow out steel pipe is as follows：The height of a diameter of 6cm, the internal thread structure at hollow out steel pipe upper end end is
1cm, length range 1-3m.
5. explosion is shaken at different depth in the soil body under a kind of complex environment according to any claim in claim 1-4
Dynamic monitoring device, when in use, specifically used mode carries out feature in accordance with the following steps：
S1, right over tunnel center line, the places 5-10m progress drilling operation, the diameter of drilling are not less than on front side of the pipeline
The depth of 20cm, drilling are identical as pipeline bottom depth, then to the hole clean spare；
S2, the drilling in S1 is cleaned, and compacting leveling is carried out to foot of hole, and protection casing is set in the borehole；
S3, it two steel plate combination components is attached by perpendicular type steel disc by screw is combined into sensor fixed bin, to
Vibrating sensor is arranged in sensor fixed bin；
S4, more hollow out steel pipes are attached by bolt and sensor, the hollow out steel pipe of connection is with the hollow out steel of the top
Until the upper end of pipe can extend to earth's surface top；
S5, the hollow out steel pipe that the threaded post of substrate is screwed into the top top screw thread in, then according to side water above substrate
Quasi- bubble ensures that water is moved towards in the directions y of vibration signal receiver with tunnel to ensure that vibration signal receiver is horizontal, according to compass
It is flat；
S6, protection casing and between backfill filling and the identical soil layer of original place layer between hollow out steel pipe, in backfilling process, fill out
Take out protection casing while filling in filler, and suitably backfill be compacted, ensure in backfilling process air level level and
Compass direction is constant.
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| CN201810545372.0A CN108716946A (en) | 2018-05-30 | 2018-05-30 | Under a kind of complex environment in the soil body at different depth blasting vibration monitoring device |
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| CN201810545372.0A CN108716946A (en) | 2018-05-30 | 2018-05-30 | Under a kind of complex environment in the soil body at different depth blasting vibration monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608794A (en) * | 2019-10-09 | 2019-12-24 | 昆明理工大学 | Vibration pickup instrument protection device in underground cemented filling body |
| CN110888156A (en) * | 2019-11-19 | 2020-03-17 | 中航勘察设计研究院有限公司 | Stratum vertical vibration response testing method |
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Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |