CN102564251B - Single-hole continuous initiation method of electronic detonators in tunnel - Google Patents
Single-hole continuous initiation method of electronic detonators in tunnel Download PDFInfo
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- CN102564251B CN102564251B CN 201110379098 CN201110379098A CN102564251B CN 102564251 B CN102564251 B CN 102564251B CN 201110379098 CN201110379098 CN 201110379098 CN 201110379098 A CN201110379098 A CN 201110379098A CN 102564251 B CN102564251 B CN 102564251B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 10
- 238000005422 blasting Methods 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 239000011435 rock Substances 0.000 claims abstract description 5
- 239000002360 explosive Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 230000006855 networking Effects 0.000 description 6
- 238000004880 explosion Methods 0.000 description 2
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Abstract
The invention relates to a single-hole continuous initiation method of electronic detonators in a tunnel, which relates to the field of drilling and blasting construction of the tunnel and underground engineering. With the adoption of the single-hole continuous initiation method, the problems of blasting vibration, shock wave, flying stones, high noise and large harms to the stability of tunnel surrounding rock, nearby buildings and people by the blasting method in prior arts are solved. The method comprises the following steps: numbering blast holes of a tunnel face; loading the electronic detonators in the blast holes; and setting a delay time according to the level of the surrounding rock. The vibration generated by blasting is reduced by 60% to 80% when compared with a conventional method, and the single-hole continuous initiation method has wide application prospect in blasting construction of city tunnel and underground engineering.
Description
Technical field
Tunnel and underground engineering construction of explosion.
Technical background
At present, the Tunnel Blasting method of ignition is for adopting Nonel detonator to carry out Millisecond Controlled Blasting, because Nonel detonator just is provided with the defer time of detonator when dispatching from the factory, and type is few, a plurality of boreholes detonate simultaneously when causing the Tunnel Blasting big gun, the blasting vibration, shock wave, slungshot, the noise that produce like this are large, and the harm that the stability of tunnel surrounding, near building and people are caused is large.
Summary of the invention
Technical problem to be solved by this invention is, blasting vibration, shock wave, slungshot, noise that existing Tunnel Blasting big gun produces are large, the large problem of harm that the stability of tunnel surrounding, near building and people are caused.
The present invention solves the technical scheme of its technical problem:
Single-hole continuous initiation method of electronic detonators in tunnel, the method may further comprise the steps:
Snubber is divided into three grades: first order snubber, second level snubber, third level snubber, six of every one-levels; Every grade of snubber is divided into the borehole that two groups of quantity equate, arranges with tunnel center line axial symmetry;
N row limit section avalanche eye, every row limit section avalanche eye are divided into the borehole that two groups of quantity equate, arrange with tunnel center line axial symmetry;
The base plate eye is arranged with tunnel center line axial symmetry;
M row top avalanche eye be divided into from bottom to top first row top avalanche eye, second row top avalanche eye ..., M row top avalanche eye; Every row top avalanche eye is arranged with tunnel center line axial symmetry;
Periphery hole is arranged with tunnel center line axial symmetry;
Give the numbering of the borehole in the step 1:
At the sequentially odd number that is numbered of tunnel center line left side borehole, in the sequentially even number that is numbered of center line right side, tunnel borehole.
The numbering of every grade of snubber: take nethermost first snubber of tunnel center line left side first row as the initial odd-numbered eye of No. 1 snubber of the first order, take nethermost first snubber of center line right side, tunnel first row as the initial even-numbered eye of No. 2 snubbers of the first order,, the like to No. 6 snubbers of the first order; Second level snubber is identical with first order snubber method for numbering serial to the numbering of third level snubber.
Being numbered of every row limit section's avalanche eye: take nethermost first limit section avalanche eye of tunnel center line left side first row as the initial odd-numbered eye of No. 1 limit section of first row avalanche eye; The initial even-numbered eye of No. 2 limit sections of first row that are numbered avalanche eye with the nethermost limit of first row, center line right side, tunnel section avalanche eye; The numbering of avalanche eye to the N row limit section of secondary series limit section avalanche eye is identical with first row limit section avalanche eye method for numbering serial.
The numbering of tunnel floor eye: take first base plate eye in tunnel center line left side as No. 1 initial odd-numbered eye of base plate eye; Take first base plate eye on center line right side, tunnel as No. 2 initial even-numbered eyes of base plate eye.
Being numbered of every row top avalanche eye: avalanche eye in first row top is take first top avalanche eye of tunnel center line left side as the initial odd-numbered eye of No. 1 top of first row avalanche eye; First top avalanche eye of center line right side, tunnel is the initial even-numbered eye of No. 2 top of first row avalanche eye; The numbering of second row top avalanche eye to the M row top avalanche eye is identical with first row top avalanche eye method for numbering serial.
The numbering of tunnel perimeter eye: take first periphery hole in tunnel center line left side as No. 1 initial odd-numbered eye of periphery hole; Take first periphery hole on center line right side, tunnel as No. 2 initial even-numbered eyes of periphery hole.
The detonator of step 2 adopts electric detonator, the delay time of electric detonator is set, when tunnel surrounding is I level or II level according to Grades of Surrounding Rock.
The delay time of the electric detonator in No. 1 snubber of the first order is Oms, the delay time of the electric detonator in No. 2 snubbers of the first order is 2ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 4ms, the delay time of the electric detonator in other numbers of first order snubber increases 2ms in order successively.
The delay time of the electric detonator in No. 1 snubber in the second level is that the delay time of electric detonator in the borehole that detonates at last of first order snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers in the second level is that the delay time of the electric detonator in No. 1 snubber in the second level adds 3ms, the delay time of the electric detonator in No. 3 snubbers in the second level is that the delay time of the electric detonator in No. 2 snubbers in the second level adds 3ms, the delay time of the electric detonator in other numbers of second level snubber increases 3ms in order successively.
The delay time of the electric detonator in No. 1 snubber of the third level is that the delay time of electric detonator in the borehole that detonates at last of second level snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers of the third level is that the delay time of the electric detonator in No. 1 snubber of the third level adds 4ms, the delay time of the electric detonator in No. 3 snubbers of the third level is that the delay time of the electric detonator in No. 2 snubbers of the third level adds 4ms, the delay time of the electric detonator in other numbers of third level snubber increases 4ms in order successively.
The delay time of No. 1 limit section of first row avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of third level snubber adds 30ms, the delay time of No. 2 limit sections of first row avalanche intraocular electric detonator is that the delay time of No. 1 limit section of first row avalanche intraocular electric detonator adds 5ms, then, increase successively in order 5ms; The delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of first row limit section avalanche eye adds 30ms, the delay time of No. 2 limit sections of secondary series avalanche intraocular electric detonator is that the delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator adds 5ms, increases successively in order 5ms; The delay time of the limit section avalanche intraocular electric detonator of other row is identical with the method to set up of the delay time of first row limit section avalanche intraocular electric detonator.
No. 1 base plate intraocular electric detonator delay time adds 30ms for the limit section avalanche intraocular electric detonator delay time that detonates at last, then the delay time that No. 2 base plate intraocular electric detonator delay times are No. 2 base plate intraocular electric detonators adds 5ms, increases successively in order 5ms.
No. 1 top avalanche of first row intraocular electric detonator delay time adds 30ms for the base plate intraocular electric detonator delay time that detonates at last, No. 2 top avalanches of first row intraocular electric detonator delay time is that No. 1 top avalanche of first row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; No. 1 top avalanche of second row intraocular electric detonator delay time is that the interior electric detonator delay time of borehole that avalanche eye in first row top detonates at last adds 30ms, No. 2 top avalanches of second row intraocular electric detonator delay time is that No. 1 top avalanche of second row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; The delay time of other rows' top avalanche intraocular electric detonator is identical with the method to set up of the delay time of first row top avalanche intraocular electric detonator.
The delay time of electric detonator is that the delay time of electric detonator in the borehole that detonates at last of top avalanche eye adds 30ms in No. 1 periphery hole, the electric detonator delay time is that the delay time of electric detonator adds 2ms in No. 1 periphery hole in No. 2 periphery holes, then, increase successively in order 2ms.
When tunnel surrounding is the III level:
The electric detonator time delay interval time is 3ms in the first order snubber; The electric detonator time delay interval time is 4ms in the snubber of the second level; The electric detonator time delay interval time is 5ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 6ms; The electric detonator time delay interval time is 2ms in the periphery hole.The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level.The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level.
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row limit section avalanche eye.
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 40ms.
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 40ms with the base plate intraocular electric detonator delay time that detonates at last.No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row top avalanche eye.
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 40ms in No. 1 periphery hole.
When tunnel surrounding is IV level or V level:
The electric detonator time delay interval time is 4ms in the first order snubber; The electric detonator time delay interval time is 5ms in the snubber of the second level; The electric detonator time delay interval time is 6ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 7ms; The electric detonator time delay interval time is 2ms in the periphery hole.The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level.The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level.
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row limit section avalanche eye.
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 50ms.
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 50ms with the base plate intraocular electric detonator delay time that detonates at last.No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row top avalanche eye.
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 50ms in No. 1 periphery hole.
The present invention compares the beneficial effect that has with prior art:
Adopt single-hole continuous initiation method of electronic detonators in tunnel, the Tunnel Blasting vibration reduces more than 60~80%, Blasting shock wave, slungshot, reducing noise are to minimum level simultaneously, can guarantee construction tunnel and near buildings or structures, people's safety, the Tunnel Blasting construction speed is fast, the construction totle drilling cost significantly reduces, and is with a wide range of applications in the blast working of metropolitan district tunnel and underground engineering.
Description of drawings
Borehole layout drawing on Fig. 1 tunnel tunnel face.
The specific embodiment
Embodiment one
Single-hole continuous initiation method of electronic detonators in tunnel, the method may further comprise the steps:
Snubber is divided into three grades: first order snubber, second level snubber, third level snubber, six of every one-levels; Every grade of snubber is divided into the borehole that two groups of quantity equate, arranges with tunnel center line axial symmetry;
N row limit section avalanche eye, every row limit section avalanche eye are divided into the borehole that two groups of quantity equate, arrange with tunnel center line axial symmetry;
The base plate eye is arranged with tunnel center line axial symmetry;
M row top avalanche eye be divided into from bottom to top first row top avalanche eye, second row top avalanche eye ..., M row top avalanche eye; Every row top avalanche eye is arranged with tunnel center line axial symmetry;
Periphery hole is arranged with tunnel center line axial symmetry;
Give the numbering of the borehole in the step 1:
At the sequentially odd number that is numbered of tunnel center line left side borehole, in the sequentially even number that is numbered of center line right side, tunnel borehole.
The numbering of every grade of snubber: take nethermost first snubber of tunnel center line left side first row as the initial odd-numbered eye of No. 1 snubber of the first order, take nethermost first snubber of center line right side, tunnel first row as the initial even-numbered eye of No. 2 snubbers of the first order,, the like to No. 6 snubbers of the first order; Second level snubber is identical with first order snubber method for numbering serial to the numbering of third level snubber.
Being numbered of every row limit section's avalanche eye: take nethermost first limit section avalanche eye of tunnel center line left side first row as the initial odd-numbered eye of No. 1 limit section of first row avalanche eye; The initial even-numbered eye of No. 2 limit sections of first row that are numbered avalanche eye with the nethermost limit of first row, center line right side, tunnel section avalanche eye; The numbering of avalanche eye to the N row limit section of secondary series limit section avalanche eye is identical with first row limit section avalanche eye method for numbering serial.
The numbering of tunnel floor eye: take first base plate eye in tunnel center line left side as No. 1 initial odd-numbered eye of base plate eye; Take first base plate eye on center line right side, tunnel as No. 2 initial even-numbered eyes of base plate eye.
Being numbered of every row top avalanche eye: avalanche eye in first row top is take first top avalanche eye of tunnel center line left side as the initial odd-numbered eye of No. 1 top of first row avalanche eye; First top avalanche eye of center line right side, tunnel is the initial even-numbered eye of No. 2 top of first row avalanche eye; The numbering of second row top avalanche eye to the M row top avalanche eye is identical with first row top avalanche eye method for numbering serial.
The numbering of tunnel perimeter eye: take first periphery hole in tunnel center line left side as No. 1 initial odd-numbered eye of periphery hole; Take first periphery hole on center line right side, tunnel as No. 2 initial even-numbered eyes of periphery hole.
The detonator of step 2 adopts electric detonator, the delay time of electric detonator is set, when tunnel surrounding is I level or II level according to Grades of Surrounding Rock.
The delay time of the electric detonator in No. 1 snubber of the first order is 0ms, the delay time of the electric detonator in No. 2 snubbers of the first order is 2ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 4ms, the delay time of the electric detonator in other numbers of first order snubber increases 2ms in order successively.The delay time of the electric detonator in No. 1 snubber in the second level is that the delay time of electric detonator in the borehole that detonates at last of first order snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers in the second level is that the delay time of the electric detonator in No. 1 snubber in the second level adds 3ms, the delay time of the electric detonator in No. 3 snubbers in the second level is that the delay time of the electric detonator in No. 2 snubbers in the second level adds 3ms, the delay time of the electric detonator in other numbers of second level snubber increases 3ms in order successively.The delay time of the electric detonator in No. 1 snubber of the third level is that the delay time of electric detonator in the borehole that detonates at last of second level snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers of the third level is that the delay time of the electric detonator in No. 1 snubber of the third level adds 4ms, the delay time of the electric detonator in No. 3 snubbers of the third level is that the delay time of the electric detonator in No. 2 snubbers of the third level adds 4ms, the delay time of the electric detonator in other numbers of third level snubber increases 4ms in order successively.
The delay time of No. 1 limit section of first row avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of third level snubber adds 30ms, the delay time of No. 2 limit sections of first row avalanche intraocular electric detonator is that the delay time of No. 1 limit section of first row avalanche intraocular electric detonator adds 5ms, then, increase successively in order 5ms; The delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of first row limit section avalanche eye adds 30ms, the delay time of No. 2 limit sections of secondary series avalanche intraocular electric detonator is that the delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator adds 5ms, increases successively in order 5ms; The delay time of the limit section avalanche intraocular electric detonator of other row is identical with the method to set up of the delay time of first row limit section avalanche intraocular electric detonator.
No. 1 base plate intraocular electric detonator delay time adds 30ms for the limit section avalanche intraocular electric detonator delay time that detonates at last, then the delay time that No. 2 base plate intraocular electric detonator delay times are No. 2 base plate intraocular electric detonators adds 5ms, increases successively in order 5ms.
No. 1 top avalanche of first row intraocular electric detonator delay time adds 30ms for the base plate intraocular electric detonator delay time that detonates at last, No. 2 top avalanches of first row intraocular electric detonator delay time is that No. 1 top avalanche of first row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; No. 1 top avalanche of second row intraocular electric detonator delay time is that the interior electric detonator delay time of borehole that avalanche eye in first row top detonates at last adds 30ms, No. 2 top avalanches of second row intraocular electric detonator delay time is that No. 1 top avalanche of second row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; The delay time of other rows' top avalanche intraocular electric detonator is identical with the method to set up of the delay time of first row top avalanche intraocular electric detonator.
The delay time of electric detonator is that the delay time of electric detonator in the borehole that detonates at last of top avalanche eye adds 30ms in No. 1 periphery hole, the electric detonator delay time is that the delay time of electric detonator adds 2ms in No. 1 periphery hole in No. 2 periphery holes, then, increase successively in order 2ms.
When tunnel surrounding is the III level:
The electric detonator time delay interval time is 3ms in the first order snubber; The electric detonator time delay interval time is 4ms in the snubber of the second level; The electric detonator time delay interval time is 5ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 6ms; The electric detonator time delay interval time is 2ms in the periphery hole.
The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level.
The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level.
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row limit section avalanche eye.
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 40ms.
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 40ms with the base plate intraocular electric detonator delay time that detonates at last.
No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row top avalanche eye.
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 40ms in No. 1 periphery hole.
When tunnel surrounding is IV level or V level:
The electric detonator time delay interval time is 4ms in the first order snubber; The electric detonator time delay interval time is 5ms in the snubber of the second level; The electric detonator time delay interval time is 6ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 7ms; The electric detonator time delay interval time is 2ms in the periphery hole.
The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level.
The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level.
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row limit section avalanche eye.
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 50ms.
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 50ms with the base plate intraocular electric detonator delay time that detonates at last.
No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row top avalanche eye.
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 50ms in No. 1 periphery hole.
Embodiment two
Single-hole continuous initiation method of electronic detonators in tunnel, the method may further comprise the steps:
Snubber is divided into three grades: first order snubber, second level snubber, third level snubber;
First order snubber: the borehole take the borehole of the nethermost borehole in tunnel center line left side as No. 1 snubber of the first order, take nethermost first snubber in center line right side, tunnel as No. 2 snubbers of the first order, in the middle of the tunnel center line left side as No. 3 snubbers of the first order, in the middle of the center line right side, tunnel is as No. 4 snubbers of the first order, take the uppermost borehole in tunnel center line left side as No. 5 snubbers of the first order, take the uppermost borehole in center line right side, tunnel as No. 6 snubbers of the first order.
Second level snubber: take the nethermost borehole in tunnel center line left side as the second level No. 1 snubber, take nethermost first borehole in center line right side, tunnel as the second level No. 2 snubbers, borehole in the middle of the tunnel center line left side as the second level No. 3 snubbers, borehole in the middle of the center line right side, tunnel as the second level No. 4 snubbers, take the uppermost borehole in tunnel center line left side as the second level No. 5 snubbers, take the uppermost borehole in center line right side, tunnel as the second level No. 6 snubbers.
Third level snubber: the borehole take the borehole of the nethermost borehole in tunnel center line left side as No. 1 snubber of the third level, take nethermost first borehole in center line right side, tunnel as No. 2 snubbers of the third level, in the middle of the tunnel center line left side as No. 3 snubbers of the third level, in the middle of the center line right side, tunnel is as No. 4 snubbers of the third level, take the uppermost borehole in tunnel center line left side as No. 5 snubbers of the third level, take the uppermost borehole in center line right side, tunnel as No. 6 snubbers of the third level.
First row limit section avalanche eye: take the nethermost borehole in tunnel center line left side as No. 1 limit section of first row avalanche eye, take nethermost first borehole in center line right side, tunnel as No. 2 limit sections of first row avalanche eye, the borehole middle take tunnel center line left side is as No. 3 limit sections of first row avalanche eye, the borehole middle take center line right side, tunnel is as No. 4 limit sections of first row avalanche eye, take the uppermost borehole in tunnel center line left side as No. 5 limit sections of first row avalanche eye, take the uppermost borehole in center line right side, tunnel as No. 6 limit sections of first row avalanche eye.
Secondary series limit section avalanche eye: take the nethermost borehole in tunnel center line left side as No. 1 limit section of secondary series avalanche eye, take nethermost first borehole in center line right side, tunnel as No. 2 limit sections of secondary series avalanche eye, the borehole middle take tunnel center line left side is as No. 3 limit sections of secondary series avalanche eye, the borehole middle take center line right side, tunnel is as No. 4 limit sections of secondary series avalanche eye, take the uppermost borehole in tunnel center line left side as No. 5 limit sections of secondary series avalanche eye, take the uppermost borehole in center line right side, tunnel as No. 6 limit sections of secondary series avalanche eye.
Tunnel floor eye: take first base plate eye in tunnel center line left side as No. 1 base plate eye, take first base plate eye on center line right side, tunnel as No. 2 base plate eyes, take second base plate eye in tunnel center line left side as No. 3 base plate eyes, take second base plate eye on center line right side, tunnel as No. 4 base plate eyes, take the 3rd the base plate eye in tunnel center line left side as No. 5 base plate eyes, take the 3rd the base plate eye on center line right side, tunnel as No. 6 base plate eyes, take the 4th the base plate eye in tunnel center line left side as No. 7 base plate eyes, take the 4th the base plate eye on center line right side, tunnel as No. 8 base plate eyes, take the 5th the base plate eye in tunnel center line left side as No. 9 base plate eyes, take the 5th the base plate eye on center line right side, tunnel as No. 10 base plate eyes, take the 6th the base plate eye in tunnel center line left side as No. 11 base plate eyes, take the 6th the base plate eye on center line right side, tunnel as No. 12 base plate eyes, take the 7th the base plate eye in tunnel center line left side as No. 13 base plate eyes, take the 7th the base plate eye on center line right side, tunnel as No. 14 base plate eyes.
First row top avalanche eye: take first top avalanche eye of tunnel center line left side as No. 1 top avalanche of first row eye, first top avalanche eye is No. 2 top avalanches of first row eye take center line right side, tunnel, take second the top avalanche eye in tunnel center line left side as No. 3 top avalanches of first row eye, take second the top avalanche in center line right side, tunnel eye as No. 4 top avalanches of first row eye, take the 3rd the top avalanche eye in tunnel center line left side as No. 5 top avalanches of first row eye, the 3rd top avalanche eye is No. 6 top avalanches of first row eye take center line right side, tunnel, take the 4th the top avalanche eye in tunnel center line left side as No. 7 top avalanches of first row eye, the 4th top avalanche eye is No. 8 top avalanches of first row eye take center line right side, tunnel.
Second row top avalanche eye: first top avalanche eye is as No. 2 top avalanches of second row eye, take second the top avalanche eye in tunnel center line left side as No. 3 top avalanches of second row eye, take second the top avalanche in center line right side, tunnel eye as No. 4 top avalanches of second row eye take first top avalanche eye of tunnel center line left side as No. 1 top avalanche of second row eye, take center line right side, tunnel.
Tunnel perimeter eye: take first periphery hole in tunnel center line left side as No. 1 periphery hole, take first periphery hole on center line right side, tunnel as No. 2 periphery holes, take second periphery hole in tunnel center line left side as No. 3 periphery holes, take second periphery hole on center line right side, tunnel as No. 4 periphery holes, by that analogy, take the 13 periphery hole on center line right side, tunnel as No. 26 periphery holes
The delay time of the electric detonator in No. 1 snubber of the first order is Oms, the delay time of the electric detonator in No. 2 snubbers of the first order is 2ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 4ms, the delay time of the electric detonator in No. 4 snubbers of the first order is 6ms, the delay time of the electric detonator in No. 5 snubbers of the first order is 8ms, and the delay time of the electric detonator in No. 6 snubbers of the first order is 10ms.
The delay time of the electric detonator in No. 1 snubber in the second level is 40ms, the delay time of the electric detonator in No. 2 snubbers of the first order is 43ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 46ms, the delay time of the electric detonator in No. 4 snubbers of the first order is 49ms, the delay time of the electric detonator in No. 5 snubbers of the first order is 52ms, and the delay time of the electric detonator in No. 6 snubbers of the first order is 55ms.
The delay time of the electric detonator in No. 1 snubber of the third level is 85ms, the delay time of the electric detonator in No. 2 snubbers of the third level is 89ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 93ms, the delay time of the electric detonator in No. 4 snubbers of the first order is 97ms, the delay time of the electric detonator in No. 5 snubbers of the first order is 101ms, and the delay time of the electric detonator in No. 6 snubbers of the first order is 105ms.
The delay time of No. 1 limit section of first row avalanche intraocular electric detonator is 135ms, the delay time of No. 2 limit sections of first row avalanche intraocular electric detonator is 140ms, the delay time of No. 3 limit sections of first row avalanche intraocular electric detonator is 145ms, the delay time of No. 4 limit sections of first row avalanche intraocular electric detonator is 150ms, the delay time of No. 5 limit sections of first row avalanche intraocular electric detonator is 155ms, and the delay time of No. 6 limit sections of first row avalanche intraocular electric detonator is 160ms.
The delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator is 190ms, the delay time of No. 2 limit sections of secondary series avalanche intraocular electric detonator is 195ms, the delay time of No. 3 limit sections of secondary series avalanche intraocular electric detonator is 200ms, the delay time of No. 4 limit sections of secondary series avalanche intraocular electric detonator is 205ms, the delay time of No. 5 limit sections of secondary series avalanche intraocular electric detonator is 210ms, and the delay time of No. 6 limit sections of secondary series avalanche intraocular electric detonator is 215ms.
In No. 1 sumper the electric detonator delay time be in 245ms, No. 2 sumpers electric detonator delay time be in 250ms, No. 3 sumpers electric detonator delay time be 255ms ..., the electric detonator delay time is 300ms in No. 14 sumpers.
No. 1 top avalanche of first row intraocular electric detonator delay time is 330ms, No. 2 top avalanches of first row intraocular electric detonator delay time is 335ms, No. 3 top avalanches of first row intraocular electric detonator delay time is 340ms, No. 4 top avalanches of first row intraocular electric detonator delay time is 345ms, No. 5 top avalanches of first row intraocular electric detonator delay time is 350ms, No. 6 top avalanches of first row intraocular electric detonator delay time is 355ms, No. 7 top avalanches of first row intraocular electric detonator delay time is 360ms, No. 8 top avalanches of first row intraocular electric detonator delay time is 365ms.
No. 1 top avalanche of second row intraocular electric detonator delay time is that 395ms, No. 2 top avalanches of second row intraocular electric detonator delay time are that 400ms, No. 3 top avalanches of second row intraocular electric detonator delay time are that 405ms, No. 4 top avalanches of second row intraocular electric detonator delay time are 410ms.
In No. 1 periphery hole the electric detonator delay time be in 440ms, No. 2 periphery holes electric detonator delay time be in 442ms, No. 3 periphery holes electric detonator delay time be 444ms ..., the electric detonator delay time is 490ms in No. 26 periphery holes.
Step 3 adopts parallel way with on each electric detonator connection bus.
Step 4 all personnel withdraws the explosion scene, then, adopts the whether conducting of electric detonator continuity test instrument test networking.If the networking is different, then search the networking, find reason, and connect the networking; If the networking conducting then enters the step of detonating.
Claims (1)
1. single-hole continuous initiation method of electronic detonators in tunnel, the method may further comprise the steps:
Step 1 is pressed three grades of angled cut method blasthole drillings of tradition: snubber, N row limit section avalanche eye, base plate eye, M row top avalanche eye, periphery hole; N=1,2,3,4,5, M=1,2,3,4,5;
Snubber is divided into three grades: first order snubber, second level snubber, third level snubber, six of every one-levels; Every grade of snubber is divided into the borehole that two groups of quantity equate, arranges with tunnel center line axial symmetry;
Each N row limit section avalanche eye about limit section avalanche eye comprises, every row limit section avalanche eye are divided into the borehole that two groups of quantity equate, arrange with tunnel center line axial symmetry, and the 1st row avalanche eye to the N of section row limit, limit section avalanche eye is arranged away from the mode of tunnel center line successively;
The base plate eye is arranged with tunnel center line axial symmetry;
M row top avalanche eye be divided into from bottom to top first row top avalanche eye, second row top avalanche eye ..., M row top avalanche eye; Every row top avalanche eye is arranged with tunnel center line axial symmetry;
Periphery hole is arranged with tunnel center line axial symmetry;
Step 2 is explosive and the detonator borehole of packing into;
Step 3 connects blasting circuit;
The whether conducting of step 4 test blasting circuit;
Step 5 is detonated;
It is characterized in that:
Give the numbering of the borehole in the step 1;
At the sequentially odd number that is numbered of tunnel center line left side borehole, in the sequentially even number that is numbered of center line right side, tunnel borehole;
The numbering of every grade of snubber: take nethermost first snubber of tunnel center line left side first row as the initial odd-numbered eye of No. 1 snubber of the first order, take nethermost first snubber of center line right side, tunnel first row as the initial even-numbered eye of No. 2 snubbers of the first order,, the like to No. 6 snubbers of the first order; Second level snubber is identical with first order snubber method for numbering serial to the numbering of third level snubber;
Being numbered of every row limit section's avalanche eye: take nethermost first limit section avalanche eye of tunnel center line left side first row as the initial odd-numbered eye of No. 1 limit section of first row avalanche eye; The initial even-numbered eye of No. 2 limit sections of first row that are numbered avalanche eye with the nethermost limit of first row, center line right side, tunnel section avalanche eye; The numbering of avalanche eye to the N row limit section of secondary series limit section avalanche eye is identical with first row limit section avalanche eye method for numbering serial;
The numbering of tunnel floor eye: take first base plate eye in tunnel center line left side as No. 1 initial odd-numbered eye of base plate eye; Take first base plate eye on center line right side, tunnel as No. 2 initial even-numbered eyes of base plate eye;
Being numbered of every row top avalanche eye: avalanche eye in first row top is take first top avalanche eye of tunnel center line left side as the initial odd-numbered eye of No. 1 top of first row avalanche eye; First top avalanche eye of center line right side, tunnel is the initial even-numbered eye of No. 2 top of first row avalanche eye; The numbering of second row top avalanche eye to the M row top avalanche eye is identical with first row top avalanche eye method for numbering serial;
The numbering of tunnel perimeter eye: take first periphery hole in tunnel center line left side as No. 1 initial odd-numbered eye of periphery hole; Take first periphery hole on center line right side, tunnel as No. 2 initial even-numbered eyes of periphery hole;
The detonator of step 2 adopts electric detonator, and the delay time of electric detonator is set according to Grades of Surrounding Rock, when tunnel surrounding is I level or II level:
The delay time of the electric detonator in No. 1 snubber of the first order is 0ms, the delay time of the electric detonator in No. 2 snubbers of the first order is 2ms, the delay time of the electric detonator in No. 3 snubbers of the first order is 4ms, the delay time of the electric detonator in other numbers of first order snubber increases 2ms in order successively;
The delay time of the electric detonator in No. 1 snubber in the second level is that the delay time of electric detonator in the borehole that detonates at last of first order snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers in the second level is that the delay time of the electric detonator in No. 1 snubber in the second level adds 3ms, the delay time of the electric detonator in No. 3 snubbers in the second level is that the delay time of the electric detonator in No. 2 snubbers in the second level adds 3ms, the delay time of the electric detonator in other numbers of second level snubber increases 3ms in order successively;
The delay time of the electric detonator in No. 1 snubber of the third level is that the delay time of electric detonator in the borehole that detonates at last of second level snubber adds 30ms, the delay time of the electric detonator in No. 2 snubbers of the third level is that the delay time of the electric detonator in No. 1 snubber of the third level adds 4ms, the delay time of the electric detonator in No. 3 snubbers of the third level is that the delay time of the electric detonator in No. 2 snubbers of the third level adds 4ms, the delay time of the electric detonator in other numbers of third level snubber increases 4ms in order successively;
The delay time of No. 1 limit section of first row avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of third level snubber adds 30ms, the delay time of No. 2 limit sections of first row avalanche intraocular electric detonator is that the delay time of No. 1 limit section of first row avalanche intraocular electric detonator adds 5ms, then, increase successively in order 5ms; The delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator is that the delay time of electric detonator in the borehole that detonates at last of first row limit section avalanche eye adds 30ms, the delay time of No. 2 limit sections of secondary series avalanche intraocular electric detonator is that the delay time of No. 1 limit section of secondary series avalanche intraocular electric detonator adds 5ms, increases successively in order 5ms; The delay time of the limit section avalanche intraocular electric detonator of other row is identical with the method to set up of the delay time of first row limit section avalanche intraocular electric detonator;
No. 1 base plate intraocular electric detonator delay time adds 30ms for the limit section avalanche intraocular electric detonator delay time that detonates at last, then the delay time that No. 2 base plate intraocular electric detonator delay times are No. 2 base plate intraocular electric detonators adds 5ms, increases successively in order 5ms;
No. 1 top avalanche of first row intraocular electric detonator delay time adds 30ms for the base plate intraocular electric detonator delay time that detonates at last, No. 2 top avalanches of first row intraocular electric detonator delay time is that No. 1 top avalanche of first row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; No. 1 top avalanche of second row intraocular electric detonator delay time is that the interior electric detonator delay time of borehole that avalanche eye in first row top detonates at last adds 30ms, No. 2 top avalanches of second row intraocular electric detonator delay time is that No. 1 top avalanche of second row intraocular electric detonator delay time adds 5ms, then, increase successively in order 5ms; The delay time of other rows' top avalanche intraocular electric detonator is identical with the method to set up of the delay time of first row top avalanche intraocular electric detonator;
The delay time of electric detonator is that the delay time of electric detonator in the borehole that detonates at last of top avalanche eye adds 30ms in No. 1 periphery hole, the electric detonator delay time is that the delay time of electric detonator adds 2ms in No. 1 periphery hole in No. 2 periphery holes, then, increase successively in order 2ms;
When tunnel surrounding is the III level:
The electric detonator time delay interval time is 3ms in the first order snubber; The electric detonator time delay interval time is 4ms in the snubber of the second level; The electric detonator time delay interval time is 5ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 6ms; The electric detonator time delay interval time is 2ms in the periphery hole;
The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level;
The electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level;
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 40ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row limit section avalanche eye;
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 40ms;
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 40ms with the base plate intraocular electric detonator delay time that detonates at last;
No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 40ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 40ms between every row top avalanche eye;
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 40ms in No. 1 periphery hole;
When tunnel surrounding is IV level or V level:
The electric detonator time delay interval time is 4ms in the first order snubber; The electric detonator time delay interval time is 5ms in the snubber of the second level; The electric detonator time delay interval time is 6ms in the third level snubber; Same column limit section avalanche eye, base plate eye, same row's top avalanche intraocular electric detonator time delay interval time are 7ms; The electric detonator time delay interval time is 2ms in the periphery hole;
The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the first order snubber that detonates at last in No. 1 snubber in the second level;
The electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the second level snubber that detonates at last in No. 1 snubber of the third level;
No. 1 limit section of first row avalanche intraocular electric detonator delay time is spaced apart 50ms with the interior electric detonator delay time of the third level snubber that detonates at last; No. 1 limit section of secondary series avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row limit section avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row limit section avalanche eye;
The limit section avalanche intraocular electric detonator delay time that detonates at last of No. 1 base plate intraocular electric detonator delay time and last row is spaced apart 50ms;
No. 1 top avalanche of first row intraocular electric detonator delay time is spaced apart 50ms with the base plate intraocular electric detonator delay time that detonates at last;
No. 1 limit section of second row avalanche intraocular electric detonator delay time is spaced apart 50ms with the first row top avalanche intraocular electric detonator delay time that detonates at last; The delay time interval is 50ms between every row top avalanche eye;
Electric detonator delay time and last row's the top avalanche intraocular electric detonator delay time that detonates at last is spaced apart 50ms in No. 1 periphery hole.
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CN104613830B (en) * | 2014-12-18 | 2017-01-18 | 招金矿业股份有限公司夏甸金矿 | One-time-formed smooth blasting method for laneway |
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US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
CN1375680A (en) * | 2001-03-20 | 2002-10-23 | T&Rb株式会社 | Rock stepped blasting method of increasing blasting efficiency and reducing blasting damage |
CN201764913U (en) * | 2010-08-30 | 2011-03-16 | 中铁十九局集团有限公司 | Compound wedge-shaped cut |
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US5634691A (en) * | 1994-07-13 | 1997-06-03 | Sungkyong Engineering & Construction Limited | Method for excavating a working face by blasting |
CN1375680A (en) * | 2001-03-20 | 2002-10-23 | T&Rb株式会社 | Rock stepped blasting method of increasing blasting efficiency and reducing blasting damage |
CN201764913U (en) * | 2010-08-30 | 2011-03-16 | 中铁十九局集团有限公司 | Compound wedge-shaped cut |
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