CN108061491A - A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m - Google Patents
A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m Download PDFInfo
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- CN108061491A CN108061491A CN201711319184.8A CN201711319184A CN108061491A CN 108061491 A CN108061491 A CN 108061491A CN 201711319184 A CN201711319184 A CN 201711319184A CN 108061491 A CN108061491 A CN 108061491A
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- keyhole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to the bridge cylinder pile foundation blasting methods that a kind of Pile Diameter is 1.4 1.6m, step is drilling, blasting charge, block blasthole mouth, detonation, boring method is to arrange a hollow hole of centre vertically along cylinder pile foundation center line, centered on cylinder pile foundation center line, blasthole inner ring is formed by radius of 0.13 0.17m, blasthole mesosphere is formed by radius of 0.33 0.37m, blasthole outer ring is formed by radius of 0.63 0.67m, 4 keyholes arranged vertically are evenly distributed on blasthole inner ring, 5 via holes arranged vertically are evenly distributed on blasthole mesosphere, 12 periphery holes being obliquely installed are evenly distributed on blasthole outer ring；The central axes of periphery hole and the angle of vertical direction are arccot10 arccot12, and the hole top of periphery hole is small compared with the distance of bottom hole to hollow hole of centre.Blasting quality of the present invention is high, construction efficiency is high, blasting cost is low.
Description
Technical field
The present invention relates to the bridge cylinder pile foundation blasting methods that a kind of Pile Diameter is 1.4-1.6m, belong to bridge construction skill
Art field.
Background technology
Cylinder pile extensive use in science of bridge building, cylinder pile foundation excavate generally use blasting method construction, but existing
Method blasting quality is poor, blasting cost is high, low construction efficiency, if method during cylinder pile foundation Excavation blasting is improper, generation it is quick-fried
Broken shock wave, attenuation of seismic waves and slungshot can cause to damage to pile holes protecting wall, occur retaining wall across collapse, chip off-falling, cracking situations such as, by
This destroys pile holes protecting wall effect, influences stake holes adjoining rock stability, and the slungshot of generation is also possible to above damage excavation area near main sidewalk
Construction installation, equipment.Therefore, suitable blasting method must be selected during cylinder stake holes Excavation blasting, on the one hand improves explosion matter
Amount reduces blasting cost, improves construction efficiency, on the other hand reduces concussion of blasting, avoids damage pile holes protecting wall and construction equipment.
The content of the invention
The technical problem to be solved by the present invention is to：It is poor, quick-fried to solve existing highway bridge cylinder pile foundation blasting method blasting quality
The technical issues of breaking of high cost, low construction efficiency and the fragile pile holes protecting wall of concussion of blasting, construction equipment, provides a kind of pile foundation
The bridge cylinder pile foundation blasting method of a diameter of 1.4-1.6m.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m, is comprised the following steps：
Drilling：Along cylinder pile foundation center line vertically arrangement one hollow hole of centre, centered on cylinder pile foundation center line, with
0.13-0.17m forms blasthole inner ring for radius, and big gun is formed centered on cylinder pile foundation center line, by radius of 0.33-0.37m
Hole mesosphere forms blasthole outer ring, on the blasthole inner ring centered on cylinder pile foundation center line, using 0.63-0.67m as radius
4 keyholes arranged vertically are evenly distributed with, 5 via holes arranged vertically are evenly distributed on the blasthole mesosphere,
12 periphery holes being obliquely installed are evenly distributed on the blasthole outer ring；The central axes of the periphery hole and the folder of vertical direction
Angle is arccot10-arccot12, and the bottom hole of hole top to the distance periphery hole of hollow hole of centre of the periphery hole arrives
The distance of hollow hole of centre is small；
Blasting charge：Installation explosive, the explosive payload Q of keyhole in keyhole, via hole and periphery hole1=(0.23-
0.25)*r2Q*L* η, the explosive payload Q of via hole (3)2=(0.19-0.22) * r2Q*L* η, the explosive payload Q of periphery hole (4)3=
(0.11-0.13)*r2q*L*η；The r is pile foundation radius (m), and the q is explosive specific charge (kg/m3), the L is average borehole
Depth (m), the η are blast hole utilizing factor；The q according to《Blasting engineering volume two table 7-3》And country《(09) Budget of Underground Roadway Engineering
By norm》And the lithology (f coefficients 8~10) of caisson blast working part determines, it can be according to live actual and the in work progress
Quick-fried situation is once tried to be adjusted；
Block blasthole mouth：Block the aperture of the keyhole, via hole and periphery hole；
Detonation：It arranges initiation net, and detonates.
Preferably, the depth of the hollow hole of centre, keyhole, via hole and periphery hole is 1.2m, aperture 40-
45mm。
Preferably, the keyhole and via hole are using coupling continuous charging, and the periphery hole is using coupling spaced loading.
Preferably, the loaded length of the keyhole is 52-64cm, and the loaded length of the via hole is 47-53cm, institute
The loaded length for stating periphery hole is 23-33cm.
Preferably, the blocking of the keyhole, via hole and periphery hole is first blocked with paper or soft fabric, then is blocked up with cohesive soil
Plug.
Preferably, which is characterized in that the stemming length of the keyhole is 0.85-1 times of loaded length, the via hole
Stemming length be 1.2-1.5 times of loaded length, the stemming length of the periphery hole is 1.5-2 times of loaded length.
Preferably, pile foundation Excavation blasting working face often has crevice water or infiltration, therefore the explosive for preferably selecting waterproof strong,
If rock emulsion explosive water-resistance is strong, powder stick shaping, is easy to cutting division and power is moderate, if using No. 2 rock ammonium-antimony explosives,
Water-proofing treatment must then be carried out.
Preferably, to improve demolition effect, the degree of fragmentation of rock is effectively improved, the stability of retaining wall is protected, makes keyhole
Interior explosive detonates at first, then explosive initiation in via hole, the explosive initiation in last periphery hole.
Preferably, the initiation net uses millisecond delay electric detonator, and the section of the detonating capsule after keyhole powder charge is not
1, the section of the detonating capsule after via hole powder charge not Wei 3, the section of the detonating capsule after periphery hole powder charge Wei 5.
Preferably, the initiation net uses non-electrical Millisecond Nonel Tube Detonator, the section of the detonating capsule after keyhole powder charge
Not Wei 1, the section of the detonating capsule after via hole powder charge not Wei 3, the section of the detonating capsule after periphery hole powder charge Wei 5.
The beneficial effects of the invention are as follows：
The Pile Diameter of the present invention is the bridge cylinder pile foundation blasting method of 1.4-1.6m, and step is drilling, blasting charge, blocks up
Plug big gun eats dishes without rice or wine, detonates, and the boring method is to arrange a hollow hole of centre vertically along cylinder pile foundation center line, in cylinder pile foundation
Blasthole inner ring is formed centered on heart line, by radius of 0.13-0.17m, centered on cylinder pile foundation center line, with 0.33-0.37m
Blasthole mesosphere is formed for radius, blasthole outer ring, institute are formed centered on cylinder pile foundation center line, by radius of 0.63-0.67m
It states and 4 keyholes arranged vertically is evenly distributed on blasthole inner ring, 5 vertical cloth are evenly distributed on the blasthole mesosphere
The via hole put is evenly distributed with 12 periphery holes being obliquely installed on the blasthole outer ring；The central axes of the periphery hole with
The angle of vertical direction is arccot10-arccot12, and the distance week to hollow hole of centre is pushed up in the hole of the periphery hole
The distance of lateral opening bottom hole to hollow hole of centre is small.The method of the present invention can make full use of explosive energy, reduce explosive consumption, carry
High construction efficiency has higher blasting quality and relatively low blasting cost；In addition, the present invention blasting method can mitigate it is quick-fried
Broken vibration and slungshot can cause to damage to pile holes protecting wall, avoid the occurrence of retaining wall across collapse, chip off-falling, cracking situations such as, make stake holes country rock
Stablize, moreover it is possible to avoid construction installation above damage excavation area near main sidewalk, equipment.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the pile foundation blasthole floor plan of the present invention；
Fig. 2 is the pile foundation blasthole section layout drawing of the present invention；
Fig. 3 is the pile foundation blast hole loading structure schematic diagram of the present invention；
Reference numeral in figure is：1- hollow hole of centre, 2- keyholes, 3- via holes, 4- periphery holes.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
Embodiment 1
The present embodiment provides the bridge cylinder pile foundation blasting methods that a kind of Pile Diameter is 1.5m, comprise the following steps：
Drilling：As depicted in figs. 1 and 2, a hollow hole of centre 1 is arranged vertically along cylinder pile foundation center line, with cylinder pile foundation
Blasthole inner ring is formed centered on center line, by radius of 0.15m, centered on cylinder pile foundation center line, using 0.35m as radius shape
Into blasthole mesosphere, blasthole outer ring is formed centered on cylinder pile foundation center line, using 0.65m as radius, on the blasthole inner ring
4 keyholes arranged vertically 2 are evenly distributed with, 5 via holes arranged vertically are evenly distributed on the blasthole mesosphere
3,12 periphery holes being obliquely installed 4 are evenly distributed on the blasthole outer ring；The central axes of the periphery hole 4 and vertical direction
Angle be arccot12, and the hole top of the periphery hole 4 to the distance periphery hole 4 of hollow hole of centre 1 bottom hole in
The distance of heart emptying aperture 1 is small；
Blasting charge：Installation explosive, the explosive payload Q of keyhole 2 in keyhole 2, via hole 3 and periphery hole 41=0.14*
r2* q*L* η, the explosive payload Q of via hole2=0.093*r2Q*L* η, the explosive payload Q of periphery hole3=0.07*r2q*L*η；The r is
Pile foundation radius (m), the q are explosive specific charge (kg/m3), the L is average borehole depth (m), and the η is blast hole utilizing factor；
The q of the present embodiment is 4.5kg/m3, η 0.8, Q1=0.25*r2* q*L* η=0.25*0.56m2*4.5kg/m3* 1.2m*0.8=
0.6kg, Q2=0.21*r2* q*L* η=0.21*0.56m2*4.5kg/m3* 1.2m*0.8=0.51kg, Q3=0.13*r2*q*L*
η=0.13*0.56m2*4.5kg/m3* 1.2m*0.8=0.31kg；
The present embodiment selects rock emulsion explosive, and the explosive waterproof is strong, powder stick shaping, is easy to cutting division and power is fitted
In；As shown in figure 3, the keyhole 2, using coupling continuous charging, loaded length 60cm, the via hole 3 is using coupling company
Continuous powder charge, loaded length 40cm, the periphery hole 4 is using coupling spaced loading, loaded length 30cm；
Block blasthole mouth：The aperture of the keyhole 2, via hole 3 and periphery hole 4 is blocked, the present embodiment is first blocked with paper,
It is blocked again with cohesive soil, the stemming length of the keyhole 2 is 60cm, and the stemming length of the via hole 3 is 50cm, the week
Lateral opening 4 stemming length is 50cm；
Detonation：It arranges initiation net, and detonates；The present embodiment uses millisecond delay electric detonator initiation net, and keyhole 2 fills
The section of detonating capsule after medicine not Wei 1, the section of the detonating capsule after 3 powder charge of via hole not Wei 3, the detonation after 4 powder charge of periphery hole
The section of detonator not Wei 5, the explosive in keyhole 2 is made first to detonate, explosive in via hole 3 re-detonates, and the explosive in periphery hole 4 is most
After detonate, this design can improve demolition effect, protect the stability of retaining wall.
Embodiment 2
The present embodiment provides the bridge cylinder pile foundation blasting methods that a kind of Pile Diameter is 1.6m, comprise the following steps：
Drilling：As depicted in figs. 1 and 2, a hollow hole of centre 1 is arranged vertically along cylinder pile foundation center line, with cylinder pile foundation
Blasthole inner ring is formed centered on center line, by radius of 0.17m, centered on cylinder pile foundation center line, using 0.37m as radius shape
Into blasthole mesosphere, blasthole outer ring is formed centered on cylinder pile foundation center line, using 0.67m as radius, on the blasthole inner ring
4 keyholes arranged vertically 2 are evenly distributed with, 5 via holes arranged vertically are evenly distributed on the blasthole mesosphere
3,12 periphery holes being obliquely installed 4 are evenly distributed on the blasthole outer ring；The central axes of the periphery hole 4 and vertical direction
Angle be arccot10, and the hole top of the periphery hole 4 to the distance periphery hole 4 of hollow hole of centre 1 bottom hole in
The distance of heart emptying aperture 1 is small；
Blasting charge：Installation explosive, the explosive payload Q of keyhole 2 in keyhole 2, via hole 3 and periphery hole 41=0.16*
r2Q*L* η, the explosive payload Q of via hole2=0.11*r2Q*L* η, the explosive payload Q of periphery hole3=0.08*r2q*L*η；The q is fried
Prescription consumes (kg/m3), the L is average borehole depth (m), and the η is blast hole utilizing factor；The q of the present embodiment is 4.5kg/m3, η
For 0.8, Q1=0.23*r2* q*L* η=0.23*0.64m2*4.5kg/m3* 1.2m*0.8=0.64kg, Q2=0.19*r2*q*L*
η=0.19*0.64m2*4.5kg/m3* 1.2m*0.8=0.53kg, Q3=0.12*r2* q*L* η=0.12*0.64m2*4.5kg/
m3* 1.2m*0.8=0.33kg；
The present embodiment selects rock emulsion explosive, and the explosive waterproof is strong, powder stick shaping, is easy to cutting division and power is fitted
In；As shown in figure 3, the keyhole 2, using coupling continuous charging, loaded length 64cm, the via hole 3 is using coupling company
Continuous powder charge, loaded length 42cm, the periphery hole 4 is using coupling spaced loading, loaded length 33cm；
Block blasthole mouth：The aperture of the keyhole 2, via hole 3 and periphery hole 4 is blocked, the present embodiment is first with soft fabric
It blocking, then is blocked with cohesive soil, the stemming length of the keyhole 2 is 54cm, and the stemming length of the via hole 3 is 63cm,
The stemming length of the periphery hole 4 is 66cm；
Detonation：It arranges initiation net, and detonates；The present embodiment uses non-electrical Millisecond Nonel Tube Detonator initiation net, slotting
The section of detonating capsule after 2 powder charge of hole not Wei 1, the section of the detonating capsule after 3 powder charge of via hole not Wei 3, after 4 powder charge of periphery hole
The section of detonating capsule not Wei 5, the explosive in keyhole 2 is made first to detonate, explosive in via hole 3 re-detonates, fried in periphery hole 4
Medicine finally detonates, this design can improve demolition effect, protect the stability of retaining wall.
Embodiment 3
The present embodiment provides the bridge cylinder pile foundation blasting methods that a kind of Pile Diameter is 1.4m, comprise the following steps：
Drilling：As depicted in figs. 1 and 2, a hollow hole of centre 1 is arranged vertically along cylinder pile foundation center line, with cylinder pile foundation
Blasthole inner ring is formed centered on center line, by radius of 0.13m, centered on cylinder pile foundation center line, using 0.33m as radius shape
Into blasthole mesosphere, blasthole outer ring is formed centered on cylinder pile foundation center line, using 0.63m as radius, on the blasthole inner ring
4 keyholes arranged vertically 2 are evenly distributed with, 5 via holes arranged vertically are evenly distributed on the blasthole mesosphere
3,12 periphery holes being obliquely installed 4 are evenly distributed on the blasthole outer ring；The central axes of the periphery hole 4 and vertical direction
Angle be arccot11, and the hole top of the periphery hole 4 to the distance periphery hole 4 of hollow hole of centre 1 bottom hole in
The distance of heart emptying aperture 1 is small；
Blasting charge：Installation explosive, the explosive payload Q of keyhole 2 in keyhole 2, via hole 3 and periphery hole 41=0.12*
r2Q*L* η, the explosive payload Q of via hole2=0.08*r2Q*L* η, the explosive payload Q of periphery hole3=0.08*r2q*L*η；The q is fried
Prescription consumes (kg/m3), the L is average borehole depth (m), and the η is blast hole utilizing factor；The q of the present embodiment is 4.5kg/m3, η
For 0.8, Q1=0.24*r2* q*L* η=0.24*0.49m2*4.5kg/m3* 1.2m*0.8=0.52kg, Q2=0.22*r2*q*L*
η=0.22*0.49m2*4.5kg/m3* 1.2m*0.8=0.47kg, Q3=0.11*r2* q*L* η=0.11*0.49m2*4.5kg/
m3* 1.2m*0.8=0.23kg；
The present embodiment selects rock emulsion explosive, and the explosive waterproof is strong, powder stick shaping, is easy to cutting division and power is fitted
In；As shown in figure 3, the keyhole 2, using coupling continuous charging, loaded length 52cm, the via hole 3 is using coupling company
Continuous powder charge, loaded length 38cm, the periphery hole 4 is using coupling spaced loading, loaded length 25cm；
Block blasthole mouth：The aperture of the keyhole 2, via hole 3 and periphery hole 4 is blocked, the present embodiment is first blocked with paper,
It is blocked again with cohesive soil, the stemming length of the keyhole 2 is 52cm, and the stemming length of the via hole 3 is 46cm, the week
Lateral opening 4 stemming length is 37.5cm；
Detonation：It arranges initiation net, and detonates；The present embodiment uses millisecond delay electric detonator initiation net, and keyhole 2 fills
The section of detonating capsule after medicine not Wei 1, the section of the detonating capsule after 3 powder charge of via hole not Wei 3, the detonation after 4 powder charge of periphery hole
The section of detonator not Wei 5, the explosive in keyhole 2 is made first to detonate, explosive in via hole 3 re-detonates, and the explosive in periphery hole 4 is most
After detonate, this design can improve demolition effect, protect the stability of retaining wall.
Using above-mentioned desirable embodiment according to the invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (10)
1. a kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m, which is characterized in that is comprised the following steps：
Drilling：Along cylinder pile foundation center line vertically arrangement one hollow hole of centre (1), centered on cylinder pile foundation center line, with
0.13-0.17m forms blasthole inner ring for radius, and big gun is formed centered on cylinder pile foundation center line, by radius of 0.33-0.37m
Hole mesosphere forms blasthole outer ring, on the blasthole inner ring centered on cylinder pile foundation center line, using 0.63-0.67m as radius
4 keyholes arranged vertically (2) are evenly distributed with, 5 auxiliary arranged vertically are evenly distributed on the blasthole mesosphere
Hole (3) is evenly distributed with 12 periphery holes being obliquely installed (4) on the blasthole outer ring；The central axes of the periphery hole (4) with
The angle of vertical direction is arccot10-arccot12, and the hole top of the periphery hole (4) to hollow hole of centre (1) distance compared with
The distance of bottom hole to the hollow hole of centre (1) of the periphery hole (4) is small；
Blasting charge：Installation explosive, the explosive payload Q of keyhole (2) in keyhole (2), via hole (3) and periphery hole (4)1=
(0.23-0.25)*r2Q*L* η, the explosive payload Q of via hole (3)2=(0.19-0.22) * r2Q*L* η, the explosive payload of periphery hole (4)
Q3=(0.11-0.13) * r2q*L*η；The r is pile foundation radius (m), and the q is explosive specific charge (kg/m3), the L is average
Borehole depth (m), the η are blast hole utilizing factor；
Block blasthole mouth：Block the aperture of the keyhole (2), via hole (3) and periphery hole (4)；
Detonation：It arranges initiation net, and detonates.
2. Pile Diameter according to claim 1 is the bridge cylinder pile foundation blasting method of 1.4-1.6m, which is characterized in that
The hollow hole of centre (1), keyhole (2), the depth of via hole (3) and periphery hole (4) are 1.2m, aperture 40-45mm.
3. Pile Diameter according to claim 1 or 2 is the bridge cylinder pile foundation blasting method of 1.4-1.6m, feature exists
In the keyhole (2) and via hole (3) are using coupling continuous charging, and the periphery hole (4) is using coupling spaced loading.
4. according to the bridge cylinder pile foundation blasting method that claim 1-3 any one of them Pile Diameter is 1.4-1.6m, institute
The loaded length of keyhole (2) is stated as 52-64cm, the loaded length of the via hole (3) is 47-53cm, the periphery hole (4)
Loaded length be 23-33cm.
5. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-4 any one of them Pile Diameter,
It being characterized in that, the blocking of the keyhole (2), via hole (3) and periphery hole (4) is first blocked with paper or soft fabric, then with sticky
Soil blocks.
6. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-5 any one of them Pile Diameter,
It is characterized in that, the stemming length of the keyhole (2) is 0.85-1 times of loaded length, the stemming length of the via hole (3)
For 1.2-1.5 times of loaded length, the stemming length of the periphery hole (4) is 1.5-2 times of loaded length.
7. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-6 any one of them Pile Diameter,
It is characterized in that, the explosive is rock emulsion explosive or No. 2 rock ammonium-antimony explosives Jing Guo water-proofing treatment.
8. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-7 any one of them Pile Diameter,
It is characterized in that, the explosive in keyhole (2) detonates at first, then via hole (3) interior explosive initiation, in last periphery hole (4)
Explosive initiation.
9. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-8 any one of them Pile Diameter,
Be characterized in that, the initiation net uses millisecond delay electric detonator, the section of the detonating capsule after keyhole (2) powder charge not Wei 1, it is auxiliary
Help the section of the detonating capsule after hole (3) powder charge not Wei 3, the section of the detonating capsule after periphery hole (4) powder charge Wei 5.
10. it is the bridge cylinder pile foundation blasting method of 1.4-1.6m according to claim 1-8 any one of them Pile Diameter,
It is characterized in that, the initiation net uses non-electrical Millisecond Nonel Tube Detonator, and the section of the detonating capsule after keyhole (2) powder charge is not
1, the section of the detonating capsule after via hole (3) powder charge not Wei 3, the section of the detonating capsule after periphery hole (4) powder charge Wei 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319184.8A CN108061491A (en) | 2017-12-12 | 2017-12-12 | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711319184.8A CN108061491A (en) | 2017-12-12 | 2017-12-12 | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m |
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| Publication Number | Publication Date |
|---|---|
| CN108061491A true CN108061491A (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711319184.8A Pending CN108061491A (en) | 2017-12-12 | 2017-12-12 | A kind of Pile Diameter is the bridge cylinder pile foundation blasting method of 1.4-1.6m |
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| CN (1) | CN108061491A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707151A (en) * | 2020-06-11 | 2020-09-25 | 武汉大学 | One-time blasting excavation forming method for offshore rock-socketed pile foundation |
| CN112033243A (en) * | 2020-09-16 | 2020-12-04 | 云南迪庆有色金属有限责任公司 | Upward sector wave-shaped bottom-pulling blasting method |
| CN114719698A (en) * | 2022-05-13 | 2022-07-08 | 中铁四局集团有限公司 | Ultra-long lower step blasting construction method based on blasting refinement analysis |
-
2017
- 2017-12-12 CN CN201711319184.8A patent/CN108061491A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 张春智: "巷道全断面开挖法中***技术参数的确定", 《中国矿山工程》 * |
| 李梓源等: "大直径中空孔在穿越复杂环境控制***中的应用研究", 《铁道标准设计》 * |
| 王为: "立交桥桥脚桩基岩石开挖***", 《***》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707151A (en) * | 2020-06-11 | 2020-09-25 | 武汉大学 | One-time blasting excavation forming method for offshore rock-socketed pile foundation |
| CN112033243A (en) * | 2020-09-16 | 2020-12-04 | 云南迪庆有色金属有限责任公司 | Upward sector wave-shaped bottom-pulling blasting method |
| CN114719698A (en) * | 2022-05-13 | 2022-07-08 | 中铁四局集团有限公司 | Ultra-long lower step blasting construction method based on blasting refinement analysis |
| CN114719698B (en) * | 2022-05-13 | 2023-11-03 | 中铁四局集团有限公司 | Ultra-long lower step blasting construction method based on blasting refinement analysis |
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Application publication date: 20180522 |