CN109931828A - Artificial digging pile blast working well head buffering safeguard - Google Patents
Artificial digging pile blast working well head buffering safeguard Download PDFInfo
- Publication number
- CN109931828A CN109931828A CN201910291662.1A CN201910291662A CN109931828A CN 109931828 A CN109931828 A CN 109931828A CN 201910291662 A CN201910291662 A CN 201910291662A CN 109931828 A CN109931828 A CN 109931828A
- Authority
- CN
- China
- Prior art keywords
- well head
- support frame
- digging pile
- artificial digging
- blast working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003139 buffering effect Effects 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 51
- 239000010959 steel Substances 0.000 claims description 51
- 238000010276 construction Methods 0.000 claims description 20
- 239000004575 stone Substances 0.000 claims description 11
- 210000000988 bone and bone Anatomy 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of artificial digging pile blast working well head buffering safeguards.The protective device includes support frame, and the bottom of support frame is equipped with chassis；At least lower part of the support frame is provided with protective net, which circumferentially wraps the support frame；It is equipped with horizontally disposed support plate in the support frame lower part, is connected between the support plate and the chassis of support frame by more springs, relief hole is offered in the support plate, dismountable weight bearing is equipped with above the support plate.Of the invention protective device dismounting, conveniently moving, and protection effect is good.
Description
Technical field
The present invention relates to a kind of artificial digging pile blast working well head buffering safeguards, belong to safety protection field.
Background technique
Because artificial digging pile has bearing capacity big, construction equipment simple, reliable construction quality, short time limit, low cost etc. excellent
Point, at present can be through common in all kinds of construction projects (building engineering, municipal public engineering, water conservancy and science of bridge building etc.)
It arrives, there is superiority especially in the construction containing expansion pile head.Pile crown need to generally enter rock stratum 500mm ~ 1000mm in design, and
150mm ~ 300mm is expanded to pile crown, in lithostratigraphy or is encountered in major diameter stone stratum, through the construction party frequently with explosion
Method, the construction method that the artificial digging pile overwhelming majority in lithostratigraphy is combined using artificial, explosion now, i.e. weak surrounding rock stratum
It is excavated with pneumatic pick, spade；Basement rock or hard boulder section use blast working.Pile foundation rock blasting is since section is small, clipping is made
With it is big, without reasons such as explosion free faces, under the high pressure draught effect sprayed upwards, the slungshot that explosion generates can only up fly
Out, it is be easy to cause major accident, while the protection of manual digging pile construction well head is improper, the personnel of easily leading to, which fall, causes safe thing
Therefore.
In order to reach a kind of good Flying-rock control effect, safe safeguard procedures, flyrock protection measure at present mainly has
The forms such as the compacting of well head steel plate and spring mattress bed compacting.Setting protective plate form, i.e. steel pipe are mainly taken in the compacting measure of well head steel plate
Or the lumps of wood does supporting beam (also serving as exhaust passage) in well head, places steel protective plate thereon, protective plate top big gun is by flexible material
Ballast (counterweight, stone) is arranged above in covering, big gun.Supporting beam is easy to happen displacement in such method, top ballast (counterweight,
Stone) easily it to be scattered, the cleaning workload after explosion around well head is big and reusing is poor；Spring mattress bed compacting measure is mainly taken
The form for covering spring mattress bed, i.e., cover waste and old spring mattress bed, and in spring mattress bed top ballast above well head.In such method easily
It causes tiny slungshot to fly out, leads to slungshot casualty accident, and such method reusable rate is low.
The prior art has the following disadvantages:
1, serious displacement easily occurs for well head superstructure when explosion, and top ballast is easily scattered, the cleaning workload of surrounding after explosion
Greatly.
2, there is slungshot to fly out because protection is not in place when explosion, cause safety accident.
3, the object cracky of explosion, recycling property are poor.
4, explosion is moved back except upper protective and ballast consumption people are time-consuming.
It is to arrange column in artificial digging pile aperture surrounding used by Chinese utility model patent CN205027219U, by
The surface that column will support bent cap to be supported on artificial digging pile aperture, column and support bent cap are assembled into frame system, the frame
The side airbreak of frame system, supporting the clearance of the first segment retaining wall of bent cap and artificial digging pile is 800-1000mm, support
Bent cap top is capped with big gun, and when blast working plays safety protection function.It is still remained disclosed by CN205027219U patent
Following disadvantage:
1, using four columns support bent cap, four profile heights are all 800-1000mm, four sides be all it is empty, can not stop from
The slungshot that side flies out, in four side surface directions, there are security risks.
2, the placement of counterweight need to be directed at weight linear meter, and counterweight is not easy to operate when placing.
3, whole installation process link is more, and execute-in-place is inconvenient, is limited by levelling of the land degree larger.
4, the big gun for the 200mm wide being made into waste tire is not easy to binding connection, and the globality after connection is poor,
Under the impact of explosion air pressure, it might have slungshot and fly out from the gap of binding, there are security risks.
Summary of the invention
The present invention is intended to provide a kind of artificial digging pile blast working well head buffering safeguard, protective device dismounting,
Conveniently moving, and protection effect is good.
To achieve the goals above, the technical scheme adopted by the invention is that:
The bottom of a kind of artificial digging pile blast working well head buffering safeguard, including support frame, support frame is equipped with bottom
Frame；It is characterized in that, at least lower part of the support frame is provided with protective net, which circumferentially wraps the support rib
Frame；
Horizontally disposed support plate is equipped in the support frame lower part, by more between the support plate and the chassis of support frame
Root spring is connected, and relief hole is offered in the support plate, dismountable weight bearing is equipped with above the support plate.
As a result, by above construction well head described in guard covers, when explosion, shock wave passes through chassis, encounters support plate
Support plate is pushed to move up afterwards, more springs while energy-absorbing guarantee that blasting process is safely controllable by relief hole pressure release.It does not need
When explosion, above construction well head described in guard covers, it can be used as safety device, prevent personnel from falling into a well
It is interior.
According to an embodiment of the invention, can also make further optimization to the present invention, the following are the skills formed after optimization
Art scheme:
In order to improve the service life of protective device, the support plate is steel plate, and steel plate top surface is equipped with rubber pad.
For the ease of the connecting support as spring, while guaranteeing support frame bottom hollow out as far as possible, the chassis is more
The both ends of root channel steel, channel steel are connected in the bottom wall of support frame.The release of shock wave is not influenced in this way.
Preferably, the support frame is that four vertical angle steel and bottom transverse direction angle steel weld to be formed, the support frame
Top is fixedly connected with cross bar.It not only ensure that the structural strength of support frame in this way, but also be convenient for the movement of protective device.
Preferably, the weight bearing is sandbag or stone.
In order to guarantee that protection effect, the support frame integrally cover the construction well head.
Fragment flies out from support frame side when explosion in order to prevent, and the protective net is to be fixed on support frame lower part
The height of reinforced mesh, the reinforced mesh is higher than the support plate.
When impacting support plate when in order to guarantee explosion, the motion profile of support plate is controllable, opens on the support frame side wall
There is vertically arranged guide groove, the support plate end has the guide protrusions protruded into the guide groove；Or the support rib
Vertically arranged guided way is provided on frame side wall, the support plate end has the guide groove cooperated with the guided way.It is best
Ground is equipped with backstop in support frame side wall upper part, thus the top dead centre as support plate.
In order to decompose shock wave bring high pressure draught more balancedly, it is preferable that the relief hole have it is multiple, adjacent two
Spacing between a relief hole is 200mm ~ 300mm；It is preferred that the relief hole is located at right above construction well head.
Artificial digging pile blast working, when explosion, will necessarily generate very big shock wave, the stone that shock wave can will scrap
Equal substances are taken out of, therefore as safety device, should have the function of offsetting blasting impact power, and be unlikely in blasting impact
Under the action of power and to irreversible damage itself is caused, bullet can use as buffer component come supporting steel plate using spring
The good stretching of spring or compression performance.
In order to preferably carry out pressure release to the high pressure draught that explosion moment generates and slungshot can be stopped to fly out, steel plate four
It is provided with relief hole week, and right above the non-face stake well well head of these relief holes.
There are two types of effects for protective device tool of the invention, first is that as buffering safeguard when blast working；Second is that conduct
Artificial digging pile well head horizontal and vertical safety device when not constructing usually, prevents personnel from falling into a well.Previous
Construction in, artificial digging pile well head horizontal protective uses plank sheathing or reinforced mesh, and vertical protection is carried out using steel tube fastener
It sets up, it is time-consuming and laborious, and also protection effect is undesirable, is difficult to reuse.Horizontal and vertical protection is employed the invention as, only
It need to be carried to above a well head, and recycling that can be multiple.
Artificial digging pile blast working well head buffering safeguard of the invention can be effectively controlled to be generated when blast working
Slungshot, device globality is strong, structure is simple, power transmission is clear, safe and reliable, and repeatable is used in turn, long service life；It can be fast
Fast assembly and disassembly, device top ballast (sandbag, stone) remove unload it is convenient and efficient；Buffer unit when can be as blast working,
Also it can be used as artificial digging pile well head horizontal and vertical safety device when not constructing usually, prevent personnel from falling into a well
It is interior.
Compared with prior art, the beneficial effects of the present invention are:
1, buffering safeguard of the invention can be effectively controlled the slungshot generated when artificial digging pile blast working, device globality
By force, compact-sized, good integrity, power transmission are clear, safe and reliable, and repeatable is used in turn, long service life.
2, buffering safeguard energy quick assembly and disassembly of the invention, device top ballast (sandbag, stone) remove unload conveniently,
Fast.
3, buffering safeguard when buffering safeguard of the invention can be as blast working also can be used as usually not
Artificial digging pile well head horizontal and vertical safety device when construction, prevents personnel from falling into a well.It is possible to further
On protective device after coating warning color paint (such as rust or yellow), artificial digging pile well head protects standard, beauty on the whole
It sees.
4, in the case where not placing ballast, for apparatus of the present invention weight in 60kg or so, two construction personnel can be very square
Just move.
5, the ballast that apparatus of the present invention can be born can achieve 300kg--400kg, be able to satisfy mediocrity's work caisson completely
The impact force that explosive charge (1.5kg--4kg) used generates when blast working prevents slungshot from flying out a well.
Detailed description of the invention
Fig. 1 is the structure principle chart of one embodiment of the invention；
Fig. 2 is the front view of the present embodiment；
Fig. 3 is the sectional view along Fig. 1 at A-A；
Fig. 4 is the connection detail at I along Fig. 1.
In figure
1, artificial digging pile blast working well head buffering safeguard；2, man-made digging pile mould-pipe profile；3, channel steel；4, spring；
5, relief hole；6, angle steel；7, bolt hole；8, band steel；9, bolt；10, rubber pad；11, steel plate；12, sandbag；13, washer；14,
Nut；15, reinforced mesh；16, construction well head.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.For sake of convenience, hereinafter as occurred
"upper", "lower", "left", "right" printed words only indicate consistent with the upper and lower, left and right direction of attached drawing itself, do not play limit to structure
It is set for using.
A kind of artificial digging pile blast working well head buffering safeguard, as shown in Figs 1-4, mainly by four vertical 50 jiaos
Steel 6 and bottom transverse direction angle steel 6 are welded into skeleton, and the vertical 6 middle and top part surrounding of angle steel is provided with bolt hole 7, the spiral shell
Keyhole 7 plays the fixed band steel of angle steel 6 and 50 8.
In order to alleviate the shock wave that explosion generates, among the artificial digging pile blast working well head buffering safeguard 1
Spring bumper is placed, the spring bumper is by 10mm thickness rubber pad 10,5mm-10mm steel plate 11, brute spring 4, slot
Steel 3 forms.The rubber pad 10, spring 4, is fixed up to form whole spring bumper between channel steel 3 at steel plate 11.
It is 200mm that the spring 4, which is distributed spacing, and it is 200mm-300mm that channel steel 3, which is distributed spacing,.
The height of the vertical angle steel 6 is 600mm-900mm, and transverse direction angle steel 6 length in bottom is that well head diameter both sides add
200mm-300mm.The reinforced mesh 15 of welding Ф 6, mesh spacing 50mm*50mm-100mm* on the outside of 6 surrounding of angle steel
100mm.The length of the band steel 8 is that the 6 length both sides of bottom transverse direction angle steel subtract 10mm.The steel plate 11 arrives surrounding angle steel
6 distance is 20mm, and the distance of channel steel 3 to both ends angle steel 6 is 20mm.The steel plate surrounding is provided with relief hole 5, relief hole
5 spacing are 200mm-300mm.
The non-ballast height of spring bumper is 150mm-250mm.
In order to guarantee that steel plate moves up controllably in explosion, is provided with vertically arranged guiding on the support frame side wall
Slot, the steel plate end have the guide protrusions protruded into the guide groove.As a kind of equivalent replacement mode, the support rib
Vertically arranged guided way is provided on frame side wall, the steel plate end has the guide groove cooperated with the guided way.It is supporting
Skeleton side wall upper part is equipped with backstop, and steel plate can be prevented mobile excessive.
Using above-mentioned artificial digging pile blast working well head buffering safeguard construction method the following steps are included:
1, the artificial digging pile blast working well head buffering of dimension is placed centrally in the artificial digging pile well head for needing explosion
1 skeleton of protective device；
2, it is placed among 1 skeleton of artificial digging pile blast working well head buffering safeguard and has connected molding spring buffer
Device；
3, four vertical 6 middle and top part surroundings of angle steel are attached by band steel 8 and bolt 9；
4, bolt 9 is passed through into vertical angle steel 8 and reserves aperture and band steel 8 reserves aperture, then place washer 13, then with nut 14 into
Row is twisted solid；
5, sandbag 12 or stone is placed above in spring bumper and carries out ballast, ballast weight explosive charge according to used in explosion into
Row calculates, and then can carry out blast working；
It 6,, can be quick-fried by above-mentioned artificial digging pile in non-Construction State after the completion of blast working and artificial digging pile well head are cleared up
Broken construction well head buffering safeguard 1 continues to also serve as well mouth protector use, prevents personnel from falling into inside pile foundation.
7, it assembled can be placed in above well head using lifting or carrying after the completion, in placement sandbag 12 or stone.
Above-mentioned artificial digging pile blast working well head buffering safeguard can be effectively controlled the slungshot generated when blast working,
Device globality is strong, structure is simple, power transmission is clear, safe and reliable, and repeatable is used in turn, long service life；It can be quick group
Assembly and disassembly are unloaded, device top ballast (sandbag, stone) remove unload it is convenient and efficient；Buffer unit when can be as blast working, can also
The safety device horizontal and vertical as artificial digging pile well head when not constructing usually, prevents personnel from falling into a well.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention
Modification each fall within the application range as defined in the appended claims.
Claims (10)
1. a kind of artificial digging pile blast working well head buffering safeguard, including support frame, the bottom of support frame are equipped with
Chassis；It is characterized in that, at least lower part of the support frame is provided with protective net, which circumferentially wraps the support rib
Frame；
Horizontally disposed support plate is equipped in the support frame lower part, by more between the support plate and the chassis of support frame
Root spring (4) is connected, and offers in the support plate relief hole (5), and dismountable weight bearing is equipped with above the support plate.
2. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that the branch
Fagging is steel plate (11), and steel plate (11) top surface is equipped with rubber pad (10).
3. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that the bottom
Frame is more channel steels (3), and the both ends of channel steel (3) are connected in the bottom wall of support frame.
4. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that the branch
Support bone frame is that four vertical angle steel and bottom transverse direction angle steel weld to be formed, and is fixedly connected with cross bar at the top of the support frame.
5. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that described negative
Weight is sandbag (12) or stone.
6. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that the branch
Support bone frame integrally covers the construction well head (16).
7. artificial digging pile blast working well head buffering safeguard according to claim 1, which is characterized in that described anti-
Protective net is the reinforced mesh (15) for being fixed on support frame lower part, and the height of the reinforced mesh (15) is higher than the support plate.
8. artificial digging pile blast working well head buffering safeguard, feature described in any one of -7 according to claim 1
It is, vertically arranged guide groove is provided on the support frame side wall, and the support plate end, which has, protrudes into the guide groove
Interior guide protrusions；Or vertically arranged guided way is provided on the support frame side wall, the support plate end has and institute
State the guide groove of guided way cooperation.
9. artificial digging pile blast working well head buffering safeguard according to claim 8, which is characterized in that supporting
Skeleton side wall upper part is equipped with backstop.
10. artificial digging pile blast working well head buffering safeguard, feature described in any one of -7 according to claim 1
It is, the relief hole (5) has multiple, and spacing between two neighboring relief hole (5) is 200mm-300mm；It is preferred that described let out
Hole (5) are pressed to be located at right above construction well head (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291662.1A CN109931828A (en) | 2019-04-12 | 2019-04-12 | Artificial digging pile blast working well head buffering safeguard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291662.1A CN109931828A (en) | 2019-04-12 | 2019-04-12 | Artificial digging pile blast working well head buffering safeguard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931828A true CN109931828A (en) | 2019-06-25 |
Family
ID=66989799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910291662.1A Pending CN109931828A (en) | 2019-04-12 | 2019-04-12 | Artificial digging pile blast working well head buffering safeguard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108618A (en) * | 2022-01-12 | 2022-03-01 | 南通天路金属构件有限公司 | Steel pressing model retaining wall connecting structure and method for inside of hole pile |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155892A (en) * | 2011-01-10 | 2011-08-17 | 中国建筑第四工程局有限公司 | Method for blasting pile well five-eye conical cut and structure |
| CN202946087U (en) * | 2012-11-27 | 2013-05-22 | 中建三局第三建设工程有限责任公司 | Manual hole-digging pile multifunction protective well cover |
| CN104236405A (en) * | 2014-08-25 | 2014-12-24 | 叶建军 | Building dismounting blasting flexible protection system |
| CN205027219U (en) * | 2015-08-12 | 2016-02-10 | 上海绿地建设(集团)有限公司 | Hole stake blasting construction safety device is dug in manual work |
| CN107063020A (en) * | 2017-04-17 | 2017-08-18 | 贵州新联爆破工程集团有限公司 | A kind of hole stake Excavation blasting flyrock protection device |
| CN107504874A (en) * | 2017-08-27 | 2017-12-22 | 贵州新联爆破工程集团有限公司 | A kind of artificial digging pile blasting protection device |
| CN206803864U (en) * | 2017-06-07 | 2017-12-26 | 浙江华东工程咨询有限公司 | A kind of safety protective mechanisms for open cut explosion |
| CN207472142U (en) * | 2017-11-15 | 2018-06-08 | 西南石油大学 | A kind of well blasting protection device |
| CN208075695U (en) * | 2018-04-20 | 2018-11-09 | 中铁一局集团第四工程有限公司 | A kind of blasting protection device |
| CN108871133A (en) * | 2018-07-18 | 2018-11-23 | 陈斌 | A kind of protective device for pile foundation explosion |
| CN209991886U (en) * | 2019-04-12 | 2020-01-24 | 湖南省第四工程有限公司 | Blasting construction well head protector |
-
2019
- 2019-04-12 CN CN201910291662.1A patent/CN109931828A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155892A (en) * | 2011-01-10 | 2011-08-17 | 中国建筑第四工程局有限公司 | Method for blasting pile well five-eye conical cut and structure |
| CN202946087U (en) * | 2012-11-27 | 2013-05-22 | 中建三局第三建设工程有限责任公司 | Manual hole-digging pile multifunction protective well cover |
| CN104236405A (en) * | 2014-08-25 | 2014-12-24 | 叶建军 | Building dismounting blasting flexible protection system |
| CN205027219U (en) * | 2015-08-12 | 2016-02-10 | 上海绿地建设(集团)有限公司 | Hole stake blasting construction safety device is dug in manual work |
| CN107063020A (en) * | 2017-04-17 | 2017-08-18 | 贵州新联爆破工程集团有限公司 | A kind of hole stake Excavation blasting flyrock protection device |
| CN206803864U (en) * | 2017-06-07 | 2017-12-26 | 浙江华东工程咨询有限公司 | A kind of safety protective mechanisms for open cut explosion |
| CN107504874A (en) * | 2017-08-27 | 2017-12-22 | 贵州新联爆破工程集团有限公司 | A kind of artificial digging pile blasting protection device |
| CN207472142U (en) * | 2017-11-15 | 2018-06-08 | 西南石油大学 | A kind of well blasting protection device |
| CN208075695U (en) * | 2018-04-20 | 2018-11-09 | 中铁一局集团第四工程有限公司 | A kind of blasting protection device |
| CN108871133A (en) * | 2018-07-18 | 2018-11-23 | 陈斌 | A kind of protective device for pile foundation explosion |
| CN209991886U (en) * | 2019-04-12 | 2020-01-24 | 湖南省第四工程有限公司 | Blasting construction well head protector |
Non-Patent Citations (1)
| Title |
|---|
| 彭艺等: "复杂环境下桩井爆破安全防护", 《现代矿业》, no. 8, 20 August 2015 (2015-08-20), pages 185 - 187 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108618A (en) * | 2022-01-12 | 2022-03-01 | 南通天路金属构件有限公司 | Steel pressing model retaining wall connecting structure and method for inside of hole pile |
| CN114108618B (en) * | 2022-01-12 | 2023-02-03 | 南通天路金属构件有限公司 | Steel pressing model protecting wall connecting structure and method for interior of hole pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209991886U (en) | Blasting construction well head protector | |
| CN102011595A (en) | Coal rock tunnel impact retraction energy-absorbing support device | |
| CN108678792B (en) | Movable supporting bone plate supporting structure for roadway | |
| CN109931828A (en) | Artificial digging pile blast working well head buffering safeguard | |
| CN110553560B (en) | Blasting demolition method for building | |
| CN210952879U (en) | Monitoring device for building blasting | |
| CN206053392U (en) | Super High faces side and encorbelments hard protection structure | |
| CN112983118A (en) | Highway construction safety protection system | |
| CN208900122U (en) | A kind of movable support rib slab supporting structure in tunnel | |
| CN207273111U (en) | A kind of anchor nut removal tool | |
| CN216081192U (en) | Be used for engineering supporting beam to demolish blasting flyrock protector | |
| CN112064651B (en) | Collapse rock cushion energy dissipation protection device and construction method thereof | |
| CN112923820B (en) | Perforation charge explosion method suitable for blasting demolition of middle upright column | |
| CN213980620U (en) | Protective cover of power head of underground hydraulic drilling machine | |
| CN212561629U (en) | Be used for interim engineering pile foundation scour prevention device on water | |
| CN209706671U (en) | The drilling of the towering cuboid reinforced concrete structure of directional blasting demolishment is arranged | |
| CN201826852U (en) | Impact abdicating, energy absorbing and supporting device for coal rock laneway | |
| CN207472142U (en) | A kind of well blasting protection device | |
| CN208830219U (en) | Emergency lane passive protection auxiliary system | |
| CN215639114U (en) | Device for inhibiting diffusion of explosive products | |
| CN216130934U (en) | A excavation platform truck for tunnel rockburst section safety construction | |
| CN221722833U (en) | Rock burst protection device | |
| CN213714116U (en) | Gun and quilt composite type protection device for vertical shaft open blasting | |
| CN114909967B (en) | Trailer type explosion-proof device for chimney directional blasting demolition and use method | |
| CN216898570U (en) | Protection device for alternately blasting excavation of cavern |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |