CN104315934A - Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel - Google Patents
Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel Download PDFInfo
- Publication number
- CN104315934A CN104315934A CN201410513884.0A CN201410513884A CN104315934A CN 104315934 A CN104315934 A CN 104315934A CN 201410513884 A CN201410513884 A CN 201410513884A CN 104315934 A CN104315934 A CN 104315934A
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- tunnel
- plate unit
- shock wave
- baffle
- 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
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a prevention device and a prevention method used for blasting air shock waves in a drilling and blasting tunnel. The device comprises a plurality of baffle units arranged on the side wall of the tunnel; the baffle units are arranged on the side wall of the tunnel in a bilateral symmetry manner; each baffle unit comprises a shock-resistant and high temperature-resistant baffle; each baffle is fixedly arranged on the side wall of the tunnel through a switch hinge; each baffle can rotate around the revolution axis of the corresponding switch hinge; each revolution axis is provided with a damper for providing damping for the rotation of the corresponding baffle; each baffle unit can be opened or closed under the action of the corresponding switch hinge, i.e. when blasting is performed on a tunnel face, each baffle unit is in a closed state so as to stop the shock waves; after blasting on the tunnel face is ended, each baffle unit is in an opened state, traffic in the tunnel and other construction cannot be influenced.
Description
Technical field
The present invention relates to the Tunnel Blasting shock wave precautionary measures in a kind of Tunnel, particularly relating to a kind of for solving in Tunnel the preventing mean of construction blasting shock wave and prevention method.
Background technology
In recent years, Chinese national economy is fast-developing, and the passenger and freight day by day expanded proposes challenge to the transportation of China, and this is also the huge opportunity of transportation one of facing simultaneously.Consider economy, the factor such as technology and environment, the construction of bridge tunnel more and more appears among circuit.In the mountain area of transit route process, owing to being subject to the restriction of the mal-conditions such as topographic and geologic, the construction in tunnel often becomes the route even key factor of underground space utilization.And in the design and construction process of numerous railways, vcehicular tunnel, bore explosion facies, for other construction method, there is strong adaptability.Advantages such as the fast and low cost of speed of application and being widely used.Go to blow face with a large amount of explosives in drill bursting construction, to excavate, but explosive can break out out huge energy in the moment of blast from inside, can produce surrounding rock body and surrounding building and destroy, simultaneously, due to narrow space in tunnel, explosive moment quick-fried born energy can make the density of surrounding air, temperature and pressure sharply rise, along with direction, tunnel blazes abroad generation shock wave, shock wave blazes abroad to direction of eating dishes without rice or wine with very high speed, temperature and pressure in the direction of tunnel and excavation.
Macroscopically, shock wave shows as the curved surface of, and its can in communication process, makes sharply to rise through the air pressure of part, density and temperature.On microcosmic, shock wave is that the interaction between interior molecules there occurs change, these changes comprise the change of viscosity and the change of heat conductivity between molecule, and when these change occur too fast time, the energy of these inside has little time to be delivered to distant distance, will make locally acute variation to occur, cause local energy too high.And these high-energy molecule are in the process propagated, various resistance can be run into, comprise tunnel inner wall frictional force and air drag etc., the energy of shock wave is caused to reduce, the interaction force of interior molecules reduces simultaneously, and cause internal pressure to reduce, spread speed is also slowing down gradually, last energy impact wave attenuation is to sound wave, and dissipation is gone out.
In city, when tunnel is built in surrounding city or inhabited mountain area, when selected drill bursting construction excavation, the impact on Adjacent Buildings and resident of the earthquake motion of boring quick-fried generation and shock wave will inevitably be considered, and present design and construction, or do not consider and bore the quick-fried impact on around human settlements and natural environment, or only consider that earthquake motion is on the impact of surrounding, all have ignored the human settlements of shock wave on surrounding and the impact of natural environment that bore quick-fried generation, and shock wave also can have a huge impact surrounding environment, not even lower than the impact of earthquake motion on surrounding environment.
Be no matter bore the shock wave of quick-fried generation or shock wave attenuation after the sound wave that formed, all can produce harmful effect to the human settlements of surrounding and natural environment.First, the shock wave boring quick-fried generation has very high energy, speed, pressure and temperature, shock wave carries rubble on the way and dust in the process propagated, can destroy tunnel inner wall before decaying to sound wave is the directly right environment in facility and hole and building, causes serious injury environment and building.Secondly, suppose that shock wave does not carry the foreign material such as rubble and directly propagates into human settlements residence in communication process, high speed and high-octane shock wave will inevitably be formed the building being blocked in shock motion path and impact, little, shake, greatly then ftracture and even collapse.Again, if shock wave enters nature bad border, high pressure, at a high speed, high temperature and high-octane shock wave will inevitably cause certain injury to vegetation and trees etc., causes the destruction of natural environment.Finally, during explosion and shock wave finally decay produce sound wave, its corresponding noise also can cause great interference to human settlements bad border.
Therefore particularly important to the prevention of construction of explosion generation shock wave, and the harm of shock wave is not considered in the design in present tunnel and construction.
Summary of the invention
Object of the present invention is just to provide to solve the problem a kind of preventing mean for boring Air blast wave in quick-fried Tunnel and prevention method.
In order to achieve the above object, present invention employs following technical scheme:
A kind of preventing mean for boring Air blast wave in quick-fried Tunnel, comprise some baffle plate unit being arranged on tunnel sidewalls, baffle plate unit is symmetrical installation on tunnel sidewalls, baffle plate unit comprises the resistant to elevated temperatures baffle plate of shock resistance, this baffle plate is fixed in tunnel-side by switch hinge, baffle plate can get around the axis of rotation closing hinge, rotating shaft is provided with the rotation that damper is baffle plate and provides damping; Baffle plate unit can be opened or close under the effect of switch hinge, namely when face carries out explosion, is in closed condition, is used for stopping shock wave; After face explosion terminates, be in open mode, do not affected other constructions such as inside is open to traffic.
Described preventing mean, the thick 10cm of described baffle plate, long 300cm, wide is 200cm.
Described preventing mean, between homonymy stream oriented device, gap is 10m.
A kind of prevention method for boring Air blast wave in quick-fried Tunnel, at tunnel sidewalls, some baffle plate unit are installed, baffle plate unit is symmetrical installation on tunnel sidewalls, baffle plate unit comprises the resistant to elevated temperatures baffle plate of shock resistance, this baffle plate is fixed in tunnel-side by switch hinge, baffle plate can get around the axis of rotation closing hinge, rotating shaft is provided with the rotation that damper is baffle plate and provides damping; Baffle plate unit can be opened or close under the effect of switch hinge, namely when face carries out explosion, is in closed condition, is used for stopping shock wave; After face explosion terminates, be in open mode, do not affected other constructions such as inside is open to traffic.
Described prevention method, first, before face explosion, ensure that all baffle plate unit are in closed condition, when face is blasted, at the shock wave that front of tunnel heading produces rapidly high temperature, high pressure and can propagate at a high speed, in shock motion process, due to the stop of baffle plate unit, can there is the rotation of certain angle in baffle plate unit due to the impact of shock wave, now, the part energy of shock wave and damper consumption; Subsequently, after Tunnel Blasting shock motion in the past, under the effect of damper, there is damping rotary in baffle plate unit around the shaft, until the energy ezpenditure that shock wave is delivered on damper is complete, baffle plate unit can be in again state that is static and that close; In shock wave transmittance process, can there is a damping rotary in all baffle plate unit of both sides, tunnel, reaches the object consuming shock wave; Finally, after the onepull end of job, make baffle plate unit be in open mode, provide enough spaces to other inside processings.
Of the present invention is a kind of method endangered for solving constructing tunnel Blasting shock wave, the shock wave that constructing tunnel explosion produces, only have one side freely at one, the space that other each face is all closed, very low at scope of freedom atmospheric pressure relevant explosive place, shock wave will inevitably be propagated outside hole along tunnel, no matter be just prop up or two linings, tunnel inner wall relative smooth, weaken minimum to the shock wave that explosion produces, and for long or super long tunnel, make full use of length of tunnel, increase the resistance of tunnel sidewalls, in the process that Blasting shock wave is propagated at tunnel internal, be subject to the resistance of side wall inwall and weaken, reach the protection to construction blasting shock wave.
The object of the invention is to weaken Tunnel Blasting shock wave to the impact of hole external environment, instead of must eliminate completely, the weakening of single assembly shock wave of the present invention is limited, therefore need to settle multiple device, just can reach the object that shock wave is even eliminated in effective weakening, tunnel is longer, and the device that can settle is more, therefore this device is adapted to major long tunnel especially.The shock wave that Tunnel Blasting produces has the characteristic of High Voltage, high density and high-temperature, in generation in the process blazed abroad, installs at tunnel sidewalls the weakening shock wave that the present invention can be fabulous.In order to cost-saving, reach the object of recycling, avoid the high-octane shock wave of high speed to damage the present invention in communication process, the present invention has very high intensity; Meanwhile, this portion of energy, by the interception of shock wave, by energy transferring to apparatus of the present invention, and consumes eventually through damper, reaches the weakening effect to Blasting shock wave by baffle plate of the present invention; Blasting shock wave has very high temperature, pressure and speed, therefore the present invention does not also lose function while having very high intensity under the condition of HTHP, the characteristic well utilizing damper can be had to consume the energy of shock wave transmission, finally reach the effect weakening shock wave.
The present invention, mainly for long tunnel, installs the present invention in the hole of excavating also supporting, and the present invention is interposed between sidewall installation between certain, take symmetrical installation, as at tunnel cross sectional, Yishanmen is installed, has blocked impact wave propagation, reached the object weakening shock wave; After explosion terminates, the present invention can dismantle the weakening in order to other Tunnel Blasting shock waves, therefore reaches again the object of recycling economy; Distance face is nearer, and shock wave pressure is larger, and temperature is also higher, therefore quantity of the present invention is installed according to designed distance at the side wall that distance face is near, in distance position a little a little further, if shock wave is reduced to below safe coefficient, no longer the present invention can be installed, with cost-saving; The present invention enables when Tunnel Blasting construction, when do not carry out other operations in explosion time, can be closed, to save the space of tunnel internal.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram under buffer system closed condition of the present invention;
Fig. 2 is the plan structure schematic diagram under buffer system of the present invention is subject to shock wave state;
Fig. 3 is the plan structure schematic diagram under buffer system open mode of the present invention;
Fig. 4 is the tunnel cross sectional structural representation under buffer system closed condition of the present invention;
Fig. 5 is that buffer system of the present invention faces structural representation;
1 baffle plate, 2 switch hinges, 3 dampers;
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Referring to figs. 1 to Fig. 5, preventing mean for boring Air blast wave in quick-fried Tunnel of the present invention, comprise some baffle plate unit being arranged on tunnel sidewalls, baffle plate unit is symmetrical installation on tunnel sidewalls, baffle plate unit comprises the resistant to elevated temperatures baffle plate of shock resistance, this baffle plate is fixed in tunnel-side by switch hinge, baffle plate can get around the axis of rotation closing hinge, rotating shaft is arranged the rotation that 3 dampers are baffle plate and damping is provided, switch hinge adopts standard hinge, be welded on baffle plate of the present invention, the installation of damper is specifically determined according to the type of damper, the thick 10cm of baffle plate, long 300cm, wide is 200cm.Tunnel internal limited space, so baffle plate unit of the present invention can be opened or close under the effect of switch hinge, namely when face carries out explosion, the present invention is in closed condition (namely door closedown is fanned in similar left and right two), is used for stopping shock wave; After face explosion terminates, for convenience of other constructing operation of tunnel internal, can make the present invention be in open mode (i.e. similar left and right two fan door open), not affect inside and to be open to traffic etc. that other are constructed.The present invention is in tunnel both walls symmetrical placement, and between homonymy stream oriented device, gap is 10m (as shown in Figure 3), and lay number fixed with concrete condition, specific implementation method is as follows:
First, before face explosion, ensure that all the present invention are in closed condition (as shown in Figure 1), when face is blasted, high temperature is produced rapidly at front of tunnel heading, high pressure and the shock wave that can propagate at a high speed, in shock motion process (as shown in Figure 2), due to the stop of baffle plate unit of the present invention, the rotation (as shown in B-B section baffle plate in Fig. 2) of certain angle can be there is in baffle plate unit due to the impact of shock wave, now, the part energy of shock wave namely absorb by baffle plate of the present invention, accurately, be installed in damper consumption of the present invention.
Subsequently, after Tunnel Blasting shock motion in the past, damping rotary (in as Fig. 2 shown in A-A cross section) can be there is around the shaft in the present invention under the effect of damper, until complete for the energy ezpenditure be delivered on damper from shock wave, the present invention can be in again the state (as shown in C-C cross section in Fig. 2) of closedown of static dawn.In shock wave transmittance process, can there is a damping rotary in all the present invention of both sides, tunnel, reaches the object consuming shock wave.
Finally, after the onepull end of job, can carry out transporting the operations such as native stone and first, now tunnel internal space requirement amount is larger, just need to make the present invention be in open mode (as shown in Figure 3), provide enough spaces to other inside processings.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. one kind for boring the preventing mean of Air blast wave in quick-fried Tunnel, it is characterized in that, comprise some baffle plate unit being arranged on tunnel sidewalls, baffle plate unit is symmetrical installation on tunnel sidewalls, baffle plate unit comprises the resistant to elevated temperatures baffle plate of shock resistance, this baffle plate is fixed in tunnel-side by switch hinge, and baffle plate can get around the axis of rotation closing hinge, rotating shaft is provided with the rotation that damper is baffle plate and provides damping; Baffle plate unit can be opened or close under the effect of switch hinge, namely when face carries out explosion, is in closed condition, is used for stopping shock wave; After face explosion terminates, be in open mode, do not affected other constructions.
2. preventing mean according to claim 1, is characterized in that, the thick 10cm of described baffle plate, long 300cm, and wide is 200cm.
3. preventing mean according to claim 1, is characterized in that, between homonymy two baffle plate unit, gap is 10m.
4. one kind for boring the prevention method of Air blast wave in quick-fried Tunnel, it is characterized in that, at tunnel sidewalls, some baffle plate unit are installed, baffle plate unit is symmetrical installation on tunnel sidewalls, baffle plate unit comprises the resistant to elevated temperatures baffle plate of shock resistance, this baffle plate is fixed in tunnel-side by switch hinge, and baffle plate can get around the axis of rotation closing hinge, rotating shaft is provided with the rotation that damper is baffle plate and provides damping; Baffle plate unit can be opened or close under the effect of switch hinge, namely when face carries out explosion, is in closed condition, is used for stopping shock wave; After face explosion terminates, be in open mode, do not affected other constructions such as inside is open to traffic.
5. prevention method according to claim 4, it is characterized in that, first, before face explosion, ensure that all baffle plate unit are in closed condition, when face is blasted, at the shock wave that front of tunnel heading produces rapidly high temperature, high pressure and can propagate at a high speed, in shock motion process, due to the stop of baffle plate unit, the rotation of certain angle can be there is in baffle plate unit due to the impact of shock wave, now, and the part energy of shock wave and damper consumption; Subsequently, after Tunnel Blasting shock motion in the past, under the effect of damper, there is damping rotary in baffle plate unit around the shaft, until the energy ezpenditure that shock wave is delivered on damper is complete, baffle plate unit can be in again state that is static and that close; In shock wave transmittance process, can there is a damping rotary in all baffle plate unit of both sides, tunnel, reaches the object consuming shock wave; Finally, after the onepull end of job, make baffle plate unit be in open mode, provide enough spaces to other inside processings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513884.0A CN104315934A (en) | 2014-09-30 | 2014-09-30 | Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513884.0A CN104315934A (en) | 2014-09-30 | 2014-09-30 | Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104315934A true CN104315934A (en) | 2015-01-28 |
Family
ID=52371200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410513884.0A Pending CN104315934A (en) | 2014-09-30 | 2014-09-30 | Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104315934A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443121A (en) * | 2018-11-22 | 2019-03-08 | 中国人民解放军军事科学院国防工程研究院 | A kind of spoiler and its tunnel for explosion wave in tunnel of decaying |
| CN110500135A (en) * | 2019-08-15 | 2019-11-26 | 国家电网有限公司 | A kind of tunnel entrance wind shielding structure and its construction method |
| CN113397263A (en) * | 2021-05-19 | 2021-09-17 | 清华大学 | Helmet that personnel's protection was dressed |
| CN115183643A (en) * | 2022-06-21 | 2022-10-14 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock wave of tunnel close to residential area |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692165A (en) * | 2012-04-26 | 2012-09-26 | 中国人民解放军总参谋部工程兵科研三所 | Wall surface orifice plate wave absorber |
| CN103244182A (en) * | 2013-05-17 | 2013-08-14 | 长沙矿山研究院有限责任公司 | Prevention method of air shock wave disaster in mine goaf |
| KR20130116622A (en) * | 2012-04-16 | 2013-10-24 | (주)범양이엔씨 | The direction controlling implement with the vibration cut off in the charge hole to obstruct propagation of blasting vibration, and the blasting method using that implement |
-
2014
- 2014-09-30 CN CN201410513884.0A patent/CN104315934A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130116622A (en) * | 2012-04-16 | 2013-10-24 | (주)범양이엔씨 | The direction controlling implement with the vibration cut off in the charge hole to obstruct propagation of blasting vibration, and the blasting method using that implement |
| CN102692165A (en) * | 2012-04-26 | 2012-09-26 | 中国人民解放军总参谋部工程兵科研三所 | Wall surface orifice plate wave absorber |
| CN103244182A (en) * | 2013-05-17 | 2013-08-14 | 长沙矿山研究院有限责任公司 | Prevention method of air shock wave disaster in mine goaf |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443121A (en) * | 2018-11-22 | 2019-03-08 | 中国人民解放军军事科学院国防工程研究院 | A kind of spoiler and its tunnel for explosion wave in tunnel of decaying |
| CN110500135A (en) * | 2019-08-15 | 2019-11-26 | 国家电网有限公司 | A kind of tunnel entrance wind shielding structure and its construction method |
| CN113397263A (en) * | 2021-05-19 | 2021-09-17 | 清华大学 | Helmet that personnel's protection was dressed |
| CN113397263B (en) * | 2021-05-19 | 2022-08-23 | 清华大学 | Helmet that personnel's protection was dressed |
| CN115183643A (en) * | 2022-06-21 | 2022-10-14 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock wave of tunnel close to residential area |
| CN115183643B (en) * | 2022-06-21 | 2023-11-10 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock waves of tunnels in close vicinity of residential areas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104315934A (en) | Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel | |
| Shin et al. | Effect of blast-induced vibration on existing tunnels in soft rocks | |
| CN204495212U (en) | A kind of preventing mean for boring Air blast wave in quick-fried Tunnel | |
| Zhen et al. | Comparative study on two types of nonpillar mining techniques by roof cutting and by filling artificial materials | |
| Guan et al. | Vibration response and failure modes analysis of the temporary support structure under blasting excavation of tunnels | |
| Liu et al. | Mechanisms of floor heave in roadways adjacent to a goaf caused by the fracturing of a competent roof and controlling technology | |
| Xie et al. | Excavation method of reducing blasting vibration in complicated geological conditions | |
| KR101392158B1 (en) | The direction controlling implement with the vibration cut off in the charge hole to obstruct propagation of blasting vibration, and the blasting method using that implement | |
| Brode | A review of nuclear explosion phenomena pertinent to protective construction | |
| Li et al. | Study on the vibration effect on operation subway induced by blasting of an adjacent cross tunnel and the reducing vibration techniques | |
| Xu | Blasting vibration safety criterion of surrounding rock of a circular tunnel | |
| Fan et al. | Constant resistance and yielding support technology for large deformations of surrounding rocks in the Minxian Tunnel | |
| Chang et al. | The mechanism of rock mass crack propagation of principal stress rotation in the process of tunnel excavation | |
| CN202648554U (en) | Rock mass engineering blasting excavation damping device | |
| Feng et al. | Deformation and failure mechanism of surrounding rock in mining-influenced roadway and the control technology | |
| Wu et al. | Research on the seam formation mechanism of elliptical bipolar linear directional blasting based on the SPH-FEM coupling method | |
| Miao et al. | Research and application of a symmetric bilinear initiation system in rock blasting | |
| Man et al. | Directional Blasting Technology of Slit Charge for Geological Disposal of High‐Level Radioactive Waste | |
| Li et al. | Floor heave controlling technology of deep soft rock roadway | |
| Zhou et al. | Waveform Characteristics of Tunnel Blast Waves and a Wave‐Blocking Method | |
| Wang et al. | Numerical simulation of the dynamic responses and cumulative damage of underground caverns under multiple explosions | |
| Gao et al. | Study on optimization of delay method of wedge cut blasting in tunnel | |
| Man et al. | Frequency spectrum and wavelet packet analyses of blasting vibration signals for different charge structures in blasting peripheral holes | |
| Wang et al. | Stress Analysis of Negative Coal Pillar Gob‐Side Entry and Its Principle of Preventing Rock Burst | |
| CN206617192U (en) | A kind of soft decompression explosion-proof door based on non-newtonian fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |