CN208072381U - A kind of underwater anti-rock burst hardened system - Google Patents
A kind of underwater anti-rock burst hardened system Download PDFInfo
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- CN208072381U CN208072381U CN201721904685.8U CN201721904685U CN208072381U CN 208072381 U CN208072381 U CN 208072381U CN 201721904685 U CN201721904685 U CN 201721904685U CN 208072381 U CN208072381 U CN 208072381U
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- pipe pile
- bridging
- rock burst
- support plate
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Abstract
A kind of underwater anti-rock burst hardened system, including steel-pipe pile(1), it is characterised in that:In steel-pipe pile(1)Front end be provided with " sword point " shape steel disc(2);It facilitates construction, its other side that fixed blade supports by the way of pin joint, it is set to be moved freely in adjustable extent, it is cost-effective, convenient for constructing and haveing breakthrough on construction equipment and construction method, rock burst is effectively prevented using microwave energy using microwave, assists reducing rock strength by microwave irradiation.
Description
Technical field:
The utility model is related to anti-rock burst hardened system, be primarily adapted for use in underwater excavation there are strong rock burst, extremely strong rocks
In the engineerings such as water conservancy and hydropower, traffic and the mine of quick-fried risk.
Background technology:
It is frequently encountered extremely strong or strong rockburst risk during the engineering excavations such as water conservancy and hydropower, traffic and mine.Work as rock mass
When the Large strain of interior accumulation can discharge suddenly, cause strong surrounding rock failure that will be caused greatly to site operation personnel and equipment
Harm, but according to achievement in research both domestic and external and engineer application effect it is found that other than stress-relief blasting method, other constructions
Measure cannot all reach ideal effect.
The supporting rack that construction site uses at present, more random to setting horizontal cross brace, some is not provided with, setting
It can not determine critical load value added, not set up structure and increase correspondence with critical load after horizontal cross brace, scene
It sets up by rule of thumb, on the one hand, cause waste of material cost to increase, on the other hand, security risk, some is caused even to occur great
Safety accident.
At present when steel pipe pile driving construction, the method for welding bridging mostly uses greatly steel-pipe pile is fixed after, carry out Underwater Welding,
Difficulty of construction is substantially improved, and is unfavorable for constructing operation, increases the input of manpower and materials, wastes time, delays the duration.
Steel-pipe pile is because its speed of application is high-quality soon, the advantages that recyclable recycling, is led in foundation pit enclosure and pile foundation engineering
There is boundless application prospect in domain.Various forms of steel sheet piles are long-standing in engineer application field, but in engineering
Still some problems are encountered in practice, for example, rock breaking capacity is obstructed, steel-pipe pile sets initial stage just being shaken with vibration hammer
Appearance can not enter rock, up and down significantly beat and spring back reaction and pile body tilt suddenly, deviation phenomena such as, seriously affect
Steel-pipe pile normal construction.If carrying out plug construction using vibratory drilling method, can shake with a degree of in plugging work progress
It is dynamic, although the measures such as high-frequency hydraulic hammer, which can be used, reduces the influence of vibration, but still it cannot completely eliminate, if using static(al)
Method piling may lead to the lock continuous damage between stake and stake, and pile driving pressure is larger, have some to fill in effect.
Utility model content:
Purpose of utility model:
The utility model provides a kind of underwater anti-rock burst hardened system, the problems of previous the purpose is to solve.
Technical solution:
A kind of underwater anti-rock burst hardened system, including steel-pipe pile (1), it is characterised in that:It is set in the front end of steel-pipe pile (1)
It is equipped with " sword point " shape steel disc (2);The side wall of steel-pipe pile (1) is provided with the bridging support plate (3) of energy opening angle, bridging branch
One end of plate (3) is flexibly connected with steel-pipe pile (1), and the other end can open so that bridging support plate (3) and steel-pipe pile (1) shape
The scissors mouth-shaped of forming V-shape.
Steel-pipe pile (1) side wall is provided with bridging (9), one end of bridging support plate (3) by pin joint bolt (4) with cut
Knife supports (9) connection, and bridging support plate (3) and the pin joint bolt (4) are that axis rotates and forms V-arrangement with steel-pipe pile (1) when use
Scissors mouth-shaped.
The angular range that bridging support plate (3) is formed with steel-pipe pile (1) is at 0 °~90 °.
" sword point " shape steel disc (2) is thick No. 45 steel plates of 25mm of 15cm × 25cm " sword point " shape, wherein to " sword point " direction
Length along the expression in the eyes axially forward of steel-pipe pile (1), " sword point " is 25cm.
The side wall of steel-pipe pile (1) is provided with detachable microwave fracturing device, which includes micro-
Wave source (5), coupling apparatus and wave detector (6), tuner (7) and microwave emitter (8);The delivery outlet of microwave source passes through rectangular waveguide
It is sequentially connected coupling apparatus and wave detector, tuner and transmission cable, the end of transmission cable connects microwave emitter.
Steel-pipe pile (1) uses helix tube.
The underwater anti-rock burst reinforcement means implemented using a kind of above-mentioned underwater anti-rock burst hardened system, feature are existed
In:Steps are as follows for this method:
It (1), should be by crawler belt with the piling machine of Telescopic track mounted on flat solid place by crawler type piling machine
It is installed after expansion;Crawler belt expansion should be carried out in no counterweight;When pile monkey is installed, answered between pile monkey bottom impact block and pile cover
There is certain thickness buffering chock;
(2), steel-pipe pile use helix tube, steel member process when take on the outside of steel-pipe pile bottom weld 10 pieces of 15cm ×
Thick No. 45 steel plates of 25mm of 25cm " sword point " shape;
(3), steel-pipe pile installs detachable microwave fracturing device, and the delivery outlet of wave source is sequentially connected lotus root by rectangular waveguide and closes
The end of device and wave detector, tuner and transmission cable, transmission cable connects microwave emitter;Microwave source is that microwave generator exists
Frequency electromagnetic waves are sent out under the action of high voltage power supply, microwave generator power is adjusted according to construction site demand, with frequency electromagnetic
Wave compares the penetration depth with bigger, and microwave emitter structure is to be coaxially disposed by outer catheter and inner catheter, in outer catheter and
Dielectric material is set between inner catheter, axial elongated crack is equipped on outer catheter, microwave is sent out from elongated crack;Wherein
Dielectric material is ceramics, quartz, organic glass microwave transparency material;
(4), it after steel-pipe pile welding " sword point " shape steel disc, also needs to weld bridging in advance, bridging side is welded on steel pipe
In stake, bridging lower part is by the way of in advance pin joint, the size and appearance of stringent control welding, effective guarantee bridging,
The welding quality of lateral and bracket key position, bridging are arbitrarily adjusted according to required subtended angle in 0 °~90 °, weld lower part
Pinned locations determine that by carrying out the depth of water to stake position in advance, coating is estimated, in conjunction with previous geology according to stake position actual conditions
Steel-pipe pile normally enters rock depth, anti-to release lower part pinned locations, to ensure the smooth linking on bridging top;
(5), crawler type piling machine is connect with " sword point " the shape Novel steel pile pile being welded, after steel-pipe pile connects, is opened
Dynamic endless track installation, upper part Working mechanism use three fulcrum structures, steel-pipe pile are disposed vertically, pile foundation is slowly squeezed into.
In rock break-off process, Piling speed is changed according to geology difference, trepanning must be correct, first starts slush pump and turns
Disk starts to creep into, suitable control drilling depth after mud enters drilling certain amount, using decompression drilling when drilling, to avoid or
Reduce inclined hole, curved hole and reaming phenomenon in hole drilling deslagging, carry cone except soil or when stopping boring for some reason, keep mud and casing top surface phase
The specific gravity of mud and viscosity of gentle requirement, with avalanche prevention hole;Drilling is strictly constructed by drilling operation method, avoids collapsing as possible
Hole, inclined hole, reaming, shrinkage cavity phenomenon occur.Advantageous effect:
The utility model provides a kind of underwater anti-rock burst hardened system, which is in order to enable steel-pipe pile is in foundation pit enclosure
And these limitations are overcome in pile foundation, and then the insertion construction method and construction equipment of this kind of building enclosure are done further
It improves.
In order to which bridging side is welded in the utility model in advance, facilitate construction, is fixed and cut by the way of pin joint
The other side of knife support, makes it be moved freely in adjustable extent, cost-effective, convenient for construction and in construction equipment and construction party
It has breakthrough in method, rock burst is effectively prevented using microwave energy using microwave, assist reducing rock strength by microwave irradiation.
Description of the drawings:
Fig. 1 is the structural scheme of mechanism of utility model;
Fig. 2 is the usage state diagram of the utility model.
Specific implementation mode:
The utility model provides a kind of underwater anti-rock burst hardened system, including steel-pipe pile 1, is arranged in the front end of steel-pipe pile 1
There is " sword point " shape steel disc 2;The side wall of steel-pipe pile 1 be provided with can opening angle bridging support plate 3, the one of bridging support plate 3
End is flexibly connected with steel-pipe pile 1, and the other end can open so that bridging support plate 3 forms the scissors degree of lip-rounding of V-arrangement with steel-pipe pile 1
Shape.
1 side wall of steel-pipe pile is provided with bridging 9, one end of bridging support plate 3 is connected by pin joint bolt 4 and bridging 9
It connects, bridging support plate 3 and the pin joint bolt 4 are that axis rotates and forms the scissors mouth-shaped of V-arrangement with steel-pipe pile 1 when use.
The angular range that bridging support plate 3 is formed with steel-pipe pile 1 is at 0 °~90 °.
" sword point " shape steel disc 2 is thick No. 45 steel plates of 25mm of 15cm × 25cm " sword point " shape, wherein to " sword point " direction edge
The length of the expression in the eyes axially forward of steel-pipe pile 1, " sword point " is 25cm.
The side wall of steel-pipe pile 1 is provided with detachable microwave fracturing device, which includes microwave
Source 5, coupling apparatus and wave detector 6, tuner 7 and microwave emitter 8;The delivery outlet of microwave source is sequentially connected lotus root by rectangular waveguide
The end of clutch and wave detector, tuner and transmission cable, transmission cable connects microwave emitter.
The utility model is further illustrated below:
Each steel-pipe pile lower weld " sword point " shape steel plate, steel-pipe pile just occur not entering at the initial stage that sets of being shaken with vibration hammer
Rock, up and down significantly beat and spring back reaction and pile body tilt suddenly, deviation phenomena such as, it is normal to seriously affect steel-pipe pile
Construction.After slinging steel-pipe pile again, it is found that pile top side inwardly twists, the phenomenon that oblique section uphill side occur.
Bridging using [20a channel steels, lower part pinned locations according to stake position actual conditions determine, by advance to stake position into
The row depth of water, coating are known the real situation, and in conjunction with previous geology steel-pipe pile normally enter rock depth, anti-to release lower part pinned locations, to protect
Demonstrate,prove the smooth linking on bridging top.
One end of bridging is fixed to steel-pipe pile, and the other end can be more convenient for certainly with steel-pipe pile at the angle between 0 °~90 °
The angle welded by the adjusting other end realizes free subtended angle in allowable range angle under water.Bridging lower part uses sells in advance
The mode connect, the size and appearance of stringent control welding, the welding of the key positions such as effective guarantee bridging, lateral and bracket
Quality, bridging can arbitrarily be adjusted according to required subtended angle in 0 °~90 °.
Steel-pipe pile uses helix tube, and to reach to greatest extent into rock effect, steel member is taken when processing outside steel-pipe pile bottom
Thick No. 45 steel plates of 25mm that 10 pieces of 15cm × 25cm " sword point " shape is welded in side carry out the vibrated reinforcement in stake bottom, are lifted into rock degree.
Crawler type piling machine uses endless track installation, and it is mobile flexibly in place convenient to have, and electric appliance hydraulic pressure is all adopted in addition
It is easy to operate with centralized control, reduce the labor intensity of worker.Top Working mechanism uses three fulcrum structures, mobile in place
Rapidly, safety is stablized, and construction efficiency is high.It is high-quality.The a variety of equipments of adapted, coiling electric motor rheostatic speed regulation meet different holes
Requirement of the diameter grouting to promotion speed.Pile frame frame is steady, and small, the extension complete machine working time is impacted to complete machine structure.
Detachable microwave fracturing device, the delivery outlet of wave source are sequentially connected coupling apparatus and wave detector, tune by rectangular waveguide
The end of orchestration and transmission cable, transmission cable connects microwave emitter.Microwave radiation is carried out to advance borehole using microwave energy,
So that drilling country rock presplitting is achieved the effect that stress release, effectively prevent rock burst, reduces rock strength.
In use, crawler type piling machine is mounted on flat solid place should will be carried out with the piling machine of Telescopic track
It is installed after band expansion.Crawler belt expansion should be carried out in no counterweight.When pile monkey is installed, between pile monkey bottom impact block and pile cover
There should be certain thickness buffering chock.
Steel-pipe pile uses helix tube, steel member to take 10 pieces of 15cm × 25cm " swords of welding on the outside of steel-pipe pile bottom when processing
Thick No. 45 steel plates of 25mm of point " shape, realization reach to greatest extent into rock effect, make the vibrated reinforcement in a bottom, improve rock breaking capacity, carry
Rise up into rock degree.
Steel-pipe pile installs detachable microwave fracturing device, the delivery outlet of wave source by rectangular waveguide be sequentially connected coupling apparatus and
The end of wave detector, tuner and transmission cable, transmission cable connects microwave emitter.Microwave source is microwave generator in high pressure
Frequency electromagnetic waves are sent out under the action of power supply, microwave generator power can be adjusted according to construction site demand, with frequency electromagnetic
Compared to the penetration depth with bigger, it is more suitable for live broken rock equipment.Microwave emitter structure is by outer catheter and inner catheter
Coaxial arrangement, is arranged dielectric material between outer catheter and inner catheter, is equipped with axial elongated crack on outer catheter, microwave from
It is sent out in elongated crack.Wherein dielectric material is the microwave transparencies materials such as ceramics, quartz, organic glass.
After steel-pipe pile welding " sword point " shape steel disc, also needing to weld bridging in advance, bridging side is welded on steel-pipe pile,
Bridging lower part is by the way of in advance pin joint, the size and appearance of stringent control welding, effective guarantee bridging, lateral and
The welding quality of the key positions such as bracket, bridging can arbitrarily be adjusted according to required subtended angle in 0 °~90 °, weld lower pin
It connects position to be determined according to stake position actual conditions, by carrying out the depth of water to stake position in advance, coating is estimated, in conjunction with previous geology steel
Pile pile normally enters rock depth, anti-to release lower part pinned locations, to ensure the smooth linking on bridging top.
Crawler type piling machine is connect with " sword point " the shape Novel steel pile pile being welded, after steel-pipe pile connects, starts and carries out
Band running gear, upper part Working mechanism use three fulcrum structures, and mobile in place rapid, safety is stablized, and construction efficiency is high, matter
It measures.Steel-pipe pile is disposed vertically, slowly squeezes into pile foundation, it is steady that crawler type piling pile erects frame, complete machine structure is impacted it is small,
Extend the complete machine working time.
In rock break-off process, can according to geology difference change Piling speed trepanning must be correct, first start slush pump and
Turntable can start to creep into, suitable control drilling depth after mud enters drilling certain amount.Using decompression drilling when drilling, to keep away
Exempt from or reduce inclined hole, curved hole and reaming phenomenon.In hole drilling deslagging, cone is carried except soil or when stopping boring for some reason, keeps mud and casing top
The specific gravity of mud and viscosity of the mutually gentle requirement in face, with avalanche prevention hole.Drilling is strictly constructed by drilling operation method, is avoided as possible
Collapse hole, inclined hole, reaming, shrinkage cavity phenomena such as occur.
Claims (6)
1. a kind of underwater anti-rock burst hardened system, including steel-pipe pile(1), it is characterised in that:In steel-pipe pile(1)Front end be provided with
" sword point " shape steel disc(2);In steel-pipe pile(1)Side wall be provided with can opening angle bridging support plate(3), bridging support plate
(3)One end and steel-pipe pile(1)Flexible connection, the other end can open so that bridging support plate(3)With steel-pipe pile(1)Form V
The scissors mouth-shaped of shape.
2. a kind of underwater anti-rock burst hardened system according to claim 1, it is characterised in that:In steel-pipe pile(1)Side wall is set
It is equipped with bridging(9), bridging support plate(3)One end pass through pin joint bolt(4)With bridging(9)Connection, bridging when use
Support plate(3)With the pin joint bolt(4)For axis rotation and and steel-pipe pile(1)Form the scissors mouth-shaped of V-arrangement.
3. a kind of underwater anti-rock burst hardened system according to claim 1 or 2, it is characterised in that:Bridging support plate(3)With
Steel-pipe pile(1)The angular range of formation is at 0 ° ~ 90 °.
4. a kind of underwater anti-rock burst hardened system according to claim 1 or 2, it is characterised in that:" sword point " shape steel disc(2)
For thick No. 45 steel plates of 25mm of 15cm × 25cm " sword point " shape, wherein to " sword point " direction along steel-pipe pile(1)It is axial to
The height of preceding extension, " sword point " is 25cm.
5. a kind of underwater anti-rock burst hardened system according to claim 1, it is characterised in that:In steel-pipe pile(1)Side wall
It is provided with detachable microwave fracturing device, which includes microwave source(5), coupling apparatus and wave detector(6),
Tuner(7)And microwave emitter(8);The delivery outlet of microwave source is sequentially connected coupling apparatus and wave detector, tune by rectangular waveguide
The end of orchestration and transmission cable, transmission cable connects microwave emitter.
6. a kind of underwater anti-rock burst hardened system according to claim 1, it is characterised in that:Steel-pipe pile(1)Using spiral
Pipe.
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CN108149677A (en) * | 2017-12-29 | 2018-06-12 | 中交路桥北方工程有限公司 | A kind of underwater anti-rock burst hardened system |
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