CN104775355B - A kind of construction method of the bridge pier Semen Jujubae crashproof system of type compound - Google Patents

A kind of construction method of the bridge pier Semen Jujubae crashproof system of type compound Download PDF

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Publication number
CN104775355B
CN104775355B CN201510148280.5A CN201510148280A CN104775355B CN 104775355 B CN104775355 B CN 104775355B CN 201510148280 A CN201510148280 A CN 201510148280A CN 104775355 B CN104775355 B CN 104775355B
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type
collision
power consumption
outside
semen jujubae
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CN104775355A (en
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李博渊
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Xian University of Science and Technology
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Xian University of Science and Technology
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
    • E02B3/26—Fenders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Ocean & Marine Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound, the crashproof system of its compound includes being laid in the prepressing type anticollision device, collision-prevention device outside bridge pier and is sleeved on the floatation type peripheral protective device outside prepressing type anticollision device, collision-prevention device；Being shaped as date core shaped and be formed by connecting by multiple anticollision boxes floated on the water surface of floatation type peripheral protective device；Prepressing type anticollision device, collision-prevention device includes one or more Semen Jujubae type anti-collision structure, Semen Jujubae type anti-collision structure includes outer cofferdam and is laid in the power consumption layer formed inside outer cofferdam and by multiple power consumption circles, outer cofferdam is date core shaped, power consumption circle include through precompressed formed elastic ring and be sleeved on the oversheath outside elastic ring；Its construction method includes step: one, divergence putting up platform；Two, parts transport and put in place；Three, fixture construction outside bridge pier；Four, prepressing type anticollision device, collision-prevention device construction；Five, floatation type peripheral protective device construction.The present invention is reasonable in design, easy construction and result of use good, bridge pier effectively can be protected.

Description

A kind of construction method of the bridge pier Semen Jujubae crashproof system of type compound
Technical field
The invention belongs to bridge security guard technology field, especially relate to the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound.
Background technology
Along with rapid economic development, shipping business waterborne prosperity gradually is got up, and the boats and ships of water sailing get more and more, and ship collision accident happens occasionally especially, causes great economic loss accordingly.Nowadays, in Transport Facility Construction process, the requirement of traffic safety facilities is increasingly stricter, and wherein in water, the anti-collision facility of bridge pier is particularly important a kind of safety protection facility.So-called bridge-collision-avoidance technology; it is and prevents bridge by tide walker or ship collision; and reach to avoid or reduce bridge and boats and ships because clashing into the damage being subject to and hull damage causes the purpose such as accident generation of boats and ships leakage polluted-water environment, the Anti-bumping protection technology taked.But at present; the bridge-collision-avoidance facility adopted is based on the principle design of energy absorption, momentum buffering more; though rigidity is enough; but flexibility existing defects; deficiency is considered in protection boats and ships, change boats and ships direction, the power of unloading of taking advantage of other's power etc.; thus anti-collision effect is not so good, the traffic protection limited use played, thus result in the bottleneck of nowadays bridge-collision-avoidance facility development.
Summary of the invention
The technical problem to be solved is in that for above-mentioned deficiency of the prior art, it is provided that a kind of bridge pier Semen Jujubae crashproof system of type compound, and its simple in construction, reasonable in design and easy construction, result of use are good, can bridge pier effectively be protected.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of bridge pier Semen Jujubae crashproof system of type compound, it is characterized in that: include being laid in the prepressing type anticollision device, collision-prevention device outside bridge pier and be sleeved on the floatation type peripheral protective device outside described prepressing type anticollision device, collision-prevention device, described bridge pier be in water pier and its be positioned at the middle inside of described prepressing type anticollision device, collision-prevention device；
Described floatation type peripheral protective device be shaped as date core shaped and it is formed by connecting by multiple anticollision boxes floated on the water surface, multiple described anticollision boxes are respectively positioned in same level and are attached by removable connector between adjacent two described anticollision boxes；
Described prepressing type anticollision device, collision-prevention device includes one or more Semen Jujubae type anti-collision structure, the structure of multiple described Semen Jujubae type anti-collision structures all identical and its be laid in from the inside to the outside outside bridge pier；Described Semen Jujubae type anti-collision structure includes bottom and inserts in riverbed or sea bed and in vertically to the outer cofferdam laid and one or more power consumption layer being laid in inside outer cofferdam, the shape of cross section in described outer cofferdam is date core shaped, the structure of multiple described power consumption layers all identical and its from top to bottom lay, described power consumption layer includes multiple power consumption circle being laid in same level, described power consumption circle include through precompressed formed elastic ring and be sleeved on the oversheath outside described elastic ring；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the power consumption circle of described Semen Jujubae type anti-collision structure is fixed between its outer cofferdam and lateral wall of bridge pier, and described floatation type peripheral protective device is set in outside the outer cofferdam of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the Semen Jujubae type anti-collision structure being positioned at inner side in multiple described Semen Jujubae type anti-collision structures is inner side anti-collision structure, in multiple described Semen Jujubae type anti-collision structures, the Semen Jujubae type anti-collision structure except the anti-collision structure of inner side is outside anti-collision structure, the described power consumption layer of described inner side anti-collision structure is fixed between outer cofferdam and the lateral wall of bridge pier, the described power consumption layer of described outside anti-collision structure is fixed between adjacent two outer cofferdam, described floatation type peripheral protective device is set in outside the outer cofferdam being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure；The lateral wall of described bridge pier and the outer cofferdam of Semen Jujubae type anti-collision structure are provided with multiple fixture that power consumption circle is fixed.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, it is characterized in that: described floatation type peripheral protective device be shaped as nose circle shape, and the shape of cross section in outer cofferdam is nose circle shape: the spacing between the outer cofferdam that described bridge pier is adjacent with outside it and between adjacent two outer cofferdam is Φ 0.3m～Φ 3m.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, is characterized in that: described elastic ring is rubber ring or the steel strand wires circle formed by steel strands wound.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, it is characterized in that: described floatation type peripheral protective device also includes multiple spacing earth anchor that respectively multiple described anticollision boxes carried out, each described anticollision box carries out being attached each through being connected rope between spacing earth anchor with to it；In described floatation type peripheral protective device, the quantity of included anticollision box is more than 20；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the multiple described anticollision box in described floatation type peripheral protective device is all close to outside the outer cofferdam of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the multiple described anticollision box in described floatation type peripheral protective device is all close to outside the outer cofferdam being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, is characterized in that: described outer cofferdam is by the cofferdam of composite plate machine-shaping, described composite plate includes the carbon fiber layer on steel plate and two outboard sidewalls being laid in described steel plate respectively；Described anticollision box is processed by foam metal plate.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, is characterized in that: the height that in described floatation type peripheral protective device, multiple described anticollision boxes surface is 2m～3m；Described removable connector includes connecting chain and two connection axles being separately mounted to connect chain two ends, the lateral wall, left and right of each described anticollision box is provided with one for connecting the axle sleeve that axle is installed；Described axle sleeve is laid along the central axis of residing anticollision box, and described axle sleeve includes multiple sleeve being from top to bottom laid on same vertical curve.
Above-mentioned a kind of bridge pier Semen Jujubae crashproof system of type compound, is characterized in that: Semen Jujubae type anti-collision structure adjacent with bridge pier in described prepressing type anticollision device, collision-prevention device is interior Semen Jujubae type anti-collision structure；In described interior Semen Jujubae type anti-collision structure, the outside of each power consumption circle is provided with precompressed fixture, is provided with precompressed fixture outside the power consumption circle that the length direction of described outside anti-collision structure is laid；Described precompressed fixture is made up of two holders being clamped in inside and outside power consumption circle, is attached by multiple securing members between two described holders, and all has multiple installing hole installed for securing member respectively on two described holders.
Meanwhile, the invention also discloses the bridge pier crashproof system construction method of Semen Jujubae type compound that a kind of method step is simple, reasonable in design and realization is convenient, construction effect is good, it is characterised in that the method comprises the following steps:
Step one, divergence putting up platform: outside bridge pier, set up the divergence platform for the described Semen Jujubae crashproof system of type compound of constructing；
Step 2, parts transport and put in place: by each parts of the constructed Semen Jujubae crashproof system of type compound of machine-shaping in advance, be all transported on described divergence platform；
Fixture construction outside step 3, bridge pier: the installation position according to the quantity of power consumption circle included in described Semen Jujubae type anti-collision structure adjacent with bridge pier in the constructed Semen Jujubae crashproof system of type compound and each power consumption circle, lays multiple described fixture on the lateral wall of bridge pier；
Step 4, prepressing type anticollision device, collision-prevention device are constructed: the described prepressing type anticollision device, collision-prevention device of the constructed Semen Jujubae crashproof system of type compound is constructed；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, work progress is as follows:
Step 4011, outer cofferdam construction and draw water: is constructed in the outer cofferdam of described Semen Jujubae type anti-collision structure；After having constructed, pumping equipment is adopted to be extracted out by the water retained inside outer cofferdam；
Step 4012, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of power consumption circle included in described Semen Jujubae type anti-collision structure and each power consumption circle, on the medial wall in the outer cofferdam constructed in step 4011, lay multiple described fixture；
Step 4013, power consumption circle installation: the installation position according to the quantity of power consumption circle included in described Semen Jujubae type anti-collision structure and each power consumption circle, and by described fixture, each power consumption circle in described Semen Jujubae type anti-collision structure is both secured between outer cofferdam and the lateral wall of bridge pier constructed in step 4011；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, from the inside to the outside multiple described Semen Jujubae type anti-collision structures being constructed respectively, work progress is as follows:
Step 4021, inner side anti-collision structure are constructed: the method described in step 4011 to step 4013, complete the work progress of inner side anti-collision structure in described prepressing type anticollision device, collision-prevention device；
Step 4022, outer cofferdam external fixator are constructed: the installation position according to the quantity of power consumption circle included in the outside anti-collision structure adjacent with described inner side anti-collision structure and each power consumption circle, on the lateral wall in the outer cofferdam constructed in step 4021, lay multiple described fixture；
Step 4023, outside anti-collision structure are constructed, and process is as follows:
Step 40231, outer cofferdam construction and draw water: is constructed in the outer cofferdam of anti-collision structure outside currently being constructed；After having constructed, pumping equipment is adopted to be extracted out by the water retained between outer cofferdam adjacent with inside it for outer cofferdam of currently being constructed；
Step 40232, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of power consumption circle included in outside anti-collision structure of currently being constructed and each power consumption circle, on the medial wall in the outer cofferdam constructed in step 40231, lay multiple described fixture；
Step 40233, power consumption circle installation: the installation position according to the quantity of power consumption circle included in outside anti-collision structure of currently being constructed and each power consumption circle, and pass through described fixture, each power consumption currently constructed in the anti-collision structure of outside is enclosed between the outer cofferdam that the outer cofferdam being both secured to construct in step 40231 is adjacent with inside it；
Step 4024, judge whether described prepressing type anticollision device, collision-prevention device has constructed: when judging to show that described prepressing type anticollision device, collision-prevention device has been constructed, enter step 5；Otherwise, return step 4023, anti-collision structure outside the next one is constructed；
Step 5, floatation type peripheral protective device are constructed: outside the described prepressing type anticollision device, collision-prevention device constructed in step 4, the floatation type peripheral protective device of the constructed Semen Jujubae crashproof system of type compound is constructed.
Said method, it is characterized in that: the power consumption circle in described prepressing type anticollision device, collision-prevention device includes lasting prepressing type power consumption circle and non-continuous prepressing type power consumption circle two types, the described prepressing type power consumption circle that continues has the power consumption circle of precompressed fixture for arranged outside, and in described prepressing type anticollision device, collision-prevention device, the power consumption circle except described lasting prepressing type power consumption circle is described non-continuous prepressing type power consumption circle；The described prepressing type power consumption circle arranged outside that continues has precompressed fixture, described precompressed fixture is made up of two holders being clamped in inside and outside power consumption circle, it is attached by multiple securing members between two described holders, and two described holders all have multiple installing hole installed for securing member respectively；
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when described lasting prepressing type power consumption circle is carried out installation, process is as follows:
Step I, precompressed fixture are installed: by the two of precompressed fixture described holders, are installed on respectively inside and outside power consumption circle；
Step II, precompressed: adopt precompressed mechanism the spacing between in step I two described holders is compressed, and compression put in place after, adopt multiple described securing member to be fastenedly connected by two described holders and be integrated, now power consumption circle be installed in precompressed fixture；
Step III, power consumption circle are installed: by the power consumption circle described in step II together with the precompressed fixture being installed on outside it, be installed between outer cofferdam and the lateral wall of bridge pier or between adjacent two outer cofferdam；Further, by described fixture two described holders of precompressed fixture are separately fixed at outer cofferdam with on bridge pier or on adjacent two outer cofferdam；Then, unclamp in step II and two described holders are fastenedly connected the multiple described securing member being integrated；
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when circle that described non-continuous prepressing type is consumed energy carries out installation, process is as follows:
Step, precompressed fixture are installed: by the two of precompressed fixture described holders, are installed on respectively inside and outside power consumption circle；
Step, precompressed: adopt precompressed mechanism the spacing between in step two described holders is compressed, and compression put in place after, adopt multiple described securing member to be fastenedly connected by two described holders and be integrated, complete power consumption circle pre-compaction process；
Step, power consumption circle are installed: be arranged between outer cofferdam and the lateral wall of bridge pier or between adjacent two outer cofferdam by the power consumption circle after precompressed in step, and in installation process, remove precompressed fixture, and by described fixture by power consumption circle inside and outside be separately fixed at outer cofferdam with on bridge pier or on adjacent two outer cofferdam.
Said method, is characterized in that: step II and when carrying out precompressed in step, all carries out precompressed on pre-flattening bench；Described precompressed mechanism is the hydraulic jack laid in level；
Described pre-flattening bench includes horizontal stand and is positioned at the limiting stand above horizontal stand side, one holder outer end of described precompressed fixture is propped up and is withstood on limiting stand, another holder outer end withstanding on precompressed fixture is propped up on the piston rod top of hydraulic jack, and pads equipped with push plate between another holder outer end of the piston rod top of hydraulic jack and precompressed fixture；The hydraulic cylinder body of described hydraulic jack is fixed on above the opposite side of horizontal stand；
Being positioned at outermost outer cofferdam in prepressing type anticollision device, collision-prevention device described in step 4 is cofferdam, outside；
The device of floatation type peripheral protective described in step 5 also includes multiple spacing earth anchor that respectively multiple described anticollision boxes carried out, and each described anticollision box carries out being attached each through being connected rope between spacing earth anchor with to it；
When step 5 carries out the construction of floatation type peripheral protective device, first pass through described removable connector to be connected as one by multiple described anticollision boxes, again through temporary fixing piece or adhesive glue, multiple described anticollision boxes are fixed on cofferdam, described outside, simultaneously by connect rope by each anticollision box with it carried out spacing earth anchor be connected.
The present invention compared with prior art has the advantage that
1, the crashproof architecture of compound adopted is simple, reasonable in design and input cost is low.
2, the crashproof system of compound adopted mainly is made up of the prepressing type anticollision device, collision-prevention device being laid in outside bridge pier and the floatation type peripheral protective device being sleeved on outside prepressing type anticollision device, collision-prevention device, it is provided with multiple-protection facility, wherein floatation type peripheral protective device is exterior protection facility, and prepressing type anticollision device, collision-prevention device is internal Protection facility, and in prepressing type anticollision device, collision-prevention device, the quantity of Semen Jujubae type anti-collision structure is adjustable.Simultaneously, floatation type peripheral protective device and each Semen Jujubae type anti-collision structure are the date core shaped that narrow centre, two is wide, so make upstream face and the back side relative narrower of the crashproof system of compound, and bridge pier position is the middle part of Semen Jujubae, relatively thick, so both optimizing the hydraulic characteristic of bridge pier, increase again the protection distance on direction along ng a path, during for colliding, floatation type peripheral protective device and each Semen Jujubae type anti-collision structure provide bigger deflection yoke.
3, the floatation type peripheral protective apparatus structure adopted is simple, reasonable in design and processing and simple installation, result of use good, floatation type peripheral protective device is formed by connecting by multiple anticollision boxes, when keeping in repair after colliding, only the anticollision box changing destroyed need to be replaced, and do not occur the anticollision box destroyed can be continuing with after linking with the new crashproof water tank changed；Simultaneously as anticollision box is made up of foam metal plate, when colliding, can directly occur elastic deformation in order to cushion momentum.Owing to floatation type peripheral protective device is in floating state, and each anticollision box is connected with earth anchor by connecting rope, in use procedure, the effect utilizing gravity or buoyancy makes buoyancy aid (i.e. anticollision box) move the frictional force of generation under impulsive contact force effect along seabed from poised state to being tightened up reducing power produced by state, earth anchor and connect the elastic force of rope and deformation force acting all can in order to absorb the shock kinetic energy of boats and ships, reduce speed of the ship in metres per second, until boats and ships barred, thus floatation type peripheral protective device is the adjustable displacement in the position crashproof component of type.
4, the prepressing type anticollision device, collision-prevention device simple in construction that adopts, reasonable in design and result of use good, practical value is high, in prepressing type anticollision device, collision-prevention device, the quantity of Semen Jujubae type anti-collision structure is adjustable, each Semen Jujubae type anti-collision structure all includes bottom and inserts in riverbed or sea bed and in vertically to the outer cofferdam laid and one or more power consumption layer being laid in inside outer cofferdam, and so each Semen Jujubae type anti-collision structure is respectively provided with good anti-collision effect.
5, the outer cofferdam simple in construction that adopts, reasonable in design and easy construction, result of use are good, can not only provide a water-less environment for internal power consumption circle, it is ensured that the anti-collision effect of power consumption circle, and can effectively strengthen anti-collision effect.Composite plate used by outer cofferdam fully in conjunction with the corrosion-resistant and tensile property that the collision dynamics performance of steel plate excellence and carbon fibre material are excellent, can improve service life.Owing to outer cofferdam is date core shaped, wide in the middle of two is narrow, and owing to composite plate has higher-strength, blastic deformation is less；Simultaneously, when boats and ships collide, while there is large deformation in the power consumption circle within outer cofferdam, impact force is made to produce cross component, promote fore to turn to, boats and ships only can peripherally sliding before lateral, weir under self kinetic energy effect so that major part kinetic energy remains on boats and ships, displaced the ship shock load positive effect to the crashproof system of compound, effectively displaced the effect of the direction of impact force.
6, the Semen Jujubae type anti-collision structure adopted is arranged independent of the pier shaft of bridge pier, and all insert the bottom bottom the outer cofferdam of each Semen Jujubae type anti-collision structure, when being subject to ship collision, under impact force effect, the sheet pile being fixed on the bottom loosens, the component bending deformation of outer cofferdam and boats and ships, break and collapse, and the outer cofferdam power consumption circle internal with it fully rubs and be deformed, thus reaching a large amount of purpose absorbing and clashing into kinetic energy.Meanwhile, when the quantity of Semen Jujubae type anti-collision structure is multiple, multiple Semen Jujubae type anti-collision structures are laid and common coordinative role from the inside to the outside, can be effectively improved shock kinetic energy absorption purpose.
7, the power consumption coil structures adopted is simple, reasonable in design and processing and fabricating and precompressed is easy, result of use is good, this power consumption circle is flexible protective component, by damping energy dissipation principle, impact load is cushioned, there is the advantages such as counter-force is little, displacement is big, energy consumption characters is obvious, multiple power consumption circle combineds effect can effectively consume impact kinetic energy, plays the effect of " unloading " power.
8, the power consumption circle adopted is except the cushioning effect with damping energy dissipation, also because of in advance through precompressed, thus produced prestressing force effect after precompressed can be played, when the impact load of boats and ships is delivered to power consumption circle, the power consumption circle of precompressed can give one deboost of boats and ships.
9, the crashproof system result of use of compound adopted is good and practical value high; bridge pier effectively can be protected, and boats and ships effectively can be protected, when boats and ships come towards bridge pier collision; boats and ships are pulled by outermost floatation type peripheral protective device, slow down ship speed；When the speed of a ship or plane slows down, the outer cofferdam again through date core shaped changes ship course, and by the damping action of the circle that consumes energy, constantly consumes boats and ships kinetic energy.So, under the combined effect with Semen Jujubae type anti-collision structure of the floatation type peripheral protective device, can effectively reduce the bridge pier counteracting force size to boats and ships during ship collision bridge pier, and the direction of this counteracting force can be adjusted, it is thus possible to effectively reduce the dynamics that boats and ships are destroyed by counteracting force, avoiding ship to ruin people to die, the tragedy that machine oil leaks outside occurs.To sum up, the crashproof system of compound adopted effectively Conjugative tiansfer impact load, energy absorption, momentum can cushion these three mechanism, by protection methods such as direct elastic deformation, displacement variation, compression set, change Impact Load direction, flexible damping energy dissipations, set up combined type pier anticollision facility, can effectively alleviate ship collision, especially large-scale and that super-huge boats and ships are to bridge pier destruction, reduces the ship collision injuries to bridge pier by unloading, delay, inhale, push away four steps.
10, construction method step simple, reasonable in design and realize convenient, construction effect is good, short construction period.And, the precompressed mechanism simple in construction that adopted, reasonable in design and pre-compaction process control easy, pre-compressed effect is good, and the precompressed clamp structure adopted is simple, reasonable in design and processing and fabricating is easy, result of use is good, the power consumption circle of lasting prepressing type power consumption circle can be carried out lasting precompressed, and the power consumption of non-continuous prepressing type can be carried out simplicity, quick precompressed.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the planar structure schematic diagram of the present invention the adopted Semen Jujubae crashproof system of type compound.
Fig. 2 is the facade structures schematic diagram of the present invention the adopted Semen Jujubae crashproof system of type compound.
Fig. 3 is the adopted anticollision box of the present invention and the assembling schematic diagram being connected axle.
Fig. 4 is the structural representation of the adopted precompressed fixture of the present invention.
Fig. 5 adopts the present invention that power consumption is enclosed preloading condition schematic diagram when carrying out precompressed.
Construction method FB(flow block) when Fig. 6 is adopt the present invention that the Semen Jujubae crashproof system of type compound is constructed.
Description of reference numerals:
1 bridge pier；2-1 anticollision box；2-21 connects chain；
2-22 connects axle；2-23 sleeve；2-3 earth anchor；
2-4 connects rope；The outer cofferdam of 3-1；3-2 consumes energy circle；
4 precompressed fixtures；4-1 securing member；4-2 installing hole；
4-3 the first holder；4-4 the second holder；5 bar plantings；
6 connect screw rod；7 horizontal stands；8 limiting stands；
9 hydraulic jack；10 push plate；11 circular locating openings；
12 fixing holes；13 fluid power systems.
Detailed description of the invention
A kind of bridge pier Semen Jujubae crashproof system of type compound as shown in Figure 1 and Figure 2, including the prepressing type anticollision device, collision-prevention device being laid in outside bridge pier 1 and be sleeved on the floatation type peripheral protective device outside described prepressing type anticollision device, collision-prevention device, described bridge pier 1 be in water pier and its be positioned at the middle inside of described prepressing type anticollision device, collision-prevention device.
Described floatation type peripheral protective device be shaped as date core shaped and it is formed by connecting by multiple anticollision box 2-1 floated on the water surface, multiple described anticollision box 2-1 are respectively positioned in same level and are attached by removable connector between adjacent two described anticollision box 2-1.
Described prepressing type anticollision device, collision-prevention device includes one or more Semen Jujubae type anti-collision structure, the structure of multiple described Semen Jujubae type anti-collision structures all identical and its be laid in from the inside to the outside outside bridge pier 1.Described Semen Jujubae type anti-collision structure includes bottom and inserts in riverbed or sea bed and in vertically to the outer cofferdam 3-1 laid and one or more power consumption layer being laid in inside outer cofferdam 3-1, the shape of cross section of described outer cofferdam 3-1 is date core shaped, the structure of multiple described power consumption layers all identical and its from top to bottom lay, described power consumption layer include multiple power consumption circle 3-2 being laid in same level, described power consumption circle 3-2 include through precompressed formed elastic ring and be sleeved on the oversheath outside described elastic ring.When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the power consumption circle 3-2 of described Semen Jujubae type anti-collision structure is fixed between its outer cofferdam 3-1 and lateral wall of bridge pier 1, and described floatation type peripheral protective device is set in outside the outer cofferdam 3-1 of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the Semen Jujubae type anti-collision structure being positioned at inner side in multiple described Semen Jujubae type anti-collision structures is inner side anti-collision structure, in multiple described Semen Jujubae type anti-collision structures, the Semen Jujubae type anti-collision structure except the anti-collision structure of inner side is outside anti-collision structure, the described power consumption layer of described inner side anti-collision structure is fixed between outer cofferdam 3-1 and the lateral wall of bridge pier 1, the described power consumption layer of described outside anti-collision structure is fixed between adjacent two outer cofferdam 3-1, described floatation type peripheral protective device is set in outside the outer cofferdam 3-1 being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure.The lateral wall of described bridge pier 1 and the outer cofferdam 3-1 of Semen Jujubae type anti-collision structure are provided with multiple to the power consumption circle 3-2 fixture being fixed.
In the present embodiment, described floatation type peripheral protective device also includes multiple spacing earth anchor 2-3, each described anticollision box 2-1 of respectively multiple described anticollision box 2-1 being carried out to carry out being attached each through being connected rope 2-4 between spacing earth anchor 2-3 with to it.
During practice of construction, described earth anchor 2-3 is the water-bed deadman being laid on riverbed or sea bed in advance.
In the present embodiment, described connection rope 2-4 is nylon rope.Time actually used, described connection rope 2-4 can also adopt other type of rope.
In practice of construction process, when the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the multiple described anticollision box 2-1 in described floatation type peripheral protective device is all close to outside the outer cofferdam 3-1 of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the multiple described anticollision box 2-1 in described floatation type peripheral protective device is all close to outside the outer cofferdam 3-1 being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure.
In the present embodiment, being positioned at outermost outer cofferdam 3-1 in described prepressing type anticollision device, collision-prevention device is cofferdam, outside.Multiple described anticollision box 2-1 in described floatation type peripheral protective device is fixed on cofferdam, described outside each through temporary fixing piece or adhesive glue.Further, described adhesive glue is water-insoluble glue.Further, owing to the shape of cross section of anticollision box 2-1 is polygon, thus during anticollision box 2-1, operate very easy when the outside in cofferdam, described outside is installed, very convenient during particularly in circular arc place or corner installation.
Time actually used, in described floatation type peripheral protective device, each anticollision box 2-1 all can fluctuate.Further, the height that in described floatation type peripheral protective device, multiple described anticollision box 2-1 surface is 2m～3m.
In the present embodiment, in described floatation type peripheral protective device, the height of multiple described anticollision box 2-1 is 6m～8m.
Actual adding man-hour, the shape of cross section of described anticollision box 2-1 is polygon.In the present embodiment, the shape of cross section of described anticollision box 2-1 is octagon.
In the present embodiment, the width of described anticollision box 2-1 less than before and after it to length.
Actual adding man-hour, described anticollision box 2-1 is processed by foam metal plate.
In the present embodiment, described anticollision box 2-1 is processed by foamed aluminium board, so not only processes simplicity, and anti-collision effect is good, and deformability is strong, can float on the water surface, durable and corrosion resistance good.
In the present embodiment, in described floatation type peripheral protective device, the structure of multiple described anticollision box 2-1 is all identical with size.
Thus, actual prefabricated processing is very easy, and any one anticollision box 2-1 can carry out easy replacement.
In the present embodiment, in described floatation type peripheral protective device, the quantity of included anticollision box 2-1 is more than 20.
As it is shown on figure 3, described removable connector includes connecting chain 2-21 and two connection axle 2-22 being separately mounted to connect chain 2-21 two ends, the lateral wall, left and right of each described anticollision box 2-1 is provided with one for connecting the axle 2-22 axle sleeve installed；Described axle sleeve is laid along the central axis of residing anticollision box 2-1, and described axle sleeve includes multiple sleeve 2-23 being from top to bottom laid on same vertical curve.
In the present embodiment, described axle sleeve includes three described sleeve 2-23.
Time actually used, multiple described anticollision box 2-1 in described floatation type peripheral protective device connects one anchoring system of formation, this floatation type peripheral protective device is the first protective equipment of bridge pier 1, and each anticollision box 2-1 can fluctuate with SEA LEVEL VARIATION, and connects the adjustable length of rope 2-4.
During practice of construction, described elastic ring is rubber ring or the steel strand wires circle formed by steel strands wound.Described oversheath is rubber sleeve.
In the present embodiment, described elastic ring is the steel strand wires circle formed by steel strands wound.So, described power consumption circle 3-2, after precompressed, can produce the prestressing force of correspondence, and pliability is good and anti-collision effect is good.
In the present embodiment, described floatation type peripheral protective device be shaped as nose circle shape, and the shape of cross section of outer cofferdam 3-1 is nose circle shape.That is, the middle part width of described floatation type peripheral protective device and outer cofferdam 3-1 is all higher than its rear and front end width, and described outer cofferdam 3-1 includes two structures and all identical rectangle cofferdam sections of size and two arc cofferdam sections being connected between sections rear and front end, two described rectangle cofferdam.
During practice of construction, the spacing between the outer cofferdam 3-1 that described bridge pier 1 is adjacent with outside it and between adjacent two outer cofferdam 3-1 is Φ 0.3m～Φ 3m.
In the present embodiment, described outer cofferdam 3-1 is by the cofferdam of composite plate machine-shaping, and described composite plate includes the carbon fiber layer on steel plate and two outboard sidewalls being laid in described steel plate respectively.
Further, described outer cofferdam 3-1 is spliced by the sheet pile that multiple height are all identical.
In the present embodiment, the bottom of described outer cofferdam 3-1 is provided with cutting shoe.During practice of construction, only outer cofferdam 3-1 inserted to play need to be entered riverbed or sea bed, so water effectively can be intercepted by outer cofferdam 3-1.
In the present embodiment, the thickness of slab of described outer the adopted composite plate of cofferdam 3-1 is 3mm～8mm, and it is 50cm～150cm that outer cofferdam 3-1 inserts the degree of depth of riverbed or sea bed.During practice of construction, can according to specific needs, the thickness of slab of described outer the adopted composite plate of cofferdam 3-1 and the degree of depth of outer cofferdam 3-1 insertion riverbed or sea bed be adjusted.
In the present embodiment, fixture set on the lateral wall of described bridge pier 1 is implant the bar planting 5 in bridge pier 1, and fixture set on described outer cofferdam 3-1 is for connecting screw rod 6.
Correspondingly, the lateral wall of described bridge pier 1 is embedded with multiple respectively to the multiple described power consumption circle bar planting 5 that is fixed of 3-2 in described interior Semen Jujubae type anti-collision structure.It is attached each through being connected screw rod 6 between described outer cofferdam 3-1 with power consumption circle 3-2.
In the present embodiment, Semen Jujubae type anti-collision structure adjacent with bridge pier 1 in described prepressing type anticollision device, collision-prevention device is interior Semen Jujubae type anti-collision structure；In described interior Semen Jujubae type anti-collision structure, the outside of each power consumption circle 3-2 is provided with precompressed fixture 4, is provided with precompressed fixture 4 outside the power consumption circle 3-2 that the length direction of described outside anti-collision structure is laid.
In conjunction with Fig. 4, described precompressed fixture 4 is made up of two holders being clamped in inside and outside power consumption circle 3-2, it is attached by multiple securing member 4-1 between two described holders, and two described holders all has multiple respectively for the securing member 4-1 installing hole 4-2 installed.
In the present embodiment, the first holder 4-3 of two described holder respectively inner hollow and plug-in mounting enter the second holder 4-4 in the first holder 4-3, and described first holder 4-3 and the second holder 4-4 is U-shaped.Further, described first holder 4-3 and the second holder 4-4 forms by steel plate bending, and the multiple described installing hole 4-2 that two described holders are opened is all in uniformly laying.
Actual adding man-hour, multiple described installing hole 4-2 are all laid on same straight line.
In the present embodiment, described securing member 4-1 is fastening bolt.
In the present embodiment, power consumption circle 3-2 in described prepressing type anticollision device, collision-prevention device includes lasting prepressing type power consumption circle and non-continuous prepressing type power consumption circle two types, the described prepressing type power consumption circle that continues has the power consumption circle 3-2 of precompressed fixture 4 for arranged outside, and in described prepressing type anticollision device, collision-prevention device, the power consumption circle 3-2 except described lasting prepressing type power consumption circle is described non-continuous prepressing type power consumption circle.Thus, the power consumption circle 3-2 laid on the length direction of each power consumption circle 3-2 and described outside anti-collision structure in described interior Semen Jujubae type anti-collision structure is described lasting prepressing type power consumption circle.
Wherein, the described prepressing type that continues consumes energy in circle, it is attached each through straight screw rod between two described holders of set precompressed fixture 4 inside and outside power consumption circle 3-2 and outside it, two described holders all have the circular locating openings 11 that a described straight screw rod of confession is installed；And, outside power consumption circle 3-2, set precompressed fixture 4 is fixed on the lateral wall of outer cofferdam 3-1 or bridge pier 1 by described fixture, correspondingly, outside power consumption circle 3-2, two described holders of set precompressed fixture 4 all have multiple fixing hole 12 installed respectively for described fixture.
In the present embodiment, in described prepressing type anticollision device, collision-prevention device, the quantity of included Semen Jujubae type anti-collision structure is two, and two described Semen Jujubae type anti-collision structures are respectively positioned at the Semen Jujubae type anti-collision structure outside bridge pier 1 and are positioned at the outer Semen Jujubae type anti-collision structure outside described Semen Jujubae type anti-collision structure.
During practice of construction, can according to specific needs, the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device be adjusted accordingly.
In the present embodiment, in described interior Semen Jujubae type anti-collision structure and outer Semen Jujubae type anti-collision structure, the quantity of set power consumption layer is three.Outer cofferdam 3-1 in described interior Semen Jujubae type anti-collision structure is internal layer cofferdam, and the outer cofferdam 3-1 in described outer Semen Jujubae type anti-collision structure is outer layer cofferdam；Power consumption layer in described interior Semen Jujubae type anti-collision structure is inner side power consumption layer, and the power consumption layer in described outer Semen Jujubae type anti-collision structure is outside power consumption layer.Time actually used, by cofferdam, described outside and cofferdam, described inner side, water is intercepted, the first cavity of an inner hollow is formed between described internal layer cofferdam and bridge pier 1, and between cofferdam, described outside and cofferdam, described inner side, form the second cavity of an inner hollow, described inner side power consumption layer is positioned at the inside upper part of described first cavity, and described outside power consumption layer is positioned at the inside upper part of described second cavity.
Owing to described outer cofferdam 3-1 adopts described composite plate brake forming, and described composite plate includes the carbon fiber layer on steel plate and two outboard sidewalls being laid in described steel plate respectively, this composite plate not only corrosion resistance is strong, and drawing effect is good, carbon fiber layer set by outside can effectively strengthen the pulling force of steel plate so that the drawing effect of outer cofferdam 3-1 is good, and pliability is good, be not susceptible to permanent deformation, after being knocked can fast quick-recovery to original state.Described power consumption circle 3-2 is the elastic ring after precompressed, thus optimizes anti-collision effect further.
Further, when elastic ring is formed by steel strand wires steel strands wound, after precompressed, the steel strand wires of this power consumption circle 3-2 will produce prestressing force, utilizes this prestressing force can effectively strengthen anti-collision effect and long service life, economical and practical.
In the present embodiment, the position laying power consumption circle 3-2 inside described Semen Jujubae type anti-collision structure China and foreign countries cofferdam 3-1 is power consumption position, and the quantity being laid power consumption circle 3-2 in described interior Semen Jujubae type anti-collision structure on each power consumption position is one.The quantity being laid power consumption circle 3-2 on two power consumption positions on the length direction of described outside anti-collision structure is multiple.
That is, when spacing between adjacent two described outer cofferdam 3-1 is bigger, multiple described power consumption circle 3-2 is laid in the position that spacing is bigger between adjacent two described outer cofferdam 3-1, the outside that multiple described power consumption circle 3-2 carry out laying and respectively 3-2 is enclosed in power consumption from the inside to the outside is provided with precompressed fixture 4, outside multiple described power consumption circle 3-2, set precompressed fixture 4 is all fastenedly connected and is integrated, and multiple described power consumption circle 3-2 can without precompressed.
Owing to the shape of described floatation type peripheral protective device and outer cofferdam 3-1 is the date core shaped that narrow centre, two is wide, and described floatation type peripheral protective device is all consistent with water (flow) direction with the length direction of outer cofferdam 3-1.
The construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound as shown in Figure 6, comprises the following steps:
Step one, divergence putting up platform: outside bridge pier 1, set up the divergence platform for the described Semen Jujubae crashproof system of type compound of constructing.
Step 2, parts transport and put in place: by each parts of the constructed Semen Jujubae crashproof system of type compound of machine-shaping in advance, be all transported on described divergence platform.
Fixture construction outside step 3, bridge pier: the installation position according to the quantity of power consumption circle 3-2 included in described Semen Jujubae type anti-collision structure adjacent with bridge pier 1 in the constructed Semen Jujubae crashproof system of type compound and each power consumption circle 3-2, lays multiple described fixture on the lateral wall of bridge pier 1.
Step 4, prepressing type anticollision device, collision-prevention device are constructed: the described prepressing type anticollision device, collision-prevention device of the constructed Semen Jujubae crashproof system of type compound is constructed；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, work progress is as follows:
Step 4011, outer cofferdam construction and draw water: the outer cofferdam 3-1 of described Semen Jujubae type anti-collision structure is constructed；After having constructed, pumping equipment is adopted to be extracted out by the water retained inside outer cofferdam 3-1；
Step 4012, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of power consumption circle 3-2 included in described Semen Jujubae type anti-collision structure and each power consumption circle 3-2, on the medial wall of the outer cofferdam 3-1 constructed in step 4011, lay multiple described fixture；
Step 4013, power consumption circle installation: the installation position according to the quantity of power consumption circle 3-2 included in described Semen Jujubae type anti-collision structure and each power consumption circle 3-2, and by described fixture, each power consumption circle 3-2 in described Semen Jujubae type anti-collision structure is both secured between outer cofferdam 3-1 and the lateral wall of bridge pier 1 constructed in step 4011；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, from the inside to the outside multiple described Semen Jujubae type anti-collision structures being constructed respectively, work progress is as follows:
Step 4021, inner side anti-collision structure are constructed: the method described in step 4011 to step 4013, complete the work progress of inner side anti-collision structure in described prepressing type anticollision device, collision-prevention device；
Step 4022, outer cofferdam external fixator are constructed: the installation position according to the quantity of power consumption circle 3-2 included in the outside anti-collision structure adjacent with described inner side anti-collision structure and each power consumption circle 3-2, on the lateral wall of the outer cofferdam 3-1 constructed in step 4021, lay multiple described fixture；
Step 4023, outside anti-collision structure are constructed, and process is as follows:
Step 40231, outer cofferdam construction and draw water: the outer cofferdam 3-1 of anti-collision structure outside currently being constructed is constructed；After having constructed, pumping equipment is adopted to be extracted out by the water retained between outer cofferdam 3-1 adjacent with inside it for outer cofferdam 3-1 of currently being constructed；
Step 40232, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of power consumption circle 3-2 included in outside anti-collision structure of currently being constructed and each power consumption circle 3-2, on the medial wall of the outer cofferdam 3-1 constructed in step 40231, lay multiple described fixture；
Step 40233, power consumption circle installation: the installation position according to the quantity of power consumption circle 3-2 included in outside anti-collision structure of currently being constructed and each power consumption circle 3-2, and by described fixture, each power consumption circle 3-2 currently constructed in the anti-collision structure of outside is both secured between the outer cofferdam 3-1 adjacent with inside it for outer cofferdam 3-1 constructed in step 40231；
Step 4024, judge whether described prepressing type anticollision device, collision-prevention device has constructed: when judging to show that described prepressing type anticollision device, collision-prevention device has been constructed, enter step 5；Otherwise, return step 4023, anti-collision structure outside the next one is constructed；
Step 5, floatation type peripheral protective device are constructed: outside the described prepressing type anticollision device, collision-prevention device constructed in step 4, the floatation type peripheral protective device of the constructed Semen Jujubae crashproof system of type compound is constructed.
In the present embodiment, when external cofferdam 3-1 constructs in step 4011 and step 40231, first determine the installation site of the outer cofferdam 3-1 that currently constructed, then adopt each sheet pile of the temporary guide structure inserted to play outer cofferdam 3-1 of composition, after each sheet pile closes up, outer cofferdam 3-1 inserted to play is put in place；Afterwards, carrying out leak stopping process, and extracted out by the mud bottom outer cofferdam 3-1 bottom external cofferdam 3-1, the ground bottom external cofferdam 3-1 hardens.
In the present embodiment, lasting prepressing type power consumption circle and non-continuous prepressing type power consumption circle two types is included due to the power consumption circle 3-2 in described prepressing type anticollision device, collision-prevention device, the described prepressing type power consumption circle that continues has the power consumption circle 3-2 of precompressed fixture 4 for arranged outside, and in described prepressing type anticollision device, collision-prevention device, the power consumption circle 3-2 except described lasting prepressing type power consumption circle is described non-continuous prepressing type power consumption circle；The described prepressing type power consumption circle arranged outside that continues has precompressed fixture 4.
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when described lasting prepressing type power consumption circle is carried out installation, process is as follows:
Step I, precompressed fixture are installed: by the two of precompressed fixture 4 described holders, are installed on respectively inside and outside power consumption circle 3-2；
Step II, precompressed: adopt precompressed mechanism that the spacing between in step I two described holders is compressed, and compression put in place after, adopting multiple described securing member 4-1 to be fastenedly connected by two described holders to be integrated, now power consumption circle 3-2 is installed in precompressed fixture 4；
Step III, power consumption circle are installed: by the power consumption circle 3-2 described in step II together with the precompressed fixture 4 being installed on outside it, be installed between outer cofferdam 3-1 and the lateral wall of bridge pier 1 or between adjacent two outer cofferdam 3-1；Further, by described fixture two described holders of precompressed fixture 4 are separately fixed at outer cofferdam 3-1 with on bridge pier 1 or on adjacent two outer cofferdam 3-1；Then, unclamp and two described holders are fastenedly connected the multiple described securing member 4-1 being integrated by step II.
That is, when described lasting prepressing type power consumption circle is carried out installation, by described fixture two described holders of precompressed fixture 4 are separately fixed at outer cofferdam 3-1 with on bridge pier 1 or on adjacent two outer cofferdam 3-1 after, the multiple described securing member 4-1 on precompressed fixture 4 need to be unclamped, continue power consumption circle 3-2 is defined with bridge pier 1 or adjacent two outer cofferdam 3-1 by outer cofferdam 3-1 so that power consumption circle 3-2 continues to keep preloading condition.
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when circle that described non-continuous prepressing type is consumed energy carries out installation, process is as follows:
Step, precompressed fixture are installed: by the two of precompressed fixture 4 described holders, are installed on respectively inside and outside power consumption circle 3-2；
Step, precompressed: adopt precompressed mechanism the spacing between in step two described holders is compressed, and compression put in place after, adopt multiple described securing member 4-1 to be fastenedly connected by two described holders and be integrated, complete power consumption circle 3-2 pre-compaction process；
Step, power consumption circle are installed: be arranged between outer cofferdam 3-1 and the lateral wall of bridge pier 1 or between adjacent two outer cofferdam 3-1 by the power consumption circle 3-2 after precompressed in step, and in installation process, remove precompressed fixture 4, and by described fixture by power consumption circle 3-2 inside and outside be separately fixed at outer cofferdam 3-1 with on bridge pier 1 or on adjacent two outer cofferdam 3-1.
As it is shown in figure 5, when step II and step carry out precompressed, all carry out precompressed on pre-flattening bench；Described precompressed mechanism is the hydraulic jack 9 laid in level；
Described pre-flattening bench includes horizontal stand 7 and is positioned at the limiting stand 8 above horizontal stand 7 side, one holder outer end of described precompressed fixture 4 is propped up and is withstood on limiting stand 8, another holder outer end withstanding on precompressed fixture 4 is propped up on the piston rod top of hydraulic jack 9, and pads equipped with push plate 10 between another holder outer end of the piston rod top of hydraulic jack 9 and precompressed fixture 4；The hydraulic cylinder body of described hydraulic jack 9 is fixed on above the opposite side of horizontal stand 7.
In the present embodiment, step II and when carrying out precompressed in step, the first anti-collision level according to bridge pier 1, the precompression of current institute precompressed power consumption circle 3-2 is determined；Meanwhile, in conjunction with the installation site of current institute precompressed power consumption circle 3-2, the size of current institute precompressed power consumption circle 3-2 is determined.Further, actual when carrying out precompressed, the precompressed fixture 4 adopted is installed in the middle part of power consumption circle 3-2.
In the present embodiment, described hydraulic jack 9 is connected with fluid power system 13 by fluid pressure line, and the precompression size that can easy hydraulic jack 9 be provided by fluid power system 13 is adjusted accordingly.And after precompressed, power consumption circle 3-2 is collapsed into ellipse, and is in preloading condition.
In the present embodiment, being positioned at outermost outer cofferdam 3-1 in prepressing type anticollision device, collision-prevention device described in step 4 is cofferdam, outside.
When step 5 carries out the construction of floatation type peripheral protective device, first pass through described removable connector to be connected as one by multiple described anticollision box 2-1, again through temporary fixing piece or adhesive glue, multiple described anticollision box 2-1 are fixed on cofferdam, described outside, simultaneously by connect rope 2-4 by each anticollision box 2-1 with it carried out spacing earth anchor 2-3 be connected.
The above; it it is only presently preferred embodiments of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure change above example made according to the technology of the present invention essence, all still fall within the protection domain of technical solution of the present invention.

Claims (9)

1. the construction method of the bridge pier Semen Jujubae crashproof system of type compound, the crashproof system of this compound includes being laid in the prepressing type anticollision device, collision-prevention device in bridge pier (1) outside and is sleeved on the floatation type peripheral protective device outside described prepressing type anticollision device, collision-prevention device, described bridge pier (1) for pier in water and its be positioned at the middle inside of described prepressing type anticollision device, collision-prevention device；
Described floatation type peripheral protective device be shaped as date core shaped and it is formed by connecting by multiple anticollision boxes (2-1) floated on the water surface, multiple described anticollision boxes (2-1) are respectively positioned in same level and are attached by removable connector between adjacent two described anticollision boxes (2-1)；
Described prepressing type anticollision device, collision-prevention device includes one or more Semen Jujubae type anti-collision structure, the structure of multiple described Semen Jujubae type anti-collision structures all identical and its be laid in from the inside to the outside bridge pier (1) outside；Described Semen Jujubae type anti-collision structure includes bottom and inserts in riverbed or sea bed and in vertically to the outer cofferdam (3-1) laid and one or more power consumption layer being laid in inner side, outer cofferdam (3-1), the shape of cross section of described outer cofferdam (3-1) is date core shaped, the structure of multiple described power consumption layers all identical and its from top to bottom lay, described power consumption layer includes multiple power consumption circle (3-2) being laid in same level, and described power consumption circle (3-2) includes the elastic ring that formed through precompressed and is sleeved on the oversheath outside described elastic ring；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the power consumption circle (3-2) of described Semen Jujubae type anti-collision structure is fixed between its outer cofferdam (3-1) and lateral wall of bridge pier (1), and described floatation type peripheral protective device is set in the outside, outer cofferdam (3-1) of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the Semen Jujubae type anti-collision structure being positioned at inner side in multiple described Semen Jujubae type anti-collision structures is inner side anti-collision structure, in multiple described Semen Jujubae type anti-collision structures, the Semen Jujubae type anti-collision structure except the anti-collision structure of inner side is outside anti-collision structure, the described power consumption layer of described inner side anti-collision structure is fixed between the lateral wall of outer cofferdam (3-1) and bridge pier (1), the described power consumption layer of described outside anti-collision structure is fixed between adjacent two outer cofferdam (3-1), described floatation type peripheral protective device is set in the outside, outer cofferdam (3-1) being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure；The lateral wall of described bridge pier (1) and the outer cofferdam (3-1) of Semen Jujubae type anti-collision structure are provided with multiple fixture that power consumption circle (3-2) is fixed；
It is characterized in that: this construction method comprises the following steps:
Step one, divergence putting up platform: set up the divergence platform for the described Semen Jujubae crashproof system of type compound of constructing in bridge pier (1) outside；
Step 2, parts transport and put in place: by each parts of the constructed Semen Jujubae crashproof system of type compound of machine-shaping in advance, be all transported on described divergence platform；
Fixture construction outside step 3, bridge pier: the installation position according to the quantity of power consumption circle (3-2) included in described Semen Jujubae type anti-collision structure adjacent with bridge pier (1) in the constructed Semen Jujubae crashproof system of type compound and each power consumption circle (3-2), lays multiple described fixture on the lateral wall of bridge pier (1)；
Step 4, prepressing type anticollision device, collision-prevention device are constructed: the described prepressing type anticollision device, collision-prevention device of the constructed Semen Jujubae crashproof system of type compound is constructed；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, work progress is as follows:
Step 4011, outer cofferdam construction and draw water: is constructed in the outer cofferdam (3-1) of described Semen Jujubae type anti-collision structure；After having constructed, pumping equipment is adopted to be extracted out by internal to outer cofferdam (3-1) water retained；
Step 4012, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of power consumption circle (3-2) included in described Semen Jujubae type anti-collision structure and each power consumption circle (3-2), on the medial wall in the outer cofferdam (3-1) constructed in step 4011, lay multiple described fixture；
Step 4013, power consumption circle installation: the installation position according to the quantity of power consumption circle (3-2) included in described Semen Jujubae type anti-collision structure and each power consumption circle (3-2), and by described fixture, between the outer cofferdam (3-1) and the lateral wall of bridge pier (1) that be both secured to construct in step 4011 by the circle (3-2) that respectively consumes energy in described Semen Jujubae type anti-collision structure；
When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, from the inside to the outside multiple described Semen Jujubae type anti-collision structures being constructed respectively, work progress is as follows:
Step 4021, inner side anti-collision structure are constructed: the method described in step 4011 to step 4013, complete the work progress of inner side anti-collision structure in described prepressing type anticollision device, collision-prevention device；
Step 4022, outer cofferdam external fixator are constructed: the installation position according to the quantity of power consumption circle (3-2) included in the outside anti-collision structure adjacent with described inner side anti-collision structure and each power consumption circle (3-2), on the lateral wall in the outer cofferdam (3-1) constructed in step 4021, lay multiple described fixture；
Step 4023, outside anti-collision structure are constructed, and process is as follows:
Step 40231, outer cofferdam construction and draw water: is constructed in the outer cofferdam (3-1) of anti-collision structure outside currently being constructed；After having constructed, pumping equipment is adopted to be extracted out by the water retained between outer cofferdam (3-1) adjacent with inside it for outer cofferdam (3-1) of currently being constructed；
Step 40232, outer cofferdam interior fixtures are constructed: the installation position according to the quantity of the circle (3-2) that consumes energy included in outside anti-collision structure of currently being constructed and each power consumption circle (3-2), on the medial wall in the outer cofferdam (3-1) constructed in step 40231, lay multiple described fixture；
Step 40233, power consumption circle installation: the installation position according to the quantity of power consumption circle (3-2) included in anti-collision structure outside currently being constructed and each power consumption circle (3-2), and by described fixture, between the outer cofferdam (3-1) that the outer cofferdam (3-1) that is both secured to construct in step 40231 by the circle (3-2) that respectively consumes energy in anti-collision structure outside currently being constructed is adjacent with inside it；
Step 4024, judge whether described prepressing type anticollision device, collision-prevention device has constructed: when judging to show that described prepressing type anticollision device, collision-prevention device has been constructed, enter step 5；Otherwise, return step 4023, anti-collision structure outside the next one is constructed；
Step 5, floatation type peripheral protective device are constructed: outside the described prepressing type anticollision device, collision-prevention device constructed in step 4, the floatation type peripheral protective device of the constructed Semen Jujubae crashproof system of type compound is constructed.
2. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1, it is characterized in that: described floatation type peripheral protective device be shaped as nose circle shape, and the shape of cross section of outer cofferdam (3-1) is nose circle shape: the spacing between the outer cofferdam (3-1) that described bridge pier (1) is adjacent with outside it and between adjacent two outer cofferdam (3-1) is Φ 0.3m～Φ 3m.
3. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1 or 2, it is characterised in that: described elastic ring is rubber ring or the steel strand wires circle formed by steel strands wound.
4. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1 or 2, it is characterized in that: described floatation type peripheral protective device also includes multiple spacing earth anchor (2-3) that respectively multiple described anticollision boxes (2-1) carried out, each described anticollision box (2-1) carries out being attached each through being connected rope (2-4) between spacing earth anchor (2-3) with to it；In described floatation type peripheral protective device, the quantity of included anticollision box (2-1) is more than 20；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is one, the multiple described anticollision box (2-1) in described floatation type peripheral protective device is all close to the outside, outer cofferdam (3-1) of described Semen Jujubae type anti-collision structure；When the quantity of Semen Jujubae type anti-collision structure included in described prepressing type anticollision device, collision-prevention device is multiple, the multiple described anticollision box (2-1) in described floatation type peripheral protective device is all close to the outside, outer cofferdam (3-1) being positioned at outermost Semen Jujubae type anti-collision structure in multiple described Semen Jujubae type anti-collision structure.
5. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1 or 2, it is characterized in that: described outer cofferdam (3-1) is that described composite plate includes the carbon fiber layer on steel plate and two outboard sidewalls being laid in described steel plate respectively by the cofferdam of composite plate machine-shaping；Described anticollision box (2-1) is processed by foam metal plate.
6. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1 or 2, it is characterised in that: the height that in described floatation type peripheral protective device, multiple described anticollision boxes (2-1) are surfaced is 2m～3m；Described removable connector includes connecting chain (2-21) and two connection axles (2-22) being separately mounted to connect chain (2-21) two ends, the lateral wall, left and right of each described anticollision box (2-1) is provided with one for connecting the axle sleeve that axle (2-22) is installed；Described axle sleeve is laid along the central axis of residing anticollision box (2-1), and described axle sleeve includes multiple sleeve (2-23) being from top to bottom laid on same vertical curve.
7. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1 or 2, it is characterised in that: Semen Jujubae type anti-collision structure adjacent with bridge pier (1) in described prepressing type anticollision device, collision-prevention device is interior Semen Jujubae type anti-collision structure；Respectively consume energy in the described interior Semen Jujubae type anti-collision structure outside of circle (3-2) is provided with precompressed fixture (4), and power consumption circle (3-2) outside that the length direction of described outside anti-collision structure is laid is provided with precompressed fixture (4)；Described precompressed fixture (4) is made up of two holders being clamped in inside and outside power consumption circle (3-2), it is attached by multiple securing members (4-1) between two described holders, and two described holders all have multiple installing hole (4-2) installed for securing member (4-1) respectively.
8. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 1, it is characterized in that: the power consumption circle (3-2) in described prepressing type anticollision device, collision-prevention device includes lasting prepressing type power consumption circle and non-continuous prepressing type power consumption circle two types, the described prepressing type power consumption circle that continues has the power consumption circle (3-2) of precompressed fixture (4) for arranged outside, and in described prepressing type anticollision device, collision-prevention device, the power consumption circle (3-2) except described lasting prepressing type power consumption circle is described non-continuous prepressing type power consumption circle；The described prepressing type power consumption circle arranged outside that continues has precompressed fixture (4), described precompressed fixture (4) is made up of two holders being clamped in inside and outside power consumption circle (3-2), it is attached by multiple securing members (4-1) between two described holders, and two described holders all have multiple installing hole (4-2) installed for securing member (4-1) respectively；
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when described lasting prepressing type power consumption circle is carried out installation, process is as follows:
Step I, precompressed fixture are installed: by two described holders of precompressed fixture (4), are installed on respectively inside and outside power consumption circle (3-2)；
Step II, precompressed: adopt precompressed mechanism that the spacing between in step I two described holders is compressed, and compression put in place after, adopting multiple described securing member (4-1) to be fastenedly connected by two described holders to be integrated, the circle (3-2) that now consumes energy is installed in precompressed fixture (4)；
Step III, power consumption circle are installed: by the power consumption circle (3-2) described in step II together with the precompressed fixture (4) being installed on outside it, be installed between outer cofferdam (3-1) and the lateral wall of bridge pier (1) or between adjacent two outer cofferdam (3-1)；Further, by described fixture, two described holders of precompressed fixture (4) are separately fixed at outer cofferdam (3-1) to go up or on adjacent two outer cofferdam (3-1) with bridge pier (1)；Then, unclamp and two described holders are fastenedly connected the multiple described securing member (4-1) being integrated by step II；
Carrying out in prepressing type anticollision device, collision-prevention device work progress in step 4, when circle that described non-continuous prepressing type is consumed energy carries out installation, process is as follows:
Step, precompressed fixture are installed: by two described holders of precompressed fixture (4), are installed on respectively inside and outside power consumption circle (3-2)；
Step, precompressed: adopt precompressed mechanism that the spacing between in step two described holders is compressed, and compression put in place after, adopt multiple described securing member (4-1) to be fastenedly connected by two described holders to be integrated, complete the pre-compaction process of power consumption circle (3-2)；
Step, power consumption circle are installed: be arranged between outer cofferdam (3-1) and the lateral wall of bridge pier (1) by the power consumption circle (3-2) after precompressed in step or between adjacent two outer cofferdam (3-1), and in installation process, remove precompressed fixture (4), and outer cofferdam (3-1) and bridge pier (1) will be separately fixed at inside and outside power consumption circle (3-2) above or on adjacent two outer cofferdam (3-1) by described fixture.
9. the construction method of a kind of bridge pier Semen Jujubae crashproof system of type compound described in claim 8, it is characterised in that: step II and when carrying out precompressed in step, on pre-flattening bench, all carry out precompressed；Described precompressed mechanism is the hydraulic jack (9) laid in level；
Described pre-flattening bench includes horizontal stand (7) and is positioned at the limiting stand (8) above horizontal stand (7) side, one holder outer end of described precompressed fixture (4) is propped up and is withstood on limiting stand (8), another holder outer end withstanding on precompressed fixture (4) is propped up on the piston rod top of hydraulic jack (9), and pads equipped with push plate (10) between another holder outer end of the piston rod top of hydraulic jack (9) and precompressed fixture (4)；The hydraulic cylinder body of described hydraulic jack (9) is fixed on above the opposite side of horizontal stand (7)；
Being positioned at outermost outer cofferdam (3-1) in prepressing type anticollision device, collision-prevention device described in step 4 is cofferdam, outside；
The device of floatation type peripheral protective described in step 5 also includes multiple spacing earth anchor (2-3) that respectively multiple described anticollision boxes (2-1) carried out, and each described anticollision box (2-1) carries out being attached each through being connected rope (2-4) between spacing earth anchor (2-3) with to it；
When step 5 carries out the construction of floatation type peripheral protective device, first pass through described removable connector multiple described anticollision boxes (2-1) to be connected as one, again through temporary fixing piece or adhesive glue, multiple described anticollision boxes (2-1) are fixed on cofferdam, described outside, simultaneously by connect rope (2-4) by each anticollision box (2-1) with it carried out spacing earth anchor (2-3) be connected.
CN201510148280.5A 2015-03-31 2015-03-31 A kind of construction method of the bridge pier Semen Jujubae crashproof system of type compound Expired - Fee Related CN104775355B (en)

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