Fishing bridge machine

Abstract

The present invention relates to a bridge erecting machine using a fishing method, and belongs to the technical field of cranes. The bridge erecting machine includes a front leg, a middle leg, a rear leg, a front beam crane, a rear beam crane, a single guide beam, a No. 1 crane, a No. 2 crane, a No. 3 crane, and a retractable front auxiliary leg. The front beam crane and the rear beam crane are located on the single guide beam, and the front auxiliary leg is located at the front end of the single guide beam. A longitudinal short beam is provided on both sides of the front of the single guide beam, and the short beam is fixedly connected to the single guide beam through a cross beam. The No. 1 crane is installed on two short beams, and the No. 2 crane and the No. 3 crane are installed on the lower ear beam of the single guide beam. By using the bridge erecting machine using the fishing method of the present invention, together with corresponding auxiliary equipment and facilities, the fishing method can be used to complete the erection of pile foundations, abutments, piers and bridges, and no construction access roads are set up, so as to minimize the damage to the environment and the impact on wild animals and plants under the bridge.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, in particular to a bridge erecting machine using a fishing method. Background Art

[0002] The bridge erection machine is a device that places the prefabricated beams on the prefabricated bridge piers. The bridge erection machine belongs to the category of cranes because its main function is to lift the beams, transport them to the location and then put them down.

[0003] There are three types of bridge-building machines commonly used in China: single-beam bridge-building machine, double-cantilever bridge-building machine, and double-beam bridge-building machine.

[0004] Single beam bridge erecting machine

[0005] A bridge construction machine, whose boom is a box beam, cantilevered forward, with a foldable column (composed of two left and right legs) at the front end. The machine can drive into the bridge position by itself in an unloaded state, and then straighten the front column and support it on the bridge pier in front. When the beam piece (or the whole hole box beam) moves along the boom, the boom is close to the state of a simply supported beam. When erecting a bridge, the machine can drive into the bridge position by itself in an unloaded state. First, the beam piece must be transferred from the railway flatbed car to the special beam transport vehicle using a special gantry crane, and then the beam transport vehicle and the rear end of the bridge erection machine are aligned, and the beam piece is lifted by two beam cranes running on the boom of the bridge erection machine, and then moved forward along the boom to the bridge position to drop the beam. In order to adapt to curved bridge erection, the boom of the machine can swing a small amount in the horizontal plane. The method of placing the beam piece is the same as that used by the double-cantilever bridge erection machine (beam shifting or track shifting). The advantages of this machine are: the counterweight is eliminated, locomotive pushing is no longer needed, beam feeding does not require a bridge head switch, the degree of mechanization is increased, and safety performance is improved.

[0006] Double cantilever bridge erecting machine

[0007] This type of bridge erection machine cannot move on its own and needs to be pushed by a locomotive. Its front arm is used to lift beams, and the rear arm is used to lift counterweights. Both the front and rear arms cannot swing in the horizontal plane. When erecting a bridge, a special 80-ton flatbed car is often required to transport the beams to the hook under the front arm of the bridge erection machine (called "feeding beams") before lifting them. In order to facilitate shunting operations, a branch line must be laid at the bridgehead. After the bridge erection machine lifts the beam, the axle weight increases, and the newly built embankment at the bridgehead is relatively soft. Therefore, reinforcement measures must be taken for the section where the bridge erection machine is lifting the beam, such as using heavy vehicles to press the road and inserting sleepers.

[0008] Double beam bridge erecting machine

[0009] The boom is composed of two box beams on the left and right, which run through the machine body and extend to the front and rear ends. There are folding columns composed of two legs at both ends. There are two gantry trucks spanning the two box beams, which can travel longitudinally along the boom. The beam lifting trolley is placed on the gantry truck and can travel horizontally along the gantry truck. The beam pieces (or whole beams) to be erected can be directly sent to the rear arm of the bridge erector by a railway flatbed truck. After being lifted by the beam lifting trolley, they are moved forward by the gantry truck, and then moved horizontally by the beam lifting trolley, and then the beams are dropped into place. The front and rear ends of this type of bridge erector can lift and drop beams; when changing the direction of beam erection, there is no need to turn around; in order to adapt to curved beam erection, the front and rear arms can swing in the horizontal plane; when erecting in sections, there is no need to move the beams or shift the track, and the beams can be in place; "feeding beams" does not require a bridgehead branch line or a special beam transporter.

[0010] Existing bridge erection machines can only use the fishing method to install bridge piers and erect prefabricated beams, and cannot use the fishing method to complete the construction of pile foundations and pedestals. The construction of pile foundations and pedestals requires the construction of additional ground construction access roads, which will cause great damage to the environment and have a great impact on wild animals and plants under the bridge. Summary of the invention

[0011] The present invention aims to provide a bridge erecting machine using a fishing method, which can use the fishing method to complete the erection of pile foundations, abutments, piers and bridges without setting up construction access roads, thereby minimizing damage to the environment and the impact on wild animals and plants under the bridge as much as possible.

[0012] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0013] The present invention is improved on the basis of the existing single-beam bridge erecting machine. The main difference between the present invention and the existing single-beam bridge erecting machine is that the front part adopts a partial double-beam mechanism, and the front auxiliary legs and three working cranes are added, as follows:

[0014] The fishing method bridge-building machine comprises a front support leg, a middle support leg, a rear support leg, a front hanging beam crane, a rear hanging beam crane, a single guide beam, a No. 1 crane and a retractable front auxiliary support leg, the front hanging beam crane and the rear hanging beam crane are located on the single guide beam, the front auxiliary support leg is located at the front end of the single guide beam, a longitudinal short beam is respectively provided on both sides of the front of the single guide beam, the short beam is fixedly connected to the single guide beam through a cross beam, the bridge frame of the No. 1 crane can run longitudinally along the track laid on the two short beams, and the lifting trolley of the No. 1 crane can run transversely along the track laid on the bridge frame.

[0015] Furthermore, the cross beam comprises a front cross beam and a rear cross beam, the rear cross beam is higher than the front cross beam, one end of the front cross beam is fixedly connected to the side surface of the single guide beam, and the other end of the front cross beam is fixedly connected to the side surface of the short beam;

[0016] One end of the rear cross beam is fixedly connected to the side surface of the single guide beam, and the other end of the rear cross beam is fixedly connected to the top surface of the short beam.

[0017] Furthermore, the fishing method bridge-building machine also includes crane No. 2 and crane No. 3, and the crane No. 2 and crane No. 3 are installed on the single guide beam and can run longitudinally along the single guide beam to between two short beams.

[0018] Furthermore, the running tracks of carriages No. 2 and No. 3 are longitudinally laid on the lower ear beams of the single guide beam.

[0019] Furthermore, the front auxiliary support leg includes a telescopic bracket, a supporting steel pillow beam installed on the lower end of the telescopic bracket, and a supporting plate pillow beam; the top surface of the supporting plate pillow beam is connected to the bottom surface of the supporting steel pillow beam, and a plurality of gripping nails are provided on the bottom surface of the supporting plate pillow beam.

[0020] Further preferably, the area of ​​the supporting plate bolster is greater than the area of ​​the supporting steel bolster.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] By using the fishing method bridge erecting machine of the present invention, together with corresponding auxiliary equipment and facilities, the fishing method can be used to complete the erection of pile foundations, abutments, piers and bridges, without setting up construction access roads, thereby minimizing damage to the environment and the impact on wild animals and plants under the bridge as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a front view of the first front structure of the present invention;

[0025] Figure 3 It is a top view of a single guide beam and a partial double beam;

[0026] Figure 4 yes Figure 2 Sectional view at A in the middle (no. 1 carriage and front auxiliary support leg are not shown);

[0027] Figure 5 yes Figure 2 Cross-sectional view at B in the middle (front auxiliary legs not shown);

[0028] Figure 6 is a front view of a second front structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure when the front auxiliary outrigger is extended to the longest position;

[0030] Figure 8 It is a schematic diagram of the structure when the front auxiliary outrigger is retracted to the shortest position;

[0031] Fig. 9 It is a schematic diagram of the structure of the lower end of the front auxiliary outrigger;

[0032] Fig.10 This is a schematic diagram of the construction preparation for beam erection;

[0033] Fig.11 This is a schematic diagram of the bridge erector preparing to pass through the hole;

[0034] Fig.12 This is a schematic diagram of the bridge erection machine passing through the hole;

[0035] Fig.13 This is a schematic diagram of the bridge erection machine passing through the hole;

[0036] Fig.14 This is a schematic diagram of the front auxiliary outrigger just reaching the front abutment;

[0037] Fig.15 This is a schematic diagram of the bridge erection machine after the hole is completed;

[0038] Fig.16 It is a schematic diagram of the preparation for pile foundation construction;

[0039] Fig.17 It is a schematic diagram of the drilling construction of pile foundation construction;

[0040] Fig.18 This is a schematic diagram of the pile foundation reinforcement cage being hoisted into the hole;

[0041] Fig.19 This is a schematic diagram of the pile foundation concrete pouring;

[0042] Fig. 20 This is a schematic diagram of tying steel bars during foundation construction;

[0043] Fig.21 This is a schematic diagram of the foundation during pouring;

[0044] Fig. 22 It is a schematic diagram of the working pit, enclosure, steel membrane, and steel bars tied and assembled in place;

[0045] Fig.23 This is a schematic diagram of the pier body concrete pouring;

[0046] Fig.24 This is a schematic diagram after the pier construction is completed;

[0047] Fig.25 It is a schematic diagram of the middle outrigger moving forward to be close to the front outrigger;

[0048] Fig.26 It is a schematic diagram of the front outrigger moving forward to the front axle platform beam position;

[0049] Fig. 27 It is a schematic diagram of assembling box beams;

[0050] Fig.28 This is a schematic diagram of the front beam crane lifting the front part of the box beam;

[0051] Fig.29 It is a schematic diagram of the front beam crane and the rear beam crane lifting the box beam;

[0052] Fig.30 This is a schematic diagram when the box girder is erected. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0054] The fishing method bridge-building machine disclosed in the present invention is an improvement on the existing single-beam bridge-building machine. The main difference between the fishing method bridge-building machine of the present invention and the existing single-beam bridge-building machine is that a partial double-beam mechanism is adopted at the front, and front auxiliary legs and three working cranes are added.

[0055] like Figure 1-5 As shown, the fishing method bridge erecting machine disclosed in the present invention specifically includes a front leg 1, a middle leg 2, a rear leg 3, a front beam crane 4, a rear beam crane 5, a single guide beam 6, a front auxiliary leg 7, a No. 1 crane 8, a No. 2 crane 12 and a No. 3 crane 13. The front beam crane 4 and the rear beam crane 5 are located on the single guide beam 6. The front auxiliary leg 7 is retractable. There are many ways to retract the front auxiliary leg 7, and a common retractable mechanism such as a cylinder retractable mechanism can be used.

[0056] Since the front supporting leg 1 , the middle supporting leg 2 , and the rear supporting leg 3 are supported on the viaduct, and the front auxiliary supporting leg 7 is supported on the ground, the length of the front auxiliary supporting leg 7 should be longer than that of the front supporting leg 1 , the middle supporting leg 2 , and the rear supporting leg 3 .

[0057] In order to minimize the damage to the vegetation, the front auxiliary leg 7 can be retracted and then preferably cross over the plants. Therefore, in this embodiment, the telescopic bracket 71 of the front auxiliary leg 7 includes a winch lifting structure to achieve a wide range of amplitude variation of the front auxiliary leg 7.

[0058] like Figure 7 , 8 As shown, in this embodiment, the telescopic bracket 71 has a cylinder telescopic mechanism at the bottom and a winch lifting structure at the top. When it is necessary to pass through relatively short vegetation, it is only necessary to adjust the cylinder telescopic mechanism to retract it; and when it is necessary to pass through vegetation of a certain height, the cylinder telescopic mechanism and the winch lifting structure are adjusted at the same time, so that the lower part of the telescopic bracket 71 is retracted and the upper part is folded to shorten the telescopic bracket 71, so as to pass over the vegetation.

[0059] like Fig. 9As shown, the front auxiliary leg 7 includes a telescopic bracket 71, a supporting steel bolster 72 installed at the lower end of the telescopic bracket 71, and a supporting plate bolster 73. The area of ​​the supporting plate bolster 73 is larger than that of the supporting steel bolster 72. The top surface of the supporting plate bolster 73 is connected to the bottom surface of the supporting steel bolster 72, and a plurality of gripping nails 74 are provided on the bottom surface of the supporting plate bolster 73. The front auxiliary leg 7 is located at the front end of the single guide beam 6, and a longitudinal short beam 9 is provided on both sides of the front of the single guide beam 6.

[0060] The No. 2 crane 12 and the No. 3 crane 13 are installed on the single guide beam 6 and can run longitudinally on the single guide beam 6 to the space between the two short beams 9. The running tracks of the No. 2 crane 12 and the No. 3 crane 13 are longitudinally laid on the lower ear beam 61 of the single guide beam 6. The No. 2 crane 12 and the No. 3 crane 13 are mainly used for the hoisting of special drilling rigs including drilling rig support platforms, cap templates, pier body templates, support working wells, concrete, steel bars and other construction auxiliary equipment and facilities, and the front and rear transportation and hoisting of construction wastes such as waste slag, waste soil, and waste water.

[0061] No. 1 crane 8 is installed on two short beams 9, and the bridge of No. 1 crane 8 can run longitudinally along the tracks laid on the two short beams 9, and the lifting trolley of No. 1 crane 8 can run transversely along the tracks laid on the bridge. It is mainly used for transverse movement of equipment within the range of the platform and short-distance longitudinal movement, and closely cooperates with No. 2 crane 12 and No. 3 crane 13 to complete the fishing method construction operation.

[0062] The short beam 9 is fixedly connected to the single guide beam 6 through a cross beam. Figure 2-5 As shown, the crossbeam includes a front crossbeam 10 and a rear crossbeam 11. The rear crossbeam 11 is higher than the front crossbeam 10. One end of the front crossbeam 10 is fixedly connected to the side of the single guide beam 6, and the other end of the front crossbeam 10 is fixedly connected to the side of the short beam 9; one end of the rear crossbeam 11 is fixedly connected to the side of the single guide beam 6, and the other end of the rear crossbeam 11 is fixedly connected to the top surface of the short beam 9.

[0063] like Figure 2 As shown, the front cross beam 10 and the rear cross beam 11 are both arranged at the front end of the short beam 9. Figure 6 As shown, the front cross beam 10 and the rear cross beam 11 are respectively arranged at the front and rear ends of the short beam 9.

[0064] The method of using the fishing method bridge erecting machine of the present invention to carry out fishing method construction is as follows:

[0065] S1, first frame section construction, such as Fig.10 As shown:

[0066] S1.1, in the line position where the fishing method bridge erection machine is allowed to be constructed, and in the vicinity of the highway, find the relatively best point, and use the existing method to complete the construction of the bridge pile foundation, abutment and pier of 3-5 spans in advance;

[0067] S1.2, complete the assembly of the cross-line gantry crane 15;

[0068] S1.3, the cross-line gantry crane 15 completes the assembly of the segment box girder 20 and the erection of the 3-5 span box girder 20;

[0069] S1.4, use the cross-line gantry crane 15 to complete the assembly of the fishing method bridge erecting machine, the beam transport vehicle 14 and the logistics vehicle.

[0070] , the fishing method bridge machine through hole, including the following steps:

[0071] S2.1, such as Fig.11 As shown, the 30m beam is erected, the front beam crane 4 and the rear beam crane 5 are opened to the position of the middle support leg 2, and the bridge erection machine is ready to pass through the hole;

[0072] S2.2, such as Fig.12 As shown, the rear outrigger 3 and the front auxiliary outrigger 7 are folded, and the front outrigger 1 and the middle outrigger 2 hanging system are used to drive the single guide beam 6 and the front auxiliary outrigger 7 to move forward 25m, and the front hanging beam trolley 4 and the rear hanging beam trolley 5 are kept near the middle outrigger 2 as counterweights;

[0073] S2.3, such as Fig.13 As shown, the rear outrigger 3 is propped up, the middle outrigger 2 is retracted, and after the middle outrigger 2 moves forward 5m, the middle outrigger 2 is propped up;

[0074] S2.4, such as Fig.14 As shown, the rear outrigger 3 is folded up, and the front outrigger 1 and middle outrigger 2 hanging systems are used to drive the single guide beam 6 and the front auxiliary outrigger 7 to move forward 5m, so that the front auxiliary outrigger 7 reaches the front position of the front axle platform, and the front auxiliary outrigger 7 is supported, and the front auxiliary outrigger 7 is supported on the cleaned ground using the supporting steel bolster 72 and the supporting plate bolster 73 of the front auxiliary outrigger 7, ensuring that the support of the front auxiliary outrigger 7 is firm and reliable.

[0075] S2.5, such as Fig.15 As shown, the rear outrigger 3 is propped up, the middle outrigger 2 is retracted, the middle outrigger 2 is moved forward 10m, and the middle outrigger 2 is propped up;

[0076] S3, pile foundation construction, includes the following steps:

[0077] S3.1, use the fishing method bridge-building machine No. 2 crane 12 and No. 3 crane 13 to lift the spiral drilling machine or impact drilling machine equipped with a special platform to the front ground position and get ready.

[0078] S3.2, such as Fig.16 As shown, the transport vehicle 16 transports the basic enclosure to the rear of the bridge crane, the No. 2 crane 12 and the No. 3 crane 13 are used to lift the enclosure from the rear of the bridge crane to the bridge construction area, and the No. 1 crane 8 is used to arrange the enclosure and other auxiliary equipment;

[0079] S3.3, such as Fig.17As shown, the position of the drilling rig is adjusted according to the pre-drilling position, and after the drilling rig is adjusted and aligned by crane No. 1 8, drilling construction begins, and the mud enters the mud tank through a special pipeline or the "all-steel casing wall water drilling construction method" is used. The waste slag is transported back to the slag discharge car 17 at the rear of the bridge crane by crane No. 2 12 and crane No. 3 13, and then transported to the designated waste slag site;

[0080] S3.4, such as Fig.18 As shown in the figure, after the drilling rig construction meets the standards, the drill and steel casing are lifted, and the pile foundation steel cage is lifted into the hole by the fishing method;

[0081] S3.5, such as Fig.19 As shown, pile foundation concrete pouring construction;

[0082] S3.5.1, the steam pump truck 18 and the concrete tank truck 19 drive to the beam lifting point and use a large-tonnage elevator to lift them to the bridge deck;

[0083] S3.5.2, the pump truck 18 is driven to the tail of the middle leg 2 of the bridge crane, and the support pad is fixed in place. The width of the beam surface meets the working surface of the pump truck 18;

[0084] S3.5.3, concrete tank truck 19 starts pouring work after the 4 pile foundation pouring is completed, the steam pump truck 18 and concrete tank truck 19 return;

[0085] S3.6, complete the remaining pile foundations in the same manner; during the pile foundation curing stage, hoist the drilling rig, drilling rig support platform and other auxiliary equipment to the rear of the bridge crane and exit.

[0086] , the foundation construction includes the following steps:

[0087] S4.1, after the foundation pit of the cap is excavated, the pile head is manually broken and the pile head steel bar is processed in a circular shape;

[0088] S4.2, compaction of the foundation of the cap;

[0089] S4.3, the cap formwork is transported from the tail of the bridge crane to the cap construction site by crane No. 2 12 and crane No. 3 13, and installed and fixed in place;

[0090] S4.4, tying steel bars: hoist from the rear of the bridge erecting machine to the foundation construction site through crane No. 2 12 and crane No. 3 13, and complete all steel bar tying, such as Fig. 20 As shown;

[0091] S4.5, pouring of concrete for the cap; Fig.21 As shown,

[0092] S4.5.1, the steam pump truck 18 and the concrete tank truck 19 drive to the beam lifting point and use a large-tonnage elevator to lift them to the bridge deck;

[0093] S4.5.2, the pump truck 18 is driven to the tail of the middle leg 2 of the bridge crane, and the support pad is fixed in place. The width of the beam surface meets the working surface of the pump truck 18;

[0094] S4.5.3, concrete tanker 19 starts pouring work,

[0095] S4.5.4, after the pouring of the cap concrete is completed, the steam pump truck 18 and the concrete tank truck 19 return;

[0096] 4.6. During the curing stage of the pedestal, the pedestal steel formwork and other auxiliary equipment will be hoisted back to the tail of the bridge crane and removed from the site; the foundation surface of the pedestal pier will be roughened and the pedestal will be cleaned.

[0097] , Bridge pier construction: In this embodiment, the bridge pier is constructed by cast-in-place method, which specifically includes the following steps:

[0098] S5.1, measure the bearing surface and make marks;

[0099] S5.2, such as Fig. 22 As shown, the pier formwork support and the standard sections of the green enclosure of the working well are hoisted one by one from the rear of the bridge crane to the construction position of the pier, and then assembled and installed in sections by using the No. 1 crane 8;

[0100] S5.3, tying the segmented pier body steel bars; hoisting the pier body steel bars one by one from the tail of the bridge erecting machine to the pier body section by means of No. 2 crane 12 and No. 3 crane 13, and tying them;

[0101] S5.4, such as Fig.23 As shown, the segmented pier body is poured with concrete; the segmented pier body is poured by concrete pump trucks and concrete tank trucks;

[0102] S5.5, construct the piers in sections according to the pier height, and complete the construction of the entire pier body according to steps S5.2, S5.3, and S5.4;

[0103] S5.6, during the pier curing stage, the brackets, formwork, working wells, etc. are dismantled one by one by crane No. 2 12 and crane No. 3 13; hoisted back to the rear of the bridge crane and withdrawn; Fig.24 As shown;

[0104] S5.7. After the pier construction is completed, the construction site must be strictly cleaned under each pier, all construction debris must be cleaned up, and the natural ecological original appearance must be restored as much as possible. The front leg 1 of the bridge erection machine is ready to pass through the hole and prepare for beam erection.

[0105] , bridge erection machine erects beams: after the strength of the bridge pier reaches a certain level, the beams are erected. The specific steps include:

[0106] S6.1, e.g. Fig.25As shown, after the pier construction is completed, the suspended leg 2 is moved forward 15m to be close to the front leg 1, and then the middle leg 2 is supported;

[0107] S6.2, such as Fig.26 As shown, the front outrigger 1 is retracted, and the front outrigger 1 is driven forward 30m to the front axle platform beam position, and is accurately and firmly supported in place;

[0108] S6.3, e.g. Fig. 27 As shown, the segmental beam is transported to the beam lifting point in sections, and the segmental beam is placed on the assembly platform 21 by a beam lifting machine to complete the assembly and expansion of the box beam 20; after the bridge joints are completed and the concrete strength reaches the standard, the box beam 20 is lifted to the bridge deck beam transport vehicle 14 by a beam lifting machine;

[0109] S6.4, e.g. Fig.28 As shown, when the beam transport vehicle 14 approaches the position of the bridge erecting machine, the rear support leg 3 is flipped, and the No. 2 crane 12 and the No. 3 crane 13 are driven to the front of the bridge erecting machine, exceeding the position of the front support leg 1; the front beam transport vehicle 14 slowly moves to the beam lifting position of the front beam crane 4 and stops.

[0110] S6.5, such as Fig.28 As shown, the front beam crane 4 lifts the front part of the box beam 20, and the front beam crane 4 and the beam transport vehicle run synchronously; Fig.29 As shown, the main vehicle of the beam transport vehicle moves to the beam lifting position of the rear beam crane 5, supports the beam transport vehicle support cylinder, and places the rear support legs 3 on the beam transport vehicle frame. The rear beam crane 5 lifts the tail of the box beam, and the front and rear beam cranes 5 operate synchronously.

[0111] S6.6, such as Fig.30 As shown, the front beam crane 4 and the rear beam crane 5 lift the box beam 20 and move it forward to the span to be erected, and drop the beam in position to complete the erection of the box beam 20; after the outrigger 3 is flipped, the beam transport vehicle 14 returns to the beam lifting point to transport the beam; the erection of this span of the bridge is completed;

[0112] The cantilever of the fishing method bridge-building machine passes through the hole, preparing to enter the next fishing method cycle construction operation.

[0113] In another embodiment, the bridge piers can be prefabricated and assembled. Although the difficulty of butt-jointed installation of assembled bridge piers is higher than that of cast-in-place method, it can improve construction efficiency.

[0114] Environmental protection measures taken during the construction process include:

[0115] 1. If the mud wall protection method is adopted, the mud water in the pile foundation construction will enter the closed mud box at the bottom through a special pipeline and will never flow into the polluted river;

[0116] 2. All noise-generating equipment has a closed working environment, including the bridge construction work pit, which is all enclosed with green woven cloth;

[0117] 3. Sand and gravel that are prone to generate dust should be washed with water. In summer, sprinkler trucks are used to frequently spray water on highways to prevent dust.

[0118] 4. According to the design requirements, the slag should be transported to the designated waste dump of the environmental protection system in a timely manner, and the construction site should not store large amounts of waste slag.

[0119] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fishing bridge erecting machine, comprising a front outrigger, a middle outrigger, a rear outrigger, a front beam crane, a rear beam crane and a single guide beam, wherein the front beam crane and the rear beam crane are located on the single guide beam, and characterized in that: It also includes a No. 1 traveling crane and a retractable front auxiliary support leg, the front auxiliary support leg is located at the front end of the single guide beam, and a longitudinal short beam is respectively provided on both sides of the front of the single guide beam, and the short beam is fixedly connected to the single guide beam through a cross beam. The bridge frame of the No. 1 traveling crane can run longitudinally along the track laid on the two short beams, and the lifting trolley of the No. 1 traveling crane can run transversely along the track laid on the bridge frame; The cross beam comprises a front cross beam and a rear cross beam, the rear cross beam is higher than the front cross beam, one end of the front cross beam is fixedly connected to the side surface of the single guide beam, and the other end of the front cross beam is fixedly connected to the side surface of the short beam; One end of the rear cross beam is fixedly connected to the side surface of the single guide beam, and the other end of the rear cross beam is fixedly connected to the top surface of the short beam; It also includes carriage No. 2 and carriage No. 3, which are mounted on a single guide beam and can run longitudinally along the single guide beam to between two short beams, and the running tracks of carriage No. 2 and carriage No. 3 are longitudinally laid on the lower ear beam of the single guide beam.

2. The fishing bridge erecting machine according to claim 1, characterized in that: The front auxiliary support leg includes a telescopic bracket, a supporting steel pillow beam installed at the lower end of the telescopic bracket, and a supporting plate pillow beam; the top surface of the supporting plate pillow beam is connected to the bottom surface of the supporting steel pillow beam, and a plurality of gripping nails are arranged on the bottom surface of the supporting plate pillow beam.

3. The fishing bridge erecting machine according to claim 2, characterized in that: The area of ​​the supporting plate bolster is larger than the area of ​​the supporting steel bolster.

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