CN109183601B - Telescopic intelligent multifunctional inverted arch trestle and construction method using trestle - Google Patents

Telescopic intelligent multifunctional inverted arch trestle and construction method using trestle Download PDF

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Publication number
CN109183601B
CN109183601B CN201811257126.1A CN201811257126A CN109183601B CN 109183601 B CN109183601 B CN 109183601B CN 201811257126 A CN201811257126 A CN 201811257126A CN 109183601 B CN109183601 B CN 109183601B
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inverted arch
trestle
pedal
supporting leg
forwards
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CN109183601A (en
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刘宏伟
谢汶潘
崔海强
谢强
刘辉
楚松
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Hebei Chuangheng Intelligent Equipment Technology Co ltd
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Hebei Chuangheng Intelligent Equipment Technology Co ltd
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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
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/124—Folding or telescopic bridges; Bridges built up from folding or telescopic sections
    • 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
    • E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
    • 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
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention belongs to the technical field of tunnel trestle and discloses a telescopic intelligent multifunctional inverted arch trestle and a construction method using the trestle. The main technical characteristics are as follows: the connecting bridge comprises a left main beam, a right main beam, a front cross beam, a rear cross beam and a connecting beam, wherein the front pedal is positioned above the connecting beam, and the front pedal is connected with the connecting beam through a push-pull mechanism. Firstly, placing a front supporting leg in an initially dug inverted arch, placing a rear wheel of a trestle on a manufactured flat road surface, firstly, digging the inverted arch forwards for a certain distance, extending a front pedal forwards to enable the front end of the front pedal to be exactly lapped in front of the inverted arch, transporting materials in front of the inverted arch outwards through the front pedal, a connecting bridge body and the rear pedal, retracting the front pedal after a certain distance is dug forwards in a tunnel, continuing to dug the inverted arch forwards, and then extending the front pedal, so that the construction progress is accelerated, and the construction period is shortened; the cement curing time is fully satisfied, and the engineering quality is improved.

Description

Telescopic intelligent multifunctional inverted arch trestle and construction method using trestle
Technical Field
The invention belongs to the technical field of trestle, and particularly relates to a telescopic intelligent multifunctional inverted arch trestle and a construction method using the trestle.
Background
With the rapid development of the economy of China, various infrastructures of China are continuously developed and perfected, and due to the fact that the terrains and regions are complex, a large number of tunnels are required to be built when infrastructures such as roads, railways and the like are built so as to meet production and living requirements. In tunnel construction, in order to shorten the construction period, the bottom of a tunnel needs to be lined with concrete when the front of the tunnel is excavated, but earthwork or stones generated by excavation need to be transported out of the tunnel through the tunnel section being lined, so that a tunnel trestle is developed to realize the transportation problem of the concrete lining section. The large tunneling interference of the construction inverted arch is a great difficulty which cannot be well solved in domestic tunnel construction, and most tunnel constructions adopt a half-side construction method or a simple trestle method for inverted arch construction. The existing trestle comprises a rear pedal, a connecting bridge body and a front pedal, wherein the connecting bridge body comprises a left main beam, a right main beam, a front beam, a rear beam and a connecting beam, front supporting legs are arranged below the front beam, a trestle rear wheel is arranged below the rear beam, the front pedal and the rear pedal are fixed with the connecting bridge body, and each section (generally 3 meters) is excavated, so that the trestle needs to be moved forwards once, and the method has the following defects: firstly, when the trestle moves forwards, each working surface stops working, so that the construction progress is influenced, and the construction period is prolonged; secondly, because the rear pedal of the trestle is positioned on the manufactured flat road surface, the advanced excavating machinery is adopted, the excavating progress is faster, the time for excavating the inverted arch of 3 meters is greatly shortened, but the cement curing time is long, the trestle can be moved forwards only after the cement at the rear of the trestle is cured, and various working procedures are stopped for curing the cement when the cement at the rear of the trestle is cured.
Disclosure of Invention
The invention aims to provide a telescopic intelligent multifunctional inverted arch trestle with high construction progress and high construction quality.
In order to solve the problems, the telescopic intelligent multifunctional inverted arch trestle adopts the following technical scheme: including back footboard, connecting bridge body and preceding footboard, the connecting bridge body includes left girder, right girder, front beam, rear beam and tie-beam the front beam below is provided with preceding supporting leg the rear beam below is provided with landing stage rear wheel, preceding footboard is located the tie-beam top, preceding footboard with connect through push-pull mechanism between the tie-beam, push-pull mechanism is including being close to the cylinder frame of front beam front end is provided with the cylinder of being connected with power motor on this cylinder frame, is provided with the top hydro-cylinder in this cylinder frame below, the ejector pin of this top hydro-cylinder with cylinder frame fixed connection should go up the top hydro-cylinder with the front beam is fixed, preceding footboard is located the cylinder top.
The additional technical characteristics are as follows:
the front supporting legs can stretch out and draw back up and down, a middle supporting mechanism is arranged below the left main beam and the right main beam, the middle supporting mechanism comprises supporting frames positioned at two sides and supporting plates positioned between the two supporting frames, a track plate capable of moving left and right along the supporting plates is arranged above the supporting plates, a main beam advancing track is arranged above the track plate, supporting leg sleeves are arranged below the supporting frames, middle supporting legs capable of stretching out and drawing back up and down are arranged in the supporting leg sleeves, transverse adjusting oil cylinders are respectively arranged on the supporting frames at two sides, transverse ejector rods of the two transverse adjusting oil cylinders are respectively propped against two transverse ends of the track plate, the transverse adjusting oil cylinders are in control connection with a control mechanism, rack tracks are arranged above the left main beam and the right main beam along the front-rear direction, gears matched with the rack tracks are arranged on the supporting frames, and the gears are in power connection with a power mechanism through a power transmission mechanism;
a refuge escape channel is arranged in the left main beam or/and the right main beam;
the section of the refuge escape passage is oval or rectangular with long vertical direction;
a position signal transmitter is arranged in the refuge escape passage.
The second technical problem to be solved by the invention is to provide a construction method using the telescopic intelligent multifunctional inverted arch trestle.
In order to solve the technical problems, the method for constructing the telescopic intelligent multifunctional inverted arch trestle comprises the following steps:
first, excavating an inverted arch and installing a telescopic intelligent multifunctional inverted arch trestle
Firstly, excavating an inverted arch, placing front supporting legs in the excavated inverted arch, and placing rear wheels of a trestle on the manufactured flat road surface;
second, the inverted arch is continuously excavated forwards
Continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle;
third, the front pedal of the telescopic intelligent multifunctional inverted arch trestle is extended forwards
The ejector rod of the ejection cylinder is ejected upwards, the roller moves upwards to be ejected below the front pedal, the roller is driven to rotate by the power motor to drive the front pedal to move forwards, the front end of the front pedal is lapped on the front end ground of the inverted arch, and then the ejector rod of the ejection cylinder is retracted, so that the rear part of the front pedal is pressed on the connecting beam;
fourth, the working surface of the front end of the inverted arch works
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel;
fifthly, retracting the front pedal, and continuing to excavate the inverted arch;
after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod of the ejector cylinder is ejected upwards, the roller is ejected upwards under the front pedal, the roller is driven by the power motor to rotate reversely, the front pedal is driven to retract, the front pedal is retracted, and the inverted arch is continuously excavated forwards for a certain distance;
sixthly, extending the front pedal of the telescopic intelligent multifunctional inverted arch trestle forwards
The roller is driven to rotate by the power motor to drive the front pedal to extend forwards, so that the front end of the front pedal is lapped on the front end ground of the inverted arch;
seventh, the working surface of the front end of the inverted arch is worked, and the pouring and other works are completed in the inverted arch
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch;
eighth, repeating the second to seventh steps until the front pedal extends to the set longest length;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
The front supporting legs are placed at the forefront part of the inside of the excavated inverted arch, and the rear wheels of the trestle are placed on the manufactured flat road surface;
and tenth, repeating the second to ninth steps until the construction is completed.
For a telescopic intelligent multifunctional inverted arch trestle with a transverse adjusting oil cylinder, the construction method using the telescopic intelligent multifunctional inverted arch trestle comprises the following steps of:
first, excavating an inverted arch and installing a telescopic intelligent multifunctional inverted arch trestle
Firstly, excavating an inverted arch, placing front supporting legs in the excavated inverted arch, and placing rear wheels of a trestle on the manufactured flat road surface;
second, the inverted arch is continuously excavated forwards
Continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle;
third, the front pedal of the telescopic intelligent multifunctional inverted arch trestle is extended forwards
The ejector rod of the ejection cylinder is ejected upwards, the roller moves upwards to be ejected below the front pedal, the roller is driven to rotate by the power motor to drive the front pedal to move forwards, the front end of the front pedal is lapped on the front end ground of the inverted arch, and then the ejector rod of the ejection cylinder is retracted, so that the rear part of the front pedal is pressed on the connecting beam;
fourth, the working surface of the front end of the inverted arch works
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel;
fifthly, retracting the front pedal, and continuing to excavate the inverted arch;
after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod of the ejector cylinder is ejected upwards, the roller is ejected upwards under the front pedal, the roller is driven by the power motor to rotate reversely, the front pedal is driven to retract, the front pedal is retracted, and the inverted arch is continuously excavated forwards for a certain distance;
sixthly, extending the front pedal of the telescopic intelligent multifunctional inverted arch trestle forwards
The roller is driven to rotate by the power motor to drive the front pedal to extend forwards, so that the front end of the front pedal is lapped on the front end ground of the inverted arch;
seventh, the working surface of the front end of the inverted arch is worked, and the pouring and other works are completed in the inverted arch
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch;
eighth, repeating the second to seventh steps until the front pedal extends to the set longest length;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
Step one, the middle supporting mechanism is moved to be close to the front supporting leg
Detecting whether the middle supporting mechanism is close to the front supporting leg or not, if the middle supporting mechanism is not close to the front supporting leg, driving a gear on the middle supporting mechanism to rotate through a power mechanism, and enabling the gear to move on a rack track so that the middle supporting mechanism moves to the rear of the front supporting leg;
step two, supporting the front weight of the trestle by using the middle supporting legs
The middle supporting leg is extended out of the supporting leg sleeve, so that the lower end face of the middle supporting leg is contacted with the ground, and then the front supporting leg is retracted, so that the lower end face of the front supporting leg is separated from the ground;
step three, the connecting bridge body is moved forward and the direction is adjusted according to the requirement
The trestle is provided with power by a trestle rear wheel positioned on the ground to slide forwards along a track plate of the middle supporting mechanism until reaching a set position; in the advancing process, when the trestle position deflects, the control mechanism controls the ejector rod of the transverse adjusting oil cylinder to transversely push against the track plate, and the track plate transversely moves along the supporting plate, so that the trestle direction is adjusted;
step four, the front supporting leg supports the front weight of the trestle
After reaching the position, the front supporting leg stretches out, the lower end of the front supporting leg is contacted with the ground, and the middle supporting leg stretches back into the supporting leg sleeve;
fifth step, resetting the intermediate support mechanism
Controlling a gear above the support frame to slide forwards along rack tracks above the left main beam and the right main beam until the middle support mechanism is close to the rear of the front support legs;
and tenth, repeating the second to ninth steps until the construction is completed.
Compared with the prior art, the telescopic intelligent multifunctional inverted arch trestle provided by the invention has the following advantages: the front pedal is positioned above the connecting beam, the front pedal is connected with the connecting beam through a push-pull mechanism, the push-pull mechanism comprises a roller frame close to the front end of the front beam, a roller connected with a power motor is arranged on the roller frame, an overhead cylinder is arranged below the roller frame, an ejector rod of the overhead cylinder is fixedly connected with the roller frame, the overhead cylinder is fixed with the front beam, the front pedal is positioned above the roller, an inverted arch is firstly excavated, the front supporting leg is placed in the inverted arch, and the rear wheel of the trestle is placed on a flat road surface which is already excavated; continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle; the ejector rod of the ejection cylinder is ejected upwards, the roller moves upwards to be ejected below the front pedal, the roller is driven to rotate by the power motor to drive the front pedal to move forwards, the front end of the front pedal is lapped on the front end ground of the inverted arch, and then the ejector rod of the ejection cylinder is retracted, so that the rear part of the front pedal is pressed on the connecting beam; the front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel; after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod of the ejector cylinder is ejected upwards, the roller is ejected upwards under the front pedal, the roller is driven by the power motor to rotate reversely, the front pedal is driven to retract, the front pedal is retracted, and the inverted arch is continuously excavated forwards for a certain distance; the roller is driven to rotate by the power motor to drive the front pedal to extend forwards, so that the front end of the front pedal is lapped on the front end ground of the inverted arch; the front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch; repeating the steps until the front pedal extends to the set longest length; the front supporting legs are placed at the forefront part of the inside of the excavated inverted arch, the rear wheels of the trestle are placed on the manufactured flat road surface until the construction is completed, the inverted arch is generally excavated for 3 meters each time, the total length of the front pedal is 17 meters, the final extension length is 12 meters, the inverted arch is excavated forward every 3 meters, the inverted arch is pushed by the method, the front pedal is fully retracted after the whole 12 meters of travel of the front pedal is completed, the trestle is moved forward for 12 meters integrally, the moving times of the trestle are reduced by more than 3 times, the moving time is greatly shortened, the construction progress is accelerated, and the construction period is shortened; the cement curing time is fully satisfied, and the engineering quality is improved; the front supporting legs can stretch up and down, the middle supporting mechanisms are arranged below the left main beam and the right main beam and comprise supporting frames positioned at two sides and supporting plates positioned between the two supporting frames, a track plate capable of moving left and right along the supporting plates is arranged above the supporting plates, a main beam advancing track is arranged above the track plate, supporting leg sleeves are arranged below the supporting frames, middle supporting legs capable of stretching up and down are arranged in the supporting leg sleeves, transverse adjusting oil cylinders are respectively arranged on the supporting frames at two sides, transverse ejector rods of the two transverse adjusting oil cylinders are respectively propped against the two transverse ends of the track plate, the transverse adjusting oil cylinders are in control connection with a control mechanism, rack tracks are arranged above the left main beam and the right main beam along the front-rear direction, gears matched with the rack tracks are arranged on the supporting frames, the gears are in power connection with a power transmission mechanism, when the trestle moves forwards, whether the middle supporting mechanism is close to the front supporting legs or not, if the middle supporting mechanism is not close to the front supporting legs, the middle supporting mechanism drives the middle supporting mechanism to move to the front supporting legs through the gears on the power mechanism, and the racks are enabled to move to the front supporting legs through the gears and the middle supporting mechanism; the middle supporting leg is extended out of the supporting leg sleeve, so that the lower end face of the middle supporting leg is contacted with the ground, and then the front supporting leg is retracted, so that the lower end face of the front supporting leg is separated from the ground; the trestle is provided with power by a trestle rear wheel positioned on the ground to slide forwards along a track plate of the middle supporting mechanism until reaching a set position; in the advancing process, when the trestle position deflects, the control mechanism controls the ejector rod of the transverse adjusting oil cylinder to transversely push against the track plate, and the track plate transversely moves along the supporting plate, so that the trestle direction is adjusted; after reaching the position, the front supporting leg stretches out, the lower end of the front supporting leg is contacted with the ground, and the middle supporting leg stretches back into the supporting leg sleeve; controlling a gear above the support frame to slide forwards along rack tracks above the left main beam and the right main beam until the middle support mechanism is close to the rear of the front support legs; in the advancing process, the trestle can automatically correct the advancing direction, so that the trestle is more convenient to adjust, the labor intensity is reduced, and the construction progress is quickened; thirdly, as the left main girder or/and the right main girder are provided with the refuge escape channel, when workers find that accidents such as falling rocks or collapse are about to happen, the workers can quickly and successively drill into the refuge escape channel, so that the accidents are effectively avoided, after the accidents happen, external rescue workers can supply food and water to the inner workers through the refuge escape channel, the refuge escape channel can also play a role in ventilation, and the inside workers cannot be choked due to oxygen deficiency, and the left main girder or/and the right main girder are of hollow structures, so that the weight of the workers is reduced, the girder materials are saved, and the bending strength of the left main girder and the right main girder is also improved; fourth, because the section of the refuge escape channel is oval or rectangular with long vertical direction, personnel can walk or crawl at the waist of a cat in the refuge escape channel, the travelling speed is high, and the compressive capacity of the left main girder and the right main girder in the vertical direction is high; fifthly, as the position signal transmitter is arranged in the refuge escape channel, when an accident occurs, a search and rescue person can easily find the position needing search and rescue according to the position signal transmitter, so that the rescue time is shortened.
Drawings
FIG. 1 is a schematic diagram of a telescopic intelligent multifunctional inverted arch trestle;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a side view of a telescoping intelligent multi-function inverted arch trestle;
FIG. 4 is an enlarged view of FIG. 3 at D;
FIG. 5 is a front view of a telescoping intelligent multi-function inverted arch trestle;
FIG. 6 is a front view of a telescoping intelligent multi-function inverted arch trestle;
FIG. 7 is an enlarged view of FIG. 1 at B;
fig. 8 is an enlarged view of fig. 1 at C.
Detailed Description
The structure and the use principle of the telescopic intelligent multifunctional inverted arch trestle and the construction method using the trestle are further described in detail below with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, 2, 3, 4, 5 and 6, the telescopic intelligent multifunctional inverted arch trestle of the invention comprises a rear pedal 1, a connecting bridge body 2 and a front pedal 3, wherein the connecting bridge body 2 comprises a left main beam 4, a right main beam 5, a front cross beam 6, a rear cross beam 7 and a connecting beam 8, a front supporting leg 9 is arranged below the front cross beam 6, a trestle rear wheel 10 is arranged below the rear cross beam 7, the front pedal 3 is positioned above the connecting beam 8, the front pedal 3 is connected with the connecting beam 8 through a push-pull mechanism 11, the push-pull mechanism 11 comprises a roller frame 12 near the front end of the front cross beam 6, a roller 14 connected with a power motor 13 is arranged on the roller frame 12, an overhead cylinder 15 is arranged below the roller frame 12, an ejector rod 16 of the overhead cylinder 15 is fixedly connected with the roller frame 12, the overhead cylinder 15 is fixedly connected with the front cross beam 6, and the front pedal 3 is positioned above the roller 14.
Firstly, excavating an inverted arch, placing front supporting legs 9 in the excavated inverted arch, and placing rear wheels 10 of a trestle on the manufactured flat road surface; continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle; the ejector rod 16 of the jacking oil cylinder 15 is jacked up, the roller 14 is jacked up below the front pedal 3, the roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to move forward, the front end of the front pedal 3 is lapped on the ground at the front end of the inverted arch, and then the ejector rod 16 of the jacking oil cylinder 15 is retracted, so that the rear part of the front pedal 3 is pressed on the connecting beam 8; the front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel; after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod 16 of the ejector cylinder 15 is pushed upwards, the roller 14 is pushed upwards under the front pedal 3, the roller 14 is driven by the power motor 13 to rotate reversely, the front pedal 3 is driven to retract, and after the front pedal 3 is retracted, the inverted arch is continuously excavated forwards for a certain distance; the roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to extend forwards, so that the front end of the front pedal 3 is lapped on the front end ground of the inverted arch; the front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch; repeating the steps until the front pedal extends to the set longest length; the front supporting leg 9 is placed at the forefront of the inner part of the excavated inverted arch, and the rear wheels of the trestle are placed on the manufactured flat road surface until the construction is completed.
The inverted arch is generally excavated for 3 meters each time, the total length of the front pedal 3 is 17 meters, the final extension length is 12 meters, the inverted arch is excavated forward every 3 meters, so that the inverted arch is pushed by the inverted arch, after the whole 12 meters of travel of the front pedal 3 is finished, the front pedal 3 is fully retracted, the whole trestle is moved forward for 12 meters, the number of times of movement of the trestle is reduced by more than 3 times, the movement time is greatly shortened, the construction progress is accelerated, and the construction period is shortened; the cement curing time is fully satisfied, and the engineering quality is improved.
As shown in fig. 1, 3, 5, 6, 7 and 8, the front supporting leg 9 is of an up-down telescopic structure, an intermediate supporting mechanism 17 is arranged below the left main beam 4 and the right main beam 5, the intermediate supporting mechanism 17 comprises supporting frames 18 positioned at two sides and a supporting pallet 19 positioned between the two supporting frames 18, a track plate 20 capable of moving left and right along the supporting pallet 19 is arranged above the supporting pallet 19, a main beam travelling track 21 is arranged above the track plate 20, supporting leg sleeves 22 are arranged below the supporting frames 18, middle supporting legs 23 capable of stretching up and down are arranged in the supporting leg sleeves 22, transverse adjusting cylinders 24 are respectively arranged on the supporting frames 18 at two sides, transverse ejector rods 25 of the two transverse adjusting cylinders 24 are respectively propped against the transverse two ends of the track plate 20, the transverse adjusting cylinders 24 are in control connection with a control mechanism 26, rack tracks 27 are arranged above the left main beam 4 and the right main beam 5 along the front-rear direction, gears 28 matched with the rack tracks 27 are arranged on the supporting frames 18, the gears 28 are connected with a power transmission mechanism 30 through the power transmission mechanism, when the power transmission mechanism 30 is in power connection with the power mechanism, whether the front supporting mechanism moves towards the front supporting mechanism 17, the front supporting mechanism is close to the front supporting leg 17, and the front supporting leg 17 is driven by the power mechanism to move towards the middle supporting leg 17, if the front supporting leg 17 is not to move towards the middle supporting mechanism 17, and the front supporting leg 17 is driven by the middle supporting leg 17, and the front supporting leg 17 is driven by the power mechanism to move towards the middle supporting mechanism 9, if the front supporting leg 17 is driven by the front supporting leg 17, and is driven by the front supporting leg 17; extending the middle supporting leg 23 from the supporting leg sleeve 22 to enable the lower end surface of the middle supporting leg 23 to contact the ground, and retracting the front supporting leg 9 to enable the lower end surface of the front supporting leg 9 to be separated from the ground; the trestle is driven by the rear wheels 10 of the trestle on the ground to slide forwards along the track plate 20 of the middle supporting mechanism 17 until reaching the set position; in the advancing process, when the trestle position deflects, the control mechanism 26 controls the ejector rod of the transverse adjusting oil cylinder 24 to transversely press the track plate 20, and the track plate 20 transversely moves along the supporting plate 19, so that the trestle direction is adjusted; after reaching the position, the front supporting leg 9 extends out, the lower end of the front supporting leg 9 contacts the ground, and the middle supporting leg 23 retracts into the supporting leg sleeve 22; the gear 28 above the control support 18 slides forward along the rack tracks 27 above the left main beam 4 and the right main beam 5 until the middle support mechanism 17 approaches the rear of the front support legs 9; in the advancing process, the trestle can automatically correct the advancing direction, so that the adjustment is more convenient, the labor intensity is reduced, and the construction progress is quickened.
As shown in fig. 1, 5 and 6, a refuge escape passage 31 is provided in the left main girder 4 or/and the right main girder 5. When workers find that accidents such as falling rocks or collapse are about to happen, the workers can quickly and successively drill into the evacuation escape channel 31, the accidents are effectively avoided, after the accidents happen, external rescue workers can supply food and water to the inner workers through the evacuation escape channel 31, the evacuation escape channel 31 can play a role in ventilation, the passengers cannot be choked due to oxygen deficiency of the inner workers, the left main girder or/and the right main girder are of hollow structures, the weight of the workers is reduced, girder materials are saved, and bending strength of the left main girder and the right main girder is improved.
The section of the evacuation escape channel 31 is oval or rectangular with long vertical direction, so that personnel can walk or crawl at the waist of the cat in the evacuation escape channel, the travelling speed is high, and the compressive capacity of the left main girder and the right main girder in the vertical direction is high.
A position signal transmitter 32 is arranged in the refuge escape channel 31, so that a search and rescue person can easily find the position to be searched and rescue according to the position signal transmitter when an accident occurs, and the rescue time is shortened.
The construction method of the telescopic intelligent multifunctional inverted arch trestle comprises the following steps:
first, excavating an inverted arch and installing a telescopic intelligent multifunctional inverted arch trestle
Firstly, excavating an inverted arch, placing front supporting legs 9 in the excavated inverted arch, and placing rear wheels 10 of a trestle on the manufactured flat road surface;
second, the inverted arch is continuously excavated forwards
Continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle;
third, the front pedal of the telescopic intelligent multifunctional inverted arch trestle is extended forwards
The ejector rod 16 of the jacking oil cylinder 15 is jacked up, the roller 14 is jacked up below the front pedal 3, the roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to move forward, the front end of the front pedal 3 is lapped on the ground at the front end of the inverted arch, and then the ejector rod 16 of the jacking oil cylinder 15 is retracted, so that the rear part of the front pedal 3 is pressed on the connecting beam 8;
fourth, the working surface of the front end of the inverted arch works
The front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel;
fifthly, retracting the front pedal, and continuing to excavate the inverted arch;
after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod 16 of the ejector cylinder 15 is pushed upwards, the roller 14 is pushed upwards under the front pedal 3, the roller 14 is driven by the power motor 13 to rotate reversely, the front pedal 3 is driven to retract, and after the front pedal 3 is retracted, the inverted arch is continuously excavated forwards for a certain distance;
sixthly, extending the front pedal of the telescopic intelligent multifunctional inverted arch trestle forwards
The roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to extend forwards, so that the front end of the front pedal 3 is lapped on the front end ground of the inverted arch;
seventh, the working surface of the front end of the inverted arch is worked, and the pouring and other works are completed in the inverted arch
The front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch;
eighth, repeating the second to seventh steps until the front pedal extends to the set longest length;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
The front supporting leg 9 is placed at the forefront part of the inner part of the excavated inverted arch, and the rear wheels of the trestle are placed on the manufactured flat road surface;
and tenth, repeating the second to ninth steps until the construction is completed.
For a telescopic intelligent multifunctional inverted arch trestle with a transverse adjusting oil cylinder, the construction method using the telescopic intelligent multifunctional inverted arch trestle comprises the following steps of:
first, excavating an inverted arch and installing a telescopic intelligent multifunctional inverted arch trestle
Firstly, excavating an inverted arch, placing front supporting legs 9 in the excavated inverted arch, and placing rear wheels 10 of a trestle on the manufactured flat road surface;
second, the inverted arch is continuously excavated forwards
Continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle;
third, the front pedal of the telescopic intelligent multifunctional inverted arch trestle is extended forwards
The ejector rod 16 of the jacking oil cylinder 15 is jacked up, the roller 14 is jacked up below the front pedal 3, the roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to move forward, the front end of the front pedal 3 is lapped on the ground at the front end of the inverted arch, and then the ejector rod 16 of the jacking oil cylinder 15 is retracted, so that the rear part of the front pedal 3 is pressed on the connecting beam 8;
fourth, the working surface of the front end of the inverted arch works
The front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel;
fifthly, retracting the front pedal, and continuing to excavate the inverted arch;
after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod 16 of the ejector cylinder 15 is pushed upwards, the roller 14 is pushed upwards under the front pedal 3, the roller 14 is driven by the power motor 13 to rotate reversely, the front pedal 3 is driven to retract, and after the front pedal 3 is retracted, the inverted arch is continuously excavated forwards for a certain distance;
sixthly, extending the front pedal of the telescopic intelligent multifunctional inverted arch trestle forwards
The roller 14 is driven to rotate by the power motor 13 to drive the front pedal 3 to extend forwards, so that the front end of the front pedal 3 is lapped on the front end ground of the inverted arch;
seventh, the working surface of the front end of the inverted arch is worked, and the pouring and other works are completed in the inverted arch
The front pedal 3, the connecting bridge body 2 and the rear pedal 1 form a transportation channel on the working surface of the front end of the inverted arch, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch;
eighth, repeating the second to seventh steps until the front pedal extends to the set longest length;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
Detecting whether the intermediate support mechanism is close to the front support leg, and moving the intermediate support mechanism to be close to the front support leg
If the middle supporting mechanism 17 is not close to the front supporting leg 9, the power mechanism 30 drives the gear 28 on the middle supporting mechanism 17 to rotate, and the gear 28 moves on the rack rail 27, so that the middle supporting mechanism 17 moves to the rear of the front supporting leg 9;
step two, supporting the front weight of the trestle by using the middle supporting legs
Extending the middle supporting leg 23 from the supporting leg sleeve 22 to enable the lower end surface of the middle supporting leg 23 to contact the ground, and retracting the front supporting leg 9 to enable the lower end surface of the front supporting leg 9 to be separated from the ground;
step three, the connecting bridge body is moved forward and the direction is adjusted according to the requirement
The trestle is driven by the rear wheels 10 of the trestle on the ground to slide forwards along the track plate 20 of the middle supporting mechanism 17 until reaching the set position; in the advancing process, when the trestle position deflects, the control mechanism 26 controls the ejector rod of the transverse adjusting oil cylinder 24 to transversely press the track plate 20, and the track plate 20 transversely moves along the supporting plate 19, so that the trestle direction is adjusted;
step four, the front supporting leg supports the front weight of the trestle
After reaching the position, the front supporting leg 9 extends out, the lower end of the front supporting leg 9 contacts the ground, and the middle supporting leg 23 retracts into the supporting leg sleeve 22;
fifth step, resetting the intermediate support mechanism
The gear 28 above the control support 18 slides forward along the rack tracks 27 above the left main beam 4 and the right main beam 5 until the middle support mechanism 17 approaches the rear of the front support legs 9;
and tenth, repeating the second to ninth steps until the construction is completed.
The protection scope of the present invention is not limited to the above embodiments, and it is within the protection scope of the present invention if the structure is the same as or similar to the structure of the telescopic intelligent multifunctional inverted arch trestle of the present invention, or if the construction method using the telescopic intelligent multifunctional inverted arch trestle is the same as or similar to the method.

Claims (5)

1. The method for constructing the telescopic intelligent multifunctional inverted arch trestle is characterized by comprising the following steps of: the multifunctional telescopic intelligent inverted arch trestle comprises a rear pedal, a connecting bridge body and a front pedal, wherein the connecting bridge body comprises a left main beam, a right main beam, a front beam, a rear beam and a connecting beam, front supporting legs are arranged below the front beam, and trestle rear wheels are arranged below the rear beam, and the multifunctional intelligent inverted arch trestle is characterized in that: the front pedal is positioned above the connecting beam, the front pedal is connected with the connecting beam through a push-pull mechanism, the push-pull mechanism comprises a roller frame close to the front end of the front cross beam, a roller connected with a power motor is arranged on the roller frame, an upper top oil cylinder is arranged below the roller frame, a push rod of the upper top oil cylinder is fixedly connected with the roller frame, the upper top oil cylinder is fixedly connected with the front cross beam, and the front pedal is positioned above the roller;
the method comprises the following steps:
first, excavating an inverted arch and installing a telescopic intelligent multifunctional inverted arch trestle
Firstly, excavating an inverted arch, placing front supporting legs in the excavated inverted arch, and placing rear wheels of a trestle on the manufactured flat road surface;
second, the inverted arch is continuously excavated forwards
Continuously excavating a section of inverted arch forwards in front of the telescopic intelligent multifunctional inverted arch trestle;
third, the front pedal of the telescopic intelligent multifunctional inverted arch trestle is extended forwards
The ejector rod of the ejection cylinder is ejected upwards, the roller moves upwards to be ejected below the front pedal, the roller is driven to rotate by the power motor to drive the front pedal to move forwards, the front end of the front pedal is lapped on the front end ground of the inverted arch, and then the ejector rod of the ejection cylinder is retracted, so that the rear part of the front pedal is pressed on the connecting beam;
fourth, the working surface of the front end of the inverted arch works
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel;
fifthly, retracting the front pedal, and continuing to excavate the inverted arch;
after the front working surface of the inverted arch moves forwards for a certain distance, the ejector rod of the ejector cylinder is ejected upwards, the roller is ejected upwards under the front pedal, the roller is driven by the power motor to rotate reversely, the front pedal is driven to retract, the front pedal is retracted, and the inverted arch is continuously excavated forwards for a certain distance;
sixthly, extending the front pedal of the telescopic intelligent multifunctional inverted arch trestle forwards
The roller is driven to rotate by the power motor to drive the front pedal to extend forwards, so that the front end of the front pedal is lapped on the front end ground of the inverted arch;
seventh, the working surface of the front end of the inverted arch is worked, and the pouring and other works are completed in the inverted arch
The front pedal, the connecting bridge body and the rear pedal form a transportation channel, and the haulage vehicle is transported from the transportation channel; meanwhile, casting and other operations are completed in the inverted arch;
eighth, repeating the second to seventh steps until the front pedal extends to the set longest length;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
The front supporting legs are placed at the forefront part of the inside of the excavated inverted arch, and the rear wheels of the trestle are placed on the manufactured flat road surface;
and tenth, repeating the second to ninth steps until the construction is completed.
2. The method for constructing the multifunctional inverted arch trestle by using the telescopic intelligent according to claim 1, wherein the method comprises the following steps: the front supporting legs can stretch out and draw back up and down, a middle supporting mechanism is arranged below the left main beam and the right main beam, the middle supporting mechanism comprises supporting frames positioned at two sides and supporting plates positioned between the two supporting frames, a track plate capable of moving left and right along the supporting plates is arranged above the supporting plates, a main beam advancing track is arranged above the track plate, supporting leg sleeves are arranged below the supporting frames, middle supporting legs capable of stretching out and drawing back up and down are arranged in the supporting leg sleeves, transverse adjusting oil cylinders are respectively arranged on the supporting frames at two sides, transverse ejector rods of the two transverse adjusting oil cylinders are respectively propped against two transverse ends of the track plate, the transverse adjusting oil cylinders are in control connection with a control mechanism, rack tracks are arranged above the left main beam and the right main beam along the front-rear direction, gears matched with the rack tracks are arranged on the supporting frames, and the gears are in power connection with a power mechanism through a power transmission mechanism;
ninth step, forward moving telescopic intelligent multifunctional inverted arch trestle
Step one, the middle supporting mechanism is moved to be close to the front supporting leg
Detecting whether the middle supporting mechanism is close to the front supporting leg or not, if the middle supporting mechanism is not close to the front supporting leg, driving a gear on the middle supporting mechanism to rotate through a power mechanism, and enabling the gear to move on a rack track so that the middle supporting mechanism moves to the rear of the front supporting leg;
step two, supporting the front weight of the trestle by using the middle supporting legs
The middle supporting leg is extended out of the supporting leg sleeve, so that the lower end face of the middle supporting leg is contacted with the ground, and then the front supporting leg is retracted, so that the lower end face of the front supporting leg is separated from the ground;
step three, the connecting bridge body is moved forward and the direction is adjusted according to the requirement
The trestle is provided with power by a trestle rear wheel positioned on the ground to slide forwards along a track plate of the middle supporting mechanism until reaching a set position; in the advancing process, when the trestle position deflects, the control mechanism controls the ejector rod of the transverse adjusting oil cylinder to transversely push against the track plate, and the track plate transversely moves along the supporting plate, so that the trestle direction is adjusted;
step four, the front supporting leg supports the front weight of the trestle
After reaching the position, the front supporting leg stretches out, the lower end of the front supporting leg is contacted with the ground, and the middle supporting leg stretches back into the supporting leg sleeve;
fifth step, resetting the intermediate support mechanism
And controlling the gears above the support frame to slide forwards along the rack tracks above the left main beam and the right main beam until the middle support mechanism is close to the rear of the front support legs.
3. The method for constructing the multifunctional inverted arch trestle by using the telescopic intelligent according to claim 1, wherein the method comprises the following steps: and a refuge escape passage is arranged in the left main beam or/and the right main beam.
4. A method of constructing using a telescopic intelligent multi-functional inverted arch trestle according to claim 3, characterized in that: the section of the refuge escape passage is oval or rectangular with long vertical direction.
5. A method of constructing using a telescopic intelligent multi-functional inverted arch trestle according to claim 3, characterized in that: a position signal transmitter is arranged in the refuge escape passage.
CN201811257126.1A 2018-10-26 2018-10-26 Telescopic intelligent multifunctional inverted arch trestle and construction method using trestle Active CN109183601B (en)

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