CN114908633A - Pavement slab staggering repairing device and pavement repairing method - Google Patents

Abstract

The invention relates to pavement repairing, and discloses a pavement misalignment repairing device, comprising a clamping assembly, an adjustment mechanism and a pressure balance mechanism. The clamping assembly includes a first clamping part and a second clamping part, the first clamping part. The clamping member is connected with the adjusting mechanism capable of adjusting its position, the second clamping member is installed on the lower end of the adjusting mechanism, and the first clamping member and the second clamping member form a At the clamping position for clamping the concrete slab, one end of the first clamping member is installed with the pressure balancing mechanism, and the other end is a force-bearing end capable of bearing the force exerted by the lifting mechanism. The device has the advantages of simple structure and convenient operation, and can lift the concrete road slab to repair the road surface. It can prolong the service life of concrete pavement. In addition, the present invention also relates to a road surface repairing method comprising the road surface misalignment repairing device.

Description

Pavement misalignment repairing device and pavement repairing method

technical field

The invention relates to pavement repair, in particular to a pavement staggered repair device. In addition, the present invention also relates to a road surface repairing method using the road surface misalignment repairing device.

Background technique

The staggered platform refers to the phenomenon that the two plates produce relative vertical displacement at the joints or cracks of the cement concrete pavement. During the service process of the cement concrete pavement, due to the uncompact rolling of the subgrade, local subsidence or the combined action of the traffic load and water, the bottom of the cement concrete slab at the joints or cracks will appear void, causing the front and rear of the cement concrete. There is a height difference between the boards, forming a staggered phenomenon. Mild misalignment will cause car jumping and affect driving comfort. Serious misalignment will endanger driving safety. Therefore, after misalignment of cement concrete pavement, timely treatment should be taken to restore the usability of the road.

At present, the grinding method is widely used at home and abroad to eliminate the misalignment phenomenon. On the one hand, this method reduces the thickness of the cement concrete slab, which is easy to cause insufficient bearing capacity of the pavement at the misaligned position. On the other hand, this method does not fundamentally eliminate the misalignment. The cause is that the bottom of the cement concrete slab at the joints or cracks is empty, the cement concrete pavement slab is not in direct contact with the subgrade, and the support is insufficient. Therefore, the method of grinding cannot fundamentally solve the problem of misalignment, and after repairing by this method, the problem of misalignment will occur repeatedly, and even more serious road surface diseases will be caused by damage to the structural strength of the road surface.

In order to solve the above technical problems, it is necessary to design a new type of pavement misalignment repairing device.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a pavement misalignment repairing device, which has a simple structure and convenient operation, can lift the concrete pavement for pavement repair, and can prolong the service life of the concrete pavement.

Another aspect of the present invention provides a pavement repair method, which can eliminate the misalignment phenomenon without grinding the pavement.

In order to solve the above technical problems, one aspect of the present invention provides a road surface misalignment repairing device, which includes a clamping assembly, an adjustment mechanism and a pressure balance mechanism, and the clamping assembly includes a first clamping member and a second clamping member. The first clamping part is connected with the adjusting mechanism capable of adjusting its position; the second clamping part is installed at the lower end of the adjusting mechanism; A clamping position for clamping the concrete slab is formed between them, one end of the first clamping member is installed with the pressure balancing mechanism, and the other end is a force-bearing end capable of withstanding the force exerted by the lifting mechanism.

Preferably, stress steel is provided at the contact between the first clamping member and the lifting mechanism.

Specifically, the lifting mechanism is a hydraulic jack.

Preferably, the first clamping member includes a first structural steel and a second structural steel, the first structural steel and the second structural steel are telescopically connected, and the first structural steel is sleeved on the adjustment mechanism The end of the second structural steel away from the first structural steel is connected to the pressure balance mechanism.

Preferably, the adjusting mechanism includes an adjusting rod and a limiting member, and the limiting member cooperates with the adjusting rod to limit the position of the first clamping member.

Specifically, the adjusting rod is provided with a plurality of first positioning holes that can cooperate with the limiting member, the first structural steel is provided with a first limiting hole, and the limiting member can pass through all the first positioning holes. The first limiting hole and the corresponding first positioning hole are used to locate the height of the first structural steel.

More specifically, the distance between two adjacent first positioning holes is 5-8 cm.

Specifically, the first structural steel is sleeved on the adjusting rod, and the first structural steel is provided with a second limiting hole for locating the position of the first structural steel on the adjusting rod.

Preferably, the pressure balance mechanism includes a support rod and a support seat installed under the support rod, and the first clamping member is threadedly connected to the support rod.

Another aspect of the present invention also discloses a pavement repairing method, using the pavement misplaced repairing device described in any one of the above technical solutions, comprising the following steps:

S1. Adjust the opening and closing degree between the first clamping member and the second clamping member, clamp the concrete slab on the wrong platform, and adjust the pressure balance mechanism to make it fit with the concrete slab. the upper surface of the abutment;

S2, using the lifting mechanism to exert force on the clamping assembly to lift the staggered concrete slab so that its upper surface is level with the surface of the adjacent concrete slab;

S3, using an electric drill tool to drill a plurality of repair holes perpendicular to the surface above the concrete slab on the staggered platform;

S4, inject polyurethane foam material or quick-drying cement slurry into the repair hole until the polyurethane foam material or fast-drying cement slurry overflows the repair hole;

S5. After the polyurethane foam material or the quick-drying cement slurry is solidified, the road misalignment repairing device is removed, and the misalignment restoration is completed. Through the above-mentioned technical scheme, the beneficial effects of the present invention are as follows:

The pavement misalignment repairing device provided by the present invention can replace the grinding method to eliminate the pavement misalignment phenomenon. The device mainly includes a clamping assembly, an adjustment mechanism and a pressure balance mechanism. The used clamping assembly includes a first clamping member and a second clamping member. Two clamping parts, the first clamping part can be connected with an adjustment mechanism that can adjust its position, the second clamping part is installed at the lower end of the adjustment mechanism, and a pair of concrete slabs is formed between the first clamping part and the second clamping part In the clamping position for clamping, one end of the first clamping member is installed with a pressure balance mechanism, and the other end is the force end that can withstand the lifting mechanism. In order to maintain the uniform force of the concrete slab, the pressure balance mechanism is in contact with the upper surface of the concrete slab, generating a force opposite to the lifting mechanism, maintaining the force balance, and preventing the concrete slab from breaking due to uneven stress. The method of repairing the concrete slab after lifting it up replaces the grinding method in the prior art, the structure is simple, the use is convenient and the service life of the concrete slab can be prolonged.

In addition, the second aspect of the present invention also provides a pavement repair method, which mainly comprises using an electric drill to drill a repairing method perpendicular to the ground surface on the lifted concrete plate after the concrete slab is lifted by using the above-mentioned pavement staggered repairing device. Fill the repair hole with polyurethane foam material or quick-drying grout until it overflows, wait until the polyurethane foam or quick-drying grout solidifies and then reset the concrete slab. This method can fill the cavity at the bottom of the cement concrete slab and improve the support of the road surface. It can eliminate the height difference between the staggered concrete slab and the adjacent concrete slab from the root, and eliminate the staggered stage phenomenon without grinding the concrete slab.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

1 is a schematic structural diagram of a specific embodiment of a road surface misalignment repairing device of the present invention;

Fig. 2 is the use diagram of the road surface repair method of the present invention;

FIG. 3 is a flow chart of the road surface repairing method of the present invention.

Description of reference numerals

1 The first structural steel 12 The first limit hole

2 Second structural steel 3 Limiting pieces

4 Support rod 5 Support seat

6 Adjusting rod 61 Positioning hole

7Second clamping part 8Lifting mechanism

9 Stressed steel 10 Repair holes

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments. .

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "provided with", "installation", "connection" and "arrangement" should be construed in a broad sense, for example, connecting It can be a direct connection or an indirect connection through an intermediate medium, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate connector, or a The communication within two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. A "second" feature may expressly or implicitly include one or more of the stated feature.

In the present invention, unless otherwise stated, the directional words used such as "upper and lower" are defined by the upper and lower parts of the corresponding components, and "top and bottom" are used in the road misalignment repairing device. The direction of the reference is defined as a reference, and specifically in the accompanying drawings provided by the present invention, the azimuth or positional relationship used is based on the azimuth or positional relationship shown in the accompanying drawings, and the contact is only for the convenience of describing the present invention and simplifying the description, Instead of indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, it should not be construed as a limitation of the present invention; the orientation terms of the present invention should be understood in conjunction with the actual installation state.

As shown in FIG. 1 , one aspect of the present invention provides a road surface misalignment repairing device, which mainly includes a clamping assembly, an adjustment mechanism and a pressure balance mechanism, wherein the clamping assembly mainly includes a first clamping member and a second clamping member Part 7, the first clamping part is connected with the adjustment mechanism, and the adjustment mechanism can adjust the height of the first clamping part, the second clamping part 7 is installed on the lower end of the adjustment mechanism, the first clamping part and the second clamping part A clamping position for clamping the concrete slab is formed between the parts 7, and the distance between the first clamping part and the second clamping part 7 is adjusted by adjusting the position of the first clamping part on the adjustment mechanism, thereby Clamping different concrete slabs, one end of the first clamping member is the force end that can withstand the force exerted by the lifting mechanism 8, so that the lifting mechanism 8 can be placed so that the entire device can be driven upward by lifting the first clamping member. movement, which in turn causes the concrete slab to be lifted. The other end of the first clamping piece is connected with the pressure balance mechanism, the pressure balance mechanism is used to abut the surface of the concrete slab, and the pressure balance mechanism is used to balance the lifting force exerted by the lifting mechanism 8 on the concrete slab and the concrete slab due to its own weight. The resulting downforce prevents the concrete slab from breaking.

Referring to FIG. 1 , a stressed steel 9 is provided at the contact point between the first clamping part and the lifting mechanism 8, and the stressed steel 9 can prevent the lifting mechanism 8 from applying too much lifting force to the first clamping part and damaging the first clamping part. The clamping piece, the stress-bearing steel 9 has a protective effect on the first clamping piece, which can prolong the service life of the pavement misalignment repairing device provided by the present invention.

Specifically, the lifting mechanism 8 in the present invention may be a hydraulic jack, which refers to a jack that uses a plunger or a hydraulic cylinder as a rigid lifting member. It has the characteristics of compact structure, stable operation, large top support, and self-locking. Hydraulic jacks have strong supporting capacity. Further, hydraulic jacks can be hand cranked or electric.

As a specific embodiment of the present invention, referring to FIG. 1 , the first clamping member of the pavement misalignment repairing device includes a first structural steel 1 and a second structural steel 2, and one end of the first structural steel 1 is connected to the second structural steel. 2. Telescopic connection, the first structural steel 1 is connected with the adjustment mechanism, and the end of the second structural steel 2 away from the first structural steel 1 is connected with the pressure balance mechanism. The first clamping part is set as a telescopic structural part, and the advantage of such a design is that it can be adjusted according to the size of the concrete slab in actual use.

Specifically, as a specific embodiment of the first structural steel 1 and the second structural steel 2 in the above technical solution, the length of the first structural steel 1 can be set between 80-100 cm, and the length of its cross section can be set at Between 8-10cm, the width of the cross-section can be set between 4-6cm, and the inner wall thickness can be set between 1-2cm; while the length of the second structural steel 2 can be set between 40-60cm, the The length is set between 6-8cm, the width of the cross section is set between 3-5cm, and the inner wall thickness is set between 1-2cm.

It should be noted that the above is only a specific embodiment of the present invention, and there may be other implementation forms for the dimensions of the first structural steel 1 and the second structural steel 2, which may be selected according to specific usage conditions.

In the present invention, as shown in FIG. 1 , the adjusting mechanism may include an adjusting rod 6 and a limiting member 3 , and the position of the first clamping member on the adjusting rod 6 is adjusted by the limiting member 3 .

Specifically, as shown in FIG. 1 , the adjustment rod 6 is provided with a plurality of positioning holes 61 that can cooperate with the limiting member 3 , the first structural steel 1 is provided with a first limiting hole 12 , and the limiting member 3 The first structural steel 1 can be fixed on the adjusting rod 6 through the first limiting hole 12 and the corresponding positioning hole 61, and can be adjusted according to the position of the positioning hole 61, so as to adjust the position of the first structural steel 1, and then adjust The degree of opening and closing between the first clamping part and the second clamping part 7 .

More specifically, the distance between two adjacent positioning holes 61 may be 5-8 cm, and the diameter of the positioning holes 61 may be between 2-4 cm.

The above is only a specific embodiment of the use mode of the adjusting mechanism of the present invention. As another specific embodiment, the first structural steel 1 can be sleeved on the adjusting rod 6, and a second limit can be set on the first structural steel 1 The first structural steel 1 can slide up and down along the adjusting rod 6, and after sliding to a suitable position, tighten the bolt, and align the adjusting rod 6 In this way, there is no need to worry about the problem of insufficient adjustment accuracy due to the fixed distance between adjacent positioning holes 61 .

The above are only two specific implementations of the adjustment mechanism in the present invention, wherein the adjustment rod 6 can be a steel square steel with a length of about 80 cm or a steel round steel, and the second clamping device arranged at the lower end of the adjustment rod 6 The piece 7 may be a steel plate with a length of 8-10 cm, a width of 4-6 cm and a thickness of 1-2 cm.

Referring to FIG. 1 , the pressure balance mechanism in the present invention mainly includes a support rod 4 and a support base 5 arranged below the support rod 4. The support rod 4 is threadedly connected with the first clamping member, and the lower surface of the support base 5 is connected to the lower surface of the concrete slab. top surface contact. The pressure balance mechanism is mainly used to balance the pressure difference between the concrete slab and the lifting mechanism 8 to prevent the concrete slab from being damaged.

Specifically, the support rod 4 is threadedly connected to the end of the second structural steel 2 away from the first structural steel 1. The length of the support rod 4 is about 80 cm, and is a steel round steel with a diameter of 2-3 cm. The outer surface is provided with threads.

In addition, as a specific embodiment of the support base 5, the support base 5 can be composed of an upper cylindrical plate with a diameter of 2-4 cm at the upper part, a height of 2-4 cm and a diameter of 4-6 cm at the lower part. The upper cylindrical plate is welded with the lower cylindrical plate, and the support rod 4 is welded on the upper cylindrical plate.

The above are only some embodiments of the road surface misalignment repairing device provided by the present invention.

The second aspect of the present invention is to provide a method for repairing a road surface by using a road surface staggered repairing device. Referring to FIGS. 2 to 3 , the opening and closing degree between the first clamping member and the second clamping member 7 is adjusted first, and the The second clamping member 7 is inserted under the concrete slab where the staggered platform phenomenon occurs, and the first clamping member is adjusted to ensure that the clamping of the concrete slab is firm, and then the first structural steel 1 and the The telescopic length between the two structural steels 2, and then rotate the support rod 4 to make the lower surface of the support base 5 contact the upper surface of the concrete slab; When the clamp assembly is lifted, the upper surface of the staggered concrete slab is flush with the upper surface of the adjacent concrete slab; in the third step, use an electric drill to drill the repair hole 10 on the staggered concrete slab, and the repair hole 10 needs to be vertical In the fourth step, inject polyurethane foam material or quick-drying cement slurry into the repair hole 10 until the polyurethane foam material or fast-drying cement slurry can fill the gap between the lower surface of the staggered concrete slab and the upper surface of the ground. The gap between the gaps and the overflow of polyurethane foam material or quick-drying cement slurry from above the repair hole 10, the injection of polyurethane foam material or fast-drying cement slurry into the repair hole 10 can provide support for the misaligned concrete slabs and eliminate misalignment. The height difference between the concrete slab and the adjacent concrete slab; in the fifth step, after the polyurethane foam material or the quick-drying cement slurry is solidified, the pavement staggered repair device is removed to complete the repair.

It should be noted that the polyurethane foam material is made of isocyanate and polyether as the main raw materials, under the action of various additives such as foaming agents, catalysts, flame retardants, etc., mixed by special equipment, and foamed on site by high-pressure spraying. of high molecular weight polymers. Polyurethane foam has two types: soft foam and rigid foam. Soft foam has an open-cell structure, while rigid foam has a closed-cell structure. Soft foam is divided into two types: skinning and non-skinning. Polyurethane foam has the advantages of shock resistance and compression resistance, no cracking, no corrosion, and no falling off after curing. It can give enough supporting force to the concrete slab of the wrong platform.

The invention provides a pavement misalignment repairing device and a pavement repairing method. The fundamental reason for the misalignment of cement concrete pavement is that the bottom of the slab at the joint or crack is empty, and the bottom of the concrete slab can be filled by grouting. This method is mainly used for the void repair of non-cracks in the road surface.

The repair is carried out by directly lifting the wrong concrete slab, and the support force is increased under the concrete slab by grouting, so as to eliminate the wrong stage phenomenon, avoid the damage to the concrete slab caused by direct grinding, and shorten the duration of the concrete slab. Service life, the pavement misalignment repairing device in the present invention is simple in structure and easy to operate; the pavement repairing method is simple in method and easy to operate.

In the description of the present invention, description with reference to the terms "one embodiment", "some embodiments", "an embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example includes in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that each specific technical feature described in the above-mentioned specific implementation manner may be combined in any suitable manner under the circumstance that there is no contradiction. In order to avoid unnecessary repetition, the present invention will not describe various possible combinations.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (10)

1. A pavement misalignment repairing device, characterized in that it comprises a clamping assembly, an adjustment mechanism and a pressure balance mechanism, and the clamping assembly comprises a first clamping part and a second clamping part (7), the first clamping part and the second clamping part (7). A clamping member is connected to the adjusting mechanism capable of adjusting its position, the second clamping member (7) is installed at the lower end of the adjusting mechanism, the first clamping member and the second clamping member A clamping position for clamping the concrete slab is formed between (7), one end of the first clamping member is installed with the pressure balance mechanism, and the other end is the force end that can withstand the force exerted by the lifting mechanism (8). . 2 . The road surface misalignment repairing device according to claim 1 , characterized in that, a stress steel ( 9 ) is provided at the contact between the first clamping member and the lifting mechanism ( 8 ). 3 . 3. The road surface misplaced platform repairing device according to claim 1, characterized in that, the lifting mechanism (8) is a hydraulic jack. 4. The pavement misalignment repairing device according to claim 1, wherein the first clamping member comprises a first structural steel (1) and a second structural steel (2), and the first structural steel ( 1) Telescopic connection with the second structural steel (2), the first structural steel (1) is sleeved on the adjustment mechanism, and the second structural steel (2) is far away from the first structural steel ( One end of 1) is connected with the pressure balance mechanism. 5 . The road surface misalignment repairing device according to claim 4 , wherein the adjusting mechanism comprises an adjusting rod ( 6 ) and a limiting member ( 3 ), the limiting member ( 3 ) and the adjusting rod (6) cooperate to define the position of the first clamping member. 6. The pavement misalignment repairing device according to claim 5, characterized in that, the adjusting rod (6) is provided with a plurality of positioning holes (61) capable of cooperating with the limiting member (3), so The first structural steel (1) is provided with a first limiting hole (12), and the limiting member (3) can pass through the first limiting hole (12) and the corresponding positioning hole (61). ) to locate the height of the first structural steel (1). 7 . The pavement misalignment repairing device according to claim 6 , wherein the distance between the adjacent positioning holes ( 61 ) is 5-8 cm. 8 . 8. The pavement misalignment repairing device according to claim 5, characterized in that, the first structural steel (1) is sleeved on the adjusting rod (6), and the first structural steel (1) is provided with There is a second limiting hole for locating the position of the first structural steel (1) on the adjusting rod (6). 9 . The road surface dislocation repairing device according to claim 1 , wherein the pressure balance mechanism comprises a support rod ( 4 ) and a support seat ( 5 ) installed under the support rod ( 4 ). 10 . The first clamping part is threadedly connected with the support rod (4). 10. A pavement repairing method, characterized in that, using the pavement misplaced repairing device according to any one of claims 1 to 9, comprising the following steps: S1. Adjust the degree of opening and closing between the first clamping member and the second clamping member (7), clamp the concrete slab on the wrong platform, and adjust the pressure balance mechanism to make it match the the upper surface of the concrete slab abuts; S2. Use the lifting mechanism (8) to exert force on the clamping assembly to lift the staggered concrete slab and its upper surface is flush with the upper surface of the adjacent concrete slab; S3, using an electric drill tool to drill a plurality of repair holes (10) perpendicular to the surface above the concrete slab on the staggered platform; S4, injecting polyurethane foam material or quick-drying cement slurry into the repair hole (10) until the polyurethane foam material or fast-drying cement slurry overflows the repair hole (10); S5. After the polyurethane foam material or the quick-drying cement slurry is solidified, the road misalignment repairing device is removed, and the misalignment restoration is completed.

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