A bubble mixed lightweight soil roadbed structure for road-bridge connection section

Abstract

The present invention belongs to the field of civil engineering construction technology, and specifically relates to a road-bridge joint section bubble-mixed lightweight soil roadbed structure, including an anti-settling mechanism, the anti-settling mechanism including an upper baffle, a lower baffle, a spring and a slider group; the upper baffle is fixedly connected to the roadbed, the upper baffle is provided with a cavity, the cavity is provided with an opening, the lower baffle is fixedly connected to the bubble-mixed lightweight soil, the slider group matches the size of the opening, the slider group includes a fixed slider and a common slider, the fixed slider is fixedly connected to the lower baffle, and the fixed slider matches the common slider, the common slider is slidably connected to the cavity, a magnet is provided on the lower surface of the fixed slider, a permanent magnet is provided throughout the common slider, the upper surface of the permanent magnet is a positive pole, and the lower surface is a negative pole, the magnet matches the permanent magnet, one end of the spring is fixedly connected to the cavity, and the other end is fixedly connected to the common slider. In this way, it is possible to effectively prevent the problem of roadbed fracture caused by pressure generated when a car passes by due to a gap between the roadbed and the bubble-mixed lightweight soil.

Description

Technical Field

[0001] The invention belongs to the technical field of civil construction, and in particular relates to a bubble mixed lightweight soil roadbed structure for a road-bridge connection section. Background Art

[0002] The construction of the connection section between the lightweight soil roadbed and the bridge and culvert structure is a problem that many current engineering construction projects will encounter. After decades of continuous development, there are many methods for soft soil foundation treatment, and new methods, new materials, and new processes are constantly emerging. For a specific project, how to choose the appropriate foundation treatment method has become a problem of concern to everyone.

[0003] At present, the connection section structure and construction method of the highway soft soil roadbed and the bridge culvert structure with the patent number CN112458883B on the market include a bridgehead roadbed and a scaffolding arranged on the top thereof, and the characteristics are as follows: the bridgehead roadbed is composed of a roadbed main body, a transition roadbed and a bridge abutment arranged in sequence from back to front; the front end of the scaffolding is overlapped at a first trough arranged on the top of the bridge abutment, and the rear end of the scaffolding is overlapped at a second trough arranged on the top of the transition roadbed, and fixed supports supported at the edge of the scaffolding are fixed in the first trough and the second trough, and a central truncated cone in contact with the bottom surface of the scaffolding and a piezoelectric fixed sleeve arranged on the outer periphery of the central truncated cone are convexly provided on the top of the fixed support. The piezoelectric ring has a top surface lower than the top surface of the central cone and a gap with the bottom surface of the scaffolding. The piezoelectric ring is conductively connected to a heating tube embedded in a temporary sulfur mortar support through a lead wire. The temporary sulfur mortar support is located at the bottom of the third trough behind the scaffolding. The top of the temporary sulfur mortar support supports a settlement mark extending from the bridge head road surface. The outer sliding sleeve of the settlement mark has a positioning sleeve embedded and fixed in the bridge head roadbed. The lower end of the settlement mark is in the third trough and is connected to a spring for applying downward pressure to the settlement mark. A collapsible space is provided between the lower end surface of the settlement mark and the bottom surface of the third trough, which is located outside all temporary sulfur mortar supports. The contact transition surface between the abutment and the transition roadbed has a backward inclined section that gradually tilts backward from top to bottom and a forward inclined section that gradually tilts forward from top to bottom, and the forward inclined section and the backward inclined section are alternately distributed in the left and right directions.

[0004] The present invention relies on Huigang Avenue project, starts from the original foundation treatment, filling control of the bridge culvert and roadbed connection section, and proposes technical measures for settlement control of the bridge culvert and roadbed connection section.

[0005] However, there are some problems: 1. Water accumulation on the road and in the bubble-mixed lightweight soil foundation. 2. The temperature inside the bubble-mixed lightweight soil foundation is too low, which will cause cracks in the foundation. 3. Garbage will be generated in the drainage, which will clog the drainage pipe. 4. There is no buffering method for the settlement of bubble-mixed lightweight soil. Summary of the invention

[0006] This solution provides a bubble-mixed lightweight soil roadbed structure for a road-bridge junction section, which is used to solve the settlement problem of the roadbed and the bubble-mixed lightweight soil junction section.

[0007] To achieve the above objectives, the present invention provides a bubble-mixed lightweight soil roadbed structure at a road-bridge connection section, which also includes an anti-settling mechanism, the anti-settling mechanism including an upper baffle, a lower baffle, a spring and a slider group; the upper baffle is fixedly connected to the roadbed, the upper baffle is provided with a cavity, the cavity is provided with an opening, the lower baffle is fixedly connected to the bubble-mixed lightweight soil, the slider group is matched with the size of the opening, the slider group includes a fixed slider and an ordinary slider, the fixed slider is fixedly connected to the lower baffle, and the fixed slider is matched with the ordinary slider, the ordinary slider is slidably connected to the cavity, a magnet is provided on the lower surface of the fixed slider, a permanent magnet is penetrated by the ordinary slider, the upper surface of the permanent magnet is a positive pole, and the lower surface is a negative pole, the magnet is matched with the permanent magnet, one end of the spring is fixedly connected to the cavity, and the other end is fixedly connected to the ordinary slider.

[0008] The principle of this scheme is that in the initial state, the bubble-mixed lightweight soil does not settle, the anti-settling mechanism is in a compressed state in the middle, the slider groups are all located inside the cavity, the lower baffle is also in contact with the upper baffle, and the spring is also in a compressed state.

[0009] When the bubble-mixed lightweight soil settles, the lower baffle moves downward along with the bubble-mixed lightweight soil. Since the fixed slider is fixedly connected to the lower baffle, it also moves downward. The fixed slider is pulled out from the opening inside the cavity. Due to the withdrawal of the fixed slider, the compression spring is pressed forward, causing the ordinary slider to slide to the position before the fixed slider. At the same time, the permanent magnets of the two are in contact to generate magnetic force. The fixed slider forms a fixed connection with the first ordinary slider that slides over, filling the part of the bubble-mixed lightweight soil that has settled, forming a supporting force. When a car passes by, the pressure from the roadbed is supported by the anti-settlement mechanism.

[0010] If the bubble-mixed lightweight soil continues to settle, the fixed slider will repeat the above operation and continue to pull out the ordinary slider from the cavity to form a supporting force.

[0011] The beneficial effect of this solution is that when a car passes by, the pressure from the roadbed is supported by the anti-settling mechanism. This can effectively prevent the problem of the roadbed breaking due to the gap between the roadbed and the air bubble mixed lightweight soil due to the pressure generated when the car passes by.

[0012] Furthermore, it also includes a settlement warning mechanism, which includes a coil, a power supply and a voltage difference analyzer. The coil is wound on the upper baffle, and the coil cooperates with the ordinary slider; the power supply is electrically connected to the voltage difference analyzer, and the voltage difference analyzer is electrically connected to the coil, and the voltage difference analyzer is located above the roadbed. At the same time, the upper baffle is also wound around the coil. When the slider moves forward, it drives the permanent magnet to move, which will cause the permanent magnet to cut the magnetic flux lines of the coil, generating a voltage change, and the coil is electrically connected to the voltage difference analyzer. The voltage difference analyzer will have a voltage change, and an alarm will be issued to inform the staff that the bubble-mixed lightweight soil in the connection section has settled, so that the staff can deal with it as soon as possible.

[0013] Furthermore, it also includes a treatment box, a drainage channel and stairs. The drainage channel is connected to the roadbed, and the drainage channel is connected to the treatment box. The stairs are fixedly connected to the treatment box. The drainage channel can drain the accumulated water on the road surface, and then all of it enters the treatment box. The treatment box filters out garbage and treats wastewater, and then discharges it into the river. This achieves the effect of preventing the drainage pipe from being blocked and draining accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural cross-section diagram of the initial state 1 of a bubble-mixed lightweight soil roadbed structure at a road-bridge junction.

[0015] Figure 2 This is a structural cross-section diagram of a road-bridge junction section with a bubble-mixed lightweight soil roadbed structure in support state 2.

[0016] Figure 3 This is a cross-sectional view of the initial state 1 of an anti-settling mechanism of a bubble-mixed lightweight soil roadbed structure at a road-bridge junction.

[0017] Figure 4 It is a cross-sectional view of the support state 2 of the anti-settlement mechanism of a bubble mixed lightweight soil roadbed structure at the road-bridge connection section.

[0018] Figure 5 This is a structural diagram of the initial state 1 of an anti-settlement mechanism of a bubble-mixed lightweight soil roadbed structure at a road-bridge junction.

[0019] Figure 6 It is a structural diagram of the support state 2 of the anti-settlement mechanism of a bubble mixed lightweight soil roadbed structure in a road-bridge connection section. DETAILED DESCRIPTION

[0020] The marks in the drawings of the specification include: 1. roadbed; 2. anti-settling mechanism; 3. steps; 4. stairs; 5. drainage channel; 6. drainage pipe; 7. treatment box; 8. bubble mixed lightweight soil; 2-1. upper baffle; 2-2. spring; 2-3. slider group; 2-4. permanent magnet; 2-5. lower baffle.

[0021] The embodiment is basically as shown in the attached Figure 1 As shown:

[0022] The present invention provides a roadbed 1 structure of bubble-mixed lightweight soil 8 at the road-bridge connection section, comprising a roadbed 1; an anti-settling mechanism 2; a step 3; a stair 4; a drain 5; a drain pipe 6; a treatment box 7; and bubble-mixed lightweight soil 8; the anti-settling mechanism 2 is located between the roadbed 1 and the bubble-mixed lightweight soil 8, the step 3 is located on both sides of the roadbed 1 for pedestrian passage, one end of the stair 4 is connected to the top of the step 3, and the other end is connected to the treatment box 7, the treatment box 7 is located inside the step 3 for treating wastewater and filtering garbage, the drain 5 is connected to the roadbed 1 for discharging accumulated water above the roadbed 1, and the drain 5 is connected to the treatment box 7 through the drain pipe 6.

[0023] As attached Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown:

[0024] The anti-settling mechanism 2 includes an upper baffle 2-1; a spring 2-2; a slider group 2-3; a permanent magnet 2-4; and a lower baffle 2-5; the upper surface of the upper baffle 2-1 is fixedly connected to the roadbed 1, and two left and right cavities are provided below the upper baffle 2-1, each cavity has an opening for the slider to go out, and the size of the opening matches the slider. Seven ordinary sliders and one fixed slider are arranged in the cavity, and the ordinary slider and the fixed slider have the same shape, except that the fixed slider is fixedly connected to the lower baffle 2-5, and permanent magnets 2-4 are provided in the middle of the upper and lower surfaces of all the sliders, and the permanent magnets 2-4 will attract each other.

[0025] The shape of the slider is a slide groove on the front side and a slide rail on the back side. The sliders are connected to each other through the slide groove and the slide rail to form a row, so that each slider has only an upward and downward sliding displacement without restriction.

[0026] As attached Figure 1 , Figure 2 As shown:

[0027] In the initial state, the bubble-mixed lightweight soil 8 does not settle, the anti-settling mechanism 2 is in a compressed state in the middle, the slider group 2-3 is located inside the cavity, the lower baffle 2-5 is also in contact and connected with the upper baffle 2-1, and the spring 2-2 is also in a compressed state.

[0028] When the bubble-mixed lightweight soil 8 settles, the lower baffle 2-5 moves down together with the bubble-mixed lightweight soil 8. Since the fixed slider is fixedly connected to the lower baffle 2-5, it also moves down with it. The fixed slider is pulled out from the opening inside the cavity. Due to the withdrawal of the fixed slider, the compression spring 2-2 is pressed forward, so that the ordinary slider slides to the position before the fixed slider. At the same time, the permanent magnets of the two contact to generate magnetic force. The fixed slider forms a fixed connection with the first ordinary slider that slides over, filling the part of the bubble-mixed lightweight soil 8 that settles, forming a supporting force. When the car passes by, the pressure from the roadbed 1 is supported by the anti-settling mechanism 2. In this way, it can effectively prevent the problem of the roadbed 1 breaking due to the gap between the roadbed 1 and the bubble-mixed lightweight soil 8 when the car passes by.

[0029] If the bubble-mixed lightweight soil 8 continues to settle, the fixed slider will repeat the above operation and continue to pull out the ordinary slider from the cavity to form a supporting force.

[0030] At the same time, the upper baffle 2-1 is also wrapped around the coil. When the slider moves forward, it drives the permanent magnet 2-4 to move, which will cause the permanent magnet 2-4 to cut the magnetic flux lines of the coil, generating a voltage change. The coil is electrically connected to the voltage difference analyzer, and the voltage difference analyzer will have a voltage change, sounding an alarm to inform the staff that the bubble-mixed lightweight soil 8 in the connecting section has settled, so that the staff can deal with it as soon as possible.

[0031] When water accumulates on the road surface, it can also enter the road treatment box 7 through the drainage channel 5. The treatment box 7 is provided with a large filter screen for filtering garbage and treating wastewater. The wastewater is discharged into the river only after being treated.

[0032] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A road-bridge junction section bubble mixed lightweight soil roadbed structure, comprising a roadbed and bubble mixed lightweight soil; characterized in that: It also includes an anti-settling mechanism, which includes an upper baffle, a lower baffle, a spring and a slider group; The upper baffle is fixedly connected to the roadbed, the upper baffle is provided with a cavity, the cavity is provided with an opening, the lower baffle is fixedly connected to the bubble-mixed lightweight soil, the slider group is matched with the size of the opening, the slider group includes a fixed slider and an ordinary slider, the fixed slider is fixedly connected to the lower baffle, and the fixed slider is matched with the ordinary slider, the ordinary slider is slidably connected to the cavity, a magnet is provided on the lower surface of the fixed slider, a permanent magnet is penetrated by the ordinary slider, the upper surface of the permanent magnet is a positive pole, and the lower surface is a negative pole, the magnet is matched with the permanent magnet, one end of the spring is fixedly connected to the cavity, and the other end is fixedly connected to the ordinary slider.

2. The bubble mixed lightweight soil roadbed structure of the road-bridge connection section according to claim 1 is characterized in that: It also includes a settlement warning mechanism, which includes a coil, a power supply and a voltage difference analyzer. The coil is wound on the upper baffle plate and cooperates with a common slider. The power supply is electrically connected to the voltage difference analyzer, and the voltage difference analyzer is electrically connected to the coil, and the voltage difference analyzer is located above the roadbed.

3. The bubble mixed lightweight soil roadbed structure of the road-bridge connection section according to claim 1 is characterized in that: It also includes a treatment box, a drainage channel and stairs. The drainage channel is connected to the roadbed, and the drainage channel is connected to the treatment box. The stairs are fixedly connected to the treatment box.

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