CN112796344A - Inspection well supporting system - Google Patents
Inspection well supporting system Download PDFInfo
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- CN112796344A CN112796344A CN202011640843.XA CN202011640843A CN112796344A CN 112796344 A CN112796344 A CN 112796344A CN 202011640843 A CN202011640843 A CN 202011640843A CN 112796344 A CN112796344 A CN 112796344A
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- inspection well
- spring damping
- sleeve
- jacks
- support system
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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Abstract
The invention is suitable for the technical field of inspection well supporting systems, and provides an inspection well supporting system which comprises an inspection well cover, a gasket, a spring damping mechanism and a jack. According to the inspection well supporting system, the spring damping mechanism and the jack which are equivalent to the modulus of elasticity of the roadbed are arranged to support the gasket and the inspection well cover, so that impact of vehicles on the inspection well when passing through the inspection well is reduced, convenience is brought to leveling of the inspection well cover in the later period, and influence on traffic is reduced.
Description
Technical Field
The invention belongs to the technical field of inspection well construction, and particularly relates to an inspection well supporting system.
Background
Municipal works are rapidly developed, and the requirement on road construction is higher and higher. When the road is initially built, the road surface is consistent with the height of the inspection well and is smooth, and vehicles run on the road surface smoothly. Because the rigidity of the well wall supported by the inspection well is higher than that of the surrounding road surface, a vehicle has certain vibration feeling when passing through the inspection well, but the inspection well does not have too large bumping feeling. However, the time for the vehicle to go on is long, and because the elastic modulus of the inspection well position is different from that of the surrounding road surface, the impact of the vehicle on the inspection well position is larger than that of the surrounding road surface, so that the well wall supported by the inspection well is damaged, and the surface layer of the inspection well is settled. When the vehicle rolls the sunken inspection well, the inspection well is impacted more greatly, and then the surrounding road surface is damaged. Not only causing the jolt of the travelling crane, but also causing great damage to the road surface. The road maintenance wastes time, labor and money, and brings great inconvenience to road traffic. The small inspection well seems to be unobtrusive, but the difficulty caused by the inspection well is large, which brings discomfort during the driving of the vehicle and more importantly great damage to the surrounding road surface. Because the vehicle is different to the impact force degree of the stress surface of different rigidity, if the inspection shaft receives destruction, can cause the road surface to receive very big impact, and then whole road surface all can receive the impact of very big power, very fast, the road surface can damage. In urban roads, the maintenance of the driving road surface of a motor vehicle is very difficult, and needs to be surrounded, thus causing traffic inconvenience. And because of the damage that this kind of reason caused, road surface maintenance is very troublesome, and is equivalent to repairment road, and the time also can be very long, and direct economic loss can be very big. The maintenance time is long, the enclosure time is long, indirect economic loss caused by the maintenance time is larger, adverse effects are caused to the development and construction of a city, and the city construction loss is larger. The research on inspection wells by the relevant professionals continues.
Disclosure of Invention
The invention aims to provide an inspection well supporting system, and aims to solve or at least improve the technical problem that the existing inspection well is easy to be uneven with a road surface after being used for a long time to a certain extent.
In order to achieve the above object, the present invention adopts a technical solution that provides an inspection well support system, including:
the top of the inspection well cover is flush with the top of the roadbed;
the gasket is provided with an arc-shaped mounting groove for placing the inspection well cover;
the spring damping mechanisms are annularly distributed at equal intervals on the lower parts of the gaskets and are abutted or connected with the gaskets, and the ratio of the elastic modulus of the spring damping mechanisms to the elastic modulus of the roadbed is in a range of 0.9-1;
the jacks are annularly distributed on the upper part of the inspection well wall at equal intervals and are positioned on the lower parts of the spring damping mechanisms, the jacks are respectively in one-to-one correspondence with the spring damping mechanisms, the bases of the jacks are fixed on the upper part of the inspection well wall, and the tops of the jacks are abutted against or connected with the corresponding spring damping mechanisms.
Furthermore, the inspection well supporting system further comprises a controller, the jacks are electrically controlled jacks, and each electrically controlled jack is electrically connected with the controller respectively.
Furthermore, the inspection well supporting system further comprises a plurality of electronic horizontal inclinometers electrically connected with the controller, each electronic horizontal inclinometer is in one-to-one correspondence with each spring damping mechanism, each electronic horizontal inclinometer is close to the corresponding spring damping mechanism, each electronic horizontal inclinometer is horizontally arranged in the soil foundation, and each electronic horizontal inclinometer is attached to the lower part of the gasket.
Further, inspection shaft braced system still include with controller electric connection's display screen, the display screen is fixed in on the lamppost.
Further, inspection shaft braced system includes first sleeve, first sleeve cover is located spring damping mechanism with the periphery of jack.
Further, inspection shaft braced system includes the second sleeve, the second sleeve cover is located first telescopic periphery, the second sleeve with it has the soft rubber of shock attenuation to bond between the first sleeve.
Further, the spring damping mechanism has six, and the jack has six correspondingly.
Compared with the prior art, the inspection well supporting system provided by the invention has the advantages that the spring damping mechanism and the jack which are equivalent to the modulus of elasticity of the roadbed are arranged to support the gasket and the inspection well cover, so that the impact of a vehicle on the inspection well when passing through the inspection well is reduced, convenience is provided for leveling the inspection well cover in the later period, and the influence on traffic is reduced.
Drawings
Fig. 1 is a schematic view of an inspection well support system according to an embodiment of the present invention.
In the figure: 100. a manhole cover; 200. a gasket; 300. a spring damping mechanism; 400. a jack; 500. A first sleeve; 600. a second sleeve; 700. damping soft rubber; 800. an electronic horizontal inclinometer; 900. Scenting the well wall; 1000. soil foundation; 1100. and (7) roadbed.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "lighting", "backlighting" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "illuminating" or "backlight" may explicitly or implicitly include one or more of that feature. Further, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, an embodiment of the inspection well support system provided by the present invention will now be described. The inspection well supporting system comprises an inspection well cover 100, a gasket 200, a spring damping mechanism 300 and a jack 400. The top of the inspection well cover 100 is flush with the top of the roadbed 1100. Inspection well lid 100 is generally circular well lid, and packing ring 200 is equipped with the annular mounting groove that is used for placing inspection well lid 100, and annular mounting groove must be with inspection well lid 100 adaptation. If the gasket 200 has a protruding portion protruding from the ring-shaped installation groove, the protruding portion should be also disposed flush with the top of the roadbed 1100.
The plurality of spring damper mechanisms 300 are arranged, and the spring damper mechanisms 300 are arranged around the lower portion of the gasket at equal intervals, and it is needless to say that the center of the arrangement of the spring damper mechanisms 300 is the center of the manhole cover 100. Each spring damping mechanism 300 abuts or is connected to the washer 200, and the ratio of the elastic modulus of the spring damping mechanism 300 to the elastic modulus of the roadbed 1100 is in the range of 0.9-1, that is, the elastic modulus of the spring damping mechanism 300 is close to the elastic modulus of the roadbed 1100. The spring damping mechanism 300 is not limited in structure and material, and may be a mechanical mechanism or a building structure, etc.
The plurality of jacks 400 are annularly distributed on the upper part of the inspection well wall 900 at equal intervals and are positioned at the lower part of the spring damping mechanism 300, and the surrounding center of each jack 400 is certainly the center of the inspection well cover 100. Each jack 400 is respectively corresponding to each spring damping mechanism 300, the base of each jack 400 is fixed on the upper part of the inspection well wall 900, and the top of each jack 400 is abutted against or connected with the corresponding spring damping mechanism 300.
In the construction or manufacturing of the inspection well supporting system provided by the embodiment of the invention, a well needs to be excavated on the roadbed 1100 and the soil foundation 1000, and then the inspection well wall 900 is constructed on the inner side of the well, of course, the upper part of the inspection well wall 900 cannot exceed the top of the roadbed 1100, so as to leave a space for installing the spring damping mechanism 300, the jack 400, the gasket 200 and the inspection well cover 100. And then sequentially installing the jack 400, the spring damping mechanism 300, the gasket 200 and the inspection well cover 100, and leveling the inspection well cover 100 and the roadbed 1100. The structures and connection relations of the inspection well cover 100, the gasket 200, the soil foundation 1000, the roadbed 1100 and the well are the same as those of the prior art, and are not described in detail herein.
After the final construction is completed, it is necessary to ensure that the washer 200 is not supported by the roadbed 1100, and the washer 200 is mainly supported by the spring damping mechanism 300. On one hand, the inspection well wall 900 is usually made of concrete, the rigidity is extremely high, the number of the jacks 400 is multiple, the rigidity of the adjusting mechanism formed by the jacks 400 is also extremely high, and in addition, the spring damping mechanism 300 is set to have almost the same elastic modulus as that of the roadbed 1100, so that when a vehicle passes through the inspection well cover 100, jolts caused by different elastic moduli due to the existence of the inspection well cannot be felt, and impact which is much larger than that of the road surface cannot be generated on the inspection well supporting system provided by the embodiment of the invention, and the height difference between the inspection well area and the roadbed 1100 is difficult to generate after the inspection well area is used for a long time, so that the driving comfort of the vehicle is improved; on the other hand, the structure can also ensure the height adjustment of the inspection well cover 100, if the height difference between the inspection well cover 100 and the roadbed 1100 is generated after a period of time, constructors or maintenance personnel can adjust the height of the inspection well cover 100 again through the jack 400, so that the inspection well cover 100 is level with the roadbed 1100 again, the leveling process is simple and easy to realize, the time consumption in the leveling operation process is less, and the influence on traffic is reduced.
It should be further understood that the inspection well support system provided by the embodiment of the present invention is not only applicable to the flat roadbed 1100, but also applicable to the slope roadbed 1100.
Compared with the prior art, the inspection well supporting system provided by the embodiment of the invention has the advantages that the spring damping mechanism and the jack which are equivalent to the modulus of elasticity of the roadbed are arranged to support the gasket and the inspection well cover, so that the impact of vehicles on the inspection well when passing through the inspection well is reduced, convenience is provided for leveling the inspection well cover in the later period, and the influence on traffic is reduced.
As a specific implementation manner of the inspection well supporting system provided by the present invention, the inspection well supporting system provided by the embodiment of the present invention further includes a controller, the jacks 400 are electrically controlled jacks, and each electrically controlled jack 400 is electrically connected to the controller. Constructors or maintenance personnel can control the action of a certain jack 400 through a controller, so that the leveling of the inspection well lid 100 is realized more conveniently. The controller is not limited to be placed in the inspection well, and can be placed in an external control room or a machine room.
Referring to fig. 1, as a specific embodiment of the inspection well supporting system provided by the present invention, the inspection well supporting system provided by the embodiment of the present invention further includes a plurality of electronic horizontal inclinometers 800 electrically connected to the controller, respectively, and each of the electronic horizontal inclinometers 800 corresponds to each of the spring damping mechanisms 300 one by one. The electronic horizontal inclinometers 800 are also distributed around the manhole cover 100 at equal intervals, and the surrounding center of each electronic horizontal inclinometer 800 is the center of the manhole cover 100. The electronic level inclinometer 800 is close to the corresponding spring damping mechanism 300, most of the electronic level inclinometer 800 is horizontally arranged in the soil foundation 1000, and one end of the electronic level inclinometer 800 is attached to the lower part of the gasket 200.
In actual use, the uneven stress on the surface of the inspection well caused by the fact that a vehicle rolls one side of the surface of the inspection well causes uneven deformation of the inspection well supporting system provided by the invention, one side of the inspection well can be greatly settled, the surface of the inspection well is inclined, and one side of the inspection well is lower than the height of a nearby road surface. The electronic level inclinometer 800 is used for detecting whether a height difference between a part (one side) of the corresponding spring damping mechanism 300 adjacent to the gasket 200 and the surrounding roadbed 1100 occurs. If a height difference occurs, the electronic inclinometer 800 is higher or lower at one end of the lower part of the gasket 200 than at the other end, and the electronic inclinometer 800 generates a corresponding type report to the controller. The controller can alarm to remind constructors or maintenance personnel, or the controller can control the related electric control type jack 400 to carry out lifting adjustment so as to level the inspection well lid 100 according to feedback signals of the electronic type horizontal inclinometer 800.
As a specific implementation manner of the inspection well support system provided by the present invention, the inspection well support system provided by the embodiment of the present invention further includes a display screen electrically connected to the controller, the display screen is fixed on the lamppost, and the display screen can be used for displaying signal information corresponding to the electronic horizontal inclinometer 800, so that a constructor or a maintenance worker can quickly know which side of the inspection well lid 100 is inclined.
As a specific embodiment of the inspection well support system provided by the present invention, the display screen, the electronic horizontal inclinometer 800 and the electrically controlled jack 400 can all use the power of the street lamp system.
Referring to fig. 1, as a specific embodiment of the inspection well supporting system provided by the present invention, the inspection well supporting system provided by the embodiment of the present invention includes a first sleeve 500, and the first sleeve 500 is sleeved on the outer peripheries of the spring damping mechanism 300 and the jack 400. The first sleeve 500 may be configured to be secured to the manhole wall 900, and the first sleeve 500 may be configured to protect the spring damping mechanism 300 and the jack 400 from moisture and dirt.
Referring to fig. 1, as a specific embodiment of the inspection well supporting system provided by the present invention, the inspection well supporting system provided by the embodiment of the present invention includes a second sleeve 600, and the second sleeve 600 is sleeved on the outer circumference of the first sleeve 500. A shock-absorbing soft rubber 700 is bonded between the second sleeve 600 and the first sleeve 500. Shock attenuation soft rubber 700 sets up for the annular, bonds between second sleeve 600 and first sleeve 500, and shock attenuation soft rubber 700 has certain cushioning effect on the one hand, can cushion external disturbance, and on the other hand shock attenuation soft rubber 700 has also strengthened second sleeve 600 and first sleeve 500's leakproofness to prevent the erosion that spring damping mechanism 300 and jack 400 received moisture and earth better.
As a specific embodiment of the inspection well support system provided by the present invention, there are six spring damping mechanisms 300 and six jacks 400. The angle between adjacent spring damping mechanisms 300 is 60.
As a specific embodiment of the inspection well support system provided by the present invention, any spring damping type structure (structure having an elastic modulus) can be equivalent to a spring and a damper arranged in parallel. The spring damping mechanism 300 may also be equivalent to a spring and a damper arranged in parallel, and a plurality of spring damping mechanisms 300 arranged in parallel may be equivalent to one total spring and one total damper arranged in parallel.
Alternatively, the modulus of elasticity of the roadbed 1100 can be measured by sampling and can be estimated according to the material, so as to derive the stiffness coefficient of the total spring and the damping coefficient of the total damper, and then the designer can design the structure and the characteristics of each spring damping mechanism 300 according to the stiffness coefficient of the total spring and the damping coefficient of the total damper.
Alternatively, the stiffness coefficient of the total spring and the damping coefficient of the total damper may also be obtained by the finite element method.
A vehicle-roadbed dynamic model is constructed based on a (driving) vehicle-roadbed (vehicle-road) contact relation, and the dynamic equation is as follows:
in the formula, mr-the quality matrix of the subgrade (which can be calculated from the design parameters); c. Cr-damping matrix of the subgrade (which can be calculated from design parameters); k is a radical ofr-the stiffness matrix of the subgrade (which can be calculated from the design parameters); x is the node displacement vector of the roadbed,
-a node velocity vector of the subgrade,
-nodal acceleration vectors of the subgrade; fvr-the vehicle couples dynamic forces to the contact area of the subgrade.
mv-mass matrix of vehicles (where vehicles may be selected for use)The most common vehicle or equivalent of multiple vehicles on the road base 1100); c. Cv-a vehicle damping matrix; k is a radical ofv-a vehicle stiffness matrix; z-vehicle node displacement vector,
-a vehicle node velocity vector of a vehicle node,
-vehicle node acceleration vectors; frv-the roadbed couples dynamic forces to the vehicle contact area; fvg-vehicle weight.
A dynamic model of the vehicle-inspection well (v-i) is constructed based on a vehicle-inspection well (driving) contact relation, and the dynamic equation is as follows:
in the formula, miA quality matrix of the inspection well (the inspection well herein includes the inspection well lid 100, the washer 200, the spring damping mechanism 300, the jack 400, and the inspection well wall 900, the same applies below); c. Ci-a damping matrix of the inspection well; k is a radical ofi-a stiffness matrix of the inspection well; y is the node displacement vector of the inspection well,
-a node velocity vector of the inspection well,
-a node acceleration vector of the inspection well; fvi-the vehicle couples forces to the contact area of the inspection well.
FivThe inspection well couples acting force to the vehicle volume contact area.
According to the Standard on road engineering (JTG B01-2003), a standard vehicle load BZZ-100 is specified. The following description will take the standard vehicle as an example of an equivalent vehicle running on the inspection well support system provided by the embodiment of the invention. This is achieved byThe rear axle load of the standard vehicle is 100KN, and the load of one side tire is 50 KN. The rigidity coefficient of the vehicle suspension is 1 multiplied by 106(N·m-1) Damping parameter of vehicle is 1.5X 104(N·S·m-1) The coefficient of stiffness of the tire is 1.75 multiplied by 106(N·m-1) Damping parameter of tyre is 2 x 103(N·S·m-1). According to various parameters of the standard vehicle, the rigidity coefficient of the spring in the inspection well is 5 multiplied by 10 and can be obtained by calculation of a formula (1)5(N·m-1) Damping coefficient 1X 104(N·S·m-1). According to the data obtained by calculation, a vehicle-inspection well finite element model can be constructed, so that the vertical displacement of the inspection well cover 100 under the action of the vehicle load is solved.
And (3) properly adjusting the rigidity value k of the spring (the rigidity matrix of the inspection well) and the damping value c of the damper (the damping matrix of the inspection well) in the formula (2) to enable the displacement values of the inspection well and the surrounding road surface to be the same or similar, so that the consistency of the elastic modulus of the inspection well and the road surface is achieved, the driving comfort of the vehicle is enhanced, and the impact force of the vehicle on the inspection well is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Inspection shaft braced system, its characterized in that includes:
the top of the inspection well cover is flush with the top of the roadbed;
the gasket is provided with an arc-shaped mounting groove for placing the inspection well cover;
the spring damping mechanisms are annularly distributed at equal intervals on the lower parts of the gaskets and are abutted or connected with the gaskets, and the ratio of the elastic modulus of the spring damping mechanisms to the elastic modulus of the roadbed is in a range of 0.9-1;
the jacks are annularly distributed on the upper part of the inspection well wall at equal intervals and are positioned on the lower parts of the spring damping mechanisms, the jacks are respectively in one-to-one correspondence with the spring damping mechanisms, the bases of the jacks are fixed on the upper part of the inspection well wall, and the tops of the jacks are abutted against or connected with the corresponding spring damping mechanisms.
2. The inspection well support system of claim 1, further comprising a controller, wherein the jacks are electrically controlled jacks, and each electrically controlled jack is electrically connected to the controller.
3. The inspection well support system of claim 2, further comprising a plurality of electronic horizontal inclinometers electrically connected to the controller, each electronic horizontal inclinometer corresponding to each spring damping mechanism, each electronic horizontal inclinometer being adjacent to the corresponding spring damping mechanism, each electronic horizontal inclinometer being horizontally disposed in the soil foundation and attached to the lower portion of the gasket.
4. The inspection well support system of claim 3, further comprising a display screen electrically connected to the controller, the display screen being affixed to a lamppost.
5. The inspection well support system of claim 1, comprising a first sleeve sleeved around the spring damping mechanism and the jack.
6. The inspection well support system of claim 5, wherein the inspection well support system comprises a second sleeve, the second sleeve is sleeved on the periphery of the first sleeve, and a damping soft rubber is bonded between the second sleeve and the first sleeve.
7. The inspection well support system of any one of claims 1 to 6, wherein the spring damping mechanism has six and the jack has six, respectively.
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| CN202011640843.XA CN112796344B (en) | 2020-12-31 | 2020-12-31 | Inspection well supporting system |
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