Road signal hand hole well

Abstract

The utility model provides a road signal hand hole well. The road signal hand hole well comprises a well base, a well chamber and a well ring which are sequentially arranged from bottom to top. The well chamber is of a hollow structure; a cable pipe is embedded in the inner wall of the well chamber in the radial direction of the well chamber. A cable penetrates through the cable tube, is led into the well chamber and is connected with a signal lamp lead in the well chamber; a hole site is arranged in the well ring and comprises an upper section and a lower section, the lower section is a through hole, and the upper section is a counter bore; a well lid plate capable of being opened and closed is connected into the counter bore. The outer ring at the counter bore forms an annular structure; and the well foundation is paved by adopting C15 concrete and / or an original pavement milling material. The utility model has the advantages of simple and reasonable structure and strong integrity, improves the structural strength and stability, is simple and easy to construct, uses the original pavement milling material for well foundation construction, and reduces the emission of construction wastes and pollution; the well body structure is prevented from being flooded due to the fact that rainwater is poured into the well body structure, damage is reduced, the process is simplified, cost is reduced, and maintainability of the hand hole well structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building or municipal engineering construction, in particular to a road signal hand hole well. Background Art

[0002] A manhole well is a well structure built in construction or municipal engineering to facilitate the laying of lines. It is a well structure that people cannot enter and only hands can be reached in to facilitate the threading of wires. The manhole well is for the laying of outdoor pipelines such as water, electricity, heating and ventilation, and the installation and use of equipment such as valves and switches. It provides a convenient working pit and is generally made of cement bricks.

[0003] The upper part of the manhole is equipped with an openable cover. The manhole is usually small, with a structural size of generally less than 40x70x70cm, and a person can enter to pull wires, connect or operate. The types are usually square, round, or built into other forms according to needs.

[0004] Road signal manholes are an important part of signal light pipeline projects. Setting up manholes in road lighting projects can make the laying of lighting cables convenient and quick. During cable flaw detection, maintenance personnel can easily lift the manhole cover, and most cable fault points will be clearly visible, making it easier to detect and replace cables.

[0005] However, with the increase in the completion time of the manhole well project, the manhole well is subject to external pressure and other effects during its later use, which can easily cause the well structure to sink, and rainwater to flow into the well body and cause damage. In addition, some mud and sand will inevitably accumulate in the manhole well. As the amount of mud and sand accumulates more and more, the joints between the main cable and the lamp down lead in the manhole well will be buried by mud and sand, and the waterproof tape and insulating tape will also be corroded and aged by the mud and sand. When encountering rainy and snowy weather, it is very easy for the cable to short-circuit and burn, causing potential safety accidents. Utility Model Content

[0006] In view of this, the purpose of the utility model is to design a road signal handhole well, improve the stability of the structure, reduce the occurrence of damage, simplify the process, use the original road surface milling material for the well bottom structure construction, reduce the emission of construction waste, reduce costs, and improve the maintainability of the handhole well structure.

[0007] The utility model provides a road signal hand hole well, comprising:

[0008] The well base, well chamber and well ring are arranged in sequence from bottom to top; the well chamber is an internal hollow structure; wherein a cable tube is embedded in the inner wall of the well chamber along the radial direction of the well chamber; a cable is passed through the cable tube, the cable is introduced into the well chamber and connected to the signal light lead in the well chamber;

[0009] Preferably, the cable pipe is a PE pipe.

[0010] PE (polyethylene) pipe has the following characteristics:

[0011] Good hygienic performance: No heavy metal salt stabilizer is added during the processing of PE pipes. The material is non-toxic, has no scaling layer, and does not breed bacteria, which effectively solves the secondary pollution of urban drinking water.

[0012] Excellent corrosion resistance: except for a few strong oxidants, it can resist corrosion from a variety of chemical media; no electrochemical corrosion;

[0013] Long service life: Under rated temperature and pressure conditions, PE pipes can be safely used for more than 50 years;

[0014] Good impact resistance: PE pipe has good toughness and high impact resistance. Heavy objects can directly press over the pipe without causing it to break.

[0015] Reliable connection performance: The strength of the hot-melt or electric-melt joint of PE pipe is higher than that of the pipe body, and the joint will not be disconnected due to soil movement or live load;

[0016] Good construction performance: the pipeline is light, the welding process is simple, the construction is convenient, and the overall project cost is low.

[0017] The well ring is provided with a hole inside, and the hole includes an upper section and a lower section, wherein the lower section is a through hole and the upper section is a countersunk hole; a well cover plate that can be opened and closed is connected inside the countersunk hole; the outer ring at the countersunk hole forms an annular structure, which improves the rigidity of the well ring;

[0018] The well foundation is paved with C15 concrete and / or original road surface milling material to support the well chamber.

[0019] The original road milling material includes: asphalt gravel mixture scraped off the original damaged asphalt sand road surface with a milling machine; the original road milling material is used as the original road surface material backfill for cushion foundation, which reduces the emission of construction waste, saves costs, reduces pollution and protects the environment.

[0020] Furthermore, the well chamber adopts MU10 standard bricks and M10 cement mortar to build the walls, and the inner side of the wall is plastered with 1:2 cement mortar.

[0021] The strength grade of bricks is usually determined by its compressive strength as the main standard, and it should also meet certain flexural strength in each grade. Common grades include standard clay (fly ash) bricks MU7.5, MU10, MU15, MU20; load-bearing porous bricks can reach MU25, MU30; in terms of appearance, it is generally required to have accurate dimensions, neat edges and corners, and no serious phenomena such as corner loss, missing rolls, cracks and warping.

[0022] The role of mortar in masonry is mainly to fill the gaps between bricks and bond them into a whole so that the load of the upper bricks can be evenly transmitted to the lower layer.

[0023] Mortar can be divided into cement mortar, lime mortar, mixed mortar and other mortars with various admixtures. Their strength grades include M15, M10, M7.5, M5, M2.5, M1, and M0.4.

[0024] The type and grade of cement used in mortar should meet the design requirements; medium sand should generally be used and should be sieved without containing any foreign matter. The mud content should generally not exceed 5%. For mixed mortar with a grade less than M5, the sand content should not exceed 10%; when quicklime is matured into lime paste, it should be filtered through a net and the maturation time should not be less than 7 days. It should also be prevented from drying, freezing and contamination. Dehydrated and hardened lime paste shall not be used.

[0025] Mortar should be mixed with a mortar mixer for no less than 1.5 minutes and used immediately after mixing; cement mortar should be used up within 3 hours after mixing. Mixed mortar should be used up within 4 hours. If the temperature exceeds 30℃, it should be used up within 2 hours and 3 hours respectively.

[0026] Freshly mixed mortar usually has good workability, which facilitates construction, makes it easy to ensure quality, and improves masonry strength and labor productivity.

[0027] The inner wall of the well chamber should have a smooth surface, the masonry mortar should be full, and the joints should be smooth.

[0028] Furthermore, a well bottom structure is laid on the inner side of the well foundation, at the bottom of the well chamber, and the well bottom structure is paved with a single layer of bricks to reinforce the well body structure.

[0029] Furthermore, a mortar seat structure is used between the well ring and the well chamber, and the outer edge of the mortar seat structure is plastered with 1:2 waterproof cement mortar and triangular plaster.

[0030] Furthermore, the manhole ring is made of C30 concrete, and the manhole cover is made of composite material.

[0031] Furthermore, the top surface elevation of the well ring is higher than the ground elevation of the earth shoulder.

[0032] Furthermore, the elevation of the top surface of the well ring is the same as the elevation of the road surface, and the edge of the well ring is in line with the road surface.

[0033] Furthermore, the connection between the inner wall of the well chamber and the cable pipe is paved with C20 fine stone concrete, and the paving thickness is ≥ the outer diameter of the cable pipe.

[0034] Furthermore, the distance between the bottom side of the cable pipe and the well bottom structure is 230-250 mm.

[0035] Furthermore, the thickness of the well foundation is ≥60 mm.

[0036] Compared with the prior art, the road signal hand hole well of the utility model has the following beneficial effects:

[0037] The road signal handhole well of the utility model is simple and reasonable, has strong integrity, improves the structural strength and stability of the handhole well, is easy to construct, uses the original road surface milling material for well foundation construction, reduces the discharge of construction waste, reduces pollution, and protects the environment; prevents rainwater from entering and causing the well structure to be flooded, reduces the occurrence of damage, simplifies the process, reduces the cost, and improves the maintainability of the handhole well structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0039] Figure 1 A schematic cross-sectional view of a road signal handhole well according to an embodiment of the utility model;

[0040] Figure 2 It is a schematic plan view of a square hand hole well structure according to an embodiment of the utility model;

[0041] Figure 3 It is a cross-sectional schematic diagram of the connection between the PE pipe and the inner wall of the well chamber according to an embodiment of the utility model.

[0042] The symbols in the accompanying drawings are:

[0043] 1. Well foundation, 2. Well chamber, 3. Well bottom structure, 4. Well ring, 5. Well cover, 6. Cable pipe, 7. Seat slurry structure, 8. Triangle ash, 9. Inner side of wall. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0048] The utility model embodiment provides a road signal hand hole well, see Figure 1 As shown, including:

[0049] A well base 1, a well chamber 2, and a well ring 4 are arranged in sequence from bottom to top; the well chamber 2 is an internal hollow structure; wherein a cable tube 6 is embedded in the inner wall of the well chamber 2 along the radial direction of the well chamber; a cable is passed through the cable tube 6, and the cable is introduced into the well chamber 2 and connected to the signal light lead in the well chamber 2;

[0050] In this embodiment, the cable tube 6 is a PE tube.

[0051] This embodiment uses a square hand hole well, such as Figure 2 shown.

[0052] The well ring 4 is provided with holes inside, and the holes include upper and lower sections, wherein the lower section is a through hole and the upper section is a countersunk hole; a well cover plate 5 that can be opened and closed is connected inside the countersunk hole; the outer ring of the countersunk hole forms an annular structure, which improves the rigidity of the well ring 4;

[0053] The well foundation 1 is paved with C15 concrete and / or original road surface milling material, and plays a role in supporting the well chamber 2.

[0054] The original road milling material includes: asphalt gravel mixture scraped off the original damaged asphalt sand road surface with a milling machine; the original road milling material is used as the original road surface material backfill for cushion foundation, which reduces the emission of construction waste, saves costs, reduces pollution and protects the environment.

[0055] The well chamber 2 is constructed with MU10 standard bricks and M10 cement mortar for wall construction, and the inner side 9 of the wall is plastered with 1:2 cement mortar.

[0056] The inner wall of well chamber 2 should have a smooth surface, the masonry mortar should be full, and the joints should be smooth.

[0057] A well bottom structure 3 is laid on the inner side of the well foundation 1 at the bottom of the well chamber 2. The well bottom structure 3 is paved with a single layer of bricks to reinforce the well body structure.

[0058] A mortar seat structure 7 is used between the well ring 4 and the well chamber 2 , and the outer edge of the mortar seat structure 7 is coated with triangular plaster 8 using a 1:2 waterproof cement mortar.

[0059] In this embodiment, the manhole ring 4 is made of C30 concrete, and the manhole cover 5 is made of composite material.

[0060] The top surface elevation of the well ring 4 is higher than the ground elevation of the earth shoulder.

[0061] The top surface elevation of the well ring 4 is the same as the elevation of the road surface, and the edge of the well ring 4 is in line with the road surface.

[0062] See also Figure 3 As shown, the connection between the inner wall of the well chamber 2 and the PE pipe is paved with C20 fine stone concrete, and the paving thickness is ≥ the outer diameter of the PE pipe.

[0063] The thickness of the well base 1 is 60 mm.

[0064] The distance between the bottom side of the PE pipe and the bottom structure 3 is 240 mm.

[0065] The road signal handhole well of the utility model embodiment is simple and reasonable, has strong integrity, improves the structural strength and stability of the handhole well, is easy to construct, uses the original road surface milling material for the well foundation construction, reduces the emission of construction waste, reduces pollution, and protects the environment; improves the maintainability of the handhole well structure, prevents rainwater from entering and flooding the well structure, reduces the occurrence of damage, simplifies the process, and reduces the cost.

[0066] Application Examples

[0067] 1. Construction plan:

[0068] 1. Before laying, check the benchmark size and elevation, and measure and lay out the center line of the hand hole. Before laying, wet the bricks with water, and control the moisture content to about 10-15%. Generally, it is appropriate to allow water to penetrate 10-15mm around the bricks.

[0069] 2. Before building the well foundation, clean the cushion surface of the well foundation and sprinkle water to moisten it.

[0070] 3. See Figure 2 As shown, when constructing a square well with a hand hole, a line must be hung: first hang the line to the midpoint, and use the vertical line of the hanging line as the midpoint during construction. Use a steel ruler to check whether the size and distance of each side meet the requirements. Ensure that the wall is vertical and the well is square when constructing the square well.

[0071] 4. Use the one shovel mortar, one brick, one squeeze method for masonry. The masonry is layered, staggered up and down, overlapped inside and outside, and the corners and joints of the masonry are built at the same time. Those that cannot be built at the same time should be left with step differences.

[0072] 5. Pay attention to the roundness when building the circular manhole. Check the inner diameter with a hanging line, and check each skin of the closing section to see if there is any deviation. The extension of the main pipe (main pipe) in the lower part of the well, especially the two sides of the bottom of the pipe, should be compacted with mortar and broken bricks to prevent leakage. The closing height should be calculated in advance, and it should be calculated by shrinking 2cm per layer, that is, shrinking 4cm per circle.

[0073] 6. Cement mortar must be used up within 4 hours and overnight mortar must not be used.

[0074] 7. When building various handhole wells, it is necessary to cooperate with the construction drainage. After the completion of the masonry, the pumping can be stopped only after the mortar has finally set (usually 3-4 hours).

[0075] 8. The manhole ring is fixed with 1:2 cement mortar. The manhole ring surface is at the same elevation as the road surface. The manhole ring surface is higher than the ground elevation of the earth shoulder.

[0076] 9. The reserved PE pipe installation area of ​​the handhole well should be installed as the masonry is being built. The diameter, direction and elevation of the reserved PE pipe installation area should meet the design requirements, and the connection between the PE pipe and the well wall should be tight. The pipe opening of the handhole well connected to the circular pipe should be flush with the inner wall of the well.

[0077] 10. After the manhole well is built to the designed elevation, immediately construct the well bottom, install the well ring and cover the well cover. Set the manhole well on the driveway and paved road surface. After the construction is completed, the surface of the well cover and the cover seat should be flush with the road surface.

[0078] 11. Backfilling around the manhole well: Before backfilling, the painting and waterproofing of the manhole well have been completed and meet the quality requirements and have been accepted; the backfilling of the manhole well is carried out by manual layered symmetrical backfilling method, and after manual paving and leveling, it is mechanically compacted until it is flush with the surface of the manhole well.

[0079] 2. Construction technology:

[0080] Bricks used for masonry should be from the same manufacturer. The surface of the bricks should be flat without large corners, and the strength should meet the design requirements to ensure the adhesion between the mortar and bricks.

[0081] When laying bricks, follow the brick hanging line of the skin number rod. The skin number rod is used to control the elevation of each part of the well chamber and the thickness of the mortar joint. In fact, the thickness of the brick joint is adjusted between 8-10mm for every 10 bricks. The skin number rod should be erected firmly and reliably, the bottom of the rod should be padded and nailed firmly, and the bottom elevation should be leveled with a level, which should be accurate and uniform.

[0082] There are two types of brick masonry: one vertical and one horizontal, and three vertical and one horizontal. Before construction, lay the bricks according to the specified masonry method, and arrange the bricks according to the mortar joint width of 8-10mm. Make sure that the mortar joints of the bottom bricks are staggered. The brick surface of the same brick layer should be horizontal, and the masonry methods of each part on the same wall should be unified and consistent from top to bottom.

[0083] The bricklaying method is the "three-in-one" method, that is, "one shovel of mortar, one brick, one squeeze and knead". The vertical joints should be squeezed or added with mortar, commonly known as "top mortar". First, use a brick knife to spread the mortar, and hold the bricks with both hands to squeeze the mortar from front to back and lay them flat. After adjusting the alignment, "upper line, lower edge, left and right should be level". Scrape the top mortar while laying, always keep the inside and outside overlap, stagger the upper and lower joints (1 / 4 brick length), and it is strictly forbidden to use water to flush the mortar and fill the joints. Adhere to the method of three skins and one hanging, five skins and one leaning to ensure the quality of masonry. The branch pipes, embedded pipes and escalators are accurately embedded in size and position to avoid subsequent chiseling and patching.

[0084] Before plastering, sprinkle water on the wall to moisten it, chisel the uneven parts of the surface or fill them with 1:3 cement mortar. During construction, apply from bottom to top, determine the approximate plaster thickness, and use a plaster to control its vertical flatness. Then use a steel trowel to apply plaster according to the thickness of the plaster, use a straight pressure strip for the initial leveling, and then use a wooden trowel to roughly grind. After the water is absorbed according to the degree of mortar, the first calendering is carried out. The force used for leveling and calendering should be consistent in weight and direction. When there is a slight mark on the surface layer due to the hand pressure, the second calendering is carried out, and then maintenance is carried out.

[0085] Quality requirements for handhole wells:

[0086] a. The walls of the well are perpendicular to each other without any continuous seams, ensuring that the mortar is full, the seams are flat, the surface is smooth and there are no hollows or cracks.

[0087] b. The flow channel in the well must be smooth, the steps must be firmly installed and accurately positioned, and there must be no debris such as construction waste.

[0088] c. The well frame and cover are intact, installed stably and positioned correctly.

[0089] d. Allowable deviation of hand hole well:

[0090] (1) Well chamber dimensions: length, width: ±20mm; diameter ±20mm;

[0091] (2) Manhole cover elevation: non-road surface ±20mm; road surface: consistent with road regulations;

[0092] (3) Well bottom elevation: (D<1000mm)±10mm;

[0093] (D≥1000mm)±15mm.

[0094] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0095] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A road signal hand hole well, It is characterized in that include: The well base, well chamber and well ring are arranged in sequence from bottom to top; the well chamber is an internal hollow structure; wherein a cable tube is embedded in the inner wall of the well chamber along the radial direction of the well chamber; a cable is passed through the cable tube, the cable is introduced into the well chamber and connected to the signal light lead in the well chamber; The well ring is provided with a hole inside, and the hole includes an upper section and a lower section, wherein the lower section is a through hole and the upper section is a countersunk hole; a well cover plate that can be opened and closed is connected inside the countersunk hole; the outer ring at the countersunk hole forms an annular structure, which improves the rigidity of the well ring; The well foundation is paved with C15 concrete and / or original road surface milling material to support the well chamber.

2. The road signal handhole according to claim 1, It is characterized in that A well bottom structure is laid on the inner side of the well foundation at the bottom of the well chamber. The well bottom structure is paved with a single layer of bricks to reinforce the well body structure.

3. The road signal handhole according to claim 1, It is characterized in that A mortar seat structure is used between the well ring and the well chamber, and the outer edge of the mortar seat structure is coated with triangular mortar using a 1:2 waterproof cement mortar.

4. The road signal handhole according to claim 1, It is characterized in that The well chamber is constructed with MU10 standard bricks and M10 cement mortar for wall construction, and the inner side of the wall is plastered with 1:2 cement mortar.

5. The road signal handhole according to claim 1, It is characterized in that The manhole ring is made of C30 concrete, and the manhole cover is made of composite material.

6. The road signal handhole according to claim 1, It is characterized in that The top surface elevation of the well ring is higher than the ground elevation of the earth shoulder.

7. The road signal handhole according to claim 1, It is characterized in that The top surface elevation of the well ring is the same as the elevation of the road surface, and the edge of the well ring is in line with the road surface.

8. The road signal handhole according to claim 4, It is characterized in that The connection between the inner wall of the well chamber and the cable pipe is paved with C20 fine stone concrete, and the paving thickness is ≥ the outer diameter of the cable pipe.

9. The road signal handhole according to claim 2, It is characterized in that The distance between the bottom side of the cable pipe and the well bottom structure is 230-250 mm.

10. The road signal handhole according to claim 1, It is characterized in that The thickness of the well foundation is ≥60mm.

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