CN203755344U - Prefabricated split mounting type inspection well - Google Patents
Prefabricated split mounting type inspection well Download PDFInfo
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- CN203755344U CN203755344U CN201320890733.8U CN201320890733U CN203755344U CN 203755344 U CN203755344 U CN 203755344U CN 201320890733 U CN201320890733 U CN 201320890733U CN 203755344 U CN203755344 U CN 203755344U
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Abstract
The utility model discloses a prefabricated split mounting type inspection well which comprises a base, at least one section of pitshaft duct piece and a shrunk opening section which are sequentially spliced through a stepped structure, wherein the side wall of the pitshaft duct piece close to the base is provided with a through hole, the upper opening of the shrunk opening section is provided with a shaft cover, the base, the pitshaft duct piece and the shrunk opening section are all reinforced concrete pieces, and the shaft cover is a reinforced concrete piece or an iron casting. The pitshaft duct piece is spliced by two semicircular duct pieces, the side edges of the two semicircular duct pieces are provided with embedded bolts, and embedded bolts of the two semicircular duct pieces are connected through clamping groove steel pieces and nuts. Novel rivet pieces are arranged in the splicing gaps of the two semicircular duct pieces, the front parts of the novel rivet pieces are inserted into the ground along the splicing gaps of the two semicircular duct pieces, and the rear parts of the novel rivet pieces cling to the inner wall of the two semicircular duct pieces separately along the longitudinal gaps. The prefabricated split mounting type inspection well has the characteristics of simpleness in disassembly and assembly, convenience in conveying, safety and reliability, economy and environment-friendliness. The defects of long construction period, time and labor waste, high manufacturing cost, low bearing capacity and the like in the traditional building mode for the municipal pipeline inspection well are solved, and the prefabricated split mounting type inspection well has important engineering practical value and market economic value.
Description
Technical field
The utility model relates to the underground inspection shaft of the pipelines such as communication in a kind of city, water supply, heating installation, blowdown, relates in particular to a kind of precast splice type manhole.
Background technology
Manhole is engineering common in municipal engineering, and manhole has been linked up pipe network and ground, is convenient to carry out the work such as maintenance, desilting, in the laying of the underground utilities such as the communication of urban construction, water supply, heating installation, blowdown and reinstatement works, plays an important role.According to related design code requirement, generally will install and set up manhole every tens of rice or hundreds of rice, the quantity of manhole is many, structure and construction technology simply, the general difference of inspection-pit size of same type is little.In Practical Project, the kind of inspection-pit is more, as solid clay brick is built manhole, plastic inspection well, cast-in-situ steel reinforced concrete manhole etc.
Prior art one:
Traditional municipal pipeline manhole is constructed, and adopts the mode of solid clay brick block, cement coating more.
At least there is following shortcoming in above-mentioned prior art one:
Solid clay brick is built manhole, and intensity is low, water permeability is high, mortar leakiness between gap, uses excoriation, loose after a period of time inside, easily causes well body entirety to sink, and periphery roadbed subsidence, even can polluted underground water resource.And because the raw material of loam brick are loam, when sintering, need to take and waste a large amount of cultivated land resources.
Prior art two:
On domestic market, occur that specialty does the enterprise of plastic inspection well.Relatively common are sharp general board plastic inspection well, river horse board plastic inspection well, sub-safe board plastic inspection well etc.
At least there is following shortcoming in prior art two:
Plastic inspection well no doubt has much advantages of oneself, but also has its inevitable defect.First, the restricted diameter of plastic inspection well (being generally less than 1m), intensity is lower, and road vehicle load is larger on its impact.The well seat based process of plastic inspection well trouble in addition, and in backfilling process, easily there is the problem that pit shaft tilts, bring and repeat construction, cause the increase of noncontrollable cost.
Prior art three:
Concrete block-type manhole is generally considered to be the ideal substitute of clay fragment of brick, is the manhole material of using at present often.
At least there is following shortcoming in prior art three:
Although replaced clay fragment of brick with concrete block, its construction still needs situ wet operation, long construction period, can not be completely free of the situation of the on-the-spot groove that dries in the air for a long time, inadaptable with pipeline rapid construction.What concrete block-type manhole was suitable for builds internal diameter less (about 1m) by laying bricks or stones, and antidetonation, anti-seepage effect are not good, and because of the difference of its material source, appearance and size and production technology, has very big-difference.
Prior art four:
The Cast-in-situs type steel concrete manhole that steadiness is good, intensity is high, seal is desirable.
At least there is following shortcoming in prior art four:
Cast-in-situ steel reinforced concrete manhole, the construction period is long, difficulty is large, complex process, on-the-spot formwork for placing that need to be a large amount of, heavy duty service has a big risk, and does not meet actual municipal short requirement of manhole construction period.
Utility model content
The purpose of this utility model is to provide a kind of quick, simple to operate, economic environmental protection of constructing, widely applicable, safe and reliable precast splice type manhole.
The purpose of this utility model is achieved through the following technical solutions:
Precast splice type manhole of the present utility model, comprise the base that splices successively by ledge structure, at least one section of pit shaft section of jurisdiction, section closes up, the sidewall of the pit shaft section of jurisdiction of close base is provided with through hole, the well lid that is provided with suitable for reading of the described section that closes up, described base, pit shaft section of jurisdiction and the section that closes up are steel concrete part, and described well lid is steel concrete part or ironcasting.
The technical scheme being provided by above-mentioned the utility model can be found out, the precast splice type manhole that the utility model embodiment provides, owing to comprising the base splicing successively by ledge structure, at least one section of pit shaft section of jurisdiction, section closes up, the sidewall of the pit shaft section of jurisdiction of close base is provided with through hole, the well lid that is provided with suitable for reading of the section that closes up, base, pit shaft section of jurisdiction and the section that closes up are steel concrete part, well lid is steel concrete part or ironcasting, each prefabricated units are carried assembled convenience, can greatly shorten the construction period and reduce labour intensity, there is construction fast, simple to operate, economic environmental protection, widely applicable, safe and reliable many merits.
Brief description of the drawings
Fig. 1 a is base plan structure schematic diagram in the utility model embodiment;
Fig. 1 b is the main TV structure schematic diagram of base in the utility model embodiment;
Fig. 2 a is the semicircle perspective view of the pit shaft section of jurisdiction with through hole in the utility model embodiment;
Fig. 2 b is the semicircle side-looking structural representation of the pit shaft section of jurisdiction with through hole in the utility model embodiment;
Fig. 2 c is the overall structure schematic diagram of the pit shaft section of jurisdiction with through hole in the utility model embodiment;
Fig. 3 is the structural representation of pit shaft pipe sheet assembling in the utility model embodiment;
Fig. 4 is the structural representation of closing in section in the utility model embodiment;
Fig. 5 a is the structural representation of pre-embedded bolt in the utility model embodiment;
Fig. 5 b is the structural representation of clamp nut in the utility model embodiment;
Fig. 5 c1 is the structural representation of draw-in groove steel disc one in the utility model embodiment;
Fig. 5 c2 is the structural representation of draw-in groove steel disc two in the utility model embodiment;
Fig. 5 c3 is the structural representation of draw-in groove steel disc three in the utility model embodiment;
Fig. 5 d is the structural representation of link unit in the utility model embodiment;
Fig. 6 is the structural representation of novel holdfast sheet in the utility model embodiment;
The integral assembling view of the precast splice type manhole that Fig. 7 provides for the utility model embodiment;
The overall structure schematic diagram of the precast splice type manhole that Fig. 8 provides for the utility model embodiment.
In figure: 1, base, 2, pit shaft section of jurisdiction with through hole, 3, through hole, 4, ledge structure, 5, pre-embedded bolt, 6, general pit shaft section of jurisdiction, 7, the section that closes up, 8, well lid, 9, nut, 10, draw-in groove steel disc, 11, bolt draw-in groove, 12, novel holdfast sheet.
Detailed description of the invention
To be described in further detail the utility model embodiment below.
Precast splice type manhole of the present utility model, its preferably detailed description of the invention be:
Comprise the base that splices successively by ledge structure, at least one section of pit shaft section of jurisdiction, section closes up, the sidewall of the pit shaft section of jurisdiction of close base is provided with through hole, the well lid that is provided with suitable for reading of the described section that closes up, described base, pit shaft section of jurisdiction and the section that closes up are steel concrete part, and described well lid is steel concrete part or ironcasting.
Described pit shaft section of jurisdiction is spliced by two semicircular section of jurisdiction, and the lateral margin of described two semicircular section of jurisdiction is respectively equipped with pre-embedded bolt, between the pre-embedded bolt of two semicircular section of jurisdiction, is connected with nut by draw-in groove steel disc.
Described draw-in groove steel disc is strip, and the two ends of described draw-in groove steel disc are respectively equipped with bolt draw-in groove or middle part is provided with a long bolt draw-in groove.
In the time that the two ends of described draw-in groove steel disc are respectively equipped with bolt draw-in groove, the outer end opening of described bolt draw-in groove or sealing.
Between the splicing seams of described two semicircular section of jurisdiction, be provided with novel holdfast sheet.
Described novel holdfast sheet is the rectangular laminated structure of head band point, and the rear portion of rectangular laminated structure is provided with longitudinal slot.
After the front portion of described novel holdfast sheet hammers in soil along the splicing seams of described two semicircular section of jurisdiction, the rear portion of novel holdfast sheet longitudinally gap is separately attached to the inwall of described two semicircular section of jurisdiction.
Diameter 1～2m, the degree of depth 2～5m of this manhole.
Precast splice type manhole of the present utility model, dismounting is simple, convenient in carrying, safe and reliable, economic environmental protection.The shortcomings such as the long construction period, the time and effort consuming cost that exist in traditional municipal pipeline manhole build mode are high, supporting capacity is weak are solved.
Specific embodiment:
As shown in Figure 7, Figure 8, precast splice type manhole comprises with the reinforced concrete prefabricated pit shaft section of jurisdiction of pre-embedded bolt, the section, well lid, base of closing up etc., also comprises connection steel disc and nut etc., and is aided with a kind of novel holdfast sheet and jointly forms.Do not preparing under the condition of ladder in addition, several roads reinforcing bar can be set foot-operated on pit shaft section of jurisdiction, so that workman climbs discrepancy.
Pit shaft section of jurisdiction is main primary structure member, plays the effect of gear soil, bears soil pressure around; Be sitting on the pit shaft section of jurisdiction of the basecoat band through hole on base portal be set, between adjacent pit shaft section of jurisdiction by ledge structure clamping; Pit shaft section of jurisdiction is that two semicircular structures are assembled, in installation process, connects and has some strength, rigidity and stability between segment assembly for guaranteeing, adopts draw-in groove steel disc to connect between the section of jurisdiction of two semicircular structures, and nut is fixed; In the time that the connection gap between the section of jurisdiction of two semicircular structures is excessive, be aided with a kind of novel holdfast sheet that can squeeze into the soil body and be fixedly connected with, improve structural integrity; Add the prefabricated closing in section of taper in the subaerial position of pit shaft, the section that the closes up well lid sealing manhole that adds suitable for reading.Whole installation splicing is carried out from bottom to top successively.
Can be according to the pipeline of different purposes in concrete enforcement, design different manhole sizes.Factory can need to production seriation according to actual municipal engineering size pit shaft section of jurisdiction, meet according to this application needs of all kinds well type.This simple assembled connection design, can make the good characteristic of prefabricated reinforced concrete material be brought into play.
Each precast assembly unit can be according to pipeline applications, designs corresponding dimensions, easy accessibility.Each precast assembly unit adopts C25 concrete material, and base, pit shaft section of jurisdiction, the section that closes up etc. respectively adopts corresponding arrangement of reinforcement.Can different pit shaft section of jurisdiction diameter, thickness, section of jurisdiction number and the pit shaft number of plies be set according to the diameter of actual inspection well and the degree of depth.
As an example of the manhole of diameter 1.5m, cutting depth 3m example, each parts are elaborated below:
1, base:
As shown in Fig. 1 a, 1b, base adopts C25 concrete material, and the recessed ledge structure of outer rim is made on top, and bottom, basecoat pit shaft section of jurisdiction just in time can be sitting in recessed ledge frame.Because base will bear the total weight of section of jurisdiction, top, so base is wanted guaranteed strength requirement.Substructure height 80mm, inner edge diameter 1500mm, external diameter 1580mm, step width 40mm, inside and outside step discrepancy in elevation 30mm.Base adopts HPB235 (Q235) to press in length and breadth to arrangement of reinforcement Φ 12@200.
2, pit shaft section of jurisdiction:
The upper and lower sectionally smooth join of shaft structure, every section by two assembled connecting to form in semicircle section of jurisdiction with pre-embedded bolt.Pit shaft section of jurisdiction thickness 40mm, internal diameter 1500mm, external diameter 1580mm, step shape is made in upper and lower end, pit shaft section of jurisdiction, sits to put while installation and can mutually coincide between ledge structure.Between two semicircle segment joints, connect to form cylindrical shell by pre-embedded bolt, draw-in groove steel disc and nut.Pit shaft section of jurisdiction adopts C25 concrete material, arrangement of reinforcement HPB235 (Q235) Φ 12@220.
(1) the pit shaft section of jurisdiction joining with base:
As shown in Fig. 2 a, 2b, 2c, pipeline hole is offered at the middle part, two semicircle sections of jurisdiction being sitting on base.Portal design is outer bore little (250mm), the conical camber through hole of interior bore large (300mm), the sealing so that pipeline is plastered after installing.The recessed step shape of inner edge is made in the upper end of this layer of section of jurisdiction, the high 30mm of step, wide 20mm, and section of jurisdiction entirety height is 830mm.
(2) general pit shaft section of jurisdiction:
As shown in Figure 3, general pit shaft section of jurisdiction is arranged on the section of jurisdiction that is provided with pipeline through hole, and taper is closed up under section.This section of pit shaft is spliced by two semicircle sections of jurisdiction equally, and pit shaft section of jurisdiction whole height is 1m.The recessed step shape of outer rim is made in lower end, pit shaft section of jurisdiction, the high 30mm of step, and wide 20mm, just in time matches with the section of jurisdiction upper end step that is provided with through hole; The recessed ledge structure of inner edge is made in upper end, section of jurisdiction, the high 30mm of step, and wide 20mm, just in time matches with the section lower end ledge structure that closes up.
3, closing in section:
As shown in Figure 4, closing in Duan Weiyi conical through-hole structure, upwards aperture dwindles, and whole height is 1000mm.The recessed ledge structure of outer rim is made in the section that closes up lower end, the high 30mm of step, and wide 20mm, is just in time sitting on the ledge structure of upper end, pit shaft section of jurisdiction.Closing in segment structure thickness is 40mm, its underpart through-hole diameter consistent with pit shaft section of jurisdiction diameter dimension (internal diameter 1500mm, external diameter 1580mm), top through-hole diameter with install well lid diameter consistent (Φ 700mm) additional.
4, linkage unit:
(1) as shown in Fig. 5 a, 5b, 5c1,5c2,5c3,5d, linkage unit mainly comprises draw-in groove steel disc (6), pre-embedded bolt and nut (each 6 pairs) composition, the visual particular exam well size increase and decrease of each linkage unit (being pre-embedded bolt, nut, draw-in groove steel disc) quantity, steel disc also can design several multi-form mode of grooving according to actual needs.Wherein draw-in groove steel disc adopts Q235 structural carbon steel, steel plate thickness 3mm, and middle symmetry has draw-in groove, and the pre-embedded bolt on pit shaft section of jurisdiction can just in time be stuck in wherein.Steel disc becomes arc shaped to be adjacent to pit shaft section of jurisdiction inwall, finally fixes with nut, and two semicircle pit shaft sections of jurisdiction are coupled together by steel disc.
(2) as shown in Figure 6, excessive when splicing gap, two sections of jurisdiction, while exceeding 3mm, can be aided with a kind of novel holdfast sheet that can squeeze into the soil body, improve the globality of shaft structure.Holdfast sheet adopts Q235 carbon steel to make, thick 3mm, and it is pointed that front end becomes, to insert the soil body; Anchoring section length 340mm in soil, the each wide 20mm of afterbody two fin, long 170mm, reliable manpower effect makes its two fin be adjacent to pit shaft section of jurisdiction, plays the effect of being fixedly connected with.
5, the sealing of seam between seam and pipeline and portal between section of jurisdiction:
The seam of the each prefabricated pipe section component assembly of manhole, can adopt cement mortar to be bonded and sealed and the mode that combines of rubber seal flexible sealing; Pipeline seals with same mortar connection, the rubber flexible of adopting of sealing of opening holes the mode combining.
6, overall structure and installation:
As shown in Figure 7, Figure 8, integral installation process is: after pipeline foundation ditch has excavated on request, and bottom-up mounting seat successively, assembled with the pit shaft section of jurisdiction of pipeline through hole and general pit shaft section of jurisdiction, finally add a cover close up section and well lid.
In the time of mounting shaft bobbin sheet, first two semicircle sections of jurisdiction are placed on request to the tram of ledge structure by workman, then by nut (6 pairs), draw-in groove steel disc (6) and prefabricated bolt (6 pairs) are connected and fixed, to form complete stable pit shaft body.When two splicing gaps, section of jurisdiction are when excessive (exceeding 3mm), in the soil body, squeeze into holdfast sheet towards periphery along its gap, work the effect of reinforcing the connection.
The utility model is the circular steel reinforced concrete precast assembly structure for urban Underground pipeline manhole, is applicable to manhole diameter 1～2m, cutting depth 2～5m.Because cutting depth is more shallow, diameter is little, can not consider the impact of supporting and underground water, can be after pipeline excavation of foundation pit completes, directly by workman's assembled completing on request.
The beneficial effect that technical solutions of the utility model are brought:
The utility model is mainly prefabricated steel and concrete structure, and each prefabricated units are carried assembled convenience, can greatly shorten the construction period and reduce labour intensity, has solved the long construction period, the time and effort consuming high cost shortcoming that in traditional municipal pipeline manhole build mode, exist;
In the situation that design of foundation pit is measure-alike, the utility model is 2～3 times of traditional brick space enclosing structure intensity, and its rigidity of structure is large, can improve by strong rammer the compactness of manhole surrounding backfill, reduces the sinking of backfill, improves road quality.
In a word, it has quick, simple to operate, the economic environmental protection of construction, widely applicable, safe and reliable many merits.
The above; it is only preferably detailed description of the invention of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. a precast splice type manhole, it is characterized in that, comprise the base that splices successively by ledge structure, at least one section of pit shaft section of jurisdiction, section closes up, the sidewall of the pit shaft section of jurisdiction of close base is provided with through hole, the well lid that is provided with suitable for reading of the described section that closes up, described base, pit shaft section of jurisdiction and the section that closes up are steel concrete part, and described well lid is steel concrete part or ironcasting.
2. precast splice type manhole according to claim 1, it is characterized in that, described pit shaft section of jurisdiction is spliced by two semicircular section of jurisdiction, and the lateral margin of described two semicircular section of jurisdiction is respectively equipped with pre-embedded bolt, between the pre-embedded bolt of two semicircular section of jurisdiction, is connected with nut by draw-in groove steel disc.
3. precast splice type manhole according to claim 2, is characterized in that, described draw-in groove steel disc is strip, and the two ends of described draw-in groove steel disc are respectively equipped with bolt draw-in groove or middle part is provided with a long bolt draw-in groove.
4. precast splice type manhole according to claim 3, is characterized in that, in the time that the two ends of described draw-in groove steel disc are respectively equipped with bolt draw-in groove, and the outer end opening of described bolt draw-in groove or sealing.
5. precast splice type manhole according to claim 2, it is characterized in that, between the splicing seams of described two semicircular section of jurisdiction, be provided with novel holdfast sheet, described novel holdfast sheet is the rectangular laminated structure of head band point, and the rear portion of rectangular laminated structure is provided with longitudinal slot.
6. precast splice type manhole according to claim 5, it is characterized in that, after the front portion of described novel holdfast sheet hammers in soil along the splicing seams of described two semicircular section of jurisdiction, the rear portion of novel holdfast sheet longitudinally gap is separately attached to the inwall of described two semicircular section of jurisdiction.
7. according to the precast splice type manhole described in claim 1 to 6 any one, it is characterized in that diameter 1～2m, the degree of depth 2～5m of this manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890733.8U CN203755344U (en) | 2013-12-31 | 2013-12-31 | Prefabricated split mounting type inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890733.8U CN203755344U (en) | 2013-12-31 | 2013-12-31 | Prefabricated split mounting type inspection well |
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| Publication Number | Publication Date |
|---|---|
| CN203755344U true CN203755344U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890733.8U Withdrawn - After Issue CN203755344U (en) | 2013-12-31 | 2013-12-31 | Prefabricated split mounting type inspection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203755344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696443A (en) * | 2013-12-31 | 2014-04-02 | 中国地质大学（北京） | Prefabricated assembly-type inspection well |
-
2013
- 2013-12-31 CN CN201320890733.8U patent/CN203755344U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696443A (en) * | 2013-12-31 | 2014-04-02 | 中国地质大学（北京） | Prefabricated assembly-type inspection well |
| CN103696443B (en) * | 2013-12-31 | 2016-01-13 | 中国地质大学（北京） | Precast splice type manhole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |