CN105586990A - Multi-layer support inspection well - Google Patents
Multi-layer support inspection well Download PDFInfo
- Publication number
- CN105586990A CN105586990A CN201510946957.XA CN201510946957A CN105586990A CN 105586990 A CN105586990 A CN 105586990A CN 201510946957 A CN201510946957 A CN 201510946957A CN 105586990 A CN105586990 A CN 105586990A
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- Prior art keywords
- bearing
- well lid
- groove
- top layer
- draw
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Classifications
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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
-
- 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
- E02D29/1427—Locking devices
-
- 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
- E02D29/1481—Security devices, e.g. indicating unauthorised opening
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to the technical field of road construction, in particular to a multi-layer support inspection well. The multi-layer support inspection well comprises bottom-layer supports, middle-layer supports, a top-layer support, an upper well lid and auxiliary well lids. A first well lid supporting stand, second well lid supporting stands and third well lid supporting stands are disposed on the inner side wall of the top-layer support, the inner side walls of the middle-layer supports and the inner side walls of the bottom-layer supports correspondingly. The second well lid supporting stands or the third well lid supporting stands are used for building the auxiliary well lids. The upper well lid is fixed to the first well lid supporting stand of the top-layer support through anti-theft abnormal-shaped bolts. The outer side wall of the upper well lid and the upper end part of the inner side wall of the top-layer support are connected through clamping grooves and clamping nails, the lower end parts of the outer side walls of the middle-layer supports and the upper end parts of the inner side walls of the bottom-layer supports are connected through clamping grooves and clamping nails, and the lower end part of the outer side wall of the top-layer support and the upper end parts of the inner side walls of the middle-layer supports are connected through clamping grooves and clamping nails. Outwards extending bottom plates with through holes are disposed on the bottom-layer supports and fixing parts penetrate through the through holes to fix the outwards extending bottom plates into a road surface base layer. The multi-layer support inspection well has multiple guarantees of prevention of thievery, prevention of making noise, prevention of falling, prevention of displacement and the like.
Description
Technical field
The present invention relates to road construction technical field, relate in particular to a kind of multilayer bearing inspection shaft.
Background technology
In recent years, because the maintenance people well damage on highways and streets causes casualties, carThe accident of subsideing occurs often, and wherein, it is to cause that overload of vehicle phenomenon rolls seriously, repeatedlyPeople's well damages major reason frequently, brings thus very large potential safety hazard. Along with Communication in ChinaThe high speed development of industry, Ge great operator pays much attention to communication manhole safety, construction at different levels and dimensionThe daily inspection of the unit of protecting safeguards that dynamics is all very large, once it is all timely to find that there is people's well breakoff phenomenonRespond and process, in order to avoid larger destruction occurs. But because the maintenance of people's well takies road width,All there are larger restriction construction site condition and engineering time, cause working measure to put in place, repairReinstate fruit is undesirable, and often curing time deficiency just comes into operation hastily, form to destroy →The vicious circle of repairing → destroying in a short time again, not only expends a large amount of human and material resources, Er QiexiaoFruit is undesirable.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is that the safety that in solution prior art, inspection shaft exists is hiddenThe problem of trouble and mounting technique complexity.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of multilayer bearing inspection shaft, bagDraw together bottom bearing, middle level bearing, top layer bearing, upper well lid and sub-well lid; Described top layer bearing,On the madial wall of middle level bearing and bottom bearing, be provided with well lid brace table, be respectively the first wellLid brace table, the second well lid brace table and the 3rd well lid brace table; Described the second well lid brace tableOr the 3rd well lid brace table be used for setting up described sub-well lid; Described upper well lid is by antitheft special-shaped spiral shellBolt is fixed on the first well lid brace table of described top layer bearing; The lateral wall of described upper well lid and instituteThe upper part of stating the madial wall of top layer bearing is connected with bail by draw-in groove; Described top layer bearingThe end portion of lateral wall and the upper part of the madial wall of described middle level bearing by draw-in groove andBail connects; The end portion of the lateral wall of described middle level bearing and the inner side of described bottom bearingThe upper part of wall is connected with bail by draw-in groove; Described bottom bearing is provided with outside through holeStretch base plate, described overhanging base plate passes through hole by fixture and is fixed in sub-surface.
Wherein, described bail is positioned on the madial wall of described top layer bearing, and is positioned at described firstThe top of well lid brace table; Described draw-in groove is positioned on the lateral wall of described upper well lid; Described upper wellOn the lateral wall of lid, also offer chute; Described chute is communicated with draw-in groove, for described upper well lidInstallation.
Wherein, described draw-in groove is positioned on the madial wall of described bottom bearing, and is positioned at the described the 3rdThe top of well lid brace table; Described bail is positioned on the lateral wall of described middle level bearing; The described endOn the madial wall of layer bearing, also offer chute; Described chute is communicated with draw-in groove, for describedThe installation of layer bearing.
Wherein, described draw-in groove is positioned on the madial wall of described middle level bearing, and is positioned at described secondThe top of well lid brace table; Described bail is positioned on the lateral wall of described top layer bearing; Described topOn the madial wall of layer bearing, also offer chute; Described chute is communicated with draw-in groove, for described topThe installation of layer bearing. Wherein, described chute and described draw-in groove are communicated with formation L-type groove, Duo GesuoStating L-type groove is uniformly distributed along the madial wall of described bottom bearing.
Wherein, in being provided with, described bottom bearing stretches base plate, for supporting described sub-well lid.
Wherein, described middle level bearing is provided with multiple, and all adopts between the bearing of multiple described middle levelsThe mode of draw-in groove and bail is connected.
Wherein, described fixture is by passing the reinforcing bar of described overhanging base plate and being erected on described overhangingThe reinforcing bar of plate upper surface is welded.
Wherein, described antitheft special shaped screw bolt is successively through described upper well lid, top layer bearing and middle levelBearing.
(3) beneficial effect
Technique scheme of the present invention compared with prior art tool has the following advantages: the present invention is realThe antitheft special shaped screw bolt that the multilayer bearing inspection shaft that executing example provides is provided with has played and has prevented well lid quiltThe effect of stealing, adopts the connected mode of bail, draw-in groove to make the company between well lid and top layer bearingConnect compactness, can prevent that the loosening well lid causing of well lid from sending sound, bearing inspection while being forced throughLook into that the sub-well lid arranging in well can prevent from falling after well lid fragmentation or upper well lid not time otherForeign body falling is in well, and bottom bearing adopts fixture to be fixed to ground can prevent bottom bearingMovement. There is the multi-ensurings such as antitheft, anti-sound, fall arrest and anti-displacement. When installation successivelyExcavating and repairing of lower floor's bituminous concrete avoided in installation, and mounting process is simple, bearing inspectionWell road surface good integrity around, quality is guaranteed.
Brief description of the drawings
Fig. 1 is the structural representation of the multilayer bearing inspection shaft of the embodiment of the present invention;
Fig. 2 is the structural representation of the bottom bearing of the multilayer bearing inspection shaft of the embodiment of the present invention;
Fig. 3 is the phantom of the upper well lid of the multilayer bearing inspection shaft of the embodiment of the present invention;
Fig. 4 is that the outer wall of the upper well lid of the multilayer bearing inspection shaft of the embodiment of the present invention launches signalFigure;
Fig. 5 is the structural representation of the top layer bearing of the multilayer bearing inspection shaft of the embodiment of the present invention
Fig. 6 is the another kind of structural representation of the multilayer bearing inspection shaft of the embodiment of the present invention; .
In figure: 1: top layer bearing; 11: the first well lid brace tables; 2: middle level bearing; 21:The second well lid brace table; 3: bottom bearing; 31: the three well lid brace tables; 32: overhanging base plate;33: inside stretch base plate; 4: upper well lid; 41: antitheft special shaped screw bolt; 5: sub-well lid; 6: fixingPart; 71: draw-in groove; 72: bail; 73: chute.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, will tie belowClose the accompanying drawing in the embodiment of the present invention, to the technical scheme in the embodiment of the present invention carry out clear,Intactly describe, obviously, described embodiment is a part of embodiment of the present invention, and notWhole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not havingThere is the every other embodiment obtaining under the prerequisite of making creative work, all belong to the present inventionThe scope of protection.
As Figure 1-Figure 5, a kind of multilayer bearing inspection shaft that the embodiment of the present invention provides, bagDraw together bottom bearing 3, middle level bearing 2, top layer bearing 1, upper well lid 4 and sub-well lid 5; Top layerOn the madial wall of bearing 1, middle level bearing 2 and bottom bearing 3, be provided with well lid brace table, pointBe not the first well lid brace table 11, the second well lid brace table 21 and the 3rd well lid brace table 31.Upper well lid 4 is fixed on the first well lid brace table 11 of top layer bearing 1 by antitheft special shaped screw bolt 41,Particularly, the edge of upper well lid 4 is evenly provided with multiple antitheft special shaped screw bolts 41, antitheft special-shaped spiral shellBolt 41 is for being provided with irregularly shaped nuts, the bolt that need to just can back out with special spanner,The shape of nuts can be polygon, circular arc or polygon and circular combination. The second wellLid brace table 21 or the 3rd well lid brace table 31 are for setting up sub-well lid 5. The outside of upper well lid 4The upper part of wall and the madial wall of top layer bearing 1 is connected with bail 72 by draw-in groove 71; TopThe layer end portion of lateral wall of bearing 1 and the upper part of the madial wall of middle level bearing 2 are passed throughDraw-in groove 71 is connected with bail 72; The end portion of the lateral wall of middle level bearing 2 and bottom bearing 3The upper part of madial wall be connected with bail 72 by draw-in groove 71. Bottom bearing 3 is provided with bandHave the overhanging base plate 32 of through hole, overhanging base plate 32 is fixed on road surface by fixture 6 through through hole.The upper surface of upper well lid 4 can also be provided with non-slip patterns, and non-slip patterns can make "+", " 0 "Or arbitrary graphic pattern such as " T ".
When installation, first adopt fixture 6 to be fixed on road surface bottom bearing 3, lay lower floor's dropBlue or green concrete; Then middle level bearing 2 is installed to the 3rd well lid brace table 31 of bottom bearing 3Upper, lay middle level bituminous concrete; Again top layer bearing 1 is installed to second of middle level bearing 2On well lid brace table 21, lay upper strata bituminous concrete, finally upper well lid 4 is utilized antitheft differentShape bolt 41 is fixed on the first well lid brace table 11, wherein, and according to the setting of sub-well lid 5The installation opportunity of the sub-well lid 5 of location positioning. The multilayer bearing inspection shaft that the embodiment of the present invention providesThe antitheft special shaped screw bolt 41 being provided with has played the effect that prevents that well lid 4 is stolen, employing bail 72,The connected mode of draw-in groove 71 makes the compactness that is connected between well lid 4 and top layer bearing 1, can in caseThe loosening well lid causing of only upper well lid 4 sends sound while being forced through, in bearing inspection shaft, arrangesSub-well lid 5 can prevent from falling after well lid 4 fragmentations or upper well lid 4 not time other foreign matters pendantsFall in well, bottom bearing 3 adopts fixture 6 to be fixed to ground can prevent bottom bearing 3Movement, there is the multi-ensurings such as antitheft, anti-sound, fall arrest and anti-displacement. When installation successivelyExcavating and repairing of lower floor's bituminous concrete avoided in installation, and mounting process is simple, bearing inspectionWell road surface good integrity around, quality is guaranteed.
Further, as shown in Figure 3-Figure 5, bail 72 is positioned on the madial wall of top layer bearing 1,And be positioned at the top of the first well lid brace table 11; Draw-in groove 71 is positioned on the lateral wall of well lid 4;On the lateral wall of upper well lid 4, also offer chute 73; Chute 73 is communicated with draw-in groove 71, forThe installation of upper well lid 4. Particularly, chute 73 and draw-in groove 71 are communicated with formation L-type groove, multiple LType groove is uniformly distributed along the lateral wall of upper well lid 4. Upper well lid 4 is installed to top layer bearing 1Process in, the bail 72 of top layer bearing 1 enters along the chute 73 of upper well lid 4 lateral wallsThe inside of upper well lid 4, then rotates a certain angle, and makes the draw-in groove of well lid 4 lateral walls71 and the madial wall bail 72 of top layer bearing 1 fasten. It should be noted that, as shown in Figure 6,The setting position of draw-in groove 71 and bail 72 can exchange, and bail 72 can be located to top layer and prop upSeat 1 madial wall, is located at draw-in groove 71 lateral wall of upper well lid 4.
Further, draw-in groove 71 is positioned on the madial wall of bottom bearing 3, and is positioned at the 3rd well lidThe top of brace table 31; Bail 72 is positioned on the lateral wall of middle level bearing 2; Bottom bearing 3Madial wall on also offer chute 73; Chute 73 is communicated with draw-in groove 71, for middle level bearing2 installation. Draw-in groove 71 is positioned on the madial wall of middle level bearing 2, and is positioned at the second well lid supportThe top of platform 21; Bail 72 is positioned on the lateral wall of top layer bearing 1; In top layer bearing 1On sidewall, also offer chute 73; Chute 73 is communicated with draw-in groove 71, for top layer bearing 1Install. Draw-in groove between top layer bearing 1 and middle level bearing 2, middle level bearing 2 and bottom bearing 371 and the set-up mode of bail 72 and above-mentioned upper well lid 4 and top layer bearing 1 between draw-in groove71 is identical with the set-up mode of bail 72. Particularly, chute 73 and draw-in groove 71 can be also to connectThe logical L-type groove that forms, multiple L-type grooves are uniformly distributed along the madial wall of bottom bearing 3.
Further, as shown in Figure 2, bottom bearing 3 is stretched base plate 33 in can being provided with, forProp up chapelet well lid 5. Sub-well lid 5 setting position variations, easy for installation. Sub-well lid 5 can be establishedIn the second well lid brace table 21, the 3rd well lid brace table 31 or in stretch on base plate 33, be provided with sonThe support member of well lid 5 is slightly longer than the length of stretching in remaining well lid brace table, so that subThe installation of well lid 5.
Further, middle level bearing 2 can be provided with multiple, and equal between multiple middle levels bearing 2Adopt draw-in groove 71 to be connected with the mode of bail 72. Being provided with multiple middle levels bearing 2 can improveThe height of seat inspection shaft, makes bearing inspection shaft be applicable to three layers and three layers of above bituminous concreteThe road of surface layer.
Particularly, fixture 6 can and be erected on the overhanging end by the reinforcing bar through overhanging base plate 32The reinforcing bar of plate 32 upper surfaces is welded. In traditional handicraft, be all to adopt bolt by bottom bearing 3Overhanging base plate 32 be fixed on ground, but be only applicable to level road, in the embodiment of the present inventionThe fixture 6 arranging is by the reinforcing bar through overhanging base plate 32 and be erected on table on overhanging base plate 32The reinforcing bar of face is welded, and when installation, one end of reinforcing bar is embedded in well bore wall, overhanging base plate 32Be enclosed within the other end of reinforcing bar, and on overhanging base plate 32 surfaces, a reinforcing bar be set, by two reinforcing barsWeld together, play the effect of fixing bottom bearing 3, this fixed form is wanted for groundThe ground that ask low, is applicable to the various gradients.
Particularly, antitheft special shaped screw bolt 41 can pass upper well lid 4, top layer bearing 1 and successivelyMiddle level bearing 2. Antitheft special shaped screw bolt 41 is by upper well lid 4, top layer bearing 1 and middle level bearing 2Link together, make bearing inspection shaft be linked to be an entirety and improved the security performance of examining car well.
In sum, the antitheft abnormity that the multilayer bearing inspection shaft that the embodiment of the present invention provides is provided withBolt 41 has played the effect that prevents that well lid 4 is stolen, adopts the company of bail 72, draw-in groove 71The mode of connecing makes the compactness that is connected between well lid 4 and top layer bearing 1, can prevent well lid 4The loosening well lid causing sends sound while being forced through, and the sub-well lid 5 arranging in bearing inspection shaft canWith prevent from falling after upper well lid 4 fragmentations or upper well lid 4 not time other foreign body fallings in well,Bottom bearing 3 adopts fixture 6 to be fixed to ground can to prevent the movement of bottom bearing 3, toolThere are the multi-ensurings such as antitheft, anti-sound, fall arrest and anti-displacement. When installation, successively install and avoidedThe excavating and repair of lower floor's bituminous concrete, mounting process is simple, bearing inspection shaft road aroundFace good integrity, quality is guaranteed.
Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described, andNon-to its restriction; Although the present invention is had been described in detail with reference to previous embodiment, abilityThe those of ordinary skill in territory is to be understood that: the skill that it still can be recorded aforementioned each embodimentArt scheme is modified, or part technical characterictic is wherein equal to replacement; And these are repaiiedChange or replace, not making the essence of appropriate technical solution depart from various embodiments of the present invention technical sideThe spirit and scope of case.
Claims (9)
1. a multilayer bearing inspection shaft, is characterized in that: comprise bottom bearing, middle level bearing,Top layer bearing, upper well lid and sub-well lid;
On the madial wall of described top layer bearing, middle level bearing and bottom bearing, being provided with well lid props upSupport platform, is respectively the first well lid brace table, the second well lid brace table and the 3rd well lid brace table;
Described the second well lid brace table or the 3rd well lid brace table are used for setting up described sub-well lid;
The first well lid that described upper well lid is fixed on described top layer bearing by antitheft special shaped screw bolt props upSupport platform; The upper part of the madial wall of the lateral wall of described upper well lid and described top layer bearing is passed throughDraw-in groove is connected with bail;
The madial wall of the end portion of the lateral wall of described top layer bearing and described middle level bearing upperEnd part is connected with bail by draw-in groove; The end portion of the lateral wall of described middle level bearing and instituteThe upper part of stating the madial wall of bottom bearing is connected with bail by draw-in groove;
Described bottom bearing is provided with the overhanging base plate with through hole, and described overhanging base plate is by fixingPart is fixed in sub-surface through through hole.
2. multilayer bearing inspection shaft according to claim 1, is characterized in that: described cardNail is positioned on the madial wall of described top layer bearing, and is positioned at the top of described the first well lid brace table;Described draw-in groove is positioned on the lateral wall of described upper well lid; On the lateral wall of described upper well lid, also offerThere is chute; Described chute is communicated with draw-in groove, for the installation of described upper well lid.
3. multilayer bearing inspection shaft according to claim 1, is characterized in that: described cardGroove is positioned on the madial wall of described bottom bearing, and is positioned at the top of described the 3rd well lid brace table;Described bail is positioned on the lateral wall of described middle level bearing; On the madial wall of described bottom bearing, go backOffer chute; Described chute is communicated with draw-in groove, for the installation of described middle level bearing.
4. multilayer bearing inspection shaft according to claim 1, is characterized in that: described cardGroove is positioned on the madial wall of described middle level bearing, and is positioned at the top of described the second well lid brace table;Described bail is positioned on the lateral wall of described top layer bearing; On the madial wall of described top layer bearing, go backOffer chute; Described chute is communicated with draw-in groove, for the installation of described top layer bearing.
5. according to the multilayer bearing inspection shaft described in claim 2,3 or 4 any one, its spyLevy and be: described chute and described draw-in groove are communicated with and form L-type groove, multiple described L-type grooves alongThe madial wall of described bottom bearing is uniformly distributed.
6. multilayer bearing inspection shaft according to claim 1, is characterized in that: the described endIn being provided with, layer bearing stretch base plate, for supporting described sub-well lid.
7. multilayer bearing inspection shaft according to claim 1, is characterized in that: in describedLayer bearing is provided with multiple, and between the bearing of multiple described middle levels, all adopts the mode of draw-in groove and bailConnect.
8. multilayer bearing inspection shaft according to claim 1, is characterized in that: described solidDetermine part by the reinforcing bar through described overhanging base plate and the reinforcing bar that is erected on described overhanging plate upper surfaceBe welded.
9. multilayer bearing inspection shaft according to claim 1, is characterized in that: described anti-Steal special shaped screw bolt successively through described upper well lid, top layer bearing and middle level bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946957.XA CN105586990B (en) | 2015-12-16 | 2015-12-16 | A kind of multilayer bearing inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946957.XA CN105586990B (en) | 2015-12-16 | 2015-12-16 | A kind of multilayer bearing inspection shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105586990A true CN105586990A (en) | 2016-05-18 |
| CN105586990B CN105586990B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510946957.XA Active CN105586990B (en) | 2015-12-16 | 2015-12-16 | A kind of multilayer bearing inspection shaft |
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| CN (1) | CN105586990B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544613A (en) * | 2015-12-16 | 2016-05-04 | 北京路桥瑞通养护中心有限公司 | Inspection well |
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| CN201236346Y (en) * | 2008-08-07 | 2009-05-13 | 句容市科达技术开发有限公司 | Cast iron support with shock-proof device |
| KR101075181B1 (en) * | 2008-11-25 | 2011-10-19 | (주)옥련건설 | Manhole Repairing Structure |
| CN103437378A (en) * | 2013-09-05 | 2013-12-11 | 国家电网公司 | Antitheft cable manhole cover |
| CN104499504A (en) * | 2014-11-25 | 2015-04-08 | 中铁四局集团第三建设有限公司 | Road inspection well and construction method thereof |
| CN104775452A (en) * | 2015-02-13 | 2015-07-15 | 北京市政路桥管理养护集团有限公司 | Well lid support seat of road inspection well, support seat assembly and pavement construction method |
-
2015
- 2015-12-16 CN CN201510946957.XA patent/CN105586990B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201236346Y (en) * | 2008-08-07 | 2009-05-13 | 句容市科达技术开发有限公司 | Cast iron support with shock-proof device |
| KR101075181B1 (en) * | 2008-11-25 | 2011-10-19 | (주)옥련건설 | Manhole Repairing Structure |
| CN103437378A (en) * | 2013-09-05 | 2013-12-11 | 国家电网公司 | Antitheft cable manhole cover |
| CN104499504A (en) * | 2014-11-25 | 2015-04-08 | 中铁四局集团第三建设有限公司 | Road inspection well and construction method thereof |
| CN104775452A (en) * | 2015-02-13 | 2015-07-15 | 北京市政路桥管理养护集团有限公司 | Well lid support seat of road inspection well, support seat assembly and pavement construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544613A (en) * | 2015-12-16 | 2016-05-04 | 北京路桥瑞通养护中心有限公司 | Inspection well |
| CN105544613B (en) * | 2015-12-16 | 2018-05-15 | 北京路桥瑞通养护中心有限公司 | A kind of inspection shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105586990B (en) | 2017-07-28 |
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