CN2923829Y - Man-hole ring-mouth seat and manhole with same - Google Patents
Man-hole ring-mouth seat and manhole with same Download PDFInfo
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- CN2923829Y CN2923829Y CN 200620124090 CN200620124090U CN2923829Y CN 2923829 Y CN2923829 Y CN 2923829Y CN 200620124090 CN200620124090 CN 200620124090 CN 200620124090 U CN200620124090 U CN 200620124090U CN 2923829 Y CN2923829 Y CN 2923829Y
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- manhole
- well wall
- construction member
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Abstract
The utility model relates to an inspection well ring head seat used in the middle of road. An aim of the utility model is to reduce a damage of road surface around the inspection well caused by a uneven surface settlement between well structure and peripheral soil layer. The inspection well ring head seat of the utility model is a ring member with higher rigidity than peripheral soil layer; a radical external outline scale of the ring member is larger than a radical external outline scale of the well wall body; a external part of the lower surface is a lower support surface combined with peripheral soil layer of the well wall body; a medial part of the lower surface is formed by a concave groove, a part of the well wall body embedded in the concave groove can slide along the axis direction of the well wall body in the concave groove. The utility model also relates to the inspection well with the well ring head seat and the construction method.
Description
Technical field
The utility model relates to a kind of manhole circle mouth seat and has the manhole and the construction method thereof of this well circle mouth seat, specifically, the utility model proposes a kind of improvement technical scheme of the well circle mouth seat especially for various wells in the middle of the road.
Background technology
Be in various middle manholes of road and usually be subjected to rolling of vehicular traffic.Yet, common well wall body all is to adopt essentially identical inside and outside footpath with the well circle mouth seat that is arranged on described well wall body upper end, making well body structure and on every side between the soil layer, except frictional force each other, is the stressed system that is independent of each other basically.
From the material that present well body structure is adopted, the well body structure has different rigidity with soil layer on every side.When theory research, often the well body structure is idealized as rigid structures thus, particularly builds the well wall body structure of block for concrete component, its rigidity characteristic is particularly evident, and the rigidity of soil layer is much smaller on every side by contrast, is regarded as flexible structure.
Because well body structure and the stressed and distortion between the soil layer on every side are two relatively independent parts, there is simultaneously the difference on the rigidity again, make well body structure and soil layer on every side certainly lead to the uneven surfaces sedimentation in the time spent of doing that is subjected to such as external force such as vehicle roll.Here it is, and we " well lid " often seen on road sink or projection.Sinking or projection itself or under the effect that vehicle further rolls of this " well lid " can cause the manhole breakage of pavement of road on every side.
For solving the manhole problem of the breakage of pavement of road on every side, Chinese patent literature CN2136274A discloses and has planted anti-sedimentation combination inspection shaft lid.In the prior art, described inspection shaft lid mainly is made up of well lid and base plate, base plate big with the area on well body corresponding surface suitable for reading area more suitable for reading than well body at least, and its maximum Outside Dimensions than well body suitable for reading greatly.Base plate is arranged in the road surface structare layer, and well lid is bearing in the road surface structare layer by base plate.The load that this combination well lid can will act on the well lid is distributed in the road surface structare layer by base plate, rather than directly acts on the well body, thereby can avoid well lid phase road pavement to sink, thereby causes the phenomenon of local pavement cracking.In the prior art, earth when preventing to install in the road surface structare layer etc. falls into the well body, be provided with a retaining pedosphere between base plate and well body top edge mouth, the retaining pedosphere can be a various ways, both can be an independent member. also can make one with base plate.
Yet the inspection shaft lid in the prior art is arranged on base plate in the road surface structare layer, does not consider wherein that obviously " well lid " sink or projection, comes down to be caused by well body structure and the uneven surfaces sedimentation of soil layer on every side.Thereby, do not consider on its structure design and and set up stressed and deformation relationship on every side between the soil layer, retaining pedosphere wherein also only is that earth in the road surface structare layer etc. falls into the well body when being used for preventing to install, and does not have at the well body structure and sets up the structure of a stressed system of integral body on every side between the soil layer.Therefore, this structure can not be avoided sinking of " well lid " or projection effectively, and rolls the lateral displacement of the base plate that causes in the process at vehicle, and and then " well lid " distortion and breakage on road surface on every side of causing.
The utility model content
For this reason, technical problem to be solved in the utility model is, make described manhole circle mouth seat and well body structure and set up effectively stressed and deformation relationship on every side between the soil layer, alleviate because well body structure and the uneven surface sedimentation between the soil layer on every side, and cause the breakage of pavement of road around the manhole; Further, a kind of manhole that has this well circle mouth seat is accordingly proposed, and construct, repair method.
For solving above-mentioned technical problem of the present utility model, manhole circle mouth seat of the present utility model is a rigidity greater than the annular construction member of soil layer on every side; The last placement surface of described annular construction member is used for the installation of walling crib and the laying of ground surface material; The radially outline yardstick of described annular construction member is greater than the radially outline yardstick of described well wall body; The Outboard Sections of the soffit of described annular construction member is the lower support surface that combines with soil layer around the well wall body; The inside part of described soffit forms a recessed groove, the profile of the side wall profile of described groove and the lateral wall of described well wall body is basic identical, and the part that makes described well wall body embed described groove can be slided by the axis direction along well wall body in described groove.
For improving the effect that combines of described annular construction member and soil layer on every side, the lateral pressure that makes full use of soil layer reduces the sedimentation degree of described annular construction member.The outside of described annular construction member lower support surface of the present utility model forms from inboard inclined-plane from bottom to top laterally.
In common embodiment, described ring-like member is a circular ring type.
The bottom surface of described groove is provided with arrangement for adjusting height.Described arrangement for adjusting height comprises the adjusting screw on the bottom surface that is molded over described groove, and is arranged on the height adjustment bolt in the described adjusting screw.Described arrangement for adjusting height is three, and around the 120 ° of layouts in the central axis space of described annular construction member.
The utility model further proposes a kind of manhole with above-mentioned well circle mouth seat, and described manhole comprises:
Well wall body;
A manhole circle mouth seat, described manhole circle mouth seat is arranged on the top of described well wall body; The Outboard Sections of the soffit of described annular construction member is the lower support surface that combines with soil layer around the well wall body;
The inside part of the described soffit of described annular construction member forms a recessed groove, and the upper limb of described well wall body embeds the part of described groove and can slide by the axis direction along well wall body in described groove;
Between the end face of the bottom surface of described groove and described well wall body upper limb, leave the sedimentation gap.
In the described lower support surface of described annular construction member and be provided with between the soil layer on every side by pouring into the setting course of curable slurry curing molding.
Between the end face of the described upper limb of the bottom surface of the described groove of described annular construction member and described well wall body, be provided with a flexible cushion.
Further, between the sidewall of the outer wall of described well wall body and described cartridge type groove, be provided with separation layer.
The utility model also proposes a kind of construction method of above-mentioned manhole, and this method comprises the steps:
A. the building well wall body of wall is as for take the altitude;
B. described well wall body periphery is carried out backfilling of earthwork, and compacting;
C. the roughly the same mounting groove of described annular construction member profile of moulding and manhole circle mouth seat in the soil layer of described well wall body upper limb periphery compacting;
D. described manhole circle mouth seat is inserted in the described mounting groove.
In a kind of embodiment, annular construction member described in the above-mentioned d step is to insert in the described mounting groove by directly building curable mode of building material in described mounting groove; The top that described mode is included in described well wall body is provided with template, described template and described mounting groove together constituted can the described annular construction member of moulding component dies.
In another embodiment, annular construction member described in the above-mentioned d step is integrally to insert in the described mounting groove as in type member; Between the corresponding contoured surface of the downside of described annular construction member and lateral profile face and described mounting groove, pour into curable slurry afterwards, so that make described annular construction member contact with the closely knit of soil layer.
Adopting annular construction member is in the embodiment of an integrated member, before described concrete slurry pours into, comprises the described regulating step of settling levelness and height of going up of regulating described annular construction member; And after described curable slurry is solidified, remove described arrangement for adjusting height, to keep described sedimentation gap.
Described regulating step comprises: between the end face of the described upper limb of the bottom surface of the described groove of described annular construction member and described well wall body at least three arrangement for adjusting height are set.
Described arrangement for adjusting height is pressed 120 ° space layout substantially around the central axis of described annular construction member.
The utility model has also proposed a kind of repair method of above-mentioned manhole, and this method comprises the steps:
A., the supporting role of at least three arrangement for adjusting height is set between the end face of the described upper limb of the bottom surface of described groove and described well wall body;
B. regulate described the going up of described annular construction member and settle levelness and height;
C. between the corresponding contoured surface of the downside of described annular construction member and lateral profile face and described mounting groove, pour into curable slurry, so that make described annular construction member contact with the closely knit of soil layer;
D. after treating that described curable slurry is solidified, the supporting role of removing described arrangement for adjusting height is to keep described sedimentation gap.
Technique scheme of the present utility model has the following advantages compared to existing technology:
---because the radially outline yardstick of described annular construction member is greater than the radially outline yardstick of described well wall body, the pressure that makes described manhole circle mouth seat be born does not act on the well wall body, but act on the manhole soil layer on every side, make well body structure and soil layer on every side form the stressed system of an integral body, particularly form the back taper face in the outside of described annular construction member soffit lower support surface, in the soil layer around the pressure that makes described manhole circle mouth seat be born is used more equably, keep the sedimentation of described manhole circle mouth seat and soil layer on every side to reach unanimity more;
---between the described upper edge portion of described placement surface down and described well wall body the sedimentation gap is set, make under the situation that soil layer obviously sinks around, for described manhole circle mouth seat sinks synchronously or reserved the space from new adjustment after the sedimentation of manhole circle mouth seat with soil layer on every side;
---the setting of separation layer between the sidewall of the outer wall of described well wall body and described cartridge type groove, avoided soil in the soil layer around the well body to enter between the described upper edge portion of described placement surface down and described well wall body and be provided with in the sedimentation gap, prevented to accumulate soil in the sedimentation gap and hinder described manhole circle mouth seat with soil layer synchronization lifting on every side;
---adopt the construction method of described manhole of the present utility model, particularly wherein build step, make described manhole circle mouth seat and set up closely between the soil layer and got in touch to have guaranteed to act on the power on the described annular construction member on every side, be distributed on every side in the soil layer full and uniformly.
---described the going up of adopting arrangement for adjusting height to regulate described annular construction member settled levelness and height, accurately guarantees well lid smooth on the road surface
The above good effect of invention has guaranteed the smooth relation between " well lid " and the road surface, and then reduces the damage on road surface.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the three-dimensional cutaway view of described manhole circle mouth seat first embodiment of the present utility model;
Fig. 2 has inspection embodiment illustrated in fig. 1 schematic sectional drawing also;
Fig. 3 is the three-dimensional cutaway view of described manhole circle mouth seat second embodiment of the present utility model;
Fig. 4 is the schematic sectional drawing with manhole embodiment illustrated in fig. 3.
Fig. 5 shows the three-dimensional cutaway view of arrangement for adjusting height shown in Figure 3;
Fig. 6 a to d is the schematic diagram of building process of a kind of masonry way of manhole of the present utility model;
Fig. 7 a to e is the schematic diagram of building process of the another kind of masonry way of manhole of the present utility model;
The user mode schematic diagram of the arrangement for adjusting height of Fig. 8 wedge shape.
The specific embodiment
Referring to Fig. 1, the manhole circle mouth seat of the utility model first embodiment is a rigidity greater than the square annular construction member 1 of soil layer on every side; The last placement surface 11 of described annular construction member 1 is used for the installation of walling crib 3 and the laying of ground surface material.Described walling crib 3 is fixedly mounted on the last placement surface 11 of described annular construction member 1 by the walling crib fixed component 5 that is arranged on described annular construction member 1 inboard, and the opening of the circle mouth of described walling crib 3 and described annular construction member 1 aligns.The Outboard Sections of the last placement surface 11 of described annular construction member 1 is a ground surface material laying work area 6; The radially outline yardstick of described annular construction member 1 is greater than the radially outline yardstick of the well wall body 7 of described manhole.The Outboard Sections of the soffit of described annular construction member 1 is the lower support surface 12 that combines with soil layer 40 around the well wall body 7, supports described annular construction member 1 by soil layer 40 around the described well wall body 7.The described soffit inboard of described annular construction member 1 forms the cartridge type groove 13 that cooperates with described well wall body 7 upper edge portion, and the part that makes described well wall body 7 embed described groove 13 can be slided by the axis direction along well wall body 7 in described groove 13.
Fig. 2 has shown the manhole superstructure that adopts manhole circle mouth seat shown in Figure 1.Described manhole comprises well wall body 7 and a manhole circle mouth seat that is arranged on described well wall body 7 tops, and described manhole circle mouth seat is a rigidity greater than the square annular construction member 1 of soil layer 40 on every side; The last placement surface 11 of described annular construction member 1 is used for the installation of doubling-up 3 and the laying of ground surface material; The Outboard Sections of the soffit of described annular construction member 1 is the lower support surface 12 that combines with soil layer 40 around the well wall body 7; The upper limb of described well wall body 7 embeds the part of described groove 13 and can slide by the axis direction along well wall body 7 in described groove 13; Between the end face of the bottom surface of described groove 13 and described well wall body 7 upper limbs, leave sedimentation gap 8.Between the described upper edge portion of the described placement surface down of the soffit of described annular construction member 1 and described well wall body 7, be provided with a flexible cushion 9.
Referring to Fig. 3, the manhole circle mouth seat of the utility model second embodiment is a rigidity greater than the annular member 2 of soil layer 40 on every side; The last placement surface 21 of described annular construction member 2 is used for the installation of walling crib 3 and the laying of ground surface material; The radially outline yardstick of described annular construction member 2 is greater than the radially outline yardstick of described well wall body 7; The Outboard Sections of the soffit of described annular construction member 2 is the lower support surface 22 that combines with soil layer 40 around the well wall body 7; The inside part of described soffit forms a recessed cylinder groove 23, the profile of the lateral wall of the side wall profile of described groove 23 and described well wall body 7 is basic identical, and the part that makes described well wall body 7 embed described groove 23 can be slided by the axis direction along well wall body 7 in described groove 23.For improving the effect that combines of described annular construction member 2 and soil layer 40 on every side, the outside lower support surface 22 of described annular construction member 2 soffits of the present utility model forms back taper face 22 '.Angle between the bus of the described back taper face 22 ' of described annular construction member 2 outside moulding and the axis of described annular construction member 2 is 60 °.On the bottom surface of described groove 23, form three adjusting screws 51, in each described adjusting screw 51, a height adjustment bolt 52 is set and constitutes arrangement for adjusting height 50 around the 120 ° of layouts in the central axis space of described annular construction member 2.
Fig. 4 has shown the manhole superstructure that adopts manhole circle mouth seat shown in Figure 3.Described manhole comprises well wall body 7 and a manhole circle mouth seat that is arranged on the top of described well wall body 7, described manhole circle mouth seat is a rigidity greater than the annular construction member 2 of soil layer 40 on every side, and placement surface 21 is used for the installation of walling crib 3 and the laying of ground surface material on it; And the Outboard Sections of soffit is bearing in around the well wall body 7 on the soil layer 40; The inside part of the described soffit of described annular construction member 2 forms a recessed cylinder groove 23, and the upper limb of described well wall body 7 embeds the part of described groove 23 and can slide by the axis direction along well wall body 7 in described groove 23; Between the end face of the bottom surface of described groove 23 and described well wall body 7 upper limbs, leave sedimentation gap 8.
The inside profile yardstick in the footpath of the sidewall of described cartridge type groove 23 is slightly larger than the radially outline yardstick of described well wall body 7; Between the sidewall of the outer wall of described well wall body 7 and described cartridge type groove 23, be provided with separation layer 26.
In Fig. 5, amplify the mounting means under the duty that has shown the described arrangement for adjusting height 50 among Fig. 3 and Fig. 4.
Referring to Fig. 6 a to d, shown a kind of masonry way of manhole of the present utility model.In this masonry way, at first building well wall body of wall 7 as for take the altitude and to described well wall body 7 peripheries carry out backfilling of earthwork, compacting (is seen Fig. 6 a); The roughly the same mounting groove 30 (seeing Fig. 6 b) of described annular construction member 2 profile of moulding and manhole circle mouth seat in the soil layer 40 of described well wall body 7 upper limb peripheries compacting again; Afterwards, on the top of described well wall body 7 template 31 is set, described template 31 and described mounting groove 30 together constituted can the described annular construction member 2 of moulding component dies, specifically, described template 31 comprises the vertical template 311 of bottom tubular with separation layer 26 materials formation that is arranged on the described well wall body 7 upper limbs outside, be arranged on described well wall body 7 end faces, make the middle part ring-shaped flat template 312 that leaves sedimentation gap 8 between the end face of the bottom surface of described groove 23 of the described annular construction member 2 behind the curing molding and described well wall body 7 upper limbs, and with the vertical template 313 of top tubular that is arranged on described well wall body 7 upper limbs top, above-mentioned each template 311,312,313 connected mode is seen Fig. 6 c; Then, together constituted and to have poured into concrete in the component dies of the described annular construction member 2 of moulding with described mounting groove 30 to described template 31; After treating described annular construction member 2 curing moldings, shown in Fig. 6 d, remove vertical template 313 of described top tubular and described middle part ring-shaped flat template 312.Constituted manhole of the present utility model thus.
The masonry way of this manhole, the described manhole circle mouth seat after the moulding combines with soil layer 40 closely, the high conformity of sedimentation; The expenditure that does not have the freight of finished product.But site operation is affected by environment bigger, has certain problem aspect quality assurance.
Referring to Fig. 7 a to d, shown a kind of masonry way of manhole of the present utility model.In this masonry way, at first building well wall body of wall 7 as for take the altitude and to described well wall body 7 peripheries carry out backfilling of earthwork, compacting (is seen Fig. 7 a); The roughly the same mounting groove 30 (seeing Fig. 7 b) of described annular construction member 2 profile of moulding and manhole circle mouth seat in the soil layer 40 of described well wall body 7 upper limb peripheries compacting again; Afterwards, the described annular construction member 2 of moulding is integrally inserted in the described mounting groove 30, and transfer three arrangement for adjusting height 50 that between the end face of the bottom surface of the described groove 23 of described annular construction member 2 and the described upper limb of described well wall body 7, are provided with, regulate the levelness (seeing Fig. 7 c) of placement surface 21 on described annular construction member 2 described; Then, between the corresponding contoured surface of the downside of described annular construction member 2 and lateral profile face and described mounting groove 30, pour into curable slurry,, make the closely knit setting course that contacts 41 (seeing Fig. 7 d) of described annular construction member 2 and soil layer 40 with formation as concrete; After described concrete setting course 41 solidified, the support of removing described arrangement for adjusting height 50 was to keep described sedimentation gap 8 (seeing Fig. 7 e).
The masonry way of this manhole can keep described well circle mouth seat to combine closely the high conformity of sedimentation with soil layer 40 equally; Though freight cost is higher, described manhole circle mouth seat can be processed under the predetermined production environment, produce, and carries out the proportioning of material according to flow process and technological requirement, makes the quality of product be guaranteed.
If inevitable sedimentation appears in manhole, step is rebuild by the following method, and this method comprises:
A., the supporting role of at least three arrangement for adjusting height 50 is set between the end face of the described upper limb of the bottom surface of described groove 13,23 and described well wall body;
B. regulate described the going up of described annular construction member 1,2 and settle 11,21 levelnesss and height;
C. between the corresponding contoured surface of the downside of described annular construction member 1,2 and lateral profile face and described mounting groove, pour into curable slurry,, make the closely knit setting course that contacts 41 of described annular construction member 1,2 and soil layer with formation as concrete;
D. after treating that described concrete setting course 41 solidifies, the supporting role of removing described arrangement for adjusting height 50 is to keep described sedimentation gap 8.
In above embodiment, a desirable mode of described annular construction member 2 of the present utility model is to adopt the steel concrete material.
Should be noted that: in the utility model, the size of the outline yardstick of described annular construction member 1,2 is that intensity and the traffic load according to different soil layers 40 structures designs, for the soft or hard degree of different soil layer 40, the size of the outline yardstick of described annular construction member 1,2 also will have difference.This design then is according to the principle of mechanics and theoretical carrying out, and belongs to the category of common practise.
For the those of ordinary skill of described technical field, some replacement forms can also be arranged, as:
In first embodiment of described well circle mouth seat, the outside of described square annular construction member 1 soffit also can form the supporting surface of the shape of falling the truncated rectangular pyramids.
Described arrangement for adjusting height 50 can adopt wedge 53 as shown in Figure 8.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (10)
1. manhole circle mouth seat is a rigidity greater than the annular construction member of soil layer on every side; The last placement surface of described annular construction member is used for the installation of walling crib and the laying of ground surface material; The radially outline yardstick of described annular construction member is greater than the radially outline yardstick of described well wall body; The Outboard Sections of the soffit of described annular construction member is the lower support surface that combines with soil layer around the well wall body;
It is characterized in that:
The inside part of described soffit forms a recessed groove, the profile of the side wall profile of described groove and the lateral wall of described well wall body is basic identical, and the part that makes described well wall body embed described groove can be slided by the axis direction along well wall body in described groove.
2. manhole circle mouth seat according to claim 1 is characterized in that: the outside of described annular construction member lower support surface forms from inboard inclined-plane from bottom to top laterally.
3. according to any described manhole circle mouth seat in claim 1 or 2, it is characterized in that: described ring-like member is a circular ring type.
4. manhole circle mouth seat according to claim 3 is characterized in that: the bottom surface of described groove is provided with arrangement for adjusting height.
5. manhole circle mouth seat according to claim 3 is characterized in that: described arrangement for adjusting height comprises the adjusting screw on the bottom surface that is molded over described groove, and is arranged on the height adjustment bolt in the described adjusting screw.
6. manhole circle mouth seat according to claim 4 is characterized in that: described arrangement for adjusting height is three, and around the 120 ° of layouts in the central axis space of described annular construction member.
7. manhole with well circle mouth seat that aforesaid right requirement 1 to 6 limited, described manhole comprises:
Well wall body;
A manhole circle mouth seat, described manhole circle mouth seat is arranged on the top of described well wall body; The Outboard Sections of the soffit of described annular construction member is the lower support surface that combines with soil layer around the well wall body;
It is characterized in that:
The inside part of the described soffit of described annular construction member forms a recessed groove, and the upper limb of described well wall body embeds the part of described groove and can slide by the axis direction along well wall body in described groove;
Between the end face of the bottom surface of described groove and described well wall body upper limb, leave the sedimentation gap.
8. the manhole of stating according to claim 7 is characterized in that: in the described lower support surface of described annular construction member and be provided with between the soil layer on every side by pouring into the setting course of curable slurry curing molding.
9. the manhole of stating according to claim 7 is characterized in that: be provided with a flexible cushion between the end face of the described upper limb of the bottom surface of the described groove of described annular construction member and described well wall body.
10. according to the described manhole of one of claim 7 to 9, it is characterized in that: between the sidewall of the outer wall of described well wall body and described cartridge type groove, be provided with separation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124090 CN2923829Y (en) | 2006-07-19 | 2006-07-19 | Man-hole ring-mouth seat and manhole with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124090 CN2923829Y (en) | 2006-07-19 | 2006-07-19 | Man-hole ring-mouth seat and manhole with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2923829Y true CN2923829Y (en) | 2007-07-18 |
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ID=38260258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620124090 Expired - Fee Related CN2923829Y (en) | 2006-07-19 | 2006-07-19 | Man-hole ring-mouth seat and manhole with same |
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| Country | Link |
|---|---|
| CN (1) | CN2923829Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002960A (en) * | 2010-12-03 | 2011-04-06 | 梁林华 | Crib opening seat of inspection well and inspection well with same |
| CN102644295A (en) * | 2012-04-28 | 2012-08-22 | 江苏阳湖建设项目管理有限公司 | Construction method for preventing peripheral and local sedimentation of road surface inspection well |
| CN103806469A (en) * | 2014-01-28 | 2014-05-21 | 北京四方如钢混凝土制品有限公司 | Well mouth ring |
| CN104805867A (en) * | 2015-02-15 | 2015-07-29 | 长兴宏兴实业有限公司 | Communication manhole cover connection structure |
-
2006
- 2006-07-19 CN CN 200620124090 patent/CN2923829Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002960A (en) * | 2010-12-03 | 2011-04-06 | 梁林华 | Crib opening seat of inspection well and inspection well with same |
| CN102002960B (en) * | 2010-12-03 | 2015-11-25 | 梁林华 | Manhole circle mouth seat and there is the manhole of this circle mouth seat |
| CN102644295A (en) * | 2012-04-28 | 2012-08-22 | 江苏阳湖建设项目管理有限公司 | Construction method for preventing peripheral and local sedimentation of road surface inspection well |
| CN103806469A (en) * | 2014-01-28 | 2014-05-21 | 北京四方如钢混凝土制品有限公司 | Well mouth ring |
| CN104805867A (en) * | 2015-02-15 | 2015-07-29 | 长兴宏兴实业有限公司 | Communication manhole cover connection structure |
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