CN104775451A - Rapid disposal method for diseases near road manhole - Google Patents
Rapid disposal method for diseases near road manhole Download PDFInfo
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- CN104775451A CN104775451A CN201410018188.2A CN201410018188A CN104775451A CN 104775451 A CN104775451 A CN 104775451A CN 201410018188 A CN201410018188 A CN 201410018188A CN 104775451 A CN104775451 A CN 104775451A
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Abstract
The invention discloses a rapid disposal method for diseases near a road manhole. The rapid disposal method comprises the following steps: step 1, digging a foundation pit by taking a manhole mouth as a center, and cleaning the foundation pit so as to ensure that the surroundings of the manhole are clean and do not have sundries; step 2, mounting a manhole mouth template for concrete pouring according to the shape of the digged foundation pit; step 3, performing cast-in-place by adopting concrete mortar prepared in advance; and step 4, after concrete setting, dismounting the manhole mouth template, removing laitance on the surface of the concrete, performing surface galling, and then carrying out surface screeding. According to the rapid disposal technology, construction is convenient, the open traffic speed is high, time and traffic benefits are very obvious, and the generated economic benefits are also obvious.
Description
Technical field
The present invention relates to a kind of engineering construction method, relate in particular to a kind of road well week disease rapid disposal method.
Background technology
Manhole is a kind of well columnar structure thing be located in the ground on pipeline, it is the operating space checking pipeline performance situation and dredging, for being connected the special pipelines of different elevation, different gradient, different tube diameters, different directions, it is the requisite urban operating mechanism of underground pipeline project.Manhole on motorway mainly contains feedwater manhole, rainwater inspection well, sewage inspection well, power check well, communication check well etc.Divide by well mouth shapes, manhole is divided into again circular inspection well and rectangle inspection well.At present these manholes overwhelming majority is circular brick manhole, wherein electric power and communication check well in the majority with cover-plate type, rainwater, sewage inspection well are then in the majority with closing in type.
Often there is well lid distortion or sound of making an uproar in the manhole be distributed on roadway, a series of common fault such as well week pavement cracking and depression etc., destroys road structure, cause surface evenness bad after a period of time.And automobile is at a high speed through manhole, can produce the dynamic impact effect of transient state to manhole, aggravate that it is damaged, the depression etc. of manhole simultaneously can have a negative impact to vehicle traveling comfort and safety on it again conversely, even causes traffic accident.And along with the development of manhole periphery road surface breakage, rain, snow-broth etc. infiltrate supercrust along crack, accelerate well week road surface structural damage further, form vicious circle, greatly reduce the application life of road.Therefore, manhole disease problem can not be ignored, and responsible measures need be taked in time to carry out maintenance regulation.
Domestic when disposing all diseases of well at present, lack unified way, fragment of brick adjustment well lid elevation is just adopted simply in a lot of situation, portland cement concrete is adopted to repair to well periphery road surface, in addition construction quality is poor, curing time is not enough, fundamentally can not solve the disease problem of manhole, easily lead man-made further destroy.External aspect, because precast concrete manhole has quick construction, installs the developed countries such as simple, good airproof performance, the advantages such as long service life, Europe, the United States and Japan, and the manhole of more than 90% is all adopt prefabrication, the concrete inspection well of on-site consolidation.Principal mode has precast concrete segment formula, and prefabricated reinforced concrete pin-connected panel, bottom are cast-in-place with top precast assembly combined type etc.Reinforced concrete prefabricated manhole is made batch production, and forms series, become standard product.Coherence check well disease problem obtains effective improvement from source, but there is no special research for manhole disease disposal technology.
Summary of the invention
In view of the problems referred to above that prior art exists, the object of the present invention is to provide the road well week disease rapid disposal method that a kind of simple and short time of constructing can come into operation.
To achieve these goals, all disease rapid disposal methods of a kind of road well provided by the invention, comprise the following steps:
Step one, excavation pit centered by well head also ensures well week clean no-sundries to clearing up in described foundation ditch;
Step 2, installs the well head template of concreting according to the shape of the foundation ditch of step one excavation;
Step 3, the concrete mortar for preparing in advance is adopted to carry out cast in situs, comprising with parts by weight of wherein said concrete mortar: the gathering materials of the cement of 300-500 weight portion, the expansion agent of 30-50 weight portion, 1500-2000 weight portion, the water reducing agent of 8-10 weight portion and the water of 100-200 weight portion;
Step 4, after concrete setting, well head template described in removal, and carry out surface galling after being removed by concrete surface laitance, and then it is floating to carry out surface.
As preferably, also comprise step 5, bitumen layer laid by all concrete of well, and the thickness of described bitumen layer is 5mm-7mm.
As preferably, in described step 2, be also included in the step of installing the keel component formed by steel fibre weaving in described foundation ditch.
As preferably, described keel component comprises the first reinforcing rib and the second reinforcing rib, the end to end formation closure frame of described first reinforcing rib, and multiple described second reinforcing rib is that radiation is fixed on multiple described first reinforcing rib and forms net structure.
As preferably, well head described in step one is circular or rectangle, and the cavity shape of described foundation ditch is funnel shaped stage body.
As preferably, the cavity shape of described foundation ditch is truncated cone-shaped or prismatic table shape.
As preferably, in described step 4, the plucking degree of depth of surface galling operation is 1-3mm.
The all disease rapid disposal methods of road well of the present invention, compared to the typical recovery technique of tradition, cost only increases about 10%.And on long terms, the disease rapid disposal method later stage in road well week of the present invention is functional, the theoretical life-span is more than 2 times of conventional repair techniques, and the application life adopting conventional repair techniques will reach disposal technology of the present invention, then long-term investment need increase by more than 80%.And disposal technology easy construction of the present invention, open to traffic speed is fast, the time and traffic benefits fairly obvious, the economic benefit produced is remarkable equally.
Accompanying drawing explanation
Fig. 1 is the cross section view of the circular inspection well after adopting the disease rapid disposal method process of road well of the present invention week.
Fig. 2 is the structural representation of the keel component adopted in road well of the present invention week disease rapid disposal method.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described in detail.
Fig. 1 is the cross section view of circular inspection well after the disease rapid disposal method process of employing road well week of the present invention, as shown in Figure 1, circular inspection well comprise pedestal 1 and manhole cover base 13 well week, the stage body of the through hole matched with well lid 3 is offered centered by described pedestal 1, it is embedded on the roadbed of the well head periphery of manhole, and described manhole cover base 13 to be arranged on described pedestal 1 and to maintain an equal level with road surface.
For the disposal of all diseases of above-mentioned circular inspection well well, specifically comprise the following steps:
(1) preparation of construction
Should comprehensive preparation of construction be carried out before construction, be familiar with design drawing and relevant document, specify manhole well lid installation requirement; Formulate rational constructure scheme, determine the control point of well lid setting height(from bottom) and foundation of inspecting for acceptance; Receiving inspection is carried out to well lid, bearing bearing capacity, degree of agreement etc., determines whether its quality meets the requirements.
(2) excavation of foundation pit
Centered by the well head of circular inspection well, draw circle, adopt hand to cut sawing and be slit into circle.Excavation is forbidden adopting oil hammer directly to excavate, and marginal portion adopts artificial chisel to remove, and ensures that hole wall is neat, smoother, solid.Forbid road structure around disturbance well, forbid to produce protuberance or crackle.After excavation of foundation pit completes, on-the-spot cleaning should be thorough, and available water is rinsed well around well.The cavity shape of foundation ditch can be set to funnel shaped stage body usually, and the pedestal 1 that concrete casting can be made thus to form has the characteristic of good stress dispersion.Preferably, the cavity shape of described foundation ditch is truncated cone-shaped or prismatic table shape.In the present embodiment, the cavity of described excavation of foundation pit is truncated cone-shaped, with this through cast after pedestal 1 also for truncated cone-shaped, such structure can make the stress dispersion in well week preferably, reduces the pressure to pit shaft 2.
(3) internal mold is installed
Make firmly, the well head template that closes up of the circle that is suitable for or taper, template should be convenient to installation and removal, ensure well head size and concrete surface smooth, bright and clean.Then by well head model sheetinstallat to foundation ditch.In this step, the keel component formed by steel fibre weaving optionally can also be installed in described foundation ditch.As shown in Figure 2, preferably, described keel component 11 comprises the first reinforcing rib 112 and the second reinforcing rib 111, the end to end formation closure frame of described first reinforcing rib 112, and multiple described second reinforcing rib 111 is fixed on multiple described first reinforcing rib 112 in radiation and forms net structure.Keel component 11 has enhancing and toughness reinforcing effect to described pedestal 1 along each direction, especially strengthen very effective to complex stress district, the Physical And Mechanical Properties of Concrete of pedestal can be made to produce the change of matter, greatly improve crack-resistant performance of concrete and shock resistance and excellent freeze proof, anti-wear performance, make the concrete material of fragility originally present very high ductility and toughness.
(4) concrete survives (surface, inside)
The concrete mortar for preparing in advance is adopted to carry out cast in situs, comprising with parts by weight of wherein said concrete mortar: the gathering materials of the cement of 300-500 weight portion, the expansion agent of 30-50 weight portion, 1500-2000 weight portion, the water reducing agent of 8-10 weight portion and the water of 100-200 weight portion.It is real that concreting requires to smear densification, after concrete final set, concrete surface laitance should be removed and plucking (or manually picking hair, degree of depth 2mm), bearing, around road surface be cleaned out simultaneously.Walling crib and brick part should be wiped one's face for maintenance overhaul well after removing by internal mold in time.In this step, expansion agent wherein and water reducing agent are commercially available conventional products.But as preferably, gather materials wherein and comprise fine aggregate and coarse aggregate, and the weight ratio of described fine aggregate and described coarse aggregate is 1:1 ~ 1:1.5.When fine aggregate is selected, demand fulfillment particle diameter is less than 4.75mm, and when coarse aggregate is selected, particle diameter then needs to be greater than 4.75mm, and preferably, described fine aggregate is river sand or extra large sand, and described coarse aggregate is rubble or cobble.And the main component cement formed in the concrete composite material of pedestal 1, in the present invention, preferably described cement is aluminum sulfate salt cement.
(5) Construction of Asphalt Pavement
Before spreading scratch coat coal tar, well lid should be covered tight, preventing pollution; The all concrete of well spray adhesion coating and combines oil.Before asphalt paving, a small amount of diesel oil can be brushed at well lid, avoid pitch to be bonded on well lid.Surface evenness requires: adopt Manual to be not more than 7mm, adopts machine spreading to be not more than 5mm.
Concrete mortar proportioning is adopted to adjust in aforementioned range according to actual needs in all disease rapid disposal methods of road well of the present invention, a concrete composition and performance parameter contrast thereof is listed, to the beneficial effect of the anti-depression structure of all composite materials of well of the present invention is better described particularly:
Table 1, composite material proportioning test list
Note: unit is kg.
According to concrete proportioning test result (table 1) display that " Qingdao road and bridge concrete Co., Ltd " provides, finally take match ratio " g ", its concrete test block axial compressive strength can reach 23.2Mpa after 3 hours, 33.7Mpa can be reached after 4 hours, get final product open to traffic in a short time or carry out pavement spread and roll, Saving in time costs is obvious.
In addition, every material index that all composite material anti-depression structures of well of the present invention and current domestic manhole build conventional clay brick masonry and cast-in-place C30 ordinary concrete by laying bricks or stones is carried out lateral comparison, and comprehensive list is as follows:
The all material index comparison sheets of table 1, manhole well
Note: unit is MPa.
The anti-depression structure made by more visible well of the present invention week composite material has been had compared to the conventional material of traditional handicraft and has increased substantially.
Certainly, the above is the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. all disease rapid disposal methods of road well, comprise the following steps:
Step one, excavation pit centered by well head also ensures well week clean no-sundries to clearing up in described foundation ditch;
Step 2, installs the well head template of concreting according to the shape of the foundation ditch of step one excavation;
Step 3, the concrete mortar for preparing in advance is adopted to carry out cast in situs, comprising with parts by weight of wherein said concrete mortar: the gathering materials of the cement of 300-500 weight portion, the expansion agent of 30-50 weight portion, 1500-2000 weight portion, the water reducing agent of 8-10 weight portion and the water of 100-200 weight portion;
Step 4, after concrete setting, well head template described in removal, and carry out surface galling after being removed by concrete surface laitance, and then it is floating to carry out surface.
2. all disease rapid disposal methods of road well as claimed in claim 1, also comprise step 5, and bitumen layer laid by all concrete of well, and the thickness of described bitumen layer is 5mm-7mm.
3. all disease rapid disposal methods of road well as claimed in claim 1, are also included in the step of installing the keel component formed by steel fibre weaving in described foundation ditch in described step 2.
4. all disease rapid disposal methods of road well as claimed in claim 3, described keel component comprises the first reinforcing rib and the second reinforcing rib, the end to end formation closure frame of described first reinforcing rib, multiple described second reinforcing rib is that radiation is fixed on multiple described first reinforcing rib and forms net structure.
5. all disease rapid disposal methods of road well as claimed in claim 1, well head described in step one is circular or rectangle, and the cavity shape of described foundation ditch is funnel shaped stage body.
6. all disease rapid disposal methods of road well as claimed in claim 5, the cavity shape of described foundation ditch is truncated cone-shaped or prismatic table shape.
7. all disease rapid disposal methods of road well as claimed in claim 1, gather materials and comprise fine aggregate and coarse aggregate, and the weight ratio of described fine aggregate and described coarse aggregate are 1:1 ~ 1:1.5 described in the described concrete mortars in described step 3.
8. all disease rapid disposal methods of road well as claimed in claim 7, described fine aggregate is river sand or extra large sand, and described coarse aggregate is rubble or cobble.
9. all disease rapid disposal methods of road well as claimed in claim 1, the described cement in the described concrete mortar in described step 3 is aluminum sulfate salt cement.
10. all disease rapid disposal methods of road well as claimed in claim 1, in described step 4, the plucking degree of depth of surface galling operation is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018188.2A CN104775451A (en) | 2014-01-15 | 2014-01-15 | Rapid disposal method for diseases near road manhole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410018188.2A CN104775451A (en) | 2014-01-15 | 2014-01-15 | Rapid disposal method for diseases near road manhole |
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| CN104775451A true CN104775451A (en) | 2015-07-15 |
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| CN201410018188.2A Pending CN104775451A (en) | 2014-01-15 | 2014-01-15 | Rapid disposal method for diseases near road manhole |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638696A (en) * | 2016-11-01 | 2017-05-10 | 济南汇通联合市政工程有限责任公司 | Installation and construction method for anti-settling manhole cover |
| CN111827358A (en) * | 2020-07-27 | 2020-10-27 | 福建兴港建工有限公司 | Protective structure of water collecting well and construction method thereof |
| CN113323021A (en) * | 2021-04-22 | 2021-08-31 | 中电(山东)电力科技有限公司 | Cover plate formwork structure and cover plate manufacturing method |
| CN114059591A (en) * | 2021-08-31 | 2022-02-18 | 上海二十冶建设有限公司 | Repairing and resetting method of road well cover |
| CN115233756A (en) * | 2022-08-25 | 2022-10-25 | 中国建筑第八工程局有限公司 | Cast-in-place pile defect treatment construction method |
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| CN1876972A (en) * | 2006-07-19 | 2006-12-13 | 梁彬 | Inspection well mouth seat and inspection well with the same and construction, repair method thereof |
| JP2009281083A (en) * | 2008-05-23 | 2009-12-03 | Nippon Chutetsukan Kk | Iron lid for underground structure |
| CN201614601U (en) * | 2010-02-26 | 2010-10-27 | 繁昌县金科铸造有限责任公司 | Well lid structure |
| CN101993229A (en) * | 2009-08-11 | 2011-03-30 | 刘季林 | Ultrahigh strength polymer mortar |
| CN103114607A (en) * | 2013-03-04 | 2013-05-22 | 济南城建集团有限公司 | Anti-settling manhole cover and construction method thereof |
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2014
- 2014-01-15 CN CN201410018188.2A patent/CN104775451A/en active Pending
Patent Citations (5)
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| CN1876972A (en) * | 2006-07-19 | 2006-12-13 | 梁彬 | Inspection well mouth seat and inspection well with the same and construction, repair method thereof |
| JP2009281083A (en) * | 2008-05-23 | 2009-12-03 | Nippon Chutetsukan Kk | Iron lid for underground structure |
| CN101993229A (en) * | 2009-08-11 | 2011-03-30 | 刘季林 | Ultrahigh strength polymer mortar |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638696A (en) * | 2016-11-01 | 2017-05-10 | 济南汇通联合市政工程有限责任公司 | Installation and construction method for anti-settling manhole cover |
| CN106638696B (en) * | 2016-11-01 | 2018-09-11 | 山东汇通建设集团有限公司 | The construction method of installation of anti-settling manhole cover |
| CN111827358A (en) * | 2020-07-27 | 2020-10-27 | 福建兴港建工有限公司 | Protective structure of water collecting well and construction method thereof |
| CN111827358B (en) * | 2020-07-27 | 2021-08-31 | 福建兴港建工有限公司 | Protective structure of water collecting well and construction method thereof |
| CN113323021A (en) * | 2021-04-22 | 2021-08-31 | 中电(山东)电力科技有限公司 | Cover plate formwork structure and cover plate manufacturing method |
| CN114059591A (en) * | 2021-08-31 | 2022-02-18 | 上海二十冶建设有限公司 | Repairing and resetting method of road well cover |
| CN115233756A (en) * | 2022-08-25 | 2022-10-25 | 中国建筑第八工程局有限公司 | Cast-in-place pile defect treatment construction method |
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Application publication date: 20150715 |
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