CN104975623A - Non-excavation leaking inspection well repairing method and repairing structure - Google Patents
Non-excavation leaking inspection well repairing method and repairing structure Download PDFInfo
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- CN104975623A CN104975623A CN201510424399.0A CN201510424399A CN104975623A CN 104975623 A CN104975623 A CN 104975623A CN 201510424399 A CN201510424399 A CN 201510424399A CN 104975623 A CN104975623 A CN 104975623A
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Abstract
The invention relates to a non-excavation leaking inspection well repairing method and a repairing structure and belongs to the technical field of transformation of urban public pipeline facilities. The method comprises the steps that firstly, water accumulated in an inspection well is completely discharged, and a water leakage point is checked out; the water leakage point is blocked by means of a rapid-hardening anti-leakage concrete leaking stoppage agent on the inner wall of the inspection well; wet maintenance is conducted; primary single-layer shale brick walls are constructed on the inner wall and a base plate of the inspection well, brick wall seams are filled with waterproof mortar, and troweling is conducted on the inner side by means of waterproof mortar; after the strength meets the requirement, an SBS elastomer modified asphalt waterproof sheet material layer is integrally constructed on the inner side of the inspection well; a protective layer is constructed outside the waterproof sheet material layer again by means of shale bricks; and finally, the interior of the inspection well is flattened by means of waterproof mortar. The repairing structure comprises a leaking stoppage agent layer, the primary shale brick lining walls, the waterproof sheet material layer, last shale brick lining walls and a waterproof mortar layer which are added to the original inspection well. By the adoption of the non-excavation leaking inspection well repairing method and the repairing structure, the structural strength of a well chamber can be improved, maintenance cost can be reduced, and the problem of leakage of the inspection well can be solved.
Description
Technical field
The invention belongs to city common conduit transformation of facility technical field, particularly the lysimetric test well restorative procedure of no-dig technique mode and repair structure.
Background technology
Along with in recent years, urban waterlogging phenomenon constantly occurred., often there is rain backing up of sewage in city common conduit facility, the especially manhole such as natural gas, electric wire, after waterproof is destroyed, underground water gushes; The long-term ponding of manhole, pipeline material is by long period of soaking, and manhole internal water accumulation such as cannot to be drained for a long time at the phenomenon.Therefore, how fast, efficiently, economic solution manhole leakage problems becomes operation of engineering projects maintaining field urgent problem.The structure of current routine inspection well, as shown in Figure 1, by the manhole room be made up of roof support with reinforced concrete 4, shale brick exterior wall 5, rigid waterproof layer 6, reinforced concrete floor 7, foot iron 8 of excavating under the shale brick well head 1 (thick 240mm), well head of flexible pavement 2 times excavations, the wellhead assembly compositions such as the well lid that well head is installed.The well head of manhole and well outdoor week backfill 3 tamp reinforcing.Often occur the problem such as seepage, ponding in manhole use procedure, analytical review well leakage cause has several respects:
(1) in former work progress, the construction technologies such as manhole shale brick well head 1, roof support with reinforced concrete 4, shale brick exterior wall 5, reinforced concrete floor 7 are not up to standard; In concrete placement, be mixed into other impurity or concrete strength does not meet designing requirement; Cement, sand, stone match ratio are lack of standardization etc. causes sidewall large area percolating water; Rigid waterproofing 6 anti-seepage effect does not accomplish the end in view.
(2) when former construction, deal with improperly or in use sedimentation too much; Built-in fitting and the threading pipe fitting turnover all kinds of mouth of pipe of manhole or threading opening, poorly sealed or destroyed in using.
(3) artificial destruction in use, sand holes, local perforations, rain sewage blows back into manhole, causes manhole sidewall and diapire infiltration.
Current domestic manhole reparation adopts local to patch up substantially or outside excavation is heavily built, and repairing effect is not satisfactory.Indivedual manhole adopts slip casting, again does waterproof, as run into long-term immersion or often by dry wet environment alternately, or season the dynamic operation condition such as crackle, be easy to again occur seepage, sealing effectiveness can not be kept for a long time.Seepage, reparation are wasted time and energy repeatedly, can not thoroughly deal with problems.
Summary of the invention
The present invention repairs Problems existing for overcoming prior art to lysimetric test well, a kind of lysimetric test well restorative procedure and repair structure of no-dig technique mode are proposed, the present invention, by rationally processing the interior waterproof of existing manhole, solves manhole leakage problems; Save land area, save construction cost, improve manhole seepage repair ability.
The lysimetric test well restorative procedure of a kind of no-dig technique mode that the present invention proposes, it is characterized in that, the method comprises the following steps:
1) after seepage appears in routine inspection well, first by the ponding emptying in manhole, the place leaked is checked out;
2) adopt rapid hardening water-tight concrete sealing agent to make leak stopping layer at manhole inwall leakage point is blocked;
3) wet curing in 48 hours is carried out;
4) on manhole inwall and base plate, build first floor individual layer shale brick interior wall by laying bricks or stones, brick wall gap waterproofing mortar is filled, and inner side waterproofing mortar is plastered;
5) after intensity meets the demands, the construction of integral manufacturing SBS elastomer modified asphalt waterproof roll layer inside manhole;
6) again last layer shale brick inwall is done with shale brick outward at waterproof roll layer;
7) finally waterproof mortar course is made for waterproofing mortar by floating for manhole chamber interior.
The present invention also proposes a kind of manhole repair structure adopting said method, it is characterized in that, the manhole room be made up of roof support with reinforced concrete, shale brick exterior wall, rigid waterproof layer, reinforced concrete floor, foot iron of excavating under comprising shale brick well head, well head, also comprise: the leak stopping oxidant layer of smearing formation outside the rigid waterproof layer outside the outer inner wall of well room shale brick, first floor individual layer shale brick interior wall, waterproof roll floor and the last layer shale brick inwall of building by laying bricks or stones successively in well chamber interior walls, well chamber interior walls and base plate are smeared the waterproof mortar course made.
Feature of the present invention and beneficial effect:
The present invention adopts lysimetric test well no-dig technique internal repair technology, solves the daily difficult problems such as old manhole is long neglected and in disrepair, ground water seepage; By rationally processing the interior waterproof of existing manhole, effectively can solve the inwall seepage of manhole, isostructuralism of breaking defect, strengthen the structural strength of well room, reduce maintenance cost, one-off construction, solves manhole leakage problems; Save land area, save construction cost, improve manhole seepage repair ability, avoid and cause domestic crucial seriously corroded because manhole leaks, again build the difficult problem that manhole position cannot be designed, construction cost increases by laying bricks or stones.
Accompanying drawing explanation
Fig. 1 is routine inspection well construction schematic diagram;
Fig. 2 is manhole repair structure schematic diagram of the present invention.
Wherein:
1-shale brick well head, 2-flexible pavement, 3-backfill, 4-roof support with reinforced concrete, 5-shale brick exterior wall, 6-rigid waterproof layer, 7-reinforced concrete floor, 8-foot iron, 9-leak stopping spirit layer, 10-first floor shale brick inwall, 11-waterproof roll layer, 12-last layer shale brick inwall, 13-waterproof mortar course.
Detailed description of the invention
Below in conjunction with the description of drawings and Examples to no-dig technique mode recovery technique of the present invention, further illustrate the advantage of lysimetric test well no-dig technique internal repair technology.
The lysimetric test well restorative procedure of a kind of no-dig technique mode that the present invention proposes, as shown in Figure 2, comprises the following steps:
1) after seepage appears in routine inspection well, first by the ponding emptying in manhole, the place (need not excavate manhole) leaked is checked out;
2) adopt a kind of rapid hardening water-tight concrete sealing agent (name of product: fast blockage king, GRT-TL007) 9 to make leak stopping layer at manhole inwall leakage point is blocked; Specific construction: borehole wall basal plane is dried first floor sealing agent material on rear rapid trowel (wouldn't use pipe if any infiltration) layer with dry cloth; Surface is dried, the upper second layer sealing agent bed of material Deng (finger pressure is trace not) after its sclerosis; If also have larger area infiltration, then with the third layer sealing agent bed of material on same method, if just local infiltration, only need add the third layer sealing agent bed of material in rises, until do not leak;
3) wet curing in 48 hours is carried out after;
4) (do waterproof roll at manhole inwall long neglected and in disrepair be difficult to carry out due to direct, so after the maintenance of rapid hardening water-tight concrete sealing agent 9 completes,) on manhole inwall and base plate, build first floor individual layer shale brick interior wall 10 (thick 120mm) by laying bricks or stones, brick wall gap waterproofing mortar is filled, and inner side waterproofing mortar is plastered;
5) after intensity meets the demands, the construction of integral manufacturing SBS elastomer modified asphalt waterproof roll layer (adopting model to be KSF-SBS waterproof roll) 11 inside manhole.Specific practice: first at basic unit's first even brushing petroleum series base treatment agent (adhesive bitument primer) one deck.After base treatment agent drying, can brushing adhesive stick (chloroprene rubber adhesive agent or SBS adhesive), should once brush evenly.During paving, in length and breadth to the overlapping the slot that all should reserve 10cm, stick with glue agent sticky flat, with roller compaction after dry several minutes, waterproof roll layer thickness is 3mm;
6) in order to avoid waterproof roll 11 is destroyed again, outside waterproof roll layer 11, again do one inwall (thickness: 120mm) with shale brick make topping, this last layer shale brick inwall 12 (thickness: 120mm);
7) finally waterproof mortar course is made for waterproofing mortar 13 by floating for manhole chamber interior.The oozing of manhole, seepy question are so fundamentally administered.
The manhole structure that the present invention adopts said method to repair, as shown in Figure 2, comprise shale brick well head 1, excavate under well head by roof support with reinforced concrete 4, shale brick exterior wall 5, rigid waterproof layer 6, reinforced concrete floor 7, the manhole room that foot iron 8 forms, namely on the architecture basics of above-mentioned original manhole, also comprise: the leak stopping oxidant layer 9 of smearing formation outside the rigid waterproof layer 6 outside shale brick exterior wall 5 inwall of well room, at the first floor individual layer shale brick interior wall 10 that well chamber interior walls is built by laying bricks or stones successively, waterproof roll layer 11 and last layer shale brick inwall 12, well chamber interior walls and base plate are smeared the waterproof mortar course made.
The present embodiment newly increases each layer thickness: rapid hardening water-tight concrete leak stopping oxidant layer 9 thickness: 1
~the thickness of 3mm, first floor shale brick inwall 10: the thickness of the thickness of 120mm, SBS elastomer modified asphalt waterproof roll layer 11: 3mm, last layer shale brick inwall 12: the thickness of 120mm, waterproof mortar course 13: 20mm.
The present invention adopts the lysimetric test well restorative procedure of no-dig technique mode and the repair structure of formation, effectively can solve the inwall seepage of manhole, isostructuralism of breaking defect, strengthen the structural strength of well room, reduce maintenance cost, one-off construction, ensure that leakage problems is eradicated comprehensively, employing lysimetric test well no-dig technique internal repair technology is the optimal selection of manhole non-excavation rehabilitation.
The leak stopping spirit adhesion stress adopted is strong, quick setting and rapid hardening, instantaneously sealing, early strengthening and high strengthening, impervious cracking resistance; Can be with water construction, fast blockage, upstream face back side all can be constructed;
The present invention solves manhole reparation, reinforcing problem while solving manhole waterproof, leakage problems.All process steps is once constructed and can be completed.Construction technology is simple and convenient, and efficiency is high, does not need complicated pretreatment, avoids abolishment manhole, again the operation of trenchless rehabilitation or newly-increased manhole.
This kind of technology can be generalized to the similar engineerings such as cable shaft, reservoir, swimming pool, elevator foundation pit.
Although disclose example of the present invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: without departing from the spirit and scope of the invention and the appended claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (5)
1. a lysimetric test well restorative procedure for no-dig technique mode, it is characterized in that, the method comprises the following steps:
1) after seepage appears in routine inspection well, first by the ponding emptying in manhole, the place leaked is checked out;
2) adopt rapid hardening water-tight concrete sealing agent to make leak stopping layer at manhole inwall leakage point is blocked;
3) wet curing in 48 hours is carried out;
4) on manhole inwall and base plate, build first floor individual layer shale brick interior wall by laying bricks or stones, brick wall gap waterproofing mortar is filled, and inner side waterproofing mortar is plastered;
5) after intensity meets the demands, the construction of integral manufacturing SBS elastomer modified asphalt waterproof roll layer inside manhole;
6) again last layer shale brick inwall is done with shale brick outward at waterproof roll layer;
7) finally waterproof mortar course is made for waterproofing mortar by floating for manhole chamber interior.
2. method as claimed in claim 1, is characterized in that, described step 2) Specific construction is: with dry cloth, borehole wall basal plane dried rear trowel and makes the first floor sealing agent bed of material; Dry surface Deng after its sclerosis, make the second layer sealing agent bed of material; If also have large area infiltration, the upper third layer sealing agent bed of material, if just local infiltration, only the third layer sealing agent bed of material need be added in rises, until do not leak.
3. method as claimed in claim 1, is characterized in that, described step 5) specific practice: first at basic unit's first even brushing petroleum series base treatment agent one deck; After base treatment agent drying, an evenly brushing bonding adhesive, during paving, in length and breadth to the overlapping the slot all reserved, sticks with glue agent sticky flat, uses roller compaction after dry several minutes.
4. one kind adopts the manhole repair structure of method as claimed in claim 1, it is characterized in that, the manhole room be made up of roof support with reinforced concrete, shale brick exterior wall, rigid waterproof layer, reinforced concrete floor, foot iron of excavating under comprising shale brick well head, well head, also comprise: the leak stopping oxidant layer of smearing formation outside the rigid waterproof layer outside the outer inner wall of well room shale brick, first floor individual layer shale brick interior wall, waterproof roll floor and the last layer shale brick inwall of building by laying bricks or stones successively in well chamber interior walls, well chamber interior walls and base plate are smeared the waterproof mortar course made.
5. manhole structure as claimed in claim 4, it is characterized in that, described rapid hardening water-tight concrete sealing agent layer thickness is 1 ~ 3mm, thickness that the thickness of first floor shale brick inwall is 120mm, SBS elastomer modified asphalt waterproof roll layer is 3mm, the thickness of last layer shale brick inwall is 120mm, the thickness of waterproof mortar course is 20mm.
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| CN201510424399.0A CN104975623A (en) | 2015-07-17 | 2015-07-17 | Non-excavation leaking inspection well repairing method and repairing structure |
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| CN201510424399.0A CN104975623A (en) | 2015-07-17 | 2015-07-17 | Non-excavation leaking inspection well repairing method and repairing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012891A (en) * | 2017-06-09 | 2017-08-04 | 西安市恒兴市政工程公司 | A kind of waterproof method of prefabricated rectangle well room |
| CN112431989A (en) * | 2020-10-23 | 2021-03-02 | 浙江迅犀建设有限责任公司 | Method for quickly repairing leakage of pipe orifice of PE (polyethylene) solid-wall drain pipe |
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| JP2920806B2 (en) * | 1993-01-20 | 1999-07-19 | 東急建設株式会社 | Water leakage repair method for reinforced concrete structures |
| CN101914927A (en) * | 2010-06-22 | 2010-12-15 | 中国建筑第二工程局有限公司 | Waterproof system for basement bottom board and wall surface and construction method thereof |
| CN202148539U (en) * | 2011-07-22 | 2012-02-22 | 上海建科结构新技术工程有限公司 | Composite waterproof structure using underground engineering waterproof leaking stoppage treatment and construction method |
| CN202945619U (en) * | 2012-11-26 | 2013-05-22 | 新宇建设有限公司 | Basement wall and baseplate waterproof and drainage structure |
| CN104452813A (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Method for protecting underground powerhouse gate shaft against water seepage |
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2015
- 2015-07-17 CN CN201510424399.0A patent/CN104975623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2920806B2 (en) * | 1993-01-20 | 1999-07-19 | 東急建設株式会社 | Water leakage repair method for reinforced concrete structures |
| CN101914927A (en) * | 2010-06-22 | 2010-12-15 | 中国建筑第二工程局有限公司 | Waterproof system for basement bottom board and wall surface and construction method thereof |
| CN202148539U (en) * | 2011-07-22 | 2012-02-22 | 上海建科结构新技术工程有限公司 | Composite waterproof structure using underground engineering waterproof leaking stoppage treatment and construction method |
| CN202945619U (en) * | 2012-11-26 | 2013-05-22 | 新宇建设有限公司 | Basement wall and baseplate waterproof and drainage structure |
| CN104452813A (en) * | 2014-11-06 | 2015-03-25 | 国家电网公司 | Method for protecting underground powerhouse gate shaft against water seepage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012891A (en) * | 2017-06-09 | 2017-08-04 | 西安市恒兴市政工程公司 | A kind of waterproof method of prefabricated rectangle well room |
| CN112431989A (en) * | 2020-10-23 | 2021-03-02 | 浙江迅犀建设有限责任公司 | Method for quickly repairing leakage of pipe orifice of PE (polyethylene) solid-wall drain pipe |
| CN112431989B (en) * | 2020-10-23 | 2022-06-14 | 台州市金鼎建设工程有限公司 | Method for quickly repairing leakage of pipe orifice of PE (polyethylene) solid-wall drain pipe |
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Application publication date: 20151014 |