CN101220604B - Construction method for building water well with the polypropylene flange well pipe - Google Patents
Construction method for building water well with the polypropylene flange well pipe Download PDFInfo
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- CN101220604B CN101220604B CN2008100329992A CN200810032999A CN101220604B CN 101220604 B CN101220604 B CN 101220604B CN 2008100329992 A CN2008100329992 A CN 2008100329992A CN 200810032999 A CN200810032999 A CN 200810032999A CN 101220604 B CN101220604 B CN 101220604B
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Abstract
The invention relates to a flange type polypropylene well pipe and a method for constructing well in technical field of water conservancy project. The upper end of the flange type polypropylene well pipe is provided with a nut and a flange, and the lower end thereof is provided with a screw thread; a pipe body is arranged between the nut and the screw thread which are completely inosculated with each other; well pipes are in even joint and tightly srewed with each other by the screw threads and the nuts; the pipe wall of a filter well pipe is provided with elliptic water seepage holes. The well pipe adopts a method of suspending an upper well pipe to construct, taking a flange of each well pipe as a constructing node. In the process of installing the well pipes, steel pates are used for clamping the flanges of the well pipes which are sequentially connected with the screw threads and the nuts; then, a hand chain hoist is used for providing pull force to the whole well pipe to move down the whole well pipe and so forth. When a well is discarded as worthless, well pipes can be taken out one by one conveniently and can be recycled and reused, thereby achieving the purpose of saving resource and protecting environment.
Description
Technical field
The present invention relates to the job practices in a hydraulic engineering field, specifically be a kind of polypropylene flange formula well casing and build the job practices of well with it.
Background technology
Irrigation and water conservancy projects is being brought into play crucial effects in China's agricultural production and development, the most crops of China all are grown in to be irritated on the field, therefore, field irrigation then is the lifeblood of China's agricultural production, on the farmland, build a large amount of wells, can improve the integrated production capacity of resisting natural disasters, ensure and protect receipts in increases in grain production and dry season; Equally, in some with serious pollution area, because the increasing the weight of of surface water pollution, select to beat deep well in small and medium-sized cities and rural area and guarantee DRINKING WATER health; In enterprises higher such as some winerys, chemical plant and oil refinerys to water quality requirement, the dark water intake well of can sounding the night watches equally, to guarantee the water intaking quality, that guarantees to produce carries out smoothly, and in the well construction process, the well casing material is taken as concrete more, because concrete well weight is big, intensity is low, in the handling process of concrete well, cause mutual extruding of well casing and collision easily, thereby cause well casing to produce crack even fragmentation; In the work progress, adopt wellhole bottom steel cable suspension method to construct, well casing is upwards stack successively on the well dish, until the degree of depth requirement that reaches the well design, after construction is finished, also steel cable will be extracted from the well casing bottom, and construction is inconvenient, labour intensity is big; In the process that well casing upwards adds up successively along the wellhole sidewall, well casing in borehole bottom has born almost whole gravity of top well casing, therefore, if well casing is off quality or work progress in cause damage, make its intensity not reach requirement, bottom well casing crushed situation will take place so because the huge gravity of top well casing, downward enormous impact power with well casing successively towards broken, form chain reaction, well casing up to top all sinks to the shaft bottom, thus the engineering accident of causing; In the use of well, owing to the intensity of concrete well is low, and does not have connection up and down between well casing and cause overall performance poor, therefore cause the inclination dislocation and the wellhole of part well casing to cave in easily, cause well to scrap, influence its application life.
Find through literature search prior art, number of patent application 02205323.9 proposes reinforced concrete well tube, the patent No. 200520008909.8 prestressed reinforcement well casings, its shortcoming all is that the well casing quality is big, easy damaged, making engineering complexity, cost is higher, and in the use of well, corrosion of steel bar causes concrete cracking, cause well casing intensity to reduce, have a strong impact on the application life of well.Therefore, need firm durable and the well casing of light weight and a simple construction technology.
Summary of the invention
The objective of the invention is at the drawback that exists in existing concrete well casing and its work progress, a kind of polypropylene flange formula well casing is provided and builds the job practices of well with it, make it adopt polypropylene to make the plastics well casing, this kind well casing has light weight, intensity height, advantage such as corrosion-resistant and ageing-resistant, therefore, help the transportation and the carrying of well casing, improve the durability of well; In concrete work progress, be connected with nut with screw thread between the adjacent well casing, and adopt and construct at the suspension method on wellhole top, improve speed of application and construction quality, reduce the construction risk rate, and can carry out recycling to the plastics well casing of disused well, thereby reach twice laid and aim of saving.
The present invention is achieved through the following technical solutions:
Polypropylene flange formula well casing involved in the present invention, its material is a polypropylene, and well casing upper end is provided with the nut and the edge of a wing, and the lower end is provided with screw thread, and nut and screw thread are wanted complete and are coincide, and the centre is a body, docks by screw thread and nut between the well casing to screw.
Described nut is arranged on inside, the edge of a wing.
The outer radius on the described edge of a wing is greater than the well casing outer radius, and is further, greater than well casing outer radius 5cm.
When described well casing was used for impervious layer, the centre was closely knit body.
When described well casing was used for the drainage layer, the well casing tube wall was provided with oval infiltration hole, and the long side direction in oval infiltration hole vertically arranges along well casing, and along well casing even tube wall arranged, and percent opening is more than or equal to 12%.
The present invention adopts polypropylene to make the plastics well casing, and this kind well casing has light weight, intensity height, advantage such as corrosion-resistant and ageing-resistant; Top at waterproof well casing and drainage well casing all is provided with nut, and the bottom is provided with screw thread, and nut and screw thread are wanted complete and coincide; Drainage well casing tube wall is provided with oval infiltration hole, when the well casing tube wall is reserved aperture, well casing is under pulling force or pressure effect, producing stress around the aperture and concentrate, is very disadvantageous to the intensity of well casing, therefore, the long edge well casing in oval infiltration hole is vertically arranged, and along well casing even tube wall arranged, reduce the concentrated influence of aperture stress, guarantee the unimpeded and well casing intensity of current well casing intensity; The place is provided with the edge of a wing in the well casing upper nut, is stress point and construction control points with the well casing edge of a wing, and can strengthen the intensity at place, the well casing edge of a wing, prevents that well casing is in the fracture of place, the edge of a wing under bigger pulling force and pressure effect.
Job practices with polypropylene flange formula well casing construction well involved in the present invention, adopt top well casing suspension method to construct, that is: the edge of a wing with every joint well casing is the construction node, in the well casing installation, the edge of a wing with steel plate blocks well casing is connected by screw thread well casing successively with nut, utilize Chain block to provide pulling force then to whole well casing, whole well casing is moved down, and the like, up to satisfying projected depth.
Further, described employing top well casing suspension method is constructed, be specially: the edge of a wing with each well casing is the construction node, the ledge on the edge of a wing is stuck on the steel plate, screw thread with another well casing docks and screws with nut then, be enclosed within the edge of a wing part of top well casing with stirrup, stirrup is connected with Chain block, applies pulling force with Chain block, whole well casing is suspended in the wellhole, then steel plate is removed relatively, made whole well casing to move down smoothly, draw the cucurbit chain in the other direction, make whole well casing move down, when the edge of a wing of top well casing part the time near steel plate, steel plate closure, the edge of a wing part of the circular hole chucking well casing in the middle of the steel plate, whole well casing body is suspended in the wellhole, next well casing is installed then, and the like, up to the top well casing.
When well is scrapped or can not be used, well casing can be extracted, the method for extracting and that the method for well casing is installed is opposite is enclosed within place, the well casing edge of a wing, top with stirrup earlier, apply pulling force with Chain block, the edge of a wing of next joint well casing of well casing being extracted the next-door neighbour is on steel plate the time, closed steel plate, then, spin off top well casing, according to above-mentioned method, and the like, up to taking out the final section well casing.
Beneficial effect of the present invention: adopt the polypropylene well casing to replace common concrete well, the quality of well casing reduces, and the intensity of well casing improves, owing to be connected with nut by screw thread between the well casing up and down, therefore, the overall performance of whole well casing improves, and in the military service process of well, prevents because the dislocation of part well casing is tilted and wellhole is caved in, cause well to scrap, because the polypropylene well casing is difficult for by corrosion such as salt buck, fluorine water, therefore, well is firm durable; In the transportation of well casing, reduce because the loss that mutual extrusion between the concrete well and collision bring; In work progress, the steel cable bottom well casing suspension method construction with traditional changes the suspension method construction of top well casing into, the constructor constructs on steel plate, construction safety, convenient and swift reduces the construction risk rate, and can reduce labour intensity and labour cost; When motor-pumped well is scrapped, can very easily well casing be extracted one by one, realize the recycling of well casing.Therefore, the present invention is simple in structure, and technology is reasonable, adopts this well casing and construction technology, convenient and quick construction, and well casing can be recycling, realizes economizing on resources and protect the purpose of environment, has great significance to building a conservation-minded society and developing a circular economy.
Description of drawings
Fig. 1 is the elevation of waterproof well casing
Fig. 2 is the elevation of drainage well casing
Fig. 3 is the sectional drawing of A-A direction
Fig. 4 is the sectional drawing of B-B direction
Fig. 5 is the plan view of track and steel plate
Fig. 6 is the sectional drawing of C-C direction
Fig. 7 is the lateral view of portal frame
Wherein, 1 is screw thread, and 2 is nut, and 3 is the edge of a wing, and 4 is oval infiltration hole, and 5 is track, and 6 is small sircle hole, and 7 is steel plate, 8 circular holes, and 9 is portal frame, 10 is Chain block.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Polypropylene flange formula well casing of the present invention can be used for waterproof well casing and drainage well casing, the material of building well casing adopts polypropylene, top at waterproof well casing and drainage well casing all is provided with nut 2, the bottom is provided with screw thread 1, nut 2 and screw thread 1 complete coincideing, each saves well casing all is that screw thread 1 by adjacent well casing is connected with nut 2
Fig. 1 is the elevation of waterproof well casing, and the well casing upper end is provided with the nut 2 and the edge of a wing 3, and the outer radius on the edge of a wing 3 is greater than well casing outer radius 5cm, and the lower end is provided with screw thread 1, and the centre is closely knit body, mainly is the well casing that is used for impervious layer.
Fig. 2 is the elevation of drainage well casing, and the well casing upper end is provided with the nut 2 and the edge of a wing 3, and the outer radius on the edge of a wing 3 is greater than well casing outer radius 5cm, the lower end is provided with screw thread 1, the well casing tube wall is provided with oval infiltration hole 4, and percent opening is not less than 12%, the unimpeded and water withdrawal of assurance current; The long edge well casing in oval infiltration hole 4 is vertically arranged, and along well casing even tube wall arranged, assurance well casing intensity prevents that small gravel from blocking the infiltration hole.
Fig. 3 and Fig. 4 are respectively the sectional drawing of waterproof well casing and drainage well casing, and the well casing pipe thickness is identical as shown in the figure, is 3cm, and nut 2 is placed on 3 inside, the edge of a wing.
The internal diameter of above-mentioned well casing is 40cm to 100cm, and the length of well casing is a kind of of 2m, 4m and 8m.
The present embodiment work progress is as follows:
(1) according to designing requirement, after wellhole has been bored in correct position, the place is smooth around the maintenance wellhole, as shown in Figure 5, with the track 5 parallel wellhole both sides that are placed on, then two and half rectangular steel plates 7 are embedded in the tracks 5, steel plate 7 has big hole 8 and small sircle hole 6 respectively, guarantees that the center of circle of big hole 8 of steel plate 7 and the center of circle of wellhole overlap; As shown in Figure 7, the crossbeam on portal frame 9 tops is passed the wellhole axial line, and the mid point of portal frame 9 upper beam is alignd with the center of circle of wellhole, Chain block 10 is installed in the midpoint of portal frame 9 upper beam, for work progress ready.
Fig. 6 is the sectional view of steel plate and track, on the track 5 draw-in groove is set, and the both ends of steel plate 7 are placed in the draw-in groove, prevents that steel plate 7 from unexpected slippage and inclination taking place under load action.
(2) in the bottom of well casing the well dish is utilized being connected of nut 2 and screw thread 1, keep the well dish of well casing bottom downward, put well casing between the steel plate 7 big hole 8 places, the diameter of big hole 8 is greater than the external diameter 1cm of well casing, closed steel plate 7 of while, this moment, the edge of a wing 3 of well casing was blocked by steel plate 7, then with nut 2 alignment of well casing therewith of screw thread 1 part of another well casing, and the central axis unanimity that keeps two well casings, well casing is screwed, be enclosed within 3 places, the edge of a wing of top well casing with stirrup, connect stirrup so that pulling force to be provided with Chain block 10, make the whole well casing body that connects be suspended in the wellhole, steel plate 7 with the bottom draws back relatively then, the distance of drawing back make the edge of a wing 3 that big hole 8 guarantees well casings smoothly by steel plate 7 for well, oppositely draw the chain of cucurbit 10, make whole well casing move down gradually, when the edge of a wing 3 of top well casing near steel plate the time, closed steel plate 7, steel plate 7 block the edge of a wing 3 of well casing, and with small sircle hole 6 taking-ups of stirrup from steel plate 7, the radius of small sircle hole 6 is 10cm, another well casing is installed, according to above-mentioned method again, and the like, up to the well casing formation well body of installation topmost.At last, steel plate 7, track 5 and portal frame 9 are removed, the sidewall of well casing is carried out filler, finish the work progress of well according to designing requirement.
(3) when well is scrapped, use same facility whole well casing can be extracted, below be concrete work progress: 3 places, the edge of a wing that are enclosed within the top well casing with stirrup, utilize Chain block 10 that well casing integral body is pulled up, the edge of a wing 3 of an adjacent instantly joint well casing just above steel plate 7 in, closed steel plate 7, block the edge of a wing 3 of this well casing, spin off the well casing of a joint then, with the edge of a wing 3 places of small sircle hole 6 colligations of stirrup by steel plate 7 both sides, remove steel plate 7 simultaneously at next joint well casing, the distance of removing make the edge of a wing 3 that circular hole 8 guarantees well casings smoothly by steel plate 7 for well, again well casing integral body is pulled up with Chain block 10 then, the edge of a wing 3 with steel plate blocks well casing then, spins off the well casing on top, with above-mentioned method, and the like, up to taking out the final section well casing, last, with disused well hole landfill, prevent that the disused well hole from engulfing the people, animal etc. and leading to a disaster.
Well casing of the prior art, mainly be concrete well, reinforced concrete well tube, method of attachment between the well casing be mainly the welding or by screwed connection, whole well casing is cylinder, do not have the edge of a wing, its job practices adopts bottom well casing suspension method, working procedure complexity, construction risk rate height, speed of application is slow; When well is scrapped, be difficult to well casing taking-up, recycling.
By the above embodiments as can be seen, the well casing material that present embodiment proposed is a polypropylene, light weight, intensity height; The upper nut place is provided with the edge of a wing, can increase the intensity of screw thread and nut junction; The edge of a wing with well casing is main stress point and construction node in work progress simultaneously, blocks the edge of a wing of well casing with steel plate and locates, and easy construction is located on the edge of a wing that whole well casing is suspended to the top well casing; When well was scrapped, the place was a stress point with the edge of a wing of well casing, can easily well casing be taken out one by one, with the well casing cycling and reutilization, realized economizing on resources and protected the purpose of environment; The oval infiltration of the vertical layout hole of well tubular wall upper edge well casing, the tension and the compressive strength of assurance well casing.
Claims (2)
1. job practices of building well with polypropylene flange formula well casing, it is characterized in that, adopt top well casing suspension method to construct, that is: the edge of a wing with every joint well casing is the construction node, in the well casing installation, the edge of a wing with steel plate blocks well casing is connected by screw thread well casing successively with nut, utilize Chain block to provide pulling force to whole well casing then, whole well casing is moved down, and the like, up to satisfying projected depth, may further comprise the steps:
The first step, after having bored wellhole, the place is smooth around the maintenance wellhole, and parallel track is placed on the wellhole both sides, then two and half rectangular steel plates is embedded in the draw-in groove of track, steel plate has big hole and small sircle hole respectively, the center of circle of big hole of steel plate and the center of circle of wellhole are overlapped, the crossbeam on portal frame top is passed the wellhole axial line, and the mid point of portal frame upper beam is alignd with the center of circle of wellhole, midpoint in the portal frame upper beam is installed Chain block, for work progress is got ready;
Second step, bottom at well casing utilizes being connected of nut and screw thread with the well dish, keep the well dish of well casing bottom downward, put well casing between the steel plate big hole place, the diameter of big hole is greater than the external diameter 1cm of well casing, closed steel plate of while, this moment, the edge of a wing of well casing was blocked by steel plate, then with the nut alignment of well casing therewith of the threaded portion of another well casing, and the central axis unanimity that keeps two well casings, well casing is screwed, be enclosed within the place, the edge of a wing of top well casing with stirrup, connect stirrup so that pulling force to be provided with Chain block, the whole well casing body that connects is suspended in the wellhole, steel plate with the bottom draws back relatively then, the distance of drawing back makes the edge of a wing of big hole assurance well casing pass through steel plate smoothly, oppositely draw the chain of cucurbit, whole well casing is moved down gradually, when the edge of a wing of top well casing the time near steel plate, closed steel plate, steel plate blocks the edge of a wing of well casing, and the small sircle hole of stirrup from steel plate taken out, and the radius of small sircle hole is 10cm, again another well casing is installed, according to above-mentioned method, and the like, up to the well casing formation well body of installation topmost, at last, with steel plate, track and portal frame are removed, and the sidewall of well casing is carried out filler, finish the work progress of well.
2. job practices of building well according to claim 1 with polypropylene flange formula well casing, it is characterized in that, when described well casing takes out, stirrup is enclosed within the place, the edge of a wing of top well casing, with Chain block whole well casing is extracted, blocked the edge of a wing of next joint well casing with steel plate and locate, spin off a joint well casing, and the like, until well casing is all taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100329992A CN101220604B (en) | 2008-01-24 | 2008-01-24 | Construction method for building water well with the polypropylene flange well pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100329992A CN101220604B (en) | 2008-01-24 | 2008-01-24 | Construction method for building water well with the polypropylene flange well pipe |
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| Publication Number | Publication Date |
|---|---|
| CN101220604A CN101220604A (en) | 2008-07-16 |
| CN101220604B true CN101220604B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100329992A Expired - Fee Related CN101220604B (en) | 2008-01-24 | 2008-01-24 | Construction method for building water well with the polypropylene flange well pipe |
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| CN (1) | CN101220604B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083154A (en) * | 1993-04-27 | 1994-03-02 | 天津市水利科学研究所 | Plumber's skill under double-wall corrugated pipe well and the counterweight thereof |
| DE202005002526U1 (en) * | 2005-02-15 | 2005-06-23 | Oppermann, Peter, Dipl.-Ing. | Closure arrangement for fountain, font or well pipe has a head plate with one or more openings in sloping through holes in a fitting that can be used with a press-fit fountain pipe |
| CN2835360Y (en) * | 2005-11-01 | 2006-11-08 | 王鹏毅 | Polyvinyl chloride pipe casing |
-
2008
- 2008-01-24 CN CN2008100329992A patent/CN101220604B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083154A (en) * | 1993-04-27 | 1994-03-02 | 天津市水利科学研究所 | Plumber's skill under double-wall corrugated pipe well and the counterweight thereof |
| DE202005002526U1 (en) * | 2005-02-15 | 2005-06-23 | Oppermann, Peter, Dipl.-Ing. | Closure arrangement for fountain, font or well pipe has a head plate with one or more openings in sloping through holes in a fitting that can be used with a press-fit fountain pipe |
| CN2835360Y (en) * | 2005-11-01 | 2006-11-08 | 王鹏毅 | Polyvinyl chloride pipe casing |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-245379A 2004.09.02 |
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| CN101220604A (en) | 2008-07-16 |
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