CN103939669A - Anti-seepage underground pipeline structure in soft soil matrix and construction technology of anti-seepage underground pipeline structure - Google Patents
Anti-seepage underground pipeline structure in soft soil matrix and construction technology of anti-seepage underground pipeline structure Download PDFInfo
- Publication number
- CN103939669A CN103939669A CN201410170192.0A CN201410170192A CN103939669A CN 103939669 A CN103939669 A CN 103939669A CN 201410170192 A CN201410170192 A CN 201410170192A CN 103939669 A CN103939669 A CN 103939669A
- Authority
- CN
- China
- Prior art keywords
- hdpe
- pipe
- hdpe pipe
- pipeline
- transition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
- F16L41/12—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe using attaching means embracing the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
Abstract
The invention provides an anti-seepage underground pipeline structure in a soft soil matrix and a construction technology of the anti-seepage underground pipeline structure and belongs to the technical field of building construction. The pipeline structure comprises an inspection well and an HDPE pipeline. A connecting hole is formed in the well wall of the inspection well. An installation lantern ring is tightly arranged on the connecting hole. The HDPE pipeline is inserted into the installation lantern ring. A sealing ring is arranged between the HDPE pipeline and the installation lantern ring. The pipeline structure is applied to the soft soil matrix, so that the requirement that the connection portion is free of seepage is satisfied and inspection shows that the percent of pass reaches 95%. Tiny seepage phenomena still exist in a large number of deep quicksand wells and on the connection portions of local well sections. After the structure is improved, seepage is completely avoided, refilling construction is strictly controlled, the phenomena of damage, deformation and the like of a pipe and a connector of the pipe are avoided, and the density degree of refilling reaches more than 95% of the degree required by design. Compared with a common concrete bearing and inserting water discharging pipe, the construction period is shortened by a half, service life is prolonged by more than one time, and economic benefits are greatly improved.
Description
Technical field
The invention belongs to technical field of building construction, be specifically related to a kind of simple in structure, pipe fitting is combined with the borehole wall well, prevent leakage proof underground pipeline structures and construction process thereof in the weak soil matrix of seepage.
Background technique
Weak soil matrix is due to soil property own, the impact that the structure of under ground piping itself and work progress all can be certain on its mass formation.At present, under ground piping is substantially all directly to adopt one whole pipeline to be connected with inspection, after long-time use, due to the impact of weak soil itself, seepage is in construction in the past, in use, all occur than being easier to, as cause pipeline floating bending, piping failure distortion etc., and be not easy to be discovered when there is seepage, this seepage not only causes the severe contamination of underground water and soil and As time goes on strengthens, also can cause the unstable of near the road of pipe network and structure foundation, there is pavement crack and the problem of subsiding, and also trouble of its maintenance, cost is high, long in time limit, and maintenance effect is also bad., after long-term use, because the quality of weak soil matrix own is too soft, affect using effect.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide a kind of simple in structure, pipe fitting is combined with the borehole wall well, prevent leakage proof underground pipeline structures and construction process thereof in the weak soil matrix of seepage.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, comprise inspection shaft and HDPE pipeline, on the borehole wall of the inspection shaft described in it is characterized in that, offer attachment hole, the installation collar is closely set on attachment hole, described HDPE pipeline is pegged graft to be arranged on and is installed on the collar, between HDPE pipeline and the installation collar, seal ring is set, described HDPE pipeline is segmentation structure.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, it is characterized in that described HDPE pipeline comprises the HDPE pipe that one end is connected with inspection shaft, a described HDPE pipe the other end connects transition HDPE pipe one end, the transition HDPE pipe the other end is connected with the 2nd HDPE pipe, a described HDPE pipe, transition HDPE pipe, the joint that the 2nd HDPE manages between any two arranges respectively seal ring, described seal ring height is all managed with a HDPE, transition HDPE pipe, the crest height of the 2nd HDPE pipe is identical, the one HDPE length of tube is 0.5-0.8m, transition HDPE length of tube is 1-2m, described transition HDPE pipe is for one or more.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, is characterized in that described HDPE pipeline is bellows, and seal ring is arranged between adjacent two crests of HDPE pipeline proximal head.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, is characterized in that the described installation collar is the concrete structure collar, the internal diameter of the collar is installed than the large 3-5mm of the maximum outside diameter of HDPE pipeline.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, is characterized in that described HDPE pipeline and installs between the collar sandstone intermediary layer is set.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, it is characterized in that a described HDPE pipe is connected by transitional connection pipe with transition HDPE pipe, described transitional connection pipe two ends are respectively flaring structure, the one HDPE pipe inserts respectively in the enlarging at two ends with transition HDPE pipe, and seal ring is separately positioned between the primary peak and second crest of a HDPE pipe, transition HDPE pipe.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, it is characterized in that described transition HDPE pipe termination, one end arranges flaring structure, in the enlarging of the one HDPE pipe insertion transition HDPE pipe, be connected with it, seal ring is arranged between the primary peak and second crest of a HDPE pipe, for strengthening sealing.
Leakage proof underground pipeline structures in described a kind of weak soil matrix, it is characterized in that the 2nd described HDPE pipe termination, one end arranges enlarging, in the enlarging of transition HDPE pipe insertion the 2nd HDPE pipe, be connected with it, seal ring is arranged between the primary peak and second crest of transition HDPE pipe, for strengthening sealing.
In described weak soil matrix, the construction process of leakage proof underground pipeline structures, is characterized in that comprising the steps:
1) processing to soft soil zone: be down to below pipeline foundation bottom land 50cm by designing requirement level of ground water, basis 30cm changes to fill out with the interior employing slag of delaying with the interior slag of delaying and changes and fill out, change and complete Cheng Houzai place mat one deck gravel or rubble in pipeline substrate, thickness is not less than 150mm, ballast grain sizes is 5mm-40mm, above placing sand bed course 20mm;
2) selection of material
The performance requirement of the one HDPE pipe, transition HDPE pipe, the 2nd HDPE pipe: appearance color is consistent, inner wall smooth is smooth, pipe shaft must not have crack, ripple continuous damagedly must not exceed 2 articles, the mouth of pipe and must not have breakage, crack, distortion;
The performance requirement of seal ring: elongation percentage % >=500; Permanent deformation %<20; Aging coefficient >=0.8, outward appearance should be smooth, do not allowed the defects such as pore, crack, breakage, pipe, and specification should match with tubing;
Bellmouth and the socket of the one HDPE pipe, transition HDPE pipe, the 2nd HDPE pipe: bellmouth inwall, cushion rubber are cleaned out, and when installation, bellmouth inwall and seal ring outer rim need be coated with oiling agent;
3) installation of seal ring and HDPE pipe, transition HDPE pipe: smooth-going, smooth seal ring being enclosed within socket groove, must not bending, fracture, and press one time along whole cushion rubber, guarantee that each part of cushion rubber does not stick up not turn round to be evenly closely stuck in groove;
4) connection of a HDPE pipe, transition HDPE pipe, the 2nd HDPE pipe, adjusts tubular axis line and guarantees on same axis, pinions each connecting tube with straight steel wire, ensures that it is parallel;
5) level of ground water upper sector, for ensure a HDPE pipe tubing be combined with inspection shaft well water-tight, before connection, first concrete processed is installed the collar, be used for being arranged on a HDPE pipe tubing and and inspection shaft between, when construction, first a HDPE pipe pipe end socket position is put to seal ring, and a HDPE is managed to this end and inject in the installation collar that concrete makes, install between the collar and attachment hole with masonry of cement mortar, described installation sleeve endless tube wall thickness is 50mm, width is 240mm, strength grade of concrete adopts C20, described slush cement and the proportioning of water are 1:2.5, the one HDPE pipe is greater than tubing thickness 1cm-2cm,
6) strictly control backfill construction
HDPE pipeline pipe base plinth is above, outer diameter tube 1/4 part adopts coarse sand backfill, and remaining part employing particle diameter is less than 40mm gravel, medium coarse sand carries out backfill; Pipe end basic part, within the scope of the above 0.5m in pipe top, is used artificial backfill, along the backfill of pipe shaft bilateral symmetry compacting; Every layer of backfill highly should not exceed 0.2m; Pipeline and basic Jian Guanye district should note filling closely knit.The above part backfill of pipe top 0.5m, can adopt the backfill of excavator machinery, plate vibration machine compacting degree of compaction.
The construction process of leakage proof underground pipeline structures in described weak soil matrix, it is characterized in that between a HDPE pipe and inspection shaft, intermediary layer can be set replaces the installation collar, the work progress of intermediary layer is: pipe operations workman first with cotton by clean the removing surface of a HDPE pipe, then be coated with last layer high density polyethylene (HDPE) binder, and then the dry coarse sand of spreading one deck, solidify 10-20min, form shaggy intermediary layer, after intermediary layer completes, the one HDPE pipe fills up by slush with attachment hole surrounding place again, it is 20-30cm that the length of intermediary layer is built into the length of inspection shaft depending on pipeline, be preferably 24cm.
The present invention, by adopting above-mentioned technology, compared with prior art, has following beneficial effect:
1) the present invention is by adopting above-mentioned technology, the installation collar by concrete casting injection forming is set on the attachment hole of inspection shaft, HDPE pipeline is closely inserted and installed in the collar, and between two crests of HDPE pipeline, seal ring is further set, further, the present invention adopts segmented connecting tube to replace whole long tube in the past in HDPE pipeline, and owing to having section of tubing in soft soil foundation, and level of ground water is higher, by a HDPE pipe, the length of transition HDPE pipe is defined as respectively 0.5-0.8m and 1-2m, prevent from using for a long time in weak soil matrix, pipeline is connected bottom, one end soil with inspection shaft glides, cause rear end of pipeline floating bending, the phenomenons such as piping failure distortion produce, can greatly improve stability and sealing, reduce maintenance probability, improve using effect and working life, be suitable for the medium-term and long-term use of weak soil matrix,
2) the present invention is according to actual conditions, if mounting point is more shallow, can between a HDPE pipe and inspection shaft, intermediary layer can be set and replace the installation collar, the work progress of intermediary layer is: pipe operations workman first with cotton by clean the removing surface of a HDPE pipe, then be coated with last layer high density polyethylene (HDPE) binder, and then the dry coarse sand of spreading one deck, solidify 10-20min, form shaggy intermediary layer, after intermediary layer completes, the one HDPE pipe fills up by slush with attachment hole surrounding place again, it is 20-30cm that the length of intermediary layer is built into the length of inspection shaft depending on pipeline, be preferably 24cm, can suitably reduce costs,
3) the present invention, by soft soil zone is processed, makes weak soil section groove acceptance test up-to-standard rate reach 95%, for pipeline construction provides environment, meets quality, safety requirement;
4) the present invention is by being correspondingly processed on inspection shaft, HDPE pipeline, and to being rigid in checking up in the selection of tubing, inspection shaft is connected with HDPE pipeline spigot-and-socket, and improve sealability with seal ring, ensure that the site inspection mouth of pipe is non-leakage, rate 100% is up to the standards;
5) the present invention, through adjusting method of construction, has met the non-leakage requirement in joint, reaches 95% through the rate of being up to the standards.Meet drift sand well depth, quantity is many, separately also has local well section joint, still has trickle Seepage.After rectification, finally ensure that 100% is non-leakage, and strictly controlled backfill construction, avoid the phenomenon such as damage, distortion of tubing and interface thereof, and made backfill degree of compaction reach designing requirement more than 95%;
6) the present invention is by adopting this leakage proof underground pipeline structures, and coordinates by the construction process limiting, compared with common cement socket joint waste pipe, its duration shortens half, and double many working life, and energy consumption loss reduces, cost is few, has greatly improved economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place enlarged view in Fig. 1 of the present invention;
Fig. 3 is the local structure for amplifying schematic diagram of the HDPE pipeline in Fig. 1 of the present invention.
In figure: 1-inspection shaft, 101-attachment hole, 2-installs the collar, 3-seal ring, 4-HDPE pipeline, 402-crest, 401-the one HDPE pipe, 402-crest, 403-transitional connection pipe, 404-transition HDPE pipe, 405-enlarging, 406-the 2nd HDPE pipe, the 5-borehole wall.
Embodiment
Below in conjunction with Figure of description, the invention will be further described:
As Figure 1-3, leakage proof underground pipeline structures in a kind of weak soil matrix, comprise inspection shaft 1 and HDPE pipeline 4, on the borehole wall 5 of described inspection shaft 1, offer attachment hole 101, closely arrange the collar 2 is installed on attachment hole 101, it is the concrete structure collar that the collar 2 is installed, the internal diameter of the collar 2 is installed than the large 3-5mm of the maximum outside diameter of HDPE pipeline 4, whether this installation collar 2 sees needs according to actual conditions, and level of ground water upper sector needs to use, and lower section of level of ground water can, described HDPE pipeline 4 is pegged graft to be arranged on and is installed on the collar 2, between HDPE pipeline 4 and the installation collar 2, seal ring 3 is set, described HDPE pipeline 4 is segmentation structure, it comprises the HDPE pipe 401 that one end is connected with inspection shaft, a described HDPE manages 401 the other ends connection transition HDPE and manages 404 one end, transition HDPE manages 404 the other ends and is connected with the 2nd HDPE pipe 406, a described HDPE pipe 401, transition HDPE pipe 404, the 2nd HDPE pipe 406 joint between any two arranges respectively seal ring 3, described seal ring 3 highly all manages 401 with a HDPE, transition HDPE pipe 404, the crest height of the 2nd HDPE pipe 406 is identical, and be arranged between adjacent two crests 402 of this pipe proximal head, it is 0.5-0.8m that the one HDPE manages 401 length, it is 1-2m that transition HDPE manages 404 length, described transition HDPE pipe 404 is one or more, between the one HDPE pipe 401 and the installation collar 2, sandstone intermediary layer is set.
As shown in Figure 3, a described HDPE pipe 401 is connected by transitional connection pipe 403 with transition HDPE pipe 404, described transitional connection pipe 403 two ends are respectively flaring structure, the one HDPE pipe 401 inserts respectively in the enlarging at two ends with transition HDPE pipe 404, seal ring 3 is separately positioned on a HDPE pipe 401, between the primary peak and second crest of transition HDPE pipe 404, or transition HDPE manages 404 terminations, one end flaring structure is set, in the enlarging of the one HDPE pipe 401 insertion transition HDPE pipes 404, be connected with it, seal ring 3 is arranged between the primary peak and second crest of a HDPE pipe 401, be used for strengthening sealing, the 2nd HDPE manages 406 terminations, one end enlarging 405 is set, and in the enlarging 405 of transition HDPE pipe 404 insertion the 2nd HDPE pipes 406, is connected with it, and seal ring 3 is arranged between the primary peak and second crest of transition HDPE pipe 404, for strengthening sealing.
In weak soil matrix of the present invention, the construction process of leakage proof underground pipeline structures, comprises the steps:
1) processing to soft soil zone: be down to below pipeline foundation bottom land 50cm by designing requirement level of ground water, basis 30cm changes to fill out with the interior employing slag of delaying with the interior slag of delaying and changes and fill out, change and complete Cheng Houzai place mat one deck gravel or rubble in pipeline substrate, thickness is not less than 150mm, ballast grain sizes is 5mm-40mm, above placing sand bed course 20mm;
Must not ponding in groove while having constructed check of foundation subsoil: high for level of ground water, pipeline groove excavation is dark, on average reaches 6 meters of degree of depth, and the present invention adopts the well-points dewatering of groove both sides, guarantee makes level of ground water be down to the following 0.5m of bottom land, whole construction period must not stop precipitation, avoids rainy day construction pipeline operation as far as possible, if when construction 5, June, run into rainy season, adopt an effective measure, should shorten as far as possible slotting length, be no more than 60m at every turn; Groove is carried out the processing that intercepts water outward, prevents that rainwater from flowing into generation seeping phenomenon in construction groove, accomplishes that grooving is fast, and backfill is fast, carries out anti-foam groove measure, establishes plash in groove, and pipeline teams and groups arrange 2 precipitation apparatus submersible pumps to draw water at any time, guarantee in groove without ponding;
2) selection of material
The performance requirement of the one HDPE pipe 401, transition HDPE pipe 404, the 2nd HDPE pipe 406: appearance color is consistent, inner wall smooth is smooth, pipe shaft must not have crack, ripple continuous damagedly must not exceed 2 articles, the mouth of pipe and must not have breakage, crack, distortion; A HDPE pipe 401 of the present invention, transition HDPE pipe 404, the 2nd HDPE pipe 406 adopt D300, D400 small-bore pipeline, adopt seal ring bayonet joint mode in work progress;
The performance requirement of seal ring 3: elongation percentage % >=500; Permanent deformation %<20; Aging coefficient >=0.8, outward appearance should be smooth, do not allowed the defects such as pore, crack, breakage, pipe, and specification should match with tubing;
Bellmouth and the socket of the one HDPE pipe 401, transition HDPE pipe 404, the 2nd HDPE pipe 406: bellmouth inwall, cushion rubber are cleaned out, and when installation, bellmouth inwall and seal ring 3 outer rims need be coated with oiling agent, generally use silicone oil;
3) installation of seal ring 3 and HDPE pipe 401, transition HDPE pipe 404: smooth-going, smooth seal ring 3 being enclosed within socket groove, must not bending, fracture, and press one time along whole cushion rubber, guarantee that each part of cushion rubber does not stick up not turn round to be evenly closely stuck in groove;
4) connection of a HDPE pipe 401, transition HDPE pipe 404, the 2nd HDPE pipe 406, adjusts tubular axis line and guarantees on same axis, pinions each connecting tube with straight steel wire, ensures that it is parallel;
5) level of ground water upper sector, in order to ensure that a HDPE manages 401 tubing with well water-tight with inspection shaft 1 combination, before connection, first concrete processed is installed the collar 2, be used for being arranged on a HDPE manage 401 tubing and and inspection shaft 1 between, when construction, first a HDPE is managed to 401 pipe end socket positions and put seal ring 3, and in the installation collar 2 that HDPE pipe 401 these ends reeve concrete are made, install between the collar 2 and attachment hole 101 with masonry of cement mortar, the described installation collar 2 thicknesss of pipe wall are 50mm, width is 240mm, strength grade of concrete adopts C20, described slush cement and the proportioning of water are 1:2.5, the one HDPE pipe 401 is greater than tubing thickness 1cm-2cm, shaft bottom chute is combined smooth-going with inner tube wall, the mouth of pipe flushes with well inwall,
6) strictly control backfill construction
HDPE pipeline 4 pipe base plinth are above, outer diameter tube 1/4 part adopts coarse sand backfill, and remaining part employing particle diameter is less than 40mm gravel, medium coarse sand carries out backfill; Pipe end basic part, within the scope of the above 0.5m in pipe top, is used artificial backfill, along the backfill of pipe shaft bilateral symmetry compacting; Every layer of backfill highly should not exceed 0.2m; Pipeline and basic Jian Guanye district should note filling closely knit.The above part backfill of pipe top 0.5m, can adopt the backfill of excavator machinery, plate vibration machine compacting degree of compaction.
In the time that in weak soil matrix, under ground piping mounting point is more shallow, can be before a HDPE pipe 401 be connected with inspection shaft 1, pipe operations workman first with cotton by clean the removing surface of a HDPE pipe 401, then be coated with last layer high density polyethylene (HDPE) binder, and then the dry coarse sand of spreading one deck, solidify 10-20min, form shaggy intermediary layer, after intermediary layer completes, the one HDPE pipe 401 fills up by slush with attachment hole 101 surrounding places again, the length of described intermediary layer builds into the length of inspection shaft depending on pipeline to be 20-30cm, to be preferably 24cm.
Because HDPE pipeline 4 is a kind of plastic tubes, thermal deformation coefficient is large, before pipeline backfill because the variation of external temperature, External Force Acting elongates or shortens; Reasonable arrangement pipeline is hidden builds order by laying bricks or stones with inspection shaft, avoiding first building well causes occurring between well casing gap, pipe deforming and well is damaged, should after pipeline major part is hidden, build again inspection shaft by laying bricks or stones, and before backfill, take pipeline fixing measure, first at pipeline intermediate portion backfill system sand, to prevent that pipeline from producing displacement.
Claims (10)
1. leakage proof underground pipeline structures in a weak soil matrix, comprise inspection shaft (1) and HDPE pipeline (4), on the borehole wall (5) of the inspection shaft (1) described in it is characterized in that, offer attachment hole (101), on attachment hole (101), closely arrange the collar (2) is installed, described HDPE pipeline (4) is pegged graft to be arranged on and is installed on the collar (2), between HDPE pipeline (4) and the installation collar (2), seal ring (3) is set, described HDPE pipeline (4) is segmentation structure.
2. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 1, it is characterized in that described HDPE pipeline (4) comprises the HDPE pipe (401) that one end is connected with inspection shaft, described HDPE pipe (401) the other end connects transition HDPE pipe (404) one end, transition HDPE pipe (404) the other end is managed (406) with the 2nd HDPE and is connected, a described HDPE pipe (401), transition HDPE manages (404), the 2nd HDPE pipe (406) joint between any two arranges respectively seal ring (3), described seal ring (3) is highly all managed (401) with a HDPE, transition HDPE manages (404), the crest height of the 2nd HDPE pipe (406) is identical, the one HDPE pipe (401) length is 0.5-0.8m, transition HDPE pipe (404) length is 1-2m, described transition HDPE pipe (404) is one or more.
3. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 1, is characterized in that described HDPE pipeline (4) is bellows, and seal ring (3) is arranged between adjacent two crests (402) of HDPE pipeline (4) proximal head.
4. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 1, is characterized in that the described installation collar (2) is the concrete structure collar, the internal diameter of the collar (2) is installed than the large 3-5mm of maximum outside diameter of HDPE pipeline (4).
5. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 1, is characterized in that described HDPE pipeline (4) and installs between the collar (2) sandstone intermediary layer is set.
6. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 2, it is characterized in that a described HDPE pipe (401) is connected by transitional connection pipe (403) with transition HDPE pipe (404), described transitional connection pipe (403) two ends are respectively flaring structure, the one HDPE pipe (401) inserts respectively in the enlarging at two ends with transition HDPE pipe (404), and seal ring (3) is separately positioned between the primary peak and second crest of a HDPE pipe (401), transition HDPE pipe (404).
7. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 2, it is characterized in that described transition HDPE pipe (404) termination, one end arranges flaring structure, in the enlarging of the one HDPE pipe (401) insertion transition HDPE pipe (404), be connected with it, seal ring (3) is arranged between the primary peak and second crest of a HDPE pipe (401), for strengthening sealing.
8. leakage proof underground pipeline structures in a kind of weak soil matrix according to claim 2, it is characterized in that the 2nd described HDPE pipe (406) termination, one end arranges enlarging (405), in the enlarging (405) of transition HDPE pipe (404) insertion the 2nd HDPE pipe (406), be connected with it, seal ring (3) is arranged between the primary peak and second crest of transition HDPE pipe (404), for strengthening sealing.
9. a construction process for leakage proof underground pipeline structures in weak soil matrix according to claim 2, is characterized in that comprising the steps:
1) processing to soft soil zone: be down to below pipeline foundation bottom land 50cm by designing requirement level of ground water, basis 30cm changes and fills out with the interior employing slag of delaying, change and complete Cheng Houzai place mat one deck gravel or rubble in pipeline substrate, thickness is not less than 150mm, ballast grain sizes is 5mm-40mm, above placing sand bed course 20mm;
2) selection of material
The performance requirement of the one HDPE pipe (401), transition HDPE pipe (404), the 2nd HDPE pipe (406): appearance color is consistent, inner wall smooth is smooth, pipe shaft must not have crack, ripple continuous damagedly must not exceed 2 articles, the mouth of pipe and must not have breakage, crack, distortion;
The performance requirement of seal ring (3): elongation percentage % >=500; Permanent deformation %<20; Aging coefficient >=0.8, outward appearance should be smooth, do not allowed the defects such as pore, crack, breakage, pipe, and specification should match with tubing;
Bellmouth and the socket of the one HDPE pipe (401), transition HDPE pipe (404), the 2nd HDPE pipe (406): bellmouth inwall, cushion rubber are cleaned out, and when installation, bellmouth inwall and seal ring (3) outer rim need be coated with oiling agent;
3) installation of seal ring (3) and HDPE pipe (401), transition HDPE pipe (404): smooth-going, smooth seal ring (3) being enclosed within socket groove, must not bending, fracture, and press one time along whole cushion rubber, guarantee that each part of cushion rubber does not stick up not turn round to be evenly closely stuck in groove;
4) connection of a HDPE pipe (401), transition HDPE pipe (404), the 2nd HDPE pipe (406), adjusts tubular axis line and guarantees on same axis, pinions each connecting tube with straight steel wire, ensures that it is parallel;
5) level of ground water upper sector, in order to ensure that HDPE pipe (401) tubing is with well water-tight with inspection shaft (1) combination, before connection, first concrete processed is installed the collar (2), be used for being arranged on HDPE pipe (401) tubing and and inspection shaft (1) between, when construction, first HDPE pipe (401) pipe end socket position is put to seal ring (3), and in the installation collar (2) that this end reeve concrete of a HDPE pipe (401) is made, install between the collar (2) and attachment hole (101) with masonry of cement mortar, the described installation collar (2) thickness of pipe wall is 50mm, width is 240mm, strength grade of concrete adopts C20, described slush cement and the proportioning of water are 1:2.5, the one HDPE pipe (401) is greater than tubing thickness 1cm-2cm,
6) strictly control backfill construction
HDPE pipeline (4) pipe base plinth is above, outer diameter tube 1/4 part adopts coarse sand backfill, and remaining part employing particle diameter is less than 40mm gravel, medium coarse sand carries out backfill; Pipe end basic part, within the scope of the above 0.5m in pipe top, is used artificial backfill, along the backfill of pipe shaft bilateral symmetry compacting; Every layer of backfill highly should not exceed 0.2m; Pipeline and basic Jian Guanye district should note filling closely knit, and the above part backfill of pipe top 0.5m can adopt the backfill of excavator machinery, plate vibration machine compacting degree of compaction.
10. the construction process of leakage proof underground pipeline structures in weak soil matrix according to claim 9, it is characterized in that between a HDPE pipe (401) and inspection shaft (1), intermediary layer can be set replaces the installation collar, the work progress of intermediary layer is: the removing surface that pipe operations workman first manages (401) with cotton by a HDPE is clean, then be coated with last layer high density polyethylene (HDPE) binder, and then the dry coarse sand of spreading one deck, solidify 10-20min, form shaggy intermediary layer, after intermediary layer completes, the one HDPE pipe (401) fills up by slush with attachment hole (101) surrounding place again, it is 20-30cm that the length of intermediary layer is built into the length of inspection shaft depending on pipeline, be preferably 24cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170192.0A CN103939669B (en) | 2014-04-25 | 2014-04-25 | Antiseep underground pipeline structures and construction technology thereof in a kind of weak soil substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170192.0A CN103939669B (en) | 2014-04-25 | 2014-04-25 | Antiseep underground pipeline structures and construction technology thereof in a kind of weak soil substrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939669A true CN103939669A (en) | 2014-07-23 |
| CN103939669B CN103939669B (en) | 2016-06-22 |
Family
ID=51187464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410170192.0A Active CN103939669B (en) | 2014-04-25 | 2014-04-25 | Antiseep underground pipeline structures and construction technology thereof in a kind of weak soil substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939669B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253866A (en) * | 2018-03-02 | 2018-07-06 | 核工业理化工程研究院 | Measure the Three-coordinate measurer and its measuring method of thin wall special-shaped tube wave peak flat segments wall thickness |
| CN108758081A (en) * | 2018-06-13 | 2018-11-06 | 云南建投第十建设有限公司 | Heavy caliber PE pipe installation methods |
| CN110820802A (en) * | 2019-10-15 | 2020-02-21 | 四川佳世特橡胶有限公司 | Prefabricated comprehensive pipe gallery and assembling construction process thereof |
| CN113566025A (en) * | 2021-06-01 | 2021-10-29 | 中国二十冶集团有限公司 | Anti-leakage connection method for joint surface between chemical pipe and well |
| CN113818539A (en) * | 2021-09-13 | 2021-12-21 | 中国一冶集团有限公司 | Inspection well interface device |
| CN114396520A (en) * | 2021-11-02 | 2022-04-26 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-sealing connection socket joint of plastic inspection well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795613Y (en) * | 2005-04-09 | 2006-07-12 | 潍坊中云机器有限公司 | Plastic corrugated pipe reinforced expansive mouth |
| CN101725787A (en) * | 2009-12-08 | 2010-06-09 | 潍坊中云科研有限公司 | Plastic corrugated pipe connecting device as well as molding method and molding device thereof |
| KR20110024679A (en) * | 2009-09-03 | 2011-03-09 | 김선홍 | Spiral pipe socket |
| CN202265893U (en) * | 2011-10-02 | 2012-06-06 | 广州市城市规划勘测设计研究院 | Municipal drainage pipe connecting structure |
| CN102518897A (en) * | 2011-12-26 | 2012-06-27 | 杭州金民管业有限公司 | Self-sealing socket butt-joint corrugated pipe and manufacture method |
-
2014
- 2014-04-25 CN CN201410170192.0A patent/CN103939669B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2795613Y (en) * | 2005-04-09 | 2006-07-12 | 潍坊中云机器有限公司 | Plastic corrugated pipe reinforced expansive mouth |
| KR20110024679A (en) * | 2009-09-03 | 2011-03-09 | 김선홍 | Spiral pipe socket |
| CN101725787A (en) * | 2009-12-08 | 2010-06-09 | 潍坊中云科研有限公司 | Plastic corrugated pipe connecting device as well as molding method and molding device thereof |
| CN202265893U (en) * | 2011-10-02 | 2012-06-06 | 广州市城市规划勘测设计研究院 | Municipal drainage pipe connecting structure |
| CN102518897A (en) * | 2011-12-26 | 2012-06-27 | 杭州金民管业有限公司 | Self-sealing socket butt-joint corrugated pipe and manufacture method |
Non-Patent Citations (2)
| Title |
|---|
| 韩莹，刘东辉: "《建筑水暖电施工技术与实例》", 31 January 2013, article "建筑水暖电施工技术与实例" * |
| 韩莹，刘东辉: "《建筑水暖电施工技术与实例》", 31 January 2013, 化学工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253866A (en) * | 2018-03-02 | 2018-07-06 | 核工业理化工程研究院 | Measure the Three-coordinate measurer and its measuring method of thin wall special-shaped tube wave peak flat segments wall thickness |
| CN108758081A (en) * | 2018-06-13 | 2018-11-06 | 云南建投第十建设有限公司 | Heavy caliber PE pipe installation methods |
| CN110820802A (en) * | 2019-10-15 | 2020-02-21 | 四川佳世特橡胶有限公司 | Prefabricated comprehensive pipe gallery and assembling construction process thereof |
| CN113566025A (en) * | 2021-06-01 | 2021-10-29 | 中国二十冶集团有限公司 | Anti-leakage connection method for joint surface between chemical pipe and well |
| CN113818539A (en) * | 2021-09-13 | 2021-12-21 | 中国一冶集团有限公司 | Inspection well interface device |
| CN114396520A (en) * | 2021-11-02 | 2022-04-26 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-sealing connection socket joint of plastic inspection well |
| CN114396520B (en) * | 2021-11-02 | 2024-04-02 | 安徽省生宸源材料科技实业发展股份有限公司 | Self-sealing connection socket for plastic inspection well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939669B (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103939669B (en) | Antiseep underground pipeline structures and construction technology thereof in a kind of weak soil substrate | |
| CN102486247B (en) | Water supply and drainage pipeline repair technique adopting size film lining method | |
| CN110565779B (en) | Method for trenchless replacement and repair of sewage pipeline | |
| CN202787329U (en) | Large leakage treatment structure for underground continuous wall | |
| CN111677095A (en) | Construction method of drainage pipeline | |
| CN103437417B (en) | Part repair structure for steel lining of drainage pipeline | |
| CN103291326A (en) | Reconstructed bearing layer control technology of large-deformation roadway surrounding rock | |
| CN101691840B (en) | Water level observation well and construction method thereof | |
| CN204401485U (en) | The construction structure of high roadbed draining Steel Corrugated Pipe Culvert | |
| CN101538891B (en) | Non-excavation fiber glass reinforced plastics inspection well and construction method thereof | |
| CN105605335A (en) | Large-caliber prestressed steel cylinder concrete pipe for jacking construction | |
| CN105443141A (en) | Tunnel base reinforcement method | |
| CN102864833A (en) | Application of finished plastic inspection well in outdoor drainage system | |
| CN108253199A (en) | Internal-rib enhances polyethylene helical bellows and its connector connecting method | |
| CN102425228A (en) | Multifunctional environment-friendly movable water tank | |
| CN110924438A (en) | Prefabricated member of assembled rectangular inspection well | |
| CN202937918U (en) | Reinforced concrete drainage pipe connecting structure | |
| CN110965487B (en) | Down-pass passage high-flow reverse-suction siphon sewage pipe and encapsulation treatment construction method | |
| CN210481933U (en) | Damaged concrete pavement is whitely changed black and is consolidated and reform transform structure | |
| CN110056012B (en) | Waterproof and drainage system of prefabricated open caisson structure | |
| CN107100100A (en) | The corrugated steel pipe shaping culvert construction method of housing type joint connection | |
| CN208058152U (en) | Internal-rib enhances polyethylene helical bellows | |
| CN205716060U (en) | Municipal wastewater abnormity concrete pipe | |
| CN105133719A (en) | Construction method for quickly solving sand leakage and gushing caused by dislocation of rain pipes | |
| CN105887902B (en) | Well point plastic strip vacuum pre-pressed joint precipitating, pre-pressing dynamic consolidation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |