CN109706811A - A kind of HDPE film is used for the construction method of road foundation antiseepage - Google Patents
A kind of HDPE film is used for the construction method of road foundation antiseepage Download PDFInfo
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- CN109706811A CN109706811A CN201811458007.2A CN201811458007A CN109706811A CN 109706811 A CN109706811 A CN 109706811A CN 201811458007 A CN201811458007 A CN 201811458007A CN 109706811 A CN109706811 A CN 109706811A
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Abstract
The present invention relates to the construction methods that a kind of HDPE film is used for road foundation antiseepage, comprising the following steps: excavates foundation trench, a groove is opened up within the scope of land for roads；It is laid with bentonite waterproof blanket, is laid with one layer of bentonite waterproof blanket on the foundation trench by the way of being directly stacked with；It is laid with bottom HDPE antiseepage film, HDPE antiseepage film is laid in the bentonite waterproof blanket, the lap width of film and the seam of film is not less than 15cm, is welded at abutment joint by the way of three seam welding；Industrial residue earthen backfill is filled and is compacted to two layers of progress Industry Waste dregs of the foundation trench point；It is laid with top HDPE antiseepage film, sets HDPE antiseepage film on Industry Waste dregs upper berth, and welding is sealed to the bottom HDPE antiseepage film and the top HDPE antiseepage film；Detection is checked and accepted and protective layer construction, carries out detection examination after completing construction, and result is recorded after acceptance(check) and carries out protective layer construction immediately.Construction method of the invention can guarantee good anti-seepage effect and longer service life.
Description
Technical field
The present invention relates to a kind of subgrade engineering technical field, in particular to a kind of HDPE film is applied for road foundation antiseepage
Work method.
Background technique
In road construction, roadbed is the key factor for guaranteeing that pavement quality is steady in a long-term, and compacting homogeneous quality is really up to the mark
Roadbed can make stable placed on it in road surface, be not susceptible to crack and section.But under actual conditions very due to factors such as infiltrations
It is easy to cause roadbed empty, sagging, road surface is then caused to sink, be broken therewith, so that road surface can occur because of roadbed well
Problem and cause to scrap or rebuild, serious waste manpower and material resources also influence the normal life of the masses nearby, therefore roadbed is anti-
Seepage problem needs to cause enough attention.
In view of the above-mentioned problems, general using flexible cushion is laid under sub-surface, expansion joint is arranged using waterproofs such as pitches
It applies, but both methods cannot effectively prevent pavement seepage.With the continuous development of geosynthetics, it is extensive
Applied to fields such as water conservancy, railway, harbour, highway, urban construction and ecological environments, function mainly includes antiseepage, adds
Muscle, filtering layer and draining (exhaust) are isolated and protective effect.The material that HDPE antiseepage film uses is environment-protecting and non-poisonous, prevents with excellent
Permeance property and higher chemical stability and resistance to ag(e)ing have been widely used for the anti-of the engineering projects such as environmental protection, water conservancy, municipal administration
The parts such as infiltration, anti-corrosion, moisture-proof.
When by HDPE antiseepage film be applied to road foundation construct when, need to consider the vibrating compacting of 22t heavy road roller and
The influence repeatedly of later period heavy traffic load.If none scientific and reasonable arrangement and method for construction is easy to cause HDPE antiseepage film to exist
It is destroyed in the influence process repeatedly of topography variation or the vibrating compacting of 22t heavy road roller and later period heavy traffic load.
Summary of the invention
In view of the above problems in the prior art, the purpose of the present invention is to provide it is a kind of it is easy for construction, being capable of long-term antiseepage
Road foundation antiseepage construction method, it is intended to temperature becomes after the completion of reducing in work progress road roller vibrating compacting and construction
Change, the influence of topography variation and heavy traffic load to HDPE antiseepage film.
To solve the above-mentioned problems, the present invention provides the construction method that a kind of HDPE film is used for road foundation antiseepage, including
Following steps:
S1, it excavates foundation trench: opening up a groove within the scope of land for roads, the cross section of the groove is isosceles trapezoid knot
Structure, the groove surfaces are solid, smooth, and corner is round and smooth；
S2, it is laid with bentonite waterproof blanket: being laid with one layer of bentonite waterproof on the foundation trench by the way of being directly stacked with
Blanket；
S3, it is laid with bottom HDPE antiseepage film: being laid with HDPE antiseepage film, the HDPE antiseepage in the bentonite waterproof blanket
The lap width of film and the seam of HDPE antiseepage film is not less than 15cm, is welded at abutment joint by the way of three seam welding
It connects；
S4, industrial residue earthen backfill: foundation trench progress first floor Industry Waste dregs is filled and is compacted, compacted thickness first
For 30cm, then proceed to that foundation trench progress Industry Waste dregs is filled and is compacted, until reaching predetermined altitude；
S5, it is laid with top HDPE antiseepage film: setting HDPE antiseepage film, the HDPE antiseepage film on Industry Waste dregs upper berth
It is not less than 15cm with the lap width of the seam of HDPE antiseepage film, is welded at abutment joint by the way of three seam welding,
And welding is sealed to the bottom HDPE antiseepage film and the top HDPE antiseepage film；
S6, detection are checked and accepted and protective layer construction: carrying out detection examination after completing construction, result is recorded after acceptance(check) and is existed side by side
Carry out protective layer construction.
Further, foundation trench described in step S1 meets without seeping water, catchment, debris and may cause environmental pollution
Harmful substance, foundation trench corner arc radius be not less than 50cm.
Further, the HDPE antiseepage film web length being laid in step S3 is 80m, width 6.5m, with a thickness of 2mm,
The adjacent HDPE antiseepage film fissure of displacement overlaps, and the stroke not less than 1.5% length is reserved in process of deployment.
Further, tentative welding is first carried out in step S3 before welded H DPE antiseepage film seam, tentative welding uses
The mode of three seam welding, welded specimen size are 0.9m × 0.3m, sample subscript phase tomorrow, moment and environment temperature, institute
The lap width of sample is stated not less than 15cm.
Further, the bonding machine used is welded in step S3 as hot melten type bonding machine or squash type bonding machine, it is described
For commonly welding, the squash type bonding machine reaches hot melten type bonding machine for repairing, covering or welding hot melten type bonding machine
Less than place.
Further, the width between adjacent two weld seams of three seam welding described in step S3 is not less than 5cm.
Further, air pressure detection, electric spark detection are carried out simultaneously to HDPE antiseepage film weld seam after the completion of welding in step S3
It is repaired to underproof weld seam is detected.
Further, top keeps solid, smooth after the final step compacting of industrial residue earthen backfill described in step S4.
Further, bottom is laid with described in the method for the HDPE antiseepage film of laying top described in step S5 and step S3
The method of HDPE antiseepage film is identical.
Due to above-mentioned technical proposal, the invention has the following advantages:
(1) between HDPE antiseepage film described in a kind of construction method of HDPE film of the invention for road foundation antiseepage
Lap width is not less than 15cm, and welding process uses three seam welding, and it is reliable to can effectively ensure that between HDPE antiseepage film that overlapped
Property, and then guarantee the anti-seepage effect of the seepage control system.
(2) HDPE antiseepage film described in a kind of construction method of HDPE film of the invention for road foundation antiseepage is reserved
Stroke can be in topography variation or the vibrating compacting of 22t heavy road roller and the influence process repeatedly of later period heavy traffic load
Middle generate is stretched, and is reduced the destruction to HDPE antiseepage film, is increased the service life of roadbed antiseepage.
(3) a kind of HDPE film of the invention uses Industry Waste dregs as roadbed for the construction method of road foundation antiseepage
Backfilling material can turn waste into wealth, and save the cost of road engineering, returned in two times in backfilling process using the method for placement in layers
It fills out, the destruction in backfilling process to HDPE antiseepage film can be effectively reduced.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical solution of the present invention
The attached drawing used is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is that a kind of HDPE film of the embodiment of the present invention is used for the construction method flow chart of road foundation antiseepage.
Fig. 2 is that a kind of HDPE film of the embodiment of the present invention is used for the structural schematic diagram of road foundation antiseepage.
In figure: 1- bentonite waterproof blanket, 2-HDPE antiseepage film, 3- Industry Waste dregs, 4- protective layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1
Reference book attached drawing 1 and Fig. 2, the present embodiment provides the construction parties that a kind of HDPE film is used for road foundation antiseepage
Method, comprising the following steps:
S1, it excavates foundation trench: opening up a groove within the scope of land for roads, the cross section of the groove is isosceles trapezoid knot
Structure, the groove surfaces are solid, smooth, and corner is round and smooth.Specifically, the foundation trench should meet flawless, without obvious jagged, nothing
It seeps water, catchment, debris and the harmful substance that may cause environmental pollution；Foundation trench corner arc radius is not less than
50cm。
S2, it is laid with bentonite waterproof blanket: being laid with one layer of bentonite waterproof on the foundation trench by the way of being directly stacked with
Blanket 1, specifically, lap width 15cm.
S3, it is laid with bottom HDPE antiseepage film: being laid with HDPE antiseepage film 2 in the bentonite waterproof blanket, the HDPE is anti-
The lap width for seeping the seam of film 2 and HDPE antiseepage film 2 is not less than 15cm, is carried out at abutment joint by the way of three seam welding
It welds, the width between adjacent two weld seams of three seam welding is not less than 5cm.Specifically, the HDPE antiseepage film of laying volume 2
Material length is 80m, width 6.5m, and with a thickness of 2mm, adjacent 2 fissure of displacement of HDPE antiseepage film is overlapped, and reserves and is not less than in process of deployment
The stroke of 1.5% length.Reserved stroke can be in topography variation or the vibrating compacting of 22t heavy road roller and later period
Flexible, destruction of the reduction above-mentioned factor to HDPE antiseepage film 2 is generated in the influence process repeatedly of heavy traffic load.
Tentative welding is first carried out before 2 seam of welded H DPE antiseepage film, it is tentative to weld also by the way of three seam welding,
Welded specimen size is 0.9m × 0.3m, sample subscript phase tomorrow, moment and environment temperature, the lap width of the sample
Not less than 15cm.
Grease, moisture, dust, rubbish and other substances on formal 2 surface of cleaning for bonding HDPE antiseepage film, when welding, adopt
The speed adjusted when with pass the test, pressure and temperature are formally welded, according to on-site actual situations pair in welding process
Speed and temperature are finely adjusted.When there is T shape seam and double-T stitches, scar, the corner cavetto of scar are mended using base material；Welding
The bonding machine that process uses is hot melten type bonding machine or squash type bonding machine, and the hot melten type bonding machine is for commonly welding, institute
Squash type bonding machine is stated for repairing, covering or welding the place that hot melten type bonding machine is not achieved；To HDPE after the completion of welding
2 weld seam of antiseepage film carries out air pressure detection, electric spark detection and repairs to underproof weld seam is detected.
Specifically, if there is fraction, the welding is not firm, welds again after should polishing；If there is pin hole or its
The region of his 2 thickness reduction of small local crack or HDPE antiseepage film, answers spot welding reparation；If there is big cavity, tear
Split the case where unevenly and by other substances polluting with raw material, Ying Caiyong patch reparation.
In addition, the construction method need to the weather at 5 DEG C of temperature or more, 4 grades of wind-force or less and without rain, without snow descend to carry out.
After the completion of HDPE antiseepage film 2 is laid with, walking, handbarrow etc. on film surface are reduced to the greatest extent, it must not threading when walking on film surface
The hard bottom shoes of the shoes or high heel of nail cannot be engaged in all activities for being possible to destroy HDPE antiseepage film 2.The side Bian Pu as far as possible when laying
Weldering, the laying same day on the same day are soldered.
S4, industrial residue earthen backfill: foundation trench progress first floor Industry Waste dregs 3 is filled and is compacted first, compacting is thick
Degree is 30cm, then proceedes to that foundation trench progress Industry Waste dregs 3 is filled and is compacted, until reaching predetermined altitude.Specifically,
22t heavy road roller vibroroller cmpacting is used in 3 backfilling process of Industry Waste dregs, the backfill of Industry Waste dregs 3 is most
Top keeps solid, smooth after latter step compacting, to protect HDPE antiseepage film 2 not to be destroyed.
S5, it is laid with top HDPE antiseepage film: being laid with HDPE antiseepage film 2, the HDPE antiseepage on the Industry Waste dregs 3
The lap width of film 2 and the seam of HDPE antiseepage film 2 is not less than 15cm, is welded at abutment joint by the way of three seam welding
It connects, and welding is sealed with the top HDPE antiseepage film 2 to the bottom HDPE antiseepage film 2.Specifically, the laying top
The method of portion's HDPE antiseepage film 2 is identical as the laying method of bottom HDPE antiseepage film 2.
S6, detection are checked and accepted and protective layer construction: carrying out detection examination after completing construction, result is recorded after acceptance(check) and is existed side by side
Protective layer 4 is carried out to construct.
A kind of HDPE film of the invention is used for the construction method of road foundation antiseepage, has the advantages that
(1) between HDPE antiseepage film described in a kind of construction method of HDPE film of the invention for road foundation antiseepage
Lap width is not less than 15cm, and welding process uses three seam welding, and it is reliable to can effectively ensure that between HDPE antiseepage film that overlapped
Property, and then guarantee the anti-seepage effect of the seepage control system.
(2) HDPE antiseepage film described in a kind of construction method of HDPE film of the invention for road foundation antiseepage is reserved
Stroke can be in topography variation or the vibrating compacting of 22t heavy road roller and the influence process repeatedly of later period heavy traffic load
Middle generate is stretched, and is reduced the destruction to HDPE antiseepage film, is increased the service life of roadbed antiseepage.
(3) a kind of HDPE film of the invention uses Industry Waste dregs as roadbed for the construction method of road foundation antiseepage
Backfilling material can turn waste into wealth, and save the cost of road engineering, returned in two times in backfilling process using the method for placement in layers
It fills out, the destruction in backfilling process to HDPE antiseepage film can be effectively reduced.
Above description sufficiently discloses a specific embodiment of the invention.It should be pointed out that being familiar with the field
Range of any change that technical staff does a specific embodiment of the invention all without departing from claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (9)
1. the construction method that a kind of HDPE film is used for road foundation antiseepage, which comprises the following steps:
S1, it excavates foundation trench: opening up a groove within the scope of land for roads, the cross section of the groove is isosceles trapezoidal structure, institute
It is solid, smooth to state groove surfaces, corner is round and smooth；
S2, it is laid with bentonite waterproof blanket: being laid with one layer of bentonite waterproof blanket on the foundation trench by the way of being directly stacked with；
S3, be laid with bottom HDPE antiseepage film: in the bentonite waterproof blanket be laid with HDPE antiseepage film, the HDPE antiseepage film with
The lap width of the seam of HDPE antiseepage film is not less than 15cm, is welded at abutment joint by the way of three seam welding；
S4, industrial residue earthen backfill: foundation trench progress first floor Industry Waste dregs is filled and is compacted first, compacted thickness is
30cm then proceedes to that foundation trench progress Industry Waste dregs is filled and is compacted, until reaching predetermined altitude；
S5, be laid with top HDPE antiseepage film: setting HDPE antiseepage film on Industry Waste dregs upper berth, the HDPE antiseepage film with
The lap width of the seam of HDPE antiseepage film is not less than 15cm, is welded at abutment joint by the way of three seam welding, and
Welding is sealed to the bottom HDPE antiseepage film and the top HDPE antiseepage film；
S6, detection check and accept and protective layer construction: complete construction after carry out detection examination, after acceptance(check) record result and immediately into
The construction of row protective layer.
2. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
Foundation trench described in S1 meet without seep water, catchment, debris and the harmful substance that may cause environmental pollution, the foundation trench turn
Arc radius is not less than 50cm at angle.
3. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
The HDPE antiseepage film web length being laid in S3 is 80m, width 6.5m, and with a thickness of 2mm, the adjacent HDPE antiseepage film fissure of displacement is taken
It connects, the stroke not less than 1.5% length is reserved in process of deployment.
4. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
Tentative welding is first carried out in S3 before welded H DPE antiseepage film seam, tentative welding is by the way of three seam welding, welding examination
Sample size is 0.9m × 0.3m, and sample subscript phase tomorrow, moment and environment temperature, the lap width of the sample is not less than
15cm。
5. the construction method that a kind of HDPE film according to claim 1 or 4 is used for road foundation antiseepage, which is characterized in that
The bonding machine used is welded in step S3 as hot melten type bonding machine or squash type bonding machine, the hot melten type bonding machine is for general
Logical welding, the squash type bonding machine is for repairing, covering or welding the place that hot melten type bonding machine is not achieved.
6. the construction method that a kind of HDPE film according to claim 1 or 4 is used for road foundation antiseepage, which is characterized in that
Width between adjacent two weld seams of three seam welding described in step S3 is not less than 5cm.
7. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
Air pressure detection, electric spark detection are carried out to HDPE antiseepage film weld seam after the completion of welding in S3 and carried out to underproof weld seam is detected
Repairing.
8. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
Top keeps solid, smooth after the final step compacting of industrial residue earthen backfill described in S4.
9. the construction method that a kind of HDPE film according to claim 1 is used for road foundation antiseepage, which is characterized in that step
The method of the HDPE antiseepage film of laying top described in S5 is identical as the laying method of bottom HDPE antiseepage film described in step S3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811458007.2A CN109706811A (en) | 2018-11-30 | 2018-11-30 | A kind of HDPE film is used for the construction method of road foundation antiseepage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811458007.2A CN109706811A (en) | 2018-11-30 | 2018-11-30 | A kind of HDPE film is used for the construction method of road foundation antiseepage |
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| CN109706811A true CN109706811A (en) | 2019-05-03 |
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|---|---|---|---|
| CN201811458007.2A Pending CN109706811A (en) | 2018-11-30 | 2018-11-30 | A kind of HDPE film is used for the construction method of road foundation antiseepage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158391A (en) * | 2019-05-15 | 2019-08-23 | 东南大学 | A kind of control method of seasonal frozen soil region roadbed freeze-harm |
| CN110685202A (en) * | 2019-09-23 | 2020-01-14 | 苏交科集团股份有限公司 | Lapping plate pushing construction method for reducing bumping at bridge head |
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| CN106049226A (en) * | 2016-06-16 | 2016-10-26 | 北京工业大学 | Waterproof seepage ditch with three slope surfaces being added with HDPE films |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158391A (en) * | 2019-05-15 | 2019-08-23 | 东南大学 | A kind of control method of seasonal frozen soil region roadbed freeze-harm |
| CN110685202A (en) * | 2019-09-23 | 2020-01-14 | 苏交科集团股份有限公司 | Lapping plate pushing construction method for reducing bumping at bridge head |
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Application publication date: 20190503 |