CN1154436A - Method for making water-proof layer in tunnel - Google Patents
Method for making water-proof layer in tunnel Download PDFInfo
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- CN1154436A CN1154436A CN 96100353 CN96100353A CN1154436A CN 1154436 A CN1154436 A CN 1154436A CN 96100353 CN96100353 CN 96100353 CN 96100353 A CN96100353 A CN 96100353A CN 1154436 A CN1154436 A CN 1154436A
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- plastic sheet
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Abstract
The present invention discloses a method of making water-proof layer for tunnel. Said method includes: laying PE foamed plastic buffer protective layer on the base surface of concrete initial support; fixing PE foamed plastics on the base surface of the initial support by using expanding screws and packing pieces made of water-proof plastic sheet material; using electrothermal press welder to make water-proof plastic sheet material heat-sealed on the packing pieces; using plastic heat-sealing machine to press-weld the lapped seam of the water-proof plastic sheet material so as to form integral water-proof layer. Said invention is simple in construction, low in cost, and its sealing property is good and water-proofing property is high.
Description
The present invention relates to the tunnel water proofing technology, relate in particular to the method for production of tunnel lining waterproofing course.
Development along with domestic and international electric railway and metro construction, tunnel water proofing is required also to improve thereupon, because tunnel percolating water can be to equipment corrosions such as rail, jeopardize traffic safety, also can exert an influence, reduce its application life, in order to improve the reliability of tunnel water proofing to tunnel structure is stable, current, constructing tunnel mostly adopts the composite lining structure both at home and abroad; First floor is the steel concrete preliminary bracing, the supporting upper berth makes and does waterproofing course in the early stage then, waterproofing course is made and is mostly adopted plastic sheet, American-European countries uses the PVC plate more, it is polyvinyl chloride panel, it is ethene-cruel sour ethylene copolymer film that Japan uses the EVA film, in recent years, the LDPE film is that High-Pressure Polyethylene Film has also obtained application, disclose in " tunnel collected translation " periodical the 7th phase of nineteen ninety (basic skills of construction of tunnel Sealing Technology and latest development) literary composition and adopted the manufacturing technology of plastic plate as tunnel waterproofing layer, use plastic sheet to do that waterproofing course has improved water resistance but its method for production exists following shortcoming, adopt nailing to wear out the waterproof plastic sheet material, be fixed in the concrete preliminary bracing, make waterproofing course that broken hole be arranged, destroyed the overall tightness of waterproofing course, though adopt the resin glue filling-up hole, but complex process, the cost height, and the height of adhesive strength, directly have influence on the integral waterproofing performance of waterproofing course, and plastic sheet is laid immediately on and sustains damage easily in the rough concrete preliminary bracing, and the lap gap of plastic sheet is with common electrical hot weld welding, single weld seam of formation, weld strength is low, and the commissure easily leaks.
The object of the present invention is to provide a kind of waterproofing course to realize not having the method for production that nail is laid; this method burrows fixing on the waterproofing course plastic sheet without mechanical means; the waterproofing course plastic sheet has the cushion coat protection; not damaged by concrete preliminary bracing basal plane; and waterproof plastic sheet material lap gap realizes that seam is tight; the intensity height improves the waterproofing course overall tightness.
In order to achieve the above object; the present invention is before laying the plastics waterproofing sheet material; adopt the PEF closed cell foamed plastic; be called for short the PE plate; as the buffer protection layer; give and being laid on earlier in the concrete preliminary bracing; be fixed by a pad with expanding tube screw or ail gun; pad adopts with the waterproof plastic sheet material and makes with the material plastics; the waterproof plastic sheet material is laid on the topping PE plate of pad isolation; electricity consumption thermocompression bonding device conducts heat the heat seal of waterproof plastic sheet material on pad by poly-trifluoro-ethylene glass wool cloth, and poly-trifluoro-ethylene glass wool cloth also plays buffer action, prevents from overheated the waterproof plastic sheet material to be damaged.And the seam that overlaps between the waterproof plastic sheet material adopts two weld seam heat-sealing machine hot pressing to connect, and forms the integral waterproofing layer.
Adopt the present invention to manufacture tunnel waterproofing layer, make the waterproofing course overall tightness good, water resistance increases substantially, and construction technology is simple, is convenient to operation, and with low cost, is convenient to promote the use of.
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is a waterproof layer structure schematic diagram of the present invention.
Fig. 2 is a laying process schematic diagram of the present invention.
Fig. 3 is plastic sheet seam welding schematic diagram of the present invention.
Fig. 4 is a gasket construction schematic diagram of the present invention.
Fig. 5 is Fig. 4 left view.
From Fig. 1 and Fig. 2, can find out, method for production step of the present invention is: sprayed mortar is as preliminary bracing (1) on the tunnel cross-section behind the excavation, lay PE plastic foamboard (2) on the basal plane of supporting in the early stage (1), on the PE plastic plate, punch with electric hammer with certain spacing, in hole depth and the preliminary bracing (1), plastics expand tube (8) is set in the hole, with LDPE waterproof plastic pad (4) corresponding to plastics expand tube (8), fastening with wood screw (7), PE plastic foamboard (2) is compressed by pad (4), be fixed in the preliminary bracing (1).Fig. 4 and Fig. 5 have shown the structure of pad, after the seam crossing of PE plastic foamboard heats with unit heater, connect and form integral body, be laid on PE cystosepiment (2) upward (4) after waterproofing course LDPE high pressure polyethylene plastic film (3) shoe being covered pad (4) then, go up poly-trifluoro-ethylene glass wool cloth (5) of placement at the plastic foil (3) at corresponding plastic spacer place greater than pad (4) diameter, after electricity consumption thermocompression bonding device (6) heating, with plastic waterproof membrane (3) heat seal on plastic spacer (4), as can be seen from Figure 3, plastic waterproof membrane (3) seam adopts the recurvation method, at first two membranes is docked, form hot melt adhesive point (9) with the plastic welder heat seal, 2 hot melt adhesive points (9) form two welding line joints (10), then two welding line joints (10) lateral bending point is welded on the plastic foil (3), thereby finish process of the present invention, the waterproof plastic film also can adopt other plastic sheet.
Claims (3)
1. method for production that is used for tunnel waterproofing layer, sprayed mortar forms preliminary bracing on tunnel cross-section, lay the plastic sheet waterproofing course in the early stage on the supporting basal plane, it is characterized in that: the method for production of waterproofing course is to be undertaken by following processing step, lay PE foamed plastics (2) on supporting at first in the early stage (1) basal plane, go up punching with mechanical means at PE foamed plastics (2), in hole depth and the preliminary bracing (1), plastics expand tube (8) is inserted in the hole, screw (7) penetrates plastic spacer (4), be fastened in the plastics expand tube (8), PE foamed plastics (2) is pressed on the basal plane of preliminary bracing (1), be laid on the PE foamed plastics (2) after again waterproof plastic sheet material (3) shoe being covered pad (4), go up corresponding to the waterproof plastic sheet material (3) of plastic spacer (4) electricity consumption thermocompression bonding device (6) by heat transfer pad material (5) with waterproof plastic sheet material (3) heat seal on plastic spacer (4), waterproof plastic sheet material seam adopts plastic welder hot pressing to form two weld seam seam joints (10)
2. according to the described method for making water-proof layer in tunnel of claim 1, it is characterized in that: the material composition of plastic spacer (4) is identical with waterproof plastic sheet material (3) composition,
3. it is characterized in that according to the described method for making water-proof layer in tunnel of claim 1: described heat transfer pad material (5) is poly-trifluoro-ethylene glass wool cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100353 CN1154436A (en) | 1996-01-12 | 1996-01-12 | Method for making water-proof layer in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96100353 CN1154436A (en) | 1996-01-12 | 1996-01-12 | Method for making water-proof layer in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1154436A true CN1154436A (en) | 1997-07-16 |
Family
ID=5116556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96100353 Pending CN1154436A (en) | 1996-01-12 | 1996-01-12 | Method for making water-proof layer in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1154436A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328475C (en) * | 2000-06-12 | 2007-07-25 | 格雷斯公司 | Tunnel waterproofing method |
| CN100591867C (en) * | 2008-07-23 | 2010-02-24 | 西安理工大学 | Building method of floor fissure strata tunnel deformation joint anti-seepage structure and anti-seepage structure |
| CN101360885B (en) * | 2006-03-14 | 2012-06-20 | 美克司株式会社 | Rondelle unit and method of mounting the same |
| CN102628367A (en) * | 2012-05-07 | 2012-08-08 | 衡水橡胶股份有限公司 | Waterproof roll material automatic leakage prevention fixing device and method for installing waterproof roll material by adopting same |
| CN102704954A (en) * | 2012-06-18 | 2012-10-03 | 陈继宇 | Construction method for waterproof system of tunnel |
| CN104476765A (en) * | 2014-10-22 | 2015-04-01 | 邓卫东 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
| CN105756690A (en) * | 2016-04-18 | 2016-07-13 | 北京东方雨虹防水技术股份有限公司 | Gasket for welding and fixing waterproof board and material for producing same |
| CN105888702A (en) * | 2016-05-09 | 2016-08-24 | 中国建筑第五工程局有限公司 | Waterproof construction method in underground engineering |
| CN110243688A (en) * | 2019-05-09 | 2019-09-17 | 中国水利水电科学研究院 | Dry concrete hydraulic fracture test specimen and implementation method |
-
1996
- 1996-01-12 CN CN 96100353 patent/CN1154436A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328475C (en) * | 2000-06-12 | 2007-07-25 | 格雷斯公司 | Tunnel waterproofing method |
| CN101360885B (en) * | 2006-03-14 | 2012-06-20 | 美克司株式会社 | Rondelle unit and method of mounting the same |
| CN100591867C (en) * | 2008-07-23 | 2010-02-24 | 西安理工大学 | Building method of floor fissure strata tunnel deformation joint anti-seepage structure and anti-seepage structure |
| CN102628367A (en) * | 2012-05-07 | 2012-08-08 | 衡水橡胶股份有限公司 | Waterproof roll material automatic leakage prevention fixing device and method for installing waterproof roll material by adopting same |
| CN102704954A (en) * | 2012-06-18 | 2012-10-03 | 陈继宇 | Construction method for waterproof system of tunnel |
| CN102704954B (en) * | 2012-06-18 | 2015-12-09 | 陈继宇 | A kind of construction method of tunnel waterproof system |
| CN104476765A (en) * | 2014-10-22 | 2015-04-01 | 邓卫东 | A tunnel waterproof board, a waterproof board welding method and a hot-melt welding machine |
| CN105756690A (en) * | 2016-04-18 | 2016-07-13 | 北京东方雨虹防水技术股份有限公司 | Gasket for welding and fixing waterproof board and material for producing same |
| CN105888702A (en) * | 2016-05-09 | 2016-08-24 | 中国建筑第五工程局有限公司 | Waterproof construction method in underground engineering |
| CN110243688A (en) * | 2019-05-09 | 2019-09-17 | 中国水利水电科学研究院 | Dry concrete hydraulic fracture test specimen and implementation method |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |