CN106149764A - A kind of precast assembly pipe gallery bell and spigot waterproof construction - Google Patents

Abstract

The invention discloses a prefabricated and assembled comprehensive pipe gallery socket socket waterproof structure, which comprises a joint formed by a pipe gallery socket and a pipe gallery socket. At the joint, from the outside to the inside of the joint, there are sequentially arranged Composed of 1.5-3.0mm thick PCM waterproof membrane, JS-211 two-component sealant, polyethylene foam filling board, EPDM wedge-shaped sealing ring, water-swellable elastic rubber body, polyethylene foam filling board, JS-211 type A waterproof structure composed of two-component sealant and 1.5-2.0mm thick EPIIR self-adhesive waterproof tape. This structure has multiple waterproof fortifications, and the outer PCM self-adhesive polymer modified bitumen waterproof membrane not only has the waterproof function, but also can prevent plant roots from puncturing and protect the outer seams; the two-component sealant caulking plays the role of waterproof and anti-seepage; In addition to waterproofing and anti-seepage, the inner EPIIR self-adhesive waterproof tape can also play the role of preventing insects and rats from biting. year.

Description

A prefabricated and assembled comprehensive pipe gallery socket socket waterproof structure

technical field

The invention relates to a prefabricated and assembled comprehensive pipe gallery, in particular to a waterproof structure for an outlet of a prefabricated and assembled comprehensive pipe gallery.

Background technique

The urban comprehensive pipe corridor, also known as the common ditch and the comprehensive pipe ditch, is an underground corridor built under the municipal road, which incorporates various municipal pipelines such as electricity, communication, heat, water supply and drainage, and sets up special maintenance Facilities and equipment such as mouth and feeding port. The unified construction and management of the urban comprehensive pipeline corridor saves the independent structures and earthwork excavation of the pipeline itself, which can effectively and intensively use space resources.

Different forms of underground comprehensive utility corridors have different cross-sectional forms, types of pipelines accommodated, cost, maintenance and management. At present, most of the underground comprehensive pipe galleries that have been built or are under construction are cast-in-place or centrifugally or vibrated in the factory to form a whole and transported to the construction site. These two methods have certain shortcomings: the construction period of pouring on-site box culvert is long, the labor intensity is high, the efficiency is low, it is greatly affected by the weather and site conditions, it is easy to cause relatively large pollution to the surrounding environment, the construction quality is also unstable, and the cost High; for the overall box culvert produced in factory, it takes a long time to form the pipe gallery, the process steps are cumbersome, the construction cost is high, and the transportation and hoisting are difficult. Especially for large box culverts, the investment in production equipment and hoisting equipment is huge. Difficult to have production equipment also can't manufacture.

Therefore, the prefabricated and assembled comprehensive pipe gallery came into being. The prefabricated and assembled comprehensive pipe gallery is simple to manufacture, the sheet-shaped components are transported and hoisted conveniently, the factory production, the quality is controllable, and the comprehensive cost is low. Compared with the concrete plate-shaped components, the construction period can be greatly reduced It is ahead of time, and basically does not affect road traffic, has a wide range of applications, and is economical and environmentally friendly. Due to the prefabricated structure, the specification and size of the box culvert can be manufactured to a super large size, and it is no longer limited by external conditions such as manufacturing and transportation, which solves the problems existing in the existing cast-in-place and overall prefabrication technology. However, due to the prefabricated and assembled sheet-like installation method, the waterproof problem of the overlapping joints of the sheet structures is particularly prominent. When the existing pipe gallery structure is deformed due to vibration and other reasons, water is prone to leak at the socket of the pipe gallery and affect the use function.

Chinese Patent Publication No.: CN105525632A discloses an assembled prefabricated comprehensive pipe gallery socket socket waterproof structure, the structure adopts five waterproof structure designs between the socket of the previous section and the socket of the next pipe section. The five waterproof structures include: water-expandable water-stop strip 1, water-expandable water-stop strip 2, elastic waterproof material injected between the two water-expandable water-stop strips, water-expandable water-stop strip 1 outer gap The elastic waterproof material is poured into the joint, and the waterproof membrane is pasted on the outer seam. This technical solution has a certain degree of advancement, but the disadvantage is that the entire seam is filled with waterproof materials, the production is relatively cumbersome, and the cost is slightly high, so it is necessary to improve.

Contents of the invention

Based on the above, the purpose of the present invention is to provide a new type of waterproof structure for the socket of the pipe gallery to improve the shortcomings of the existing waterproof structure, optimize its structure, and make it more innovative, practical and economical.

The present invention is achieved through the following technical solutions:

A prefabricated and assembled comprehensive pipe gallery socket waterproof structure, including the joint formed by the pipe gallery socket and the pipe gallery socket. The waterproof structure is composed of glue, polyethylene foam filling board, EPDM wedge-shaped sealing ring, water-swellable elastic rubber body, and self-adhesive waterproof tape.

Further, the grouting hole tube is also included, and the grouting hole tube is arranged on the socket of the pipe gallery, and its opening direction faces the inner side of the socket of the pipe gallery.

Further, the two-component sealant is JS-211 type two-component sealant, and the self-adhesive waterproof tape is EPIIR self-adhesive waterproof tape.

Further, the EPDM wedge seal ring is a kind of double-lip wedge seal ring.

Further, the opening direction of the EPDM wedge-shaped sealing ring is toward the outside of the seam.

Further, at the seam, from the outside of the seam to the inside of the seam, PCM waterproof membrane, two-component sealant, polyethylene foam filling board, EPDM wedge-shaped sealing ring, water-swellable elastic rubber Body, polyethylene foam filling board, two-component sealant, EPIIR self-adhesive waterproof tape is a waterproof structure.

Further, the PCM waterproof membrane is arranged on the outside of the seam, and the EPIIR self-adhesive waterproof tape is arranged on the inside of the seam.

Further, the thickness of the PCM waterproof membrane is 1.5-3.0 mm, and the thickness of the EPIIR self-adhesive waterproof tape is 1.5-2.0 mm.

Compared with prior art, the beneficial effect of the present invention is:

1. The EPDM wedge-shaped sealing ring adopts a double-lip design, and its wedge-shaped design has low installation resistance, which can effectively distribute the resistance of a single lip to two lips, which is more convenient for installation, and the sealing effect is longer and the time is longer; in addition , The design of the two sealing lips also solves the phenomenon that it is easy to move and roll when assembling a sealing lip. The lip height of the double-lip wedge sealing ring is designed to be 10-20% higher than the socket of the reinforced concrete jacking pipe , effective use of the rubber elastic sealing function, can play a highly permanent sealing role.

2. This structure has multiple waterproof fortifications. The outer PCM self-adhesive polymer modified asphalt waterproof membrane can not only waterproof, but also prevent plant roots from puncturing and protect the outer seam; the two-component sealant caulking is waterproof and anti-seepage Function; In addition to waterproofing and anti-seepage, the inner EPIIR self-adhesive waterproof tape can also play the role of preventing insects and rats from biting, mainly protecting the inner seam. Through the above-mentioned multiple waterproofing, the waterproof structure has a long service life and can Up to 100 years.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Fig. 1, the present invention discloses a waterproof structure for socket sockets of prefabricated and assembled integrated pipe galleries, and the following example provides a preferred embodiment.

A prefabricated and assembled comprehensive pipe gallery socket waterproof structure, including the joint formed by the pipe gallery socket and the pipe gallery socket, wherein the depth of the socket is 100-130mm, and the joint rotation angle is 1.5-2.5 degrees. At the seam, from the outside of the seam to the inside of the seam, PCM waterproof membrane 1, JS-211 type two-component sealant 2, polyethylene foam filling board 3, EPDM wedge-shaped sealing ring 4, The water-swellable elastic rubber body 5, the polyethylene foam filling board 3, the two-component sealant 2, and the EPIIR self-adhesive waterproof tape 6 constitute a waterproof structure; among them, the thickness of the PCM waterproof membrane is 1.5~3.0mm, and the The setting thickness of the EPIIR self-adhesive waterproof tape is 1.5~2.0mm.

In this embodiment, a grouting hole pipe 7 is also included, and the grouting hole pipe 7 is arranged on the socket of the pipe gallery, and its opening direction is toward the inside of the socket of the pipe gallery. On the one hand, the grouting hole pipe 7 can be used as a waterproof pressure test at the joint of the pipe joint to test the waterproof and sealing performance of the inner and outer rubber strips of the pipe joint; on the other hand, it can be used as a reserved channel for later plugging. If the deformation and settlement of the pipe gallery are too large during the use stage, which may cause local leakage, glue injection and grouting packaging can be carried out for remediation.

In this example, the JS-211 two-component sealant is a sealant improved by our company on the basis of the existing two-component sealant. The formula is composed of: 100 parts of liquid polysulfide rubber, polysulfide 10 parts of viscose resin, 80 parts of nano-calcium bicarbonate, 5 parts of phenolic resin, 8 parts of polyethylene glycol, 1.5 parts of liquid sulfur, 4.5 parts of anti-aging agent 4010NA, 3.5 parts of anti-mold agent, liquid chlorinated paraffin (flame retardant agent) 4.5 parts.

In this example, EPIIR self-adhesive waterproof tape 6 is a waterproof tape improved by our company on the basis of the existing waterproof tape technology. The formula is composed of: 100 parts of EPDM rubber, 120 parts of 235 carbon black, 50 parts of fine talcum powder, 50 parts of No. 300 paraffin oil, 1.5 parts of vulcanizing agent, 2.3 parts of accelerator, 3.5 parts of anti-aging agent, 2.5 parts of anti-mold agent, 2.2 parts of antioxidant, 1.8 parts of flame retardant, 100 parts of butyl rubber 30 parts of white oil, 10 parts of phenolic resin, and 20 parts of polyvinyl alcohol.

This structure has multiple waterproofing fortifications, and the outer PCM self-adhesive polymer modified bitumen waterproofing membrane not only has the waterproof function, but also can prevent plant roots from puncturing and protect the outer seams; the two-component sealant caulking plays the role of waterproofing and anti-seepage; In addition to waterproofing and anti-seepage, the inner EPIIR self-adhesive waterproof tape can also play the role of preventing insects and rats from biting. year.

The above description is an explanation of the present invention, not a limitation of the present invention. For the limited scope of the present invention, refer to the claims. The present invention can be modified in other forms without violating the basic concept of the present invention.

Claims (8)

1. a precast assembly pipe gallery bell and spigot waterproof construction, including the seam being made up of with piping lane bellmouth piping lane socket, It is characterized in that, being provided with by PCM waterproof roll, double-component fluid sealant at described seam crossing, polyethylene fills plate, EPDM Wedge-type seal circle, water-swellable elastic rubbery body, the water proof structure body that self-adhesion adhesive waterproof tape is constituted.

2. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, it is characterised in that also include Injected hole pipe, described injected hole pipe is arranged on piping lane socket, and its opening direction is towards the inner side of piping lane socket.

3. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1 any one, its feature exists In described double-component fluid sealant is JS-211 type bi-component fluid sealant, and described self-adhesion adhesive waterproof tape is EP II R type self-adhesion marine glue Band.

4. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, it is characterised in that described EPDM wedge-type seal circle is lips wedge-type seal circles.

5. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1, it is characterised in that described EPDM wedge-type seal circle is dehisced the outside towards seam for the direction.

6. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 1 ~ 4 any one, its feature Be, at described seam crossing, to inside seam to seam, be disposed with by PCM waterproof roll, double-component fluid sealant, Polyethylene filling plate, EPDM wedge-type seal circle, water-swellable elastic rubbery body, polyethylene filling plate, double-component are close The water proof structure body that sealing, EP II R self-adhesion adhesive waterproof tape are constituted.

7. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 6, it is characterised in that described PCM waterproof roll is arranged on the outside of seam, and described EP II R self-adhesion adhesive waterproof tape is arranged on the inner side of seam.

8. a kind of precast assembly pipe gallery bell and spigot waterproof construction according to claim 6, it is characterised in that described The thickness that arranges of PCM waterproof roll is 1.5 ~ 3.0mm, and the thickness that arranges of described EP II R self-adhesion adhesive waterproof tape is 1.5 ~ 2.0mm.