Construction method of road drainage pipeline

文档序号：1553377 发布日期：2020-01-21 浏览：27次中文

阅读说明：本技术 一种道路排水管道施工方法 (Construction method of road drainage pipeline ) 是由庄楚升白升津邓巨平于 2019-09-25 设计创作，主要内容包括：本发明涉及道路排水管施工领域,针对PE本身具有一定的致癌性导致雨水循环利用的价值下降的问题,提供了一种道路排水管道施工方法,该技术方案如下：包括：S1.开挖沟槽；S2.支护沟槽；S3管道预处理：在聚乙烯管道内壁上喷涂聚丙烯组合物以形成覆盖管道内壁的隔离层；S4.管道安装；S5.基坑回填；聚丙烯组合物包括以下质量份数的组分：聚丙烯100份；蜜蜡30-40份；玻璃纤维5-8份；亚苄基丙酮1-2份；硅烷偶联剂1-2份；所述玻璃纤维的长度为1-2mm。通过对管道进行预处理,利用不含致癌物质的聚丙烯组合物覆盖管道内壁形成隔离层,减少水资源与聚乙烯管道接触,进而减少致癌的聚乙烯对水资源的影响,使得雨水通过道路排水管道排放以收集后,循环利用的价值更高。(The invention relates to the field of road drainage pipe construction, and provides a road drainage pipe construction method aiming at the problem that the value of rainwater recycling is reduced due to the fact that PE has certain carcinogenicity, wherein the technical scheme is as follows: the method comprises the following steps: s1, digging a groove; s2, supporting a groove; s3 pipeline pretreatment: spraying a polypropylene composition on the inner wall of the polyethylene pipeline to form an isolation layer covering the inner wall of the pipeline; s4, installing a pipeline; s5, backfilling a foundation pit; the polypropylene composition comprises the following components in parts by mass: 100 parts of polypropylene; 30-40 parts of beeswax; 5-8 parts of glass fiber; 1-2 parts of benzalacetone; 1-2 parts of a silane coupling agent; the length of the glass fiber is 1-2 mm. Through carrying out the preliminary treatment to the pipeline, utilize the polypropylene composition that does not contain carcinogen to cover the pipeline inner wall and form the isolation layer, reduce water resource and polyethylene pipe contact, and then reduce the influence of carcinogenic polyethylene to the water resource for the rainwater passes through road drainage pipe and discharges in order to collect the back, and cyclic utilization's value is higher.)

1. A construction method of a road drainage pipeline is characterized by comprising the following steps: the method comprises the following steps:

s1, digging a groove;

s2, supporting a groove;

s3 pipeline pretreatment, which is specifically as follows:

spraying a polypropylene composition on the inner wall of the polyethylene pipeline to form an isolation layer covering the inner wall of the pipeline;

s4, installing a pipeline;

s5, backfilling a foundation pit;

the polypropylene composition comprises the following components in parts by mass:

100 parts of polypropylene;

30-40 parts of beeswax;

5-8 parts of glass fiber;

1-2 parts of benzalacetone;

1-2 parts of a silane coupling agent;

the length of the glass fiber is 1-2 mm.

2. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

3-5 parts of magnesium trisilicate.

3. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

0.5-0.8 part of organic montmorillonite.

4. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

3-5 parts of pineapple leaf fiber;

the length of the pineapple leaf fiber is 0.1-0.2 mm.

5. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

3-5 parts of talcum powder.

6. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

3-5 parts of ceramic powder.

7. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the polypropylene composition also comprises the following components in parts by mass:

3-5 parts of hollow glass beads.

8. The construction method of a road drainage pipeline according to claim 1, wherein the construction method comprises the following steps: the preparation method of the polypropylene composition comprises the following steps:

a. heating and melting polypropylene and beeswax, and mixing uniformly to form a premix;

b. adding glass fiber, benzalacetone and a silane coupling agent into the premix, and uniformly mixing to form a mixture;

c. the mixture was extrusion pelletized to form a polypropylene composition.

Technical Field

The invention relates to the field of road drainage pipe construction, in particular to a road drainage pipe construction method.

Background

The road drainage pipe is one of the main means of road drainage, and the road drainage pipe is usually embedded in the soil below the road by adopting a plastic corrugated pipe, and the pipeline interface can adopt a hot melting method by adopting the plastic corrugated pipe, so that the operation is more convenient.

The general plastic corrugated pipe is made of PE, and the PE pipeline is very suitable because the PE has the characteristics of good low-temperature resistance, good chemical stability, small water absorption, excellent electrical insulation and the like.

However, road drainage mainly discharges rainwater, and along with social development, rainwater is a relatively clean water source, and in order to reduce water resource waste, rainwater collection and cyclic utilization are very common, but when a PE pipeline is adopted to transport water resources, as PE has a certain carcinogenic effect, the quality of water bodies is affected by the transportation of water resources such as rainwater and the like through a plastic corrugated pipe made of PE, so that the value of rainwater cyclic utilization is reduced, and therefore, space is also improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a construction method of a road drainage pipeline, which has the advantage of improving the value of rainwater recycling.

In order to achieve the purpose, the invention provides the following technical scheme:

a construction method of a road drainage pipeline comprises the following steps:

s1, digging a groove;

s2, supporting a groove;

s3 pipeline pretreatment, which is specifically as follows:

spraying a polypropylene composition on the inner wall of the polyethylene pipeline to form an isolation layer covering the inner wall of the pipeline;

s4, installing a pipeline;

s5, backfilling a foundation pit;

the polypropylene composition comprises the following components in parts by mass:

100 parts of polypropylene;

30-40 parts of beeswax;

5-8 parts of glass fiber;

1-2 parts of benzalacetone;

1-2 parts of a silane coupling agent;

the length of the glass fiber is 1-2 mm.

By adopting the technical scheme, the pipeline is pretreated, the polypropylene composition without carcinogenic substances is used for covering the inner wall of the pipeline to form the isolation layer, so that the contact between water resources and a polyethylene pipeline is reduced, the influence of carcinogenic polyethylene on the water resources is further reduced, and the rainwater is discharged through a road drainage pipeline to be collected, so that the recycling value is higher;

the polyethylene pipeline provides better chemical corrosion resistance, better shock resistance and better structural stability, so that the road drainage pipeline has better structural stability and is not easy to deform when being buried underground;

by adding the benzalacetone into the polypropylene composition, the low-temperature resistance effect of the polypropylene is better improved, so that the polypropylene composition is better suitable for cold regions, and the applicability of road drainage pipelines is wider;

the melting point of the polypropylene composition is reduced by adding the beeswax into the polypropylene composition, so that the polyethylene pipeline is not easy to melt or soften due to overheating of the polypropylene composition when the polypropylene composition is sprayed on the inner wall of the polyethylene pipeline by a hot melting method, and the quality of the polyethylene pipeline is better maintained;

the glass fiber is added into the polypropylene composition to better reinforce the polypropylene composition, compensate the strength loss generated after the beeswax is added into the polypropylene composition, and improve the structural stability of the isolation layer;

by adding the silane coupling agent into the polypropylene composition, the connection stability of the glass fiber and the polypropylene is effectively improved, so that the effect of reinforcing the polypropylene by the glass fiber is better.