阅读说明：本技术 市政道路施工方法 (Municipal road construction method ) 是由 李文栋 吴少君 陈美娟 于 2019-08-28 设计创作，主要内容包括：本发明涉及市政道路技术领域,针对道路下方的土壤泡水过度导致土壤的结构强度下降,可能导致道路坍塌的问题,提供了一种市政道路施工方法,该技术方案如下：包括：S1.基坑开挖；S2.铺设基层；S3.铺设垫层；S4.铺设面层：S41.铺设聚氨酯面层；S42.铺设沥青面层；S43.铺设混凝土面层；混凝土面层由混凝土浆液浇注而成；混凝土浆液包括以下质量份数的组分：硅酸盐水泥100份；粗集料300-400份；细集料150-200份；聚氨酯胶黏剂100-150份；硅烷偶联剂5-10份；水90-110份。通过面层包括聚氨酯面层、沥青面层以及混凝土面层,利用聚氨酯面层提供较好的防水性,使得路面的水不易下渗至垫层,减少对道路底部土壤基础的影响,保持道路底部土壤结构稳定,使得道路较为稳定不易坍塌。(The present invention relates to town road technical fields, excessively the structural strength of soil are caused to decline for the problem that the soil below road is soaked, may cause road collapsing, provide a kind of municipal road construction method, the technical solution is as follows: including: S1. excavation of foundation pit；S2. it is laid with base；S3. it is laid with bed course；S4. be laid with surface layer: S41. is laid with polyurethane cover；S42. asphalt surface layer；S43. it is laid with concrete topping；Concrete topping is poured by concrete slurry；Concrete slurry includes the component of following mass fraction: 100 parts of portland cement；300-400 parts of coarse aggregate；150-200 parts of fine aggregate；100-150 parts of adhesive for polyurethane；5-10 parts of silane coupling agent；90-110 parts of water.It include polyurethane cover, asphalt surface course and concrete topping by surface layer, preferable waterproofness is provided using polyurethane cover, so that the water on road surface is not easy lower seep to bed course, reduce the influence to road bottom soil basis, it keeps road bottom soil texture to stablize, is not easy to collapse so that road is relatively stable.)

1. a kind of municipal road construction method, it is characterized in that: the following steps are included:

S1. excavation of foundation pit；

S2. it is laid with base；

S3. it is laid with bed course；

S4. it is laid with surface layer, comprising:

S41. it is laid with polyurethane cover；

S42. asphalt surface layer；

S43. it is laid with concrete topping；

The concrete topping is poured by concrete slurry；

The concrete slurry includes the component of following mass fraction:

100 parts of portland cement；

300-400 parts of coarse aggregate；

150-200 parts of fine aggregate；

100-150 parts of adhesive for polyurethane；

5-10 parts of silane coupling agent；

90-110 parts of water.

2. municipal road construction method according to claim 1, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

15-20 parts of glass fibre；

The length of the glass fibre is 1-2mm.

3. municipal road construction method according to claim 2, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

3-5 parts of organo montmorillonite.

4. municipal road construction method according to claim 3, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

5-10 parts of zircon flour.

5. municipal road construction method according to claim 4, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

1,2,3,10b- 0.2-0.5 parts of tetrahydro fluoranthene.

6. municipal road construction method according to claim 1, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

10-15 parts of nano-lotus leaf powder.

7. municipal road construction method according to claim 1, it is characterized in that: the concrete slurry further includes following matter Measure the component of number:

30-40 parts of ethyl alcohol.

8. municipal road construction method according to claim 1, it is characterized in that: the preparation method of the concrete slurry is such as Under:

A. mixed Portland cement and water are to form cement grout；

B. silane coupling agent, adhesive for polyurethane are added in cement grout, stirs evenly to form pre-composition；

C. coarse aggregate, fine aggregate are added in pre-composition, stirs evenly to form concrete slurry.

Technical field

The present invention relates to town road technical fields, more particularly, to a kind of municipal road construction method.

Background technique

Town road is one of Urban Transportation component part, and as city occurs, road is more and more, road covering Area it is increasing.

Path link can be seeped frequently with concrete or pitch as road surface, general concrete road surface and bituminous pavement Water, in torrential rain, in fact it could happen that a large amount of moisture penetrates into below road, is usually the soil of soil compaction below road Base may cause that the soil below road is soaked excessively to cause the structural strength of soil to decline if a large amount of moisture persistently penetrates into, Lead to the stability decline for supporting road, and then may cause road collapsing, therefore there are also improve space.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of municipal road construction method, have The advantages of stable structure.

To achieve the above object, the present invention provides the following technical scheme that

A kind of municipal road construction method, comprising the following steps:

S1. excavation of foundation pit；

S2. it is laid with base；

S3. it is laid with bed course；

S4. it is laid with surface layer, comprising:

S41. it is laid with polyurethane cover；

S42. asphalt surface layer；

S43. it is laid with concrete topping；

The concrete topping is poured by concrete slurry；

The concrete slurry includes the component of following mass fraction:

100 parts of portland cement；

300-400 parts of coarse aggregate；

150-200 parts of fine aggregate；

100-150 parts of adhesive for polyurethane；

5-10 parts of silane coupling agent；

90-110 parts of water.

It include polyurethane cover, asphalt surface course and concrete topping, benefit by surface layer by using above-mentioned technical proposal Preferable waterproofness is provided with polyurethane cover, so that the water on road surface is not easy lower infiltration to bed course, is reduced to road bottom soil base The influence of plinth keeps road bottom soil texture to stablize, is not easy to collapse so that road is relatively stable；

Meanwhile earthquake shock is preferably absorbed using the elastic deformation of polyurethane, so that when an earthquake occurs, road deck is not It is easy to crack, reduce the influence to driving；

Preferable viscoplasticity is provided by polyurethane cover and asphalt surface course cooperation simultaneously, so that road will not be really up to the mark, row Vehicle is more comfortable；

Make road surface flatness higher by concrete topping, so that running speed can be higher, reduces to high speed row The influence for sailing vehicle further increases driving comfort level；

By the way that adhesive for polyurethane is added in concrete slurry, coarse aggregate and thin collection are penetrated into using adhesive for polyurethane In gap between material, so that the impermeability of concrete topping is preferable, so that moisture is not easy to penetrate into ground through concrete topping Under, it reduces a large amount of rainwater and penetrates into the case where road bottom soil causes resistance of soil to decline, improve road stability；

By the way that silane coupling agent is added in concrete slurry, so that adhesive for polyurethane is easier in concrete slurry It is uniformly dispersed, while it is more stable that concrete topping is connect with asphalt surface course, while concrete topping being made to seep pitch It connect after surface layer with polyurethane cover relatively stable.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

15-20 parts of glass fibre；

The length of the glass fibre is 1-2mm.

By using above-mentioned technical proposal, by the way that glass fibre is added in concrete slurry, so that glass fibre is filled Into the gap between coarse aggregate and fine aggregate, concrete is further reduced while using glass fiber-reinforced concrete Impervious effect is improved in gap.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

3-5 parts of organo montmorillonite.

By using above-mentioned technical proposal, by the way that organo montmorillonite is added, pressed from both sides using the platy layer structure of organo montmorillonite Glass fibre is held, so that organo montmorillonite forms node, so that glass fibre is more likely formed netted, reinforcing effect is preferable.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

5-10 parts of zircon flour.

By using above-mentioned technical proposal, by the way that zircon flour, preferably reinforcing concrete is added, so that the resistance to compression of concrete Intensity rises, so that the structural stability of concrete topping is more preferably.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

1,2,3,10b- 0.2-0.5 parts of tetrahydro fluoranthene.

By using above-mentioned technical proposal, by the way that 1,2,3,10b- tetrahydro fluoranthene are added in concrete slurry, so that mixed Solidifying soil paste liquid forms the freezing tolerance enhancing of concrete structure, so that concrete topping is not easy bursting by freezing.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

10-15 parts of nano-lotus leaf powder.

By using above-mentioned technical proposal, by the way that nano-lotus leaf powder is added, filled to coarse aggregate, carefully using nano-lotus leaf powder In gap between gathering materials, the gap of further fill concrete surface layer, since lotus leaf powder is hydrophobic material, so that concrete surface More preferably, impervious effect is preferable for the hydrophobicity of layer.

The present invention is further arranged to: the concrete slurry further includes the component of following mass fraction:

30-40 parts of ethyl alcohol.

So that ethyl alcohol is mixed with water, and then make water using ethyl alcohol by the way that ethyl alcohol is added by using above-mentioned technical proposal Freeze point depression, not-easy-to-freeze, while making 1,2,3,10b- tetrahydro fluoranthene are readily dispersed in ethyl alcohol and then are easy in coagulation It is uniformly dispersed in soil paste liquid.

The present invention is further arranged to: the concrete slurry the preparation method is as follows:

A. mixed Portland cement and water are to form cement grout；

B. silane coupling agent, adhesive for polyurethane are added in cement grout, stirs evenly to form pre-composition；

C. coarse aggregate, fine aggregate are added in pre-composition, stirs evenly to form concrete slurry.

By using above-mentioned technical proposal, first mixed silanes coupling agent, adhesive for polyurethane and cement grout, so that silicon Alkane coupling agent, adhesive for polyurethane are easily dispersed uniformly, reduce coarse aggregate, fine aggregate leads to silane coupling agent, poly- ammonia after being added The uneven situation of ester adhesive dispersion, guarantees the quality of concrete slurry, and then guarantee the quality of concrete topping.

In conclusion the invention has the following advantages:

1. include polyurethane cover, asphalt surface course and concrete topping by surface layer, using polyurethane cover provide compared with Good waterproofness, so that the water on road surface is not easy lower seep to bed course, influence of the reduction to road bottom soil basis, holding road bottom Portion's soil texture is stablized, and is not easy to collapse so that road is relatively stable；

2. by the way that 1,2,3,10b- tetrahydro fluoranthene are added in concrete slurry, so that concrete slurry forms concrete knot The freezing tolerance of structure enhances, so that concrete topping is not easy bursting by freezing；

3. being not easy to tie so that ethyl alcohol is mixed with water, and then makes the freeze point depression of water using ethyl alcohol by the way that ethyl alcohol is added Ice, while making 1,2,3,10b- tetrahydro fluoranthene are readily dispersed in ethyl alcohol and then are easy to be uniformly dispersed in concrete slurry.

Detailed description of the invention

Fig. 1 is the flow diagram of municipal road construction method in the present invention；

Fig. 2 is the flow diagram that surface layer is laid in the present invention.

Specific embodiment

With reference to the accompanying drawings and embodiments, invention is further described in detail.

In following embodiment and comparative example:

The China Resources cement PO42.5R normal silicate water that portland cement is sold using the moist building materials Co., Ltd of Dongguan City Mud；

The rubble that coarse aggregate uses Hebei Ke Xu building materials Co., Ltd to sell；

The river sand that fine aggregate uses eight smelting engineering Industrial Co., Ltd., Shenzhen to sell；

Adhesive for polyurethane is using the sale of Shanghai Hao Yu Chemical Co., Ltd. without alveolitoid dual-component polyurethane adhesive HY813；

The silane resin acceptor kh-550 that silane coupling agent uses Zhong Jie Chemical Industry Science Co., Ltd in Guangzhou to sell；

The glass fibre that glass fibre uses Condar husband's new material Science and Technology Ltd. in Jiangsu to sell

The organo montmorillonite that organo montmorillonite uses Guangzhou Ze Dan deer trade Co., Ltd to sell；

The zircon flour that zircon flour uses Lingshou County Zhan Teng mineral products processing factory to sell；

1,2,3, the 10b- tetrahydro fluoranthene that 1,2,3,10b- tetrahydro fluoranthene uses ethyl Chemical Co., Ltd. in Shanghai to sell；

The lotus leaf powder grinding that nano-lotus leaf powder is sold by Xuzhou the Nature Food Co., Ltd；

The dehydrated alcohol that ethyl alcohol uses Dongguan City Run Hui Chemical Industry Science Co., Ltd to sell.