CN105350630A - Rapid infiltration and reuse technology for city rainwater - Google Patents

Abstract

The invention relates to rapid infiltration and reuse technology for city rainwater, pertaining to the field of rapid infiltration and reuse technology or city rainwater. The rapid infiltration and reuse technology comprises following steps of firstly, digging out a water seepage area and utilizing cement mortar on two sides of the water seepage area to build a brick wall, casting concrete in place at the bottom of the water seepage area, inserting wood piles into the concrete at the bottom and filling coarse sand grains and residues processed by a power station at the bottom to be aligned with the wood piles; and laying a layer of thin film on the surface, simultaneously laying straw and sludge, uniformly scattering cobblestones into sludge, laying water-permeable bricks to the surface after natural withering, utilizing river sludge to fill up the remaining part of the water seepage area, and growing plants to the surface of a processed filling area after a filling process is finished. The rapid infiltration and reuse technology for city rainwater has following beneficial effects: rainwater can rapidly infiltrate; without rainwater, groundwater evaporates in order to provide for growth of plants; operation steps are simple; and cost is low.

Description

Ooze and reuse technology under a kind of urban rainwater is quick

Technical field

The present invention relates to a kind of urban rainwater fast under ooze and reuse technology, belong to urban rainwater fast under ooze and reuse technology field.

Background technology

Because Rainfall Infiltration is intercepted, the ecological disequilibrium of Urban Hydrologic, the formation speed of city rainfall runoff and flood peak peak value, much larger than non-UrbaniZed Area, strengthen the operating load of urban sewerage and drainage system, cause Urban Flood Waterlogging problem outstanding day by day; Rainwater resource runs off in a large number, and groundwater source can not get effective self-restraint, and cause the geological disasters such as urban ground sinking, urban heat land effect is also on the rise; A large amount of pollutants that rainfall runoff carries import urban rivers and lakes through urban sewerage and drainage system, become one of the key factor of urban rivers and lakes river pollution, body eutrophication, and constitute a threat to urban rivers and lakes environmental health.Under this background, the construction of the engineerings such as simple dependence Urban Rainwater Pipe Networks and storage pond solves urban flood defence, the problems such as rainwater runoff pollution, by the Urban spatial recourses of at substantial and engineering construction operating cost, and be subject to urban space, many-sided conditionality such as urban development, and ground permeable pavement is alleviating urban flood defence and discharge pressure because of it, reduce runoff and pollutant discharge amount, regulate the temperature and humidity of urban space, improve the remarkable effect of the aspects such as the living environment of local ecological environment and edaphon, day by day by people are paid close attention to or accept.

Summary of the invention

The technical problem that the present invention mainly solves: wasted greatly for water resource after current rainwater infiltration, the rainwater that can not get down oozing then can cause the blocking of traffic, provide a kind of urban rainwater fast under ooze and reuse technology, the shale of underground mainly changes by the method, by different mud, and the interpolation of other materials, increase its rainwater infiltration, the present invention can fast by rainwater infiltration, and simultaneously when without rainwater, groundwater evaporation supplies plant growth.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention:

(1) dig a long 10 ~ 15m in highway greening district, wide 5 ~ 6m, behind the infiltration district of high 1.2 ~ 1.5m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 1 ~ 2cm, make it solidify 3 ~ 4h;

(2) after it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 3 ~ 4cm, solidify 15 ~ 25min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, every square metre is inserted 3 ~ 4, utilizes cement mortar by its firm spar stake;

(3) treat that above-mentioned concrete casting post is firmly noted, again to its underfill coarse sand granule, the thickness of filling is 30 ~ 40cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, then fill the residue after power plant process to it again, fill until flush with timber;

(4) after above-mentioned filling completes, laying a layer thickness on its surface is the film of 0.8 ~ 1mm, and lay the straw of 2 ~ 3cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 10 ~ 15cm, the cobble that particle diameter is 1 ~ 2cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 1 ~ 2kg, makes its natural air drying 1 ~ 2h;

(5) after its natural air drying, be the seepage brick of 2 ~ 3cm at its surperficial laying depth, lay 2 ~ 3 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash;

(6) after seepage brick has been laid, infiltration district remainder river sludge is filled to full, to be filled complete after, fill area surface grafting plant after treatment.

The invention has the beneficial effects as follows:

(1) the present invention can fast by rainwater infiltration, and simultaneously when without rainwater, groundwater evaporation supplies plant growth; (2) operating procedure is simple, and required cost is low.

Detailed description of the invention

First dig a long 10 ~ 15m in highway greening district, wide 5 ~ 6m, behind the infiltration district of high 1.2 ~ 1.5m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 1 ~ 2cm, make it solidify 3 ~ 4h; After it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 3 ~ 4cm, solidify 15 ~ 25min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, and every square metre is inserted 3 ~ 4, utilizes cement mortar by its firm spar stake; Treat that above-mentioned concrete casting post is firmly noted, again to its underfill coarse sand granule, the thickness of filling is 30 ~ 40cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, then fill the residue after power plant process to it again, fill until flush with timber; After above-mentioned filling completes, laying a layer thickness on its surface is the film of 0.8 ~ 1mm, and lay the straw of 2 ~ 3cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 10 ~ 15cm, the cobble that particle diameter is 1 ~ 2cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 1 ~ 2kg, makes its natural air drying 1 ~ 2h; After its natural air drying, be the seepage brick of 2 ~ 3cm at its surperficial laying depth, lay 2 ~ 3 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash; After seepage brick has been laid, infiltration district remainder river sludge has been filled to full, to be filled complete after, fill area surface grafting plant after treatment.

Example 1

First dig a long 15m in highway greening district, wide 6m, behind the infiltration district of high 1.5m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 2cm, make it solidify 4h; After it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 4cm, solidify 25min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, and every square metre is inserted 4, utilizes cement mortar by its firm spar stake; Treat that above-mentioned concrete casting post is firmly noted, then to its underfill coarse sand granule, the thickness of filling is 40cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, and then fill the residue after power plant process to it again, fill until flush with timber; After above-mentioned filling completes, laying a layer thickness on its surface is the film of 1mm, and lay the straw of 3cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 15cm, the cobble that particle diameter is 2cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 2kg, makes its natural air drying 2h; After its natural air drying, be the seepage brick of 3cm at its surperficial laying depth, lay 3 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash; After seepage brick has been laid, infiltration district remainder river sludge has been filled to full, to be filled complete after, fill area surface grafting plant after treatment.The present invention can fast by rainwater infiltration, and simultaneously when without rainwater, groundwater evaporation supplies plant growth.

Example 2

First dig a long 10m in highway greening district, wide 5m, behind the infiltration district of high 1.2m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 1cm, make it solidify 3h; After it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 3cm, solidify 15min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, and every square metre is inserted 4, utilizes cement mortar by its firm spar stake; Treat that above-mentioned concrete casting post is firmly noted, then to its underfill coarse sand granule, the thickness of filling is 30cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, and then fill the residue after power plant process to it again, fill until flush with timber; After above-mentioned filling completes, laying a layer thickness on its surface is the film of 0.8mm, and lay the straw of 2cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 10cm, the cobble that particle diameter is 1cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 1kg, makes its natural air drying 1h; After its natural air drying, be the seepage brick of 2cm at its surperficial laying depth, lay 2 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash; After seepage brick has been laid, infiltration district remainder river sludge has been filled to full, to be filled complete after, fill area surface grafting plant after treatment.The present invention can fast by rainwater infiltration, and simultaneously when without rainwater, groundwater evaporation supplies plant growth.

Example 3

First dig a long 12m in highway greening district, wide 5m, behind the infiltration district of high 1.3m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 1cm, make it solidify 3h; After it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 3cm, solidify 15min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, and every square metre is inserted 4, utilizes cement mortar by its firm spar stake; Treat that above-mentioned concrete casting post is firmly noted, then to its underfill coarse sand granule, the thickness of filling is 30cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, and then fill the residue after power plant process to it again, fill until flush with timber; After above-mentioned filling completes, laying a layer thickness on its surface is the film of 0.9mm, and lay the straw of 2.5cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 12cm, the cobble that particle diameter is 2cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 1kg, makes its natural air drying 1 ~ 2h; After its natural air drying, be the seepage brick of 3cm at its surperficial laying depth, lay 3 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash; After seepage brick has been laid, infiltration district remainder river sludge has been filled to full, to be filled complete after, fill area surface grafting plant after treatment.The present invention can fast by rainwater infiltration, and simultaneously when without rainwater, groundwater evaporation supplies plant growth.

Claims (1)

1. urban rainwater fast under ooze and a reuse technology, it is characterized in that concrete operation step is:

(1) dig a long 10 ~ 15m in highway greening district, wide 5 ~ 6m, behind the infiltration district of high 1.2 ~ 1.5m, then its both sides utilize masonry of cement mortar brick wall, and thickness is 1 ~ 2cm, make it solidify 3 ~ 4h;

(2) after it solidifies, cast-in-situ concrete bottom infiltration district, the thickness of pouring is 3 ~ 4cm, solidify 15 ~ 25min, make it be half curdled appearance, then be 5cm by radius, the high timber for 50cm is inserted in lower concrete, every square metre is inserted 3 ~ 4, utilizes cement mortar by its firm spar stake;

(3) treat that above-mentioned concrete casting post is firmly noted, again to its underfill coarse sand granule, the thickness of filling is 30 ~ 40cm, the main component of described coarse sand granule is stone, sand and earth in mass ratio 4:2:1 mix, then fill the residue after power plant process to it again, fill until flush with timber;

(4) after above-mentioned filling completes, laying a layer thickness on its surface is the film of 0.8 ~ 1mm, and lay the straw of 2 ~ 3cm simultaneously, and above straw, lay the secondary sedimentation tank of sewage treatment work mud of 10 ~ 15cm, the cobble that particle diameter is 1 ~ 2cm is sprinkled into uniformly in mud, the amount be sprinkled into is every square metre of 1 ~ 2kg, makes its natural air drying 1 ~ 2h;

(5) after its natural air drying, be the seepage brick of 2 ~ 3cm at its surperficial laying depth, lay 2 ~ 3 layers, make every block seepage brick close proximity, described seepage brick raw material are the 1:1:1:1 mixed high-voltage formation in mass ratio of cement, sand, slag, flyash;

(6) after seepage brick has been laid, infiltration district remainder river sludge is filled to full, to be filled complete after, fill area surface grafting plant after treatment.