CN106682367B - A kind of Gu courtyard ground pavement rainwater seeps the comprehensive analysis method of stagnant ability - Google Patents
A kind of Gu courtyard ground pavement rainwater seeps the comprehensive analysis method of stagnant ability Download PDFInfo
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Abstract
A kind of Gu courtyard ground pavement rainwater seeps the comprehensive analysis method of stagnant ability, belongs to the technical field of ancient courtyard ground rainwater draining analysis.Ancient courtyard ground is classified according to difference form of mating formation, successively calculates each region A1、A2……AkInfiltration rate and be saturated maximum backwater capacity, rear weight obtain the infiltration rate and saturation maximum backwater capacity of ancient courtyard ground entirety, finally obtain ancient courtyard ground pavement maximum rainwater amount of bearing, the judgment criteria of stagnant rainwater seeped as ancient courtyard ground pavement.This method can effectively improve the efficiency that China's Gu courtyard ground pavement rainwater seeps stagnant capacity calculation; guarantee is provided accurately to estimate flood control-discharge dyke ability of the ancient courtyard in the rainwater multiple phase; the integrality of the structural stability and history relic built on ancient courtyard ground and ground is protected, the selection and management for ancient courtyard ground pavement mode from now on provide important opinion.
Description
Technical field
The invention belongs to the technical fields of ancient courtyard ground rainwater draining analysis, specifically, with being related to a kind of ancient courtyard
Face rainwater of mating formation seeps the comprehensive analysis method of stagnant ability.
Background technique
Historical and cultural heritage is the crystallization of human civilization, wherein the architectural heritage component part important as its, in the world
Various countries receive more and more extensive attention.China is with a long history, and existing ancient courtyard courtyard is more important culture rarity.
It is too fast recently as climate warming, global economy fast development bring Development of Urbanization, lead to natural appearance
It changes, the area in waterproof region is significantly increased, and greenery area is constantly reduced, and changes the original air motion rule in city
Rule makes the water regime in city that significant changes occur, causes under identical condition of raining, produces afflux characteristic and very big change occurs,
Rain magnanimity increases, and peak value quickly occurs, and has also encouraged extreme weather events generation to a certain extent.Ancient courtyard ground is generally by brick
Soil design is mated formation, and surrounding has drainage ditch, and wherein courtyard ground pavement is (including at brick, gap exposed soil and non-tile work
Local exposed soil) it is of the remote past due to building, and be completely exposed in air, therefore different degrees of aging, weathering, mill occur
Phenomena such as damage and brickwork joint are excessive, eventually leads to courtyard ground relief, generates certain influence to using, and more copes with to ground strong
The weather such as rainfall bring challenges.Whenever rainfall is to the drainability on ancient courtyard ground, especially whether will appear ponding all becomes political affairs
Mansion, manager and public attention hot spot.
In recent years, sponge urban construction is like a raging fire, and one of method is exactly the ground pavement of connection and reasonable arrangement, enables ground
A part of rainfall is enough retained, while the disasters such as pre- flood-protection waterlogging, stores a part of rainwater.Therefore ancient courtyard is in addition to benefit
With outside surrounding drainage ditch discharge rainwater, if in view of ground pavement is to the stagnant ability of infiltration of rainwater and the size of ability, all
As our interested places.It is seeped by the way that the new theory of industry, ways and means are applied to ancient courtyard ground pavement rainwater
In the comprehensive analysis of stagnant ability, modern scientific detection means is recycled, explores a set of suitable ancient courtyard ground pavement rainwater
Seep the comprehensive analysis method of stagnant ability.The analysis result of this method can provide side for the repairerment for formulating science from now on and maintenance scheme
It helps, it is the work for having both scientific and technological progress meaning and cultureal value that the integrality for ancient courtyard ground, which provides safeguard,.
Summary of the invention
In order to make up the scarcity that ancient courtyard ground rainwater seeps stagnant capability analysis research, the purpose of the invention is to provide
A kind of simple, the practical ancient courtyard ground pavement rainwater of principle seeps the comprehensive analysis method of stagnant ability.
The technical scheme adopted by the invention is that a kind of Gu courtyard ground pavement rainwater seeps the comprehensive analysis method of stagnant ability.
Mainly use following steps:
Step 1: previous experiments prepare
By the ancient courtyard ground to be studied region A different with the different demarcation of purposes according to flooring mode1、A2……Ak
(k takes 1,2 ... k), the brick and exposed soil (including gap exposed soil and local exposed soil) for choosing the respective part of different zones are used as sample
Brick and experiment soil sample, carry out seepage of water to sample brick and backwater are tested, and carry out water penetration experiment to experiment soil sample；Experimental result
Show that the respective sample brick of all areas does not have seepage of water, and there is certain backwater ability, is i.e. rainwater can not be in rainfall
In lasting, through sample brick, but rainwater can be stored in inside sample brick, and the backwater energy of the respective sample brick of different zones
Power is different；Test soil sample the experimental results showed that its with water penetration, i.e., within rainfall duration, rainwater can through experiment soil sample
Into below experiment soil sample, and the experiment soil sample water permeability of different zones is different；
Step 2: after subregion, the face for the exposed soil (including gap exposed soil and local exposed soil) being calculated according to different zones
Product accounts for the infiltration rate for when testing the region exposed soil measured of the region gross area, then determines each region A1、A2……Ak
Infiltration rate；
Due to each region A1、A2……AkGround brick paving does not have so that rainwater penetrates the penetrating power of brick body, and exposed soil has
Certain water penetration, i.e. rainwater can be permeated downwards by the gap exposed soil formed after brick tile work and local exposed soil, therefore ancient
The rainwater infiltration ability of courtyard ground brick paving can be by exposed soil area occupied area domain AkThe ratio and region A of the gross areakThe infiltration of exposed soil
Ability integration determines.Finally, Area-weighted mode is used in research, is computed to illustrate different survey region A1、A2……Ak's
Infiltration ability；
(1) according to drawing, each survey region A is calculated separately using formula 1.11、A2……AkExposed soil (including gap is naked
Soil and local exposed soil) area account for the percentage of the region gross area；
In formula: λtFor exposed soil (including gap exposed soil and local exposed soil) the area accounting in certain region, StFor the exposed soil in the region
Area (the m of (including gap exposed soil and local exposed soil)2), S is the gross area (m in the region2)。
(2) contrived experiment calculates separately each survey region A using formula 1.21、A2……AkExperiment soil sample infiltration speed
Rate；And test the sample that soil sample is the part exposed soil obtained；
In formula: KtFor certain regional experiment soil sample seepage stability when rate (mL/s), Vi、Vi+1For i-th, i+ after seepage stability
The water volume (mL) that experiment soil sample appears in 1 time, ti、ti+1For the time (s) of i-th, i+1 after seepage stability；
It further can be by rate after the seepage stability of (1.2) similar formula calculating different moments or period, if flat
Infiltration rate is basicly stable constant in a certain period, it can be determined that is seepage stability.
(3) according to the calculated result of (1), (2), each survey region A is calculated separately using formula 1.31、A2……AkInfiltration
Saturating rate.
vt=λt×Kt (1.3)
In formula: vtFor the infiltration rate (mL/s) in certain region；
Step 3: after subregion, according to each region A is calculated1、A2……AkThe gross area of ground brick paving and experiment measure
Unit sample brick saturation when maximum backwater capacity, determine each region A1、A2……AkSaturation backwater capacity；
The ground brick paving of ancient courtyard cannot make rain penetration, but have certain backwater ability, a part of rain in rainfall
Amount can be rapidly absorbed into and be trapped in brick body, without forming runoff；The variant region A of field survey1、A2……AkBrick it is total
Area, each region A obtained according to experiment1、A2……AkMaximum backwater capacity when the saturation of sample brick respectively obtains each region A1、
A2……AkSaturation backwater capacity, sample brick is the sample for taking the region part brick to be tested；
(1) according to drawing, the gross area S of brick in each region is calculatedz(m2)；
(2) contrived experiment, maximum backwater when being saturated using the unit area sample brick that formula 1.4 calculates different zones
Amount；
In formula: QmaxMaximum backwater capacity (kg/m when being saturated for the unit area sample brick in certain region2), qiFor the i-th time
The quality (kg) for the water that interior sample brick is retained, SsFor surface area, that is, brick top surface area (m of the perched water table of sample brick2), T is sample
Time (h) when product brick reaches saturation when maximum backwater capacity；
(3) according to the calculated result of (1), (2), the saturation maximum backwater capacity of different zones is calculated using formula 1.5；
Qz=Qmax×Sz (1.5)
In formula: QzFor the saturation maximum backwater capacity (kg) in certain region；
4th step, comprehensive each region A1、A2……AkInfiltration rate and be saturated maximum backwater capacity, calculate and study ancient courtyard
Ground pavement maximum rainwater amount of bearing.
Each region A in ancient courtyard ground has been calculated in above each step1、A2……AkInfiltration rate and saturation it is maximum stagnant
Water, it is contemplated that any Gu courtyard ground is all formed by brick and exposed soil (including gap exposed soil and local exposed soil) combination paving, and
Different zones A1、A2……AkExposed soil infiltration rate and brick to be saturated maximum backwater capacity different.Therefore, ancient courtyard ground paving is studied
The maximum rainwater amount of bearing of dress needs while considering seep water rate and the two influence factors of the maximum backwater capacity of saturation.
(1) using the comprehensive infiltration rate of the ancient total exposed soil in courtyard ground of 1.6 weighted calculation research of formula.
In formula: v 'tFor comprehensive infiltration rate (mL/s) of the ancient total exposed soil in courtyard ground, vtjFor ancient courtyard region AjInfiltration
Rate (mL/s), λtjFor the percentage of the gross area of the exposed soil area occupied area domain Aj of ancient courtyard region Aj；
(2) the saturation water percolating capacity of the ancient total exposed soil in courtyard ground is calculated using formula 1.7；
Qt=3600 × vt′×T×ρ (1.7)
In formula: QtFor the saturation water percolating capacity (kg) of the ancient total exposed soil in courtyard ground, T is rainfall duration (h), generally takes 2, the ρ to be
Rainwater density, takes 1000kg/m3。
(3) the saturation backwater capacity of the total floor tile of ancient courtyard is calculated using formula 1.8；
In formula: Qz' for the saturation backwater capacity (kg) of the ancient total floor tile of courtyard, QzjFor ancient courtyard region AjSaturation maximum it is stagnant
Water (kg).
(4) ancient courtyard ground pavement maximum rainwater amount of bearing is calculated using formula 1.9.
Q=Qz′+Qt (1.9)
In formula: Q is ancient courtyard ground pavement maximum rainwater amount of bearing (kg).
The comprehensive analysis method that stagnant rainwater ability is seeped according to above-mentioned ancient courtyard ground pavement, by ancient courtyard ground according to difference
Form of mating formation is classified, and each region A is successively calculated1、A2……AkInfiltration rate and be saturated maximum backwater capacity, rear weight
It obtains the infiltration rate of ancient courtyard ground entirety and is saturated maximum backwater capacity, finally obtain ancient courtyard ground pavement maximum rainwater and hold
It is measured, the judgment criteria of stagnant rainwater is seeped as ancient courtyard ground pavement.It is practical that the present invention can reasonably calculate ancient courtyard ground
Rainwater seep stagnant ability, the efficiency that China's Gu courtyard ground pavement rainwater seeps stagnant capacity calculation can be effectively improved, be accurate pre-
The flood control-discharge dyke ability for estimating ancient courtyard in the rainwater multiple phase provides guarantee, protects the knot built on ancient courtyard ground and ground
The integrality of structure stability and history relic, selection and management for ancient courtyard ground pavement mode from now on provide important meaning
See.
Compared with prior art, beneficial effects of the present invention: (1) in view of the technique particularity of ancient courtyard ground pavement,
Ancient courtyard ground pavement is seeped before stagnant rainwater ability analyzes, respectively the brick to ancient courtyard ground and exposed soil (including gap
Exposed soil and local exposed soil) seepage of water, backwater tested, it is final determine the backwater to the seepage of water of exposed soil and brick into
Row research.(2) backwater of brick and the seepage of water of exposed soil have been comprehensively considered, and not for exposed soil seepage of water and brick backwater
Together, different calculations is taken, the imperfection that conventional analysis only considers single factors is avoided.(3) ancient courtyard is pressed
The infiltration of exposed soil in ancient courtyard ground is obtained by the way of weighting according to flooring mode and the different subregions that carry out for seeping backwater ability
Water speed rate.
Specific embodiment
Current embodiment to a kind of comprehensive analysis method of the stagnant rainwater of infiltration of ancient courtyard ground pavement proposed by the invention make into
The explanation of one step, but the present invention is not limited to following embodiments.
Embodiment 1
A kind of rainwater of ancient courtyard ground pavement of the invention is with seeping the predominantly ancient courtyard of comprehensive analysis method of stagnant ability
The maximum rainwater amount of bearing that face is mated formation.
By taking Beijing ancient courtyard region as an example
The maximum rainwater amount of bearing analysis of ancient courtyard ground pavement is mainly completed by the following steps: 1. being ground on ancient courtyard ground
Study carefully in region, ancient courtyard ground is divided into 4 such as square and pavement according to the difference of practical flooring mode and place of mating formation
Region A1、A2、A3、A42. choosing the respective brick of different zones and exposed soil (including gap exposed soil and local exposed soil) being used as sample brick
With experiment soil sample, seepage of water is carried out to sample brick and backwater is tested, water penetration experiment is carried out to experiment soil sample.3. experimental result
Show to test soil sample with seepage of water and sample brick has backwater, therefore the rainwater of ancient courtyard ground pavement seeps backwater rate and divides
Analysis is analyzed and researched using the backwater of the seepage of water and brick of exposed soil.
The technical scheme adopted by the invention is that a kind of Gu courtyard ground pavement seeps the comprehensive analysis method of backwater ability.It is main
To use following steps:
Step 1: previous experiments prepare.By ancient courtyard ground to be studied according to the different demarcation of flooring mode and purposes
For 4 region A1、A2、A3、A4, choose the respective brick of different zones and exposed soil (including gap exposed soil and local exposed soil) be used as sample
Product brick and experiment soil sample, carry out seepage of water to sample brick and backwater are tested, and carry out water penetration experiment to experiment soil sample.Experiment knot
Fruit shows that the respective sample brick of all areas does not have seepage of water, and has certain backwater ability, i.e. rainwater can not drop
In rain lasts, through sample brick, but rainwater can be stored in inside sample brick, and the backwater of the respective sample brick of different zones
Ability is different；Test soil sample the experimental results showed that its with water penetration, i.e., within rainfall duration, rainwater can through experiment soil
Sample enters below experiment soil sample, and the experiment soil sample water permeability of different zones is different.
Step 2: calculating separately region A after subregion1、A2、A3、A4Respective exposed soil (including gap exposed soil and part it is naked
Soil) area account for respective A1、A2、A3、A4The region gross area when tests the A measured1、A2、A3、A4The infiltration of each region exposed soil
Rate determines each region A1、A2、A3、A4Infiltration rate.
Due to each region A1、A2、A3、A4Ground brick paving does not have so that rainwater penetrates the penetrating power of brick body, and tests soil
Sample has certain water penetration, i.e. rainwater can be permeated downwards by the gap exposed soil formed after brick tile work and local exposed soil.
Therefore the rainwater infiltration ability of ancient courtyard ground brick paving can be accounted for the ratio of each region area and each by the exposed soil area in each region
The penetrating power of region exposed soil is comprehensive to be determined.Finally, Area-weighted mode is used in research, is computed to illustrate different research areas
Domain A1、A2、A3、A4Infiltration ability.
(1) according to drawing, each survey region A is calculated separately using formula 1.101、A2、A3、A4Exposed soil (including gap is naked
Soil and local exposed soil) area account for the percentage of the region gross area.
In formula: λtFor each survey region A1、A2、A3、A4Exposed soil (including gap exposed soil and local exposed soil) area accounting, St
For each survey region A1、A2、A3、A4Exposed soil (including gap exposed soil and local exposed soil) area (m2), S is each survey region
A1、A2、A3、A4The gross area (m2)。
(2) contrived experiment calculates separately each survey region A using formula 1.21、A2……AkExperiment soil sample infiltration speed
Rate；And test the sample that soil sample is the part exposed soil obtained；
In formula: KtFor certain regional experiment soil sample seepage stability when rate (mL/s), Vi、Vi+1For i-th, i+ after seepage stability
The water volume (mL) that experiment soil sample appears in 1 time, ti、ti+1For the time (s) of i-th, i+1 after seepage stability；
(3) according to the calculated result of (1), (2), A is calculated separately using formula 1.121、A2、A3、A4Four different zones
Infiltration rate.
vt=λt×Kt (1.12)
In formula: vtFor A1、A2、A3、A4The infiltration rate (mL/s) of four different zones.
1 A of table1、A2、A3、A4The infiltration rate of four different zones
Step 3: according to A is calculated1、A2、A3、A4What the gross area of four different zones ground brick pavings and experiment measured
Maximum backwater capacity when unit sample brick is saturated, determines A1、A2、A3、A4The saturation backwater capacity of four different zones.
The ground brick paving of ancient courtyard cannot make rain penetration, but have certain backwater ability, a part of rain in rainfall
Amount can be rapidly absorbed into and be trapped in brick body, without forming runoff.A on the spot1、A2、A3、A4The gross area of four different zones
(not including the area of exposed soil in the region), the A obtained according to experiment1、A2、A3、A4When the saturation of four different zones sample bricks
Maximum backwater capacity, respectively obtains A1、A2、A3、A4The saturation backwater capacity of four different zones.
(1) according to drawing, A is calculated separately1、A2、A3、A4The gross area S of the respective brick of four different zonesz(m2)。
(2) contrived experiment calculates separately A using formula 1.131、A2、A3、A4The unit sample brick of four different zones is full
With when maximum backwater capacity.
In formula: QmaxFor A1、A2、A3、A4Maximum backwater capacity when the unit area sample brick saturation of four different zones
(kg/m2), qiFor the quality (kg) for the water that sample brick in the i+1 time is retained, SsFor the surface area of the perched water table of sample brick
(m2), the time (h) when T is maximum backwater capacity when sample brick reaches saturation.
(3) according to the calculated result of (1), (2), A is calculated separately using formula 1.141、A2、A3、A4Four different zones
It is saturated maximum backwater capacity.
Qz=Qmax×Sz (1.14)
In formula: QzFor A1、A2、A3、A4The saturation maximum backwater capacity of four different zones.
2 A of table1、A2、A3、A4The saturation maximum backwater capacity of four different zones
4th step, comprehensive A1、A2、A3、A4The maximum backwater capacity of infiltration rate and saturation of four different zones, calculates research
Ancient courtyard ground pavement maximum rainwater amount of bearing.
Ancient courtyard ground A has been calculated in above each step1、A2、A3、A4The infiltration rate and saturation of four different zones
Maximum backwater capacity, it is contemplated that any Gu courtyard ground all by brick and exposed soil (including gap exposed soil and local exposed soil) combination paving and
At, and A1、A2、A3、A4It is different that exposed soil infiltration rate and the brick of four different zones are saturated maximum backwater capacity.Therefore, ancient institute is studied
The maximum rainwater amount of bearing for falling ground pavement needs while considering seep water rate and the two influence factors of the maximum backwater capacity of saturation.
(1) using the comprehensive infiltration rate of the ancient courtyard ground exposed soil of 1.15 weighted calculation research of formula.
In formula: v 'tFor comprehensive infiltration rate (mL/s) of ancient courtyard ground exposed soil, vtjFor ancient courtyard A1、A2、A3、A4Four
The infiltration rate (mL/s) of different zones, λtjFor ancient courtyard A1、A2、A3、A4The exposed soil area occupied area domain Aj's of four different zones
The percentage of the gross area.
(2) the saturation water percolating capacity of ancient courtyard ground exposed soil is calculated using formula 1.16.
Qt=3600 × vt′×T×ρ (1.16)
In formula: QtFor the saturation water percolating capacity (kg) of ancient courtyard surface soil, T is rainfall duration (h), and generally taking 2, ρ is rain
Water density takes 1000kg/m3。
(3) the saturation backwater capacity of ancient courtyard floor tile is calculated using formula 1.17.
In formula: Qz' for the saturation backwater capacity (kg) of ancient courtyard surface soil, QzjFor ancient courtyard region AjSaturation maximum it is stagnant
Water (kg).
(4) ancient courtyard ground pavement maximum rainwater amount of bearing is calculated using formula 1.18.
Q=Qz′+Qt (1.18)
In formula: Q is ancient courtyard ground pavement maximum rainwater amount of bearing (kg).
The ancient courtyard ground pavement maximum rainwater amount of bearing of table 3 calculates
The comprehensive analysis method that stagnant rainwater ability is seeped according to above-mentioned ancient courtyard ground pavement, by ancient courtyard ground according to difference
Form of mating formation is classified, and A is successively calculated1、A2、A3、A4The maximum backwater capacity of infiltration rate and saturation of four different zones, it
Rear weight obtains the infiltration rate of ancient courtyard ground entirety and is saturated maximum backwater capacity, and it is maximum to finally obtain ancient courtyard ground pavement
Rainwater amount of bearing seeps the judgment criteria of stagnant rainwater as ancient courtyard ground pavement.The present invention is with can reasonably calculating ancient courtyard
The actual rainwater in face seeps stagnant ability, can effectively improve the efficiency that China's Gu courtyard ground pavement rainwater seeps stagnant capacity calculation, be
The flood control-discharge dyke ability that ancient courtyard is accurately estimated in the rainwater multiple phase provides guarantee, protects and builds on ancient courtyard ground and ground
The integrality of the structural stability and history relic built, selection and management for ancient courtyard ground pavement mode from now on provide weight
Want opinion.
Claims (2)
1. the comprehensive analysis method that a kind of Gu courtyard ground pavement rainwater seeps stagnant ability, which comprises the following steps:
Step 1: previous experiments prepare
By the ancient courtyard ground to be studied region A different with the different demarcation of purposes according to flooring mode1、A2……Ak, choose
It is real to carry out seepage of water and backwater to sample brick as sample brick and experiment soil sample for the brick and exposed soil of the respective part of different zones
It tests, water penetration experiment is carried out to experiment soil sample；
Step 2: the when experiment that the area for the exposed soil being calculated according to different zones accounts for the region gross area is surveyed after subregion
The infiltration rate of the region exposed soil obtained, then determines each region A1、A2……AkInfiltration rate；
Area-weighted mode is used in research, is computed to illustrate different survey region A1、A2……AkInfiltration ability；
(1) according to drawing, each survey region A is calculated separately using formula 1.11、A2……AkThe area of exposed soil to account for the region total
The percentage of area；
In formula: λtFor the exposed soil area accounting in certain region, StFor the area (m of the exposed soil in the region2), S is the gross area in the region
(m2)；
(2) contrived experiment calculates separately each survey region A using formula 1.21、A2……AkExperiment soil sample infiltration rate；
And test the sample that soil sample is the part exposed soil obtained；
In formula: KtFor certain regional experiment soil sample seepage stability when rate (mL/s), Vi、Vi+1For after seepage stability when i-th, i+1
The water volume (mL) that interior experiment soil sample appears, ti、ti+1For the time (s) of i-th, i+1 after seepage stability；
It further can be by rate after the seepage stability of (1.2) similar formula calculating different moments or period, if being averaged certain
Infiltration rate is basicly stable constant in one period, it can be determined that is seepage stability；
(3) according to the calculated result of (1), (2), each survey region A is calculated separately using formula 1.31、A2……AkInfiltration speed
Rate；
vt=λt×Kt (1.3)
In formula: vtFor the infiltration rate (mL/s) in certain region；
Step 3: after subregion, according to each region A is calculated1、A2……AkThe list that the gross area of ground brick paving and experiment measure
Maximum backwater capacity when the sample brick saturation of position, determines each region A1、A2……AkSaturation backwater capacity；
The variant region A of field survey1、A2……AkThe gross area of brick, each region A obtained according to experiment1、A2……AkSample
Maximum backwater capacity when the saturation of brick respectively obtains each region A1、A2……AkSaturation backwater capacity, sample brick be take the region portion
The sample for dividing brick to be tested；
(1) according to drawing, the gross area S of brick in each region is calculatedz(m2)；
(2) contrived experiment, maximum backwater capacity when being saturated using the unit area sample brick that formula 1.4 calculates different zones；
In formula: QmaxMaximum backwater capacity (kg/m when being saturated for the unit area sample brick in certain region2), qiFor sample in the i-th time
The quality (kg) for the water that product brick is retained, SsFor surface area, that is, brick top surface area (m of the perched water table of sample brick2), T is sample brick
Time (h) when reaching saturation when maximum backwater capacity；
(3) according to the calculated result of (1), (2), the saturation maximum backwater capacity of different zones is calculated using formula 1.5；
Qz=Qmax×Sz (1.5)
In formula: QzFor the saturation maximum backwater capacity (kg) in certain region；
4th step, comprehensive each region A1、A2……AkInfiltration rate and be saturated maximum backwater capacity, calculate and study ancient courtyard ground
Mat formation maximum rainwater amount of bearing；
(1) using the comprehensive infiltration rate of the ancient total exposed soil in courtyard ground of 1.6 weighted calculation research of formula；
In formula: v 'tFor comprehensive infiltration rate (mL/s) of the ancient total exposed soil in courtyard ground, vtjFor ancient courtyard region AjInfiltration rate
(mL/s), λtjFor ancient courtyard region AjExposed soil area occupied area domain AjThe gross area percentage；
(2) the saturation water percolating capacity of the ancient total exposed soil in courtyard ground is calculated using formula 1.7；
Qt=3600 × vt′×T×ρ (1.7)
In formula: QtFor the saturation water percolating capacity (kg) of the ancient total exposed soil in courtyard ground, T is rainfall duration (h), and taking 2, ρ is rainwater density,
Take 1000kg/m3；
(3) the saturation backwater capacity of the total floor tile of ancient courtyard is calculated using formula 1.8；
In formula: Qz' for the saturation backwater capacity (kg) of the ancient total floor tile of courtyard, QzjFor ancient courtyard region AjSaturation maximum backwater capacity
(kg)；
(4) ancient courtyard ground pavement maximum rainwater amount of bearing is calculated using formula 1.9；
Q=Qz′+Qt (1.9)
In formula: Q is ancient courtyard ground pavement maximum rainwater amount of bearing (kg).
2. according to the method for claim 1, which is characterized in that exposed soil includes gap exposed soil and local exposed soil.
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| CN205449726U (en) * | 2016-03-21 | 2016-08-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Testing arrangement of cement concrete interconnected pore rate of permeating water |
| CN105868462A (en) * | 2016-03-28 | 2016-08-17 | 清华大学 | Optimization method for sponge city source control facility design |
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| CN205449726U (en) * | 2016-03-21 | 2016-08-10 | 贵州省交通规划勘察设计研究院股份有限公司 | Testing arrangement of cement concrete interconnected pore rate of permeating water |
| CN105868462A (en) * | 2016-03-28 | 2016-08-17 | 清华大学 | Optimization method for sponge city source control facility design |
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| Long-term in-situ infiltration performance of permeable concrete block pavement;Soenke Borgwardt;《8th International Conference on Concrete Block Paving》;20061231;149-160 * |
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