CN106600004A - Highway network pavement technology health condition assessment method - Google Patents

Abstract

The present invention provides a highway network pavement technology health condition assessment method. The method comprises the steps: surveying the operation age limits of all the roads with the same grade and the same pavement structure in an area and the pavement technology state parameters of each kilometer; establishing a mathematical relationship model of the pavement operation age limits and the technology state parameters, obtaining the regression equation and curve of the pavement technology state parameters, and calculating the technology state decaying values year by year and the regression pavement technology state average decaying lane mileage; performing statistics of the technology state decaying lane mileage of each kilometer and performing accumulation of the technology state decaying lane mileage of each kilometer, and obtaining the current pavement technology state decaying lane mileage; and assessing the highway network technology state health degree through comparison of the sizes of the average value and a measured value so as to provide basis for the area highway maintenance planning and decision. The highway network pavement technology health condition assessment method can predict the future usage condition of the pavement, and the predication data can be used for providing reference for the mid-long term maintenance and the planning of the pavement.

Description

A kind of network of highways pavement technique health Evaluation method

Technical field

The present invention relates to a kind of network of highways pavement technique health Evaluation method, belongs to highway maintenance planning technology with pipe A kind of reason field category, and in particular to pavement technique health Evaluation method.

Background technology

With the fast development of economic society, state's provincial highway arterial highway traffic flow rapid growth, highway maintenance and management Operating pressure is increasingly weighed, and one side highway pavement performance accelerates decay, highway maintenance demand constantly to increase；Another aspect user Raising and the expectation more and more higher congested in traffic to reducing road maintenance engineering induction to highway pavement service level requirements.It is public Road Guan Yang mechanisms must not take out substantial amounts of fund and be in good level to ensure road surface for the network of highways maintenance in region.

Due to the shadow of the factors such as age difference, volume of traffic difference, the difference of construction quality of pavement that road surface in road network is built Ring, the road surface in road network can typically be in three kinds of states：Relatively good, partial destruction, most of damage.Corresponding Countermeasures for Disposal For：Routine servicing or preventive maintenance, medium-capital overhauling, transformation or reconstruction.Obviously, at short notice disposably by the whole in road network It is unpractical that bad road is all transformed or keeped in repair.On the one hand, we are either with or without this ability, in addition, this way do not meet can The basic concept of sustainable development；3rd, it is former because being used for the maintenance on road surface without fund while keeping in repair and transforming bad road Road surface to be in relatively good state also can gradually be damaged.Therefore, the road network Countermeasures for Disposal of " bad road is preferential " is not science , only can make in road network that bad way amount is more and more, required fund is more and more.In this sense, a kind of science is explored Method, by routine servicing or preventive maintenance, medium-capital overhauling, transform or rebuild these three road surface disposal options and organically combine Come, for road network technology status optimized distribution and use fund, it should be a kind of road network maintenance management pair of sustainable development Plan.

Traditional maintenance of surface theory is " bad road is preferential " (Worst First), and typically pavement behavior drops to necessarily Level just carries out the worst section of pavement behavior in maintenance, and preferential maintenance road network to it, ignores or do not focus on road surface day The often activity such as maintenance, routine maintenance, preventive maintenance.More popular expression is " repairing for keeping is rotten, and it is rotten rotten good to repair ". Maintenance strategy under the theory is usually to carry out pavement structure reinforcement in overhaul mode to improve road surface bearing capacity, or to rebuild The mode of one new pavement structure provides the two methods of pavement structure of high-quality to improve pavement behavior.

More than it is several in terms of from the point of view of, be improve network of highways maintenance efficiency, the technology status of road network are detected and right Its health status is evaluated, and then it is the key for improving Assessment of Serviceability of Roads to take targetedly measure to carry out punishing.

The content of the invention

The technical problem to be solved in the present invention is：To improve network of highways average life, pavement usage in control road network The speed of worsening of performance, the limited maintainance fund of reasonable distribution, reducing road surface medium-capital overhauling and rebuilding needs the huge of input Funds, the present invention provides a kind of appraisal procedure of road network pavement technique health status, it is ensured that maintain road network to be in good service State.

In order to solve the above problems, the technical solution adopted in the present invention is：

A kind of network of highways pavement technique health Evaluation method, comprises the steps：

1) all roads using same levels, identical pavement structure in a certain area investigate all roads as object of statistics Run the time limit and each kilometer of pavement technique status score in road；

2) set up the numerical relationship model of the road surface operation time limit and technology status index, obtain pavement technique status score with The regression equation and curve of time；

3) the pavement technique situation decay value according to regression equation calculation year by year, takes its meansigma methods, by its road with investigation Road total kilometrage is multiplied, and obtains returning road network pavement technique situation and averagely decays track mileage

4) count the technology status decay track mileage of per kilometer of road and it is added up, obtain existing pavement technique Situation decay track mileage N_j；

5) contrastWith N_jSize, if N_jIt is more thanThen road network rate of decay is very fast, and road network technology status are poor, needs Strengthen punishment；If N_jIt is less thanThen road network rate of decay is slow, and road network technology status are partial to health, can reasonably be prevented Property maintenance.

Further, described pavement technique status score includes Pavement Condition index (PQI), pavement damage situation Index (PCI), Road surface quality index (RQI), pavement rutting depth index (RDI), pavement skid resistance condition index (SRI) and One in pavement structural strength index (PSSI) or several indexs, the codomain of indices is 0～100, and computational methods are pressed Current highway condition state standard JTG H 20-2007 are performed.

Further, the pavement technique situation decay value calculates gained by equation below：

CDP_j=100-P_j

In formula, CDP_jThe pavement technique situation decay value in-jth year, is obtained by actual measurement；

P_jThe pavement technique status score in-jth year, is obtained by regression equation calculation；

Be open to traffic the time limit during j-road evaluation.

Further, the recurrence pavement technique situation averagely decays track mileageGained is calculated by equation below：

In formula,- pavement technique the situation obtained by regression equation averagely decays track mileage；

The equivalent bicycle road mileage number of road in the Regional Road Network of l-detection；

CDP_jThe pavement technique situation decay value in '-jth year, is obtained by regression equation.

Further, the existing pavement technique situation decay track mileage N_jGained is calculated by equation below：

In formula, N_j- jth year, the pavement technique situation decay track mileage obtained by actual measurement；

l_j- and CDP_jCorresponding equivalent single lane detection mileages of transport route number.

The positive beneficial effect of the present invention：

1. the present invention provides a kind of appraisal procedure of road network pavement technique health status, is with all roads of road network in region Object of study, the prediction of its technology status is than traditional model closer to road real technology situation, more targeted.

2. using the present invention can quantify arrange preventive maintenance, routine servicing, in repair, overhaul reconstruction etc. maintenance arrange Apply, break through the passive situation of traditionally worst lane priority maintenance.

3. the road network pavement technique health Evaluation method that the present invention is provided can predict road surface in following use shape Condition, prediction data can provide reference for long-term road maintenance programming in road surface.

Description of the drawings

Fig. 1 is road network pavement technique health Evaluation method flow diagram.

Fig. 2 is the time dependent regression curve of Pavement distress.

Specific embodiment

The present invention is expanded on further with reference to embodiments, but is not intended to limit present disclosure.Embodiment is Guangzhou Local Trunk highway Class I highway, road surface is bituminous paving, and each road structure is as shown in table 1.A kind of network of highways road surface skill Art health Evaluation method, implementation steps include：

(1) all road operation time limits and each kilometer of Pavement distress PCI are investigated, 852 PCI is obtained Data, as shown in table 2.

The Guangzhou districts under city administration Trunk highway Class I highway bituminous paving Basic Information Table of table 1

The different road operation time limit Pavement distress PCI of table 2

(2) to 852 data according to road surface operation the time limit count, seek its meansigma methods, set up road surface operation the time limit with The numerical relationship model of Pavement distress PCI, obtains regression equations and song of the Pavement distress PCI with the time Line.As shown in Equation 1, the regression curve for obtaining is as shown in Figure 2 for regression equation.

In formula, PCI-Pavement distress,

Run the time limit in j- road surfaces；

(3) the technology status decay value according to regression equation calculation year by year：

CDP_j=100-P_j (2)

In formula, CDP_jThe pavement technique situation decay value in-jth year, is obtained by actual measurement；P_jThe pavement technique shape in-jth year Condition index, is obtained by regression equation calculation；Be open to traffic the time limit during j-road evaluation；And its meansigma methods is taken, by itself and investigation Road total kilometrage be multiplied, i.e., according to formula 3

Obtain returning road network pavement technique situation and averagely decay track mileageIn formula,- obtained by regression equation Pavement technique situation averagely decays track mileage；The equivalent bicycle road mileage number of road in the Regional Road Network of l-detection；CDP_j’— The pavement technique situation decay value in jth year, is obtained by regression equation.The track mileage that the present embodiment is investigated altogether is 842.36 cars Road km, obtains the track mileage that averagely decaysFor 25036.62, as shown in table 3.

Table 3 returns road network pavement technique situation and averagely decays track mileage

(4) the technology status decay track mileage of per kilometer of road is counted according to table 3 and it is added up, i.e., according to public affairs Formula 4

Obtain existing pavement technique situation decay track mileage N_j=22976, in formula, N_jIn-jth year, obtained by actual measurement Pavement technique situation decay track mileage；l_j- and CDP_jCorresponding equivalent single lane detection mileages of transport route number.

(5) contrastWith N_jSize, it is known that N_jIt is less thanThen road network rate of decay is slow, and road network technology status are relatively strong Health, can carry out rational preventive maintenance.

But for the service life road of more than 15 years, Pavement distress PCI has been less than 50, according to engineering experience Advise the transformation that carries out large repairs.

Above-mentioned specific embodiment is the invention is not limited in, those skilled in the art can accordingly make various changes, but It is any to cover within the scope of the claims with equivalent of the invention or similar change.

Claims (5)

1. a kind of network of highways pavement technique health Evaluation method, it is characterised in that comprise the steps：

1) all roads using same levels, identical pavement structure in a certain area investigate all road fortune as object of statistics Battalion's time limit and each kilometer of pavement technique status score；

2) the road surface operation time limit and the numerical relationship model of technology status index are set up, pavement technique status score is obtained with the time Regression equation and curve；

3) the pavement technique situation decay value according to regression equation calculation year by year, takes its meansigma methods, and it is total with the road of investigation Mileage is multiplied, and obtains returning road network pavement technique situation and averagely decays track mileage

4) count the technology status decay track mileage of per kilometer of road and it is added up, obtain existing pavement technique situation Decay track mileage N_j；

5) contrastWith N_jSize, if N_jIt is more thanThen road network rate of decay is very fast, and road network technology status are poor, needs to add Control strength；If N_jIt is less thanThen road network rate of decay is slow, and road network technology status are partial to health, can carry out rational preventative foster Shield.

2. a kind of network of highways pavement technique health Evaluation method according to claim 1, it is characterised in that：Described Pavement technique status score includes Pavement Condition index (PQI), Pavement distress (PCI), Road surface quality Index (RQI), pavement rutting depth index (RDI), pavement skid resistance condition index (SRI) and pavement structural strength index (PSSI) In one or several indexs, the codomain of indices is 0～100, and computational methods press current highway condition state mark Quasi- JTG H 20-2007 are performed.

3. a kind of network of highways pavement technique health Evaluation method according to claim 1, it is characterised in that the road Surface technology situation decay value calculates gained by equation below：

CDP_j=100-P_j

In formula, CDP_jThe pavement technique situation decay value in-jth year, is obtained by actual measurement；

P_jThe pavement technique status score in-jth year, is obtained by regression equation calculation；

Be open to traffic the time limit during j-road evaluation.

4. a kind of network of highways pavement technique health Evaluation method according to claim 3, it is characterised in that described time Return road surface technology situation averagely decays track mileageGained is calculated by equation below：

$\stackrel{\‾}{N}=l\×\frac{1}{n}{\mathrm{\Σ}}_{j=1}^n{\mathrm{CDP}}_j^{\′}$

In formula,- pavement technique the situation obtained by regression equation averagely decays track mileage；

The equivalent bicycle road mileage number of road in the Regional Road Network of l-detection；

CDP_jThe pavement technique situation decay value in '-jth year, is obtained by regression equation.

5. a kind of network of highways pavement technique health Evaluation method according to claim 3, it is characterised in that：It is described existing There is pavement technique situation decay track mileage N_jGained is calculated by equation below：

$N_j={\mathrm{\Σ}}_{j=1}^n{\mathrm{CDP}}_j\×l_j$

In formula, N_j- jth year, the pavement technique situation decay track mileage obtained by actual measurement；

l_j- and CDP_jCorresponding equivalent single lane detection mileages of transport route number.