A kind of embankment transverse drainage construction methodTechnical field
The present invention relates to embankment drainage system field, and in particular to highway pavement occur pit, cracking, differential settlement,It is a kind of without excavating during the phenomenons such as the rainwater that fracture and the rainwater in embankment, capillary water and median strip can not be drained completelyAnd the embankment transverse drainage construction method that can be recycled.
Background technology
With the fast development continued to develop with traffic science technology of communication, the quality and quantity of highway is all being carriedHeight, while also increasingly pay attention to the drainage works of highway, the also more and more higher of the requirement to it.And traditional roadbed transverse drainageFacility, is the setting transverse drainage duct at roadbed top, to discharge the infiltration of median strip collected, this drainage pattern withoutMethod solves to pass through the moisture that median strip, earth shoulder, side slope etc. have been seeped into inside embankment, can not also discharge wet soft section roadCapillary water in dike；Also there is the push pipe mode using no-dig technique to construct now, draining effect duration after draining, but its constructionShort, often the water after the time of 1 year or so in drainpipe just can not discharge the drainpipe, it is necessary to more renew, cost due to blockingIt can therewith increase, also increase the workload of road maintenance workman.
The content of the invention
There is provided a kind of without excavating and recyclable making it is an object of the invention to overcome the deficiencies in the prior artEmbankment transverse drainage construction method.
The technical proposal of the invention is realized in this way：
A kind of embankment transverse drainage construction method, it is characterised in that construction method is as follows：
Step one）, construction material prepare：Construction machinery includes dry drilling machine, generating set, rig traveling branch frame railRoad, drill bit, auger stem, soakaway trench, three-dimensional porous resin filter element, mixing water, PC32.5 bagged cements, medium grained sand, according toCheck evaluation criterion, is detected to construction material, carries out aperture record, is bored before PVC-U pipes move into job site thereonGo out the hole of " product " font or " rice " font, aperture is 2.5mm, and infiltration is played in whole work progress；Wherein, described inspectionThe qualified examining report and ocular estimate that the third party for testing evaluation criteria to be provided by manufacturer goes out evidence are examined, and described three-dimensional is moreHole resin filter element is made up of plastic core body outer wrap filter cloth and has filtering function；
Step 2）, the inspection of the scene of a crime：The inspection of the scene of a crime is carried out before construction, embankment moisture content is detected, the moisture content of analysis embankment isThe no optimum moisture content regional higher than detection and " disease " degree for observing road surface, described optimum moisture content represent soil in maximumIts corresponding moisture content during dry density, is the ratio of the weight with the weight of moisture in soil Yu dry ground particle, uses percentage tableShow；Described road surface " disease " is seriously road surface long-term existence frost boiling phenomenon or 0.5cm~1cm crack, pit occurs；
Step 3）, positioning：According to step one）The analysis of middle embankment moisture content and the observation of road surface " disease ", it is determined that constructionLocation, the position of soakaway trench, if embankment moisture content is higher than 60% -75% and the road surface " disease " of the optimum moisture content in detection areaSeriously, then soakaway trench every setting horizontal 20m together；If embankment moisture content higher than the regional optimum moisture content of detection 60%-75% and without road surface " disease ", then soakaway trench every setting horizontal 30m -50m together；
Step 4）, it is in place：Construction machinery needed for construction is stopped in place, the mechanical car that will be loaded with hanging device stopsThe construction point determined is leaned against, mechanical kickstand is fixed, starts loop wheel machine, rig traveling bracket track is lifted to the road chosenRoadside Po Chu, and rigging up traveling bracket track, the horizontal fix bar of rig traveling bracket track are pinned with latch closure, in rig rowThe both sides for entering bracket track hit real upper silk with drill rod screw rod, prevent that rig traveling work progress medium-height trestle track from occurring tilting, shakingIt is dynamic, finally with horizon rule to rig traveling bracket track it is horizontal, vertically carry out leveling；
Rig lays steady in place, and the drilling rod used by rig arranges placement, soakaway trench, three-dimensional porous resin filter element by numberIt is smooth to place, meanwhile, generating set, drill bit, the supporting placement of drilling rod of numbering, borehole trajectory are fixed；
Step 5）, drilling：Drill bit is installed, drilling rod in order of numbers is installed, starter-generator group trial operation rig,Rig normal operation then starts in construction, work progress every 5min-10min cleanings once miscellaneous soil, and tight in work progressTaboo is added water, it is to avoid roadbed is soaked by water, and structure is destroyed, wherein described drill bit is D90mm drill bit；
Step 6）, soakaway trench, three-dimensional porous resin filter element configuration：According to soakaway trench selected in advance from three-dimensional porousResin filter element, internal diameter small 10mm-20mm of the diameter than soakaway trench of three-dimensional porous resin filter element, three-dimensional porous resin filter element is includedIn in soakaway trench, and length is identical with infiltration length of tube；
Step 7）, install soakaway trench, three-dimensional porous resin filter element：Soakaway trench, three-dimensional are selected into hole length according to drilling rodPorous resin filter core, installs the soakaway trench of a caliber caliber bigger than soakaway trench at away from hole mouthful 0.5m, wherein, described infiltrationThe pipe for D90mm or D110mm is managed, the pipe of a corresponding big caliber is D100mm or D120mm pipe, the pipe work of a big caliberFor the sealer between hole and soakaway trench, by soakaway trench jacking hole；
Step 8）, closing：Hole is made into Seal treatment with mortar or C15 concretes；Wherein, the proportioning of every cube of mortar isCement：Sand：Water=242：1655：270, the proportioning of every cube of C15 concretes is cement：Sand：Water：Stone=185：247：768：1200；
Step 9）, cleaning job site：After hole closing terminates, the construction rubbish of cleaning job site, dismounting machinery,Bracket track, is moved to next hole position and continues to construct；
Step 10）, embankment moisture content is detected after two weeks to one month again, such as moisture content is less than the optimal of detection area and containedWater rate, then engineering terminate；Optimum moisture content such as moisture content higher than detection area, then according to step 2）Again continue with.
Step one）Described in medium grained sand for particle diameter be more than 0.25mm granular mass exceed gross mass 50% sand.
Step one）Described in mixing water be drinking water.
The positive effect of the present invention is：1st, have a wide range of application, filled out suitable for Expressway Embankment, median strip and heightThe national highway and provincial highway of side；
2nd, easy construction, the cycle is short；Traditional drainage construction, which sets up support with steel pipe, needs 2h, and bracket track integration is onlyNeed 55min；Total engineering time shortens 1.5h than conventional construction method；
3rd, traffic will not be blocked, greenery patches vegetation is not destroyed；
4th, engineering cost is low, and three-dimensional porous resin filter element can filter the impurity in draining, reaches permanence operation, whenBetween longer cost advantage it is more obvious；And in traditional drainage and construction method, the steel pipe for setting up support weares and teares meeting constantly for a long timeReduce, the congestion of tubing all can be cost increase.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
As shown in figure 1, a kind of embankment transverse drainage construction method, it is characterised in that construction method is as follows：
Step one）, construction material prepare：Construction machinery includes dry drilling machine, generating set, rig traveling branch frame railRoad, drill bit, auger stem, soakaway trench, three-dimensional porous resin filter element, mixing water, PC32.5 bagged cements, medium grained sand, mixIt is drinking water with water, medium grained sand is 50% sand of the granular mass more than gross mass that particle diameter is more than 0.25mm, according to test evaluationStandard, is detected to construction material, carries out aperture record, and " product " word is got out thereon before PVC-U pipes move into job siteThe hole of type or " rice " font, aperture is 2.5mm, and infiltration is played in whole work progress；Wherein, described test evaluation markStandard is examined for the qualified examining report and ocular estimate that the third party that is provided by manufacturer goes out evidence, and described three-dimensional porous resin is filteredCore is made up of plastic core body outer wrap filter cloth and has filtering function；
Step 2）, the inspection of the scene of a crime：The inspection of the scene of a crime is carried out before construction, embankment moisture content is detected, the moisture content of analysis embankment isThe no optimum moisture content regional higher than detection and " disease " degree for observing road surface, described optimum moisture content represent soil in maximumIts corresponding moisture content during dry density, is the ratio of the weight with the weight of moisture in soil Yu dry ground particle, uses percentage tableShow；Described road surface " disease " is seriously road surface long-term existence frost boiling phenomenon or 0.5cm~1cm crack, pit occurs；
Step 3）, positioning：According to step one）The analysis of middle embankment moisture content and the observation of road surface " disease ", it is determined that constructionLocation, the position of soakaway trench, if embankment moisture content is tight higher than 60% -75% and the road surface " disease " of the regional optimum moisture content of detectionWeight, then soakaway trench is every one of setting horizontal 20m；If 60% -75% of embankment moisture content higher than the regional optimum moisture content of detectionAnd without road surface " disease ", then soakaway trench is every one of setting horizontal 30m -50m；
Step 4）, it is in place：Construction machinery needed for construction is stopped in place, the mechanical car that will be loaded with hanging device stopsThe construction point determined is leaned against, mechanical kickstand is fixed, starts loop wheel machine, rig traveling bracket track is lifted to the road chosenRoadside Po Chu, and rigging up traveling bracket track, the horizontal fix bar of rig traveling bracket track are pinned with latch closure, in rig rowThe both sides for entering bracket track hit real upper silk with drill rod screw rod, prevent that rig traveling work progress medium-height trestle track from occurring tilting, shakingIt is dynamic, finally with horizon rule to rig traveling bracket track it is horizontal, vertically carry out leveling；
Rig lays steady in place, and the drilling rod used by rig arranges placement, soakaway trench, three-dimensional porous resin filter element by numberIt is smooth to place, meanwhile, generating set, drill bit, the supporting placement of drilling rod of numbering, borehole trajectory are fixed；
Step 5）, drilling：Drill bit is installed, drilling rod in order of numbers is installed, starter-generator group trial operation rig,Rig normal operation then starts in construction, work progress every 5min-10min cleanings once miscellaneous soil, and tight in work progressTaboo is added water, it is to avoid roadbed is soaked by water, and structure is destroyed, wherein described drill bit is D90mm drill bit；
Step 6）, soakaway trench, three-dimensional porous resin filter element configuration：According to soakaway trench selected in advance from three-dimensional porousResin filter element, internal diameter small 10mm-20mm of the diameter than soakaway trench of three-dimensional porous resin filter element, three-dimensional porous resin filter element is includedIn in soakaway trench, and length is identical with infiltration length of tube；
Step 7）, install soakaway trench, three-dimensional porous resin filter element：Soakaway trench, three-dimensional are selected into hole length according to drilling rodPorous resin filter core, installs the pipe of a caliber caliber bigger than soakaway trench at away from hole mouthful 0.5m, wherein, described soakaway trench isD90mm or D110mm pipe, the pipe of a corresponding big caliber is D100mm or D120mm pipe, and the pipe of a big caliber is used as holeSealer between hole and soakaway trench, by soakaway trench jacking hole；
Step 8）, closing：Hole is made into Seal treatment with mortar or C15 concretes；Wherein, the proportioning of every cube of mortar isCement：Sand：Water=242：1655：270, the proportioning of every cube of C15 concretes is cement：Sand：Water：Stone=185：247：768：1200；
Step 9）, cleaning job site：After hole closing terminates, the construction rubbish of cleaning job site, dismounting machinery,Bracket track, is moved to next hole position and continues to construct；
Step 10）, embankment moisture content is detected after two weeks to one month again, such as moisture content is less than the optimal of detection area and containedWater rate, then engineering terminate；Optimum moisture content such as moisture content higher than detection area, then according to step 2）Again continue with.