CN105256684A - Embankment transverse draining construction method - Google Patents

Abstract

The invention relates to the embankment draining engineering field, and concretely relates to an embankment transverse draining construction method without excavation and being capable of recycling. The method can be used when road pavements have phenomena of pits, cracks, nonuniform settlement, fracture, rainwater in an embankment, capillary water and rainwater which cannot be drained in a medial strip. According to an embankment water content and disease degree, a position of a water seepage pipe is determined, drilling is carried out, and a water seepage pipe is installed. A three-dimensional porous resin filter core is arranged in the water seepage pipe, a hole opening is sealed, the scene is cleaned after construction, and the embankment water content is monitored again after a period of time. The method is advantaged by simple construction, short cycle and low engineering cost.

Description

A kind of embankment transverse drainage construction method

Technical field

The present invention relates to embankment drainage works field, be specifically related to highway pavement when there is the phenomenons such as the rainwater that rainwater in hole groove, be full of cracks, differential settlement, fracture and embankment, capillary water and median strip can not drain completely, a kind of without the need to excavation and the embankment transverse drainage construction method that can be recycled.

Background technology

Along with the development of communication and the fast development of traffic science technology, the quality and quantity of highway, all in raising, is also more and more paid attention to the drainage works of highway simultaneously, also more and more higher to its requirement.And traditional roadbed transverse drainage facility, that transverse drainage duct is set at roadbed top place, to discharge the infiltration of the median strip collected, this drainage pattern cannot solve the moisture being seeped into embankment inside by median strip, earth shoulder, side slope etc., also cannot discharge the capillary water in the embankment of wet soft section; Also have now and adopt that the push pipe mode of no-dig technique is constructed, draining, but the drainage effect duration is short after its construction, water often after time of about 1 year in gutter is just because blocking cannot be discharged, need the gutter more renewed, cost can increase thereupon, also increases the workload of road maintenance workman.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art and provide a kind of without the need to excavating and the embankment transverse drainage construction method that can be recycled.

Technical scheme of the present invention is achieved in that

A kind of embankment transverse drainage construction method, it is characterized in that, construction method is as follows:

Step one), construction material prepares: construction machinery comprises dry drilling machine, generating set, rig advance bracket track, drill bit, auger stem, soakaway trench, three-dimensional porous resin filter element, mixing water, PC32.5 sacked cement, medium grained sand, according to check evaluation criterion, construction material is detected, carry out aperture record, the hole of " product " font or " rice " font is got out thereon before job site moved into by PVC-U pipe, aperture is 2.5mm, plays infiltration effect in whole work progress; Wherein, described check evaluation criterion goes out the qualified examining report of certificate and ocular estimate inspection for the third party provided by manufacturer, and described three-dimensional porous resin filter element wraps up filter cloth by plastic core external body and forms and have filtering function;

Step 2), field investigation: carry out field investigation before construction, detect embankment moisture content, whether the moisture content analyzing embankment observes " disease " degree on road surface higher than the optimum moisture content detecting area, described optimum moisture content represents soil its corresponding moisture content when maximum dry density, be the ratio of the weight of weight and the dry ground particle divided with water in soil, represent with percentage; Described road surface " disease " is seriously road surface long-term existence frost boiling phenomenon or crack, the hole groove occurring 0.5cm ~ 1cm;

Step 3), location: according to step one) in the analysis of embankment moisture content and the observation of road surface " disease ", determine the position of construction site, soakaway trench, if embankment moisture content higher than detect area optimum moisture content 60%-75% and road surface " disease " is serious, then soakaway trench every 20m transverse direction setting together; If embankment moisture content higher than detect regional optimum moisture content 60%-75% and without road surface " disease ", then soakaway trench every 30m-50m transverse direction setting together;

Step 4), in place: the construction machinery needed for construction is stopped in place, the mechanical car being mounted with hanging device is rested in the construction point determined, fix mechanical car's support, start loop wheel machine, bracket track of being advanced by rig works the road slope place winching to and choose, the bracket track and rigging up is advanced, pin rig with latch closure to advance the horizontal fixed bar of bracket track, rig advance the both sides drill rod screw rod of bracket track hit real on silk, prevent rig advance work progress medium-height trestle track occur tilt, rock, finally with spirit level, rig to be advanced the transverse direction of bracket track, vertically carry out leveling,

Rig is laid steadily in place, and rig drilling rod used arranges placement, soakaway trench, the smooth placement of three-dimensional porous resin filter element by number, meanwhile, the supporting placement of drilling rod of generating set, drill bit, numbering, borehole trajectory is fixed;

Step 5), boring: install drill bit, drilling rod by number order is installed, starter-generator group trial run rig, rig normal operation then starts construction, every 5min-10min cleaning once assorted soil in work progress, and forbid in work progress to add water, avoid roadbed to be subject to water soaking, structure is destroyed, and wherein said drill bit is the drill bit of D90mm;

Step 6), the configuration of soakaway trench, three-dimensional porous resin filter element: select three-dimensional porous resin filter element according in advance selected soakaway trench, the diameter 10mm-20mm less of the internal diameter of soakaway trench of three-dimensional porous resin filter element, invest in soakaway trench in three-dimensional porous resin filter element, and length is identical with soakaway trench length;

Step 7), soakaway trench, three-dimensional porous resin filter element are installed: select soakaway trench, three-dimensional porous resin filter element according to the one-tenth hole length of drilling rod, the soakaway trench of a caliber caliber larger than soakaway trench is being installed apart from hole mouth 0.5m place, wherein, described soakaway trench is the pipe of D90mm or D110mm, the pipe of a corresponding large caliber is the pipe of D100mm or D120mm, the pipe of this large caliber as the sealer between hole and soakaway trench, by soakaway trench jacking hole;

Step 8), close: with mortar or C15 concrete, hole is made Seal treatment; Wherein, the proportioning of the mortar of every cube is cement: sand: water=242:1655:270, and the proportioning of the C15 concrete of every cube is cement: sand: water: stone=185:247:768:1200;

Step 9), cleaning job site: hole close terminate after, cleaning job site construction rubbish, remove machinery, bracket track, move to next position, hole continue construction;

Step 10), two after thoughtful one month, again detect embankment moisture content, as moisture content is less than the optimum moisture content detecting area, then engineering terminates; If moisture content is higher than the optimum moisture content detecting area, then according to step 2) again continue process.

Step one) described in medium grained sand be the sand that granular mass that particle diameter is greater than 0.25mm exceedes 50% of gross mass.

Step one) described in mixing water be drinking water.

Good effect of the present invention is: 1, applied range, is applicable to Expressway Embankment, the national highway of median strip and high roadbed and provincial highway;

2, easy construction, the cycle is short; Support set up by traditional drainage construction steel pipe needs 2h, and bracket track integration only needs 55min; Total engineering time shortens 1.5h than conventional construction method;

3, can not traffic be blocked, not destroy greenery patches vegetation;

4, engineering cost is low, and three-dimensional porous resin filter element can filter the impurity in draining, reaches permanence operation, and the time, longer cost advantage was more obvious; And in traditional drainage and construction method, set up the steel pipe wearing and tearing meeting constantly minimizing for a long time of support, blocking up of tubing can be all that cost increases.

Accompanying drawing explanation

Fig. 1 is process chart of the present invention.

Detailed description of the invention

As shown in Figure 1, a kind of embankment transverse drainage construction method, it is characterized in that, construction method is as follows:

Step one), construction material prepares: construction machinery comprises dry drilling machine, generating set, rig is advanced bracket track, drill bit, auger stem, soakaway trench, three-dimensional porous resin filter element, mixing water, PC32.5 sacked cement, medium grained sand, mixing water is drinking water, medium grained sand is the sand that granular mass that particle diameter is greater than 0.25mm exceedes 50% of gross mass, according to check evaluation criterion, construction material is detected, carry out aperture record, the hole of " product " font or " rice " font is got out thereon before job site moved into by PVC-U pipe, aperture is 2.5mm, infiltration effect is played in whole work progress, wherein, described check evaluation criterion goes out the qualified examining report of certificate and ocular estimate inspection for the third party provided by manufacturer, and described three-dimensional porous resin filter element wraps up filter cloth by plastic core external body and forms and have filtering function,

Step 2), field investigation: carry out field investigation before construction, detect embankment moisture content, whether the moisture content analyzing embankment observes " disease " degree on road surface higher than the optimum moisture content detecting area, described optimum moisture content represents soil its corresponding moisture content when maximum dry density, be the ratio of the weight of weight and the dry ground particle divided with water in soil, represent with percentage; Described road surface " disease " is seriously road surface long-term existence frost boiling phenomenon or crack, the hole groove occurring 0.5cm ~ 1cm;

Step 3), location: according to step one) in the analysis of embankment moisture content and the observation of road surface " disease ", determine the position of construction site, soakaway trench, if embankment moisture content is higher than detect regional optimum moisture content 60%-75% and road surface " disease " is serious, then soakaway trench every 20m transverse direction setting together; If embankment moisture content higher than detect regional optimum moisture content 60%-75% and without road surface " disease ", then soakaway trench every 30m-50m transverse direction setting together;

Step 4), in place: the construction machinery needed for construction is stopped in place, the mechanical car being mounted with hanging device is rested in the construction point determined, fix mechanical car's support, start loop wheel machine, bracket track of being advanced by rig works the road slope place winching to and choose, the bracket track and rigging up is advanced, pin rig with latch closure to advance the horizontal fixed bar of bracket track, rig advance the both sides drill rod screw rod of bracket track hit real on silk, prevent rig advance work progress medium-height trestle track occur tilt, rock, finally with spirit level, rig to be advanced the transverse direction of bracket track, vertically carry out leveling,

Rig is laid steadily in place, and rig drilling rod used arranges placement, soakaway trench, the smooth placement of three-dimensional porous resin filter element by number, meanwhile, the supporting placement of drilling rod of generating set, drill bit, numbering, borehole trajectory is fixed;

Step 5), boring: install drill bit, drilling rod by number order is installed, starter-generator group trial run rig, rig normal operation then starts construction, every 5min-10min cleaning once assorted soil in work progress, and forbid in work progress to add water, avoid roadbed to be subject to water soaking, structure is destroyed, and wherein said drill bit is the drill bit of D90mm;

Step 6), the configuration of soakaway trench, three-dimensional porous resin filter element: select three-dimensional porous resin filter element according in advance selected soakaway trench, the diameter 10mm-20mm less of the internal diameter of soakaway trench of three-dimensional porous resin filter element, invest in soakaway trench in three-dimensional porous resin filter element, and length is identical with soakaway trench length;

Step 7), soakaway trench, three-dimensional porous resin filter element are installed: select soakaway trench, three-dimensional porous resin filter element according to the one-tenth hole length of drilling rod, the pipe of a caliber caliber larger than soakaway trench is being installed apart from hole mouth 0.5m place, wherein, described soakaway trench is the pipe of D90mm or D110mm, the pipe of a corresponding large caliber is the pipe of D100mm or D120mm, the pipe of this large caliber as the sealer between hole and soakaway trench, by soakaway trench jacking hole;

Step 8), close: with mortar or C15 concrete, hole is made Seal treatment; Wherein, the proportioning of the mortar of every cube is cement: sand: water=242:1655:270, and the proportioning of the C15 concrete of every cube is cement: sand: water: stone=185:247:768:1200;

Step 9), cleaning job site: hole close terminate after, cleaning job site construction rubbish, remove machinery, bracket track, move to next position, hole continue construction;

Step 10), two after thoughtful one month, again detect embankment moisture content, as moisture content is less than the optimum moisture content detecting area, then engineering terminates; If moisture content is higher than the optimum moisture content detecting area, then according to step 2) again continue process.

Claims (3)

1. an embankment transverse drainage construction method, is characterized in that, construction method is as follows:

Step one), construction material prepares: construction machinery comprises dry drilling machine, generating set, rig advance bracket track, drill bit, auger stem, soakaway trench, three-dimensional porous resin filter element, mixing water, PC32.5 sacked cement, medium grained sand, according to check evaluation criterion, construction material is detected, carry out aperture record, the hole of " product " font or " rice " font is got out thereon before job site moved into by PVC-U gutter, aperture is 2.5mm, plays infiltration effect in whole construction; Wherein, described check evaluation criterion goes out the qualified examining report of certificate and ocular estimate inspection for the third party provided by manufacturer, and described three-dimensional porous resin filter element wraps up filter cloth by plastic core external body and forms and have filtering function;

Step 2), field investigation: carry out field investigation before construction, detect embankment moisture content, whether the moisture content analyzing embankment observes " disease " degree on road surface higher than the optimum moisture content detecting area, described optimum moisture content represents soil its corresponding moisture content when maximum dry density, be the ratio of the weight of weight and the dry ground particle divided with water in soil, represent with percentage; Described road surface " disease " is seriously road surface long-term existence frost boiling phenomenon or crack, the hole groove occurring 0.5cm ~ 1cm;

Step 3), location: according to step one) in the analysis of embankment moisture content and the observation of road surface " disease ", determine the position of construction site, soakaway trench, if embankment moisture content higher than detect area optimum moisture content 60%-75% and road surface " disease " is serious, then soakaway trench every 20m transverse direction setting together; If embankment moisture content higher than detect regional optimum moisture content 60%-75% and without road surface " disease ", then soakaway trench every 30m-50m transverse direction setting together;

Step 4), in place: the construction machinery needed for construction is stopped in place, the mechanical car being mounted with hanging device is rested in the construction point determined, fix mechanical car's support, start loop wheel machine, bracket track of being advanced by rig works the road slope place winching to and choose, the bracket track and rigging up is advanced, pin rig with latch closure to advance the horizontal fixed bar of bracket track, the advance both sides drill rod screw rod of bracket track of rig hits real upper silk, prevent rig advance work progress medium-height trestle track occur tilt, rock, finally with spirit level, rig to be advanced the transverse direction of bracket track, vertically carry out leveling,

Rig is laid steadily in place, and rig drilling rod used arranges placement, soakaway trench, the smooth placement of three-dimensional porous resin filter element by number, meanwhile, the supporting placement of drilling rod of generating set, drill bit, numbering, rig track of advancing is fixed;

Step 5), boring: install drill bit, drilling rod by number order is installed, starter-generator group trial run rig, rig normal operation then starts construction, every 5min-10min cleaning once assorted soil in work progress, and forbid in work progress to add water, avoid roadbed to be subject to water soaking, structure is destroyed, and wherein said drill bit is the drill bit of D90mm;

Step 6), the configuration of soakaway trench, three-dimensional porous resin filter element: select three-dimensional porous resin filter element according in advance selected soakaway trench, the diameter 10mm-20mm less of the internal diameter of soakaway trench of three-dimensional porous resin filter element, invest in soakaway trench in three-dimensional porous resin filter element, and length is identical with soakaway trench length;

Step 7), soakaway trench, three-dimensional porous resin filter element are installed: select soakaway trench, three-dimensional porous resin filter element according to the one-tenth hole length of drilling rod, the soakaway trench of a caliber caliber larger than soakaway trench is being installed apart from hole mouth 0.5m place, wherein, described soakaway trench is the pipe of D90mm or D110mm, the pipe of a corresponding large caliber is the pipe (pvc-u pipe) of D100mm or D120mm, the pipe of this large caliber as the sealer between hole and soakaway trench, by soakaway trench jacking hole;

Step 8), close: with mortar or C15 concrete, hole is made Seal treatment; Wherein, the proportioning of the mortar of every cube is cement: sand: water=242:1655:270, and the proportioning of the C15 concrete of every cube is cement: sand: water: stone=185:247:768:1200;

Step 9), cleaning job site: hole close terminate after, cleaning job site construction rubbish, remove machinery, bracket track, move to next position, hole continue construction;

Step 10), two after thoughtful one month, again detect embankment moisture content, as moisture content is less than the optimum moisture content detecting area, then engineering terminates; If moisture content is higher than the optimum moisture content detecting area, then according to step 2) again continue process.

2. embankment transverse drainage construction method according to claim 1, is characterized in that: step one) described in medium grained sand be the sand that granular mass that particle diameter is greater than 0.25mm exceedes 50% of gross mass.

3. embankment transverse drainage construction method according to claim 1, is characterized in that: step one) described in mixing water be drinking water.