CN111648178A - Construction method for crossing existing route by transverse drainage channel in sealing point - Google Patents
Construction method for crossing existing route by transverse drainage channel in sealing point Download PDFInfo
- Publication number
- CN111648178A CN111648178A CN202010390400.3A CN202010390400A CN111648178A CN 111648178 A CN111648178 A CN 111648178A CN 202010390400 A CN202010390400 A CN 202010390400A CN 111648178 A CN111648178 A CN 111648178A
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- transverse drainage
- existing
- foundation pit
- channel
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
Abstract
The invention belongs to the technical field of drainage line construction of an existing route, in particular to a construction method for blocking a transverse drainage channel in a point to pass through the existing route, which solves the technical problems in the background technology. The invention can quickly pass through a busy trunk line in a short-time locking point, has small safety risk, higher efficiency, higher construction speed, low engineering cost, obvious social and economic benefits, saves the engineering investment, realizes the control of the construction quality, saves the fund to the minimum extent on the premise of realizing the safe and reliable guarantee of the construction and driving, ensures the engineering quality and has better popularization and application values.
Description
Technical Field
The invention belongs to the technical field of drainage line construction of existing routes, and particularly relates to a construction method for enabling a transverse drainage channel in a blocking point to pass through an existing route.
Background
The big and thin railway belongs to the busy trunk line, and blockade construction skylight is less and the blockade time is short, does not possess the condition of pushing forward under cast-in-place and the crawl condition of excavation when crossing the construction of the horizontal drainage facility of circuit, and how under the condition of not influencing business line driving, can construct fast and can avoid the potential safety quality hazard, is the problem of comparatively being worth studying at present.
Disclosure of Invention
The invention aims to solve the technical problems that construction can be carried out quickly and potential safety quality hazards can be avoided under the condition that a traffic line is not influenced, and provides a construction method for enabling a transverse drainage groove in a sealing point to pass through an existing route, under the special conditions that a busy trunk line has few sealing skylights and short sealing time, the installation of a transverse drainage facility can be completed quickly without adopting line reinforcement and slow jacking, the operation is convenient, and the efficiency is higher; the interference to a business line is small, the safety risk is small, and the occupied construction space is small.
The technical means for solving the technical problems of the invention is as follows: a construction method for enabling a transverse drainage channel in a blocking point to pass through an existing line comprises the following steps:
the method comprises the following steps: prefabricating a groove body and a cover plate which form a transverse drainage groove in front of the sealing point; the locking point is the time period for stopping the existing operation line;
step two: shifting two adjacent existing sleepers to two sides along the direction of the line at the position of the existing operation line where the transverse drainage groove needs to be constructed, so that the distance between the two shifted existing sleepers ensures that the transverse drainage groove can be normally constructed;
step three: excavating a foundation pit at a position where a transverse drainage groove is arranged on an existing operation line;
step four: pushing the poured and formed groove body sections into the foundation pit section by section from one end of the transverse position, aligning all the groove body sections until the length of a transverse drainage groove formed by arranging a plurality of groove body sections in the foundation pit reaches a designed length, and performing waterproof treatment on the joint of the adjacent groove body sections after the groove body sections are installed in place;
step five: mounting a cover plate which is poured and formed on the transverse drainage groove;
step six: and backfilling the foundation pit, backfilling railway ballast in time, shifting the track sleeper to be normal, recovering the track bed, removing the locking point and recovering the existing protective fence.
The process principle of the invention is that the groove body sections of the transverse drainage groove are prefabricated according to the design size outside the field, so that too much time cannot be delayed, the time of a blocking point is shortened, the influence on the existing operation line is reduced, the existing sleepers are manually drawn out in the blocking point, the track bed is cleaned, the foundation cleaning and tamping are carried out after the transverse drainage groove foundation groove is manually excavated in a mechanical matching way, then the transverse drainage groove and the cover plate are manually hoisted in place by utilizing the mechanical matching way, the joint between the adjacent groove body sections is subjected to waterproof treatment, and finally the track bed and the line are recovered after tamping. Under the special conditions that a busy trunk line has few blocking skylights and short blocking time, the installation of the transverse drainage facility can be quickly finished without adopting line reinforcement and slow jacking.
The invention has the beneficial effects that: according to the construction method, the transverse drainage grooves are prefabricated outside the locking points, excavating, hoisting and pushing are matched by using an excavator in the points, and under the special conditions that a busy trunk line has few blocked skylights and short blocked time, the installation of a transverse drainage facility can be quickly finished without adopting line reinforcement and slow jacking; the method can quickly pass through a busy trunk line in a short-time locking point, has small safety risk, higher efficiency, higher construction speed and low engineering cost, saves engineering investment, realizes the control of construction quality, has remarkable social and economic benefits, saves the fund to the minimum extent on the premise of realizing the safe and reliable guarantee of construction and driving, ensures the engineering quality and has better popularization and application values.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a schematic diagram of shifting two adjacent existing sleepers in step two of the present invention.
Fig. 3 is a schematic view of a transverse drainage channel crossing an existing service line.
Fig. 4 is an overall operation diagram of installing a lateral drainage channel using the excavator.
In the figure: 1-a channel section; 2-cover plate; 3-existing operating line; 4-existing crossties; 5, foundation pit; 6-channel steel.
Detailed Description
The construction method of crossing the existing line by the transverse drainage channel in the blocking point according to the present invention will be described in detail with reference to fig. 1 to 4.
A construction method for crossing an existing line by a transverse drainage channel in a blocking point is shown in figure 1, and comprises the following steps: constructing a pavement at a transverse position before a locking point, and ensuring a digging machine operation channel and a ballast transportation channel;
the method comprises the following steps: a groove body and a cover plate 2 which form a transverse drainage groove are prefabricated in front of the sealing point; therefore, a lot of working hours can be saved, the limitation of the size of the slotting site is avoided, and the groove body and the cover plate 2 can be poured in a proper site;
step two: poking and moving two adjacent existing sleepers 4 to two sides along the line direction at the position of the existing operation line 3 where the transverse drainage groove needs to be constructed, so that the distance between the two removed existing sleepers 4 can ensure that the transverse drainage groove can be normally constructed; specifically, 8 persons operate simultaneously, the existing sleepers 4 are moved within 20min, the clear distance between the sleepers is ensured to be 1.6m, then the track beds between the existing sleepers 4 are cleaned, and the excavation working face is cleaned, and the concrete structure is shown in fig. 2;
step three: in the 20-50min time period, the PC120 excavator is driven to the position of a road shoulder for excavation, a foundation pit 5 is excavated at the position, transversely penetrating through a transverse drainage groove, of the existing operation line 3, for example, the length of the foundation pit 5 is 5m, the width of the foundation pit 5 is 1.2m, and the depth of the foundation pit 5 is 1.3m, and the foundation pit 5 is constructed in a mode of being manually matched with a wheel excavator for vertical excavation; digging the soil body at the digging position to the outside of the field by using a digging machine, and carrying out secondary transportation; after a foundation pit 5 is excavated, the bottom of the foundation pit 5 is cleaned and tamped, then two channel steel 6 are arranged at the bottom of the foundation pit 5 along the length direction of a transverse drainage channel, the inverted side walls of the channel steel 6 are inserted into the ground, and the channel surface faces upwards to serve as a slideway;
step four: in the time period of 50-100min, the groove body sections 1 are placed on two channel steel 6, the shovel back of a PC120 excavator is used for pushing the groove body sections 1 which are cast outside the field into the foundation pit 5 section by section from one end of the transverse position, each groove body section is 10.5m long, 5m is needed to be arranged for a transverse drainage groove, 10 groove body sections 1 are needed in total, 1 groove body section 1 is installed by pushing in every 5 minutes on average, all the groove body sections 1 are aligned until the length of the transverse drainage groove formed by arranging the groove body sections 1 in the foundation pit 5 reaches the designed length, the transverse drainage groove is installed by mechanical cooperation, and after the excavator is pushed in place, a crowbar is used for accurate alignment manually to ensure that joints are aligned; after the installation is in place, waterproof treatment is carried out on the joint of the adjacent groove sections 1, wherein the waterproof treatment specifically comprises the steps of smearing cement mortar on the inner sides of the joints of the adjacent groove sections 1, filling the outer sides with hemp reinforcements soaked in waterproof paint, filling clay in the middle of the joints, and coating at least two asphalt layers on the positions of the joints on the outer sides of the groove sections 1. Specifically, the depth of the hemp tendon inserted into the joint is about 5 cm;
step five: within the period of 100-; then, tamping soil bodies on two sides of the side wall of the transverse drainage groove by adopting a manual tamping machine to ensure the stability of the bed;
step six: completing the backfilling of the foundation pit 5 within 150min of 110-; backfilling railway ballasts and shifting the track sleepers to correct positions in time after the foundation pit 5 is backfilled, and finally tamping the line by adopting a flexible shaft tamping machine; cleaning the construction machines, and enabling the personnel machines to go down to restore the existing protective fence.
The technological principle of the invention is that the tank body section 1 of the transverse drainage tank is prefabricated outside the site according to the design size, and the excavator can not only excavate the foundation pit 5, but also push the groove body section 1, thus ensuring the full utilization of the existing resources, thus, too much time can not be delayed, the time of the blocking point is shortened, the influence on the existing operation line 3 is reduced, manually drawing out the existing sleepers 4 in the sealing points, cleaning a track bed, mechanically matching with manual excavation of a transverse drainage channel foundation trench, cleaning and tamping the foundation, manually hoisting the transverse drainage channel and the cover plate 2 in place by using mechanical matching, specifically jacking the channel body section 1 by using the shovel back of the excavator, when the arm of the excavator is not enough to jack the channel body section 1, 1m-3m square wood with 10cm x 10cm is arranged at the side of the groove body section 1 for pushing transition, the device is used for prolonging the machine arm and taking the square timber as a connection to ensure that the groove body section 1 is smoothly jacked to a required position; and waterproof treatment is carried out on the seams between the adjacent groove body sections 1, and finally the ballast bed and the lines are restored after tamping. Under the special conditions that a blocking skylight is few and the blocking time is short in a busy trunk line, the installation of a transverse drainage facility can be quickly finished under the conditions of no line reinforcement and slow jacking, and the special conditions are as shown in fig. 3 and 4.
Further, as a specific embodiment of the construction method for passing through an existing line by using a transverse drainage channel in a blocking point, in the fourth step, the cover plate 2 is adapted to each section of the groove body section 1, and one cover plate 2 covers each section of the groove body section 1; when the cover plate 2 is prefabricated, the lifting steel bar hook is installed in advance, so that the lifting is convenient. In specific implementation, 10 cover plates 2 are needed for 10 groove body sections 1, and 1 cover plate 2 is installed every 2 minutes.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A construction method for enabling a transverse drainage channel in a blocking point to pass through an existing line is characterized by comprising the following steps:
the method comprises the following steps: a groove body section (1) and a cover plate (2) which form a transverse drainage groove are prefabricated in front of the sealing point;
step two: two adjacent existing sleepers (4) are shifted to two sides along the line direction at the position of an existing operation line (3) where a transverse drainage groove needs to be constructed, so that the distance between the two shifted existing sleepers (4) ensures that the transverse drainage groove can be normally constructed;
step three: excavating a foundation pit (5) at the position where the transverse drainage groove is arranged on the existing operation line (3);
step four: pushing the poured and formed groove body sections (1) into a foundation pit (5) from one end of a transverse position section by section, aligning all the groove body sections (1) until the length of a transverse drainage groove formed by arranging a plurality of groove body sections (1) in the foundation pit (5) reaches a designed length, and after the groove body sections are installed in place, performing waterproof treatment on the joints of the adjacent groove body sections (1);
step five: a cover plate (2) which is formed by pouring is arranged on the transverse drainage groove;
step six: and backfilling the foundation pit (5), then backfilling the railway ballast in time, shifting the track sleeper to be normal, recovering the track bed, removing the locking point and recovering the existing protective fence.
2. The construction method for penetrating through the existing route by using the transverse drainage groove in the blocking point according to claim 1 is characterized in that in the second step, after a foundation pit (5) is excavated, the bottom of the foundation pit (5) is cleaned and tamped, then two channel steels (6) are arranged at the bottom of the foundation pit (5) along the length direction of the transverse drainage groove, the inverted side walls of the channel steels (6) are inserted into the ground, and the groove faces upwards and is used as a slideway for pushing the groove body section (1) in the third step.
3. A method as claimed in claim 1 or 2, characterized in that in step two the foundation pit (5) is excavated by means of a digging machine, and in step three the trench sections (1) are pushed by means of the back of the digging machine.
4. A construction method for traversing an existing route by a transverse drainage channel in a locking point as claimed in claim 3, characterized in that the waterproofing treatment in the third step is concrete that cement mortar is smeared on the inner side of the joint of the adjacent channel sections (1), the outer side is filled with a hemp tendon soaked by waterproof paint, the middle of the joint is filled with clay, and the position of the outer side joint of the channel section (1) is coated with at least two asphalt layers.
5. The construction method for crossing the existing route by the transverse drainage grooves in the locking points as claimed in claim 4, wherein in the third step, the transverse drainage grooves are manually installed by mechanical cooperation, and after the excavator is pushed into place, the crow bars are manually used for accurate alignment, so as to ensure the alignment of the seams.
6. The construction method for crossing the existing route by the transverse drainage channel in the blocking point according to claim 5 is characterized in that in the fourth step, the cover plate (2) is matched with each section of the channel section (1), and each section of the channel section (1) is covered by one cover plate (2); when the cover plate (2) is prefabricated, the lifting steel bar hook is installed in advance, and the lifting is convenient.
7. The construction method for crossing the existing route by the transverse drainage groove in the blocking point according to claim 6, wherein after the step four is completed, soil bodies on two sides of the side wall of the transverse drainage groove are firstly tamped by a manual tamping machine, and then the step five is performed.
8. The construction method for crossing the existing route by the transverse drainage channel in the blocking point according to claim 7 is characterized in that the fifth step is that mortar and prepared ballast mixed in advance are mixed when the foundation pit (5) is backfilled, the mixture is poured into gaps on two sides of the foundation pit, the existing roadbed is solidified, and the rigidity of the existing roadbed is ensured not to be settled; and after the foundation pit (5) is backfilled, the railway ballast is backfilled in time, the track sleeper is shifted to be normal, and finally the line is tamped by adopting a flexible shaft tamping machine.
9. The construction method for crossing the existing route by the transverse drainage groove in the blocking point according to claim 8 is characterized in that a packway needs to be built at the crossing position before the blocking point, and a digging machine running channel and a ballast transporting channel are ensured.
10. The construction method for traversing an existing route by using the transverse drainage channels in the locking points as claimed in claim 9, characterized in that the foundation pit (5) is constructed by adopting a vertical excavation mode by manually matching a wheel type excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390400.3A CN111648178A (en) | 2020-05-11 | 2020-05-11 | Construction method for crossing existing route by transverse drainage channel in sealing point |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390400.3A CN111648178A (en) | 2020-05-11 | 2020-05-11 | Construction method for crossing existing route by transverse drainage channel in sealing point |
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| CN111648178A true CN111648178A (en) | 2020-09-11 |
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| CN202010390400.3A Pending CN111648178A (en) | 2020-05-11 | 2020-05-11 | Construction method for crossing existing route by transverse drainage channel in sealing point |
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Application publication date: 20200911 |
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