CN105484110B - Method for treating slurry leakage of gap between base plate of CRTSI type plate ballastless track of high-speed railway and surface layer of roadbed - Google Patents
Method for treating slurry leakage of gap between base plate of CRTSI type plate ballastless track of high-speed railway and surface layer of roadbed Download PDFInfo
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- CN105484110B CN105484110B CN201510821855.5A CN201510821855A CN105484110B CN 105484110 B CN105484110 B CN 105484110B CN 201510821855 A CN201510821855 A CN 201510821855A CN 105484110 B CN105484110 B CN 105484110B
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
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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
- E01B2/00—General structure of permanent way
Abstract
The invention belongs to the technical field of high-speed railway ballastless track repair, and aims to provide a method for treating the free joint bleeding between a CRTSI type slab ballastless track base plate and a roadbed surface layer of a high-speed railway, which can fundamentally solve the problem of free joint bleeding and ensure the running stability and safety of a ballastless track; the operation is accurate, and is practical economical, can utilize limited skylight time to accomplish the restoration and guarantee the ride comfort of circuit to the bed plate with the bed course between the bed course.
Description
Technical Field
The invention belongs to the technical field of high-speed railway ballastless track repair, and particularly relates to a method for repairing grout leakage of a gap between a CRTSI type plate ballastless track base plate and a roadbed surface layer.
Background
A ballastless track is a track structure form with less maintenance of a high-speed railway, and wheel track force is distributed and transmitted to a roadbed foundation by utilizing a reinforced concrete base plate to replace a ballast track bed. The ballastless track has the characteristics of good track stability, continuity and smoothness, good structural durability, less maintenance workload, long service life and the like, so that most of high-speed railways built at the present stage mainly use the ballastless track. Ballastless tracks generally adopt sealing materials to seal the track, and water is prevented from permeating into the track structure. When water seeps between the track base plate and the roadbed surface layer, the inside of the track structure is damaged, and the phenomenon of crack and slurry leakage occurs. The safety, comfort and smoothness of train running can be seriously influenced, the operation speed of the train and the traffic capacity of a railway road are reduced, and the method is one of important hidden dangers of ballastless track railway traffic safety.
In actual maintenance, a method for repairing grout leakage of a gap between a base plate of a CRTSI type plate ballastless track on a roadbed and the surface layer of the roadbed is to close the surface gap, but accumulated water exists between the base plate and the surface layer of the roadbed, grout leakage still occurs under the vibration of a train, and a sealing material is damaged by the grout leakage. Therefore, sealing surface open seams does not fundamentally address open seam slurry bleeding.
Disclosure of Invention
The invention aims to provide a method for treating the grout leakage of the gap between the base plate of the CRTSI type plate ballastless track and the surface layer of the roadbed of the high-speed railway, which can fundamentally solve the grout leakage of the gap and ensure the running stability and safety of the ballastless track.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for treating slurry leakage of a gap between a CRTSI type plate ballastless track base plate and a roadbed surface layer of a high-speed railway comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of the base plate, drilling holes at the side seams at equal intervals to form sealing holes, and then inserting grouting pipes into the sealing holes;
(2) for the track structure with the track plate as the frame plate: drilling grouting holes on two sides of the base plate and the central line of the track plate, then inserting grouting pipes, and temporarily sealing the grouting pipes;
for the rail structure with the rail plate as the solid plate: drilling two rows of grouting holes on two sides of the base plate respectively, drilling holes vertically in one row on the outer side, drilling holes obliquely towards the center of the base plate in one row on the inner side, wherein the inclination angle is 40-50 degrees, then inserting grouting pipes, and temporarily sealing the grouting pipes;
(3) sealing the side seams at the two sides of the base plate by adopting a sealing material, and fixing the grouting pipes at the sealing holes;
(4) injecting a sealing material into the closed hole separating holes from one end of the base plate, stopping injecting when the sealing material flows out of the adjacent holes, and injecting into the next hole until all the holes are injected;
(5) pouring a high polymer material into the grouting holes from one end of the base plate, pouring the high polymer material into the center of the base plate firstly, and then pouring the high polymer material into the two sides of the base plate, wherein in the pouring process, the pouring is stopped when the high polymer material flows out from adjacent holes, and the pouring of the next hole is carried out;
(6) after the pouring is finished, cleaning residues and slurry around the grouting hole;
(7) and (4) removing the grouting pipe, and plugging the grouting hole by using a high polymer material.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway preferably comprises the step (1) of drilling the closed holes to the depth of 2-3 cm from the roadbed gravel layer, controlling the aperture of the closed holes to be 5-15 mm, and controlling the hole spacing to be 10-20 mm.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway preferably comprises the step (2), wherein the diameters of grouting holes are controlled to be 5-15 mm, the grouting holes are drilled to the depth of 3-5 cm of a gravel layer, the holes drilled in the range of 200mm at two ends of the base plate are properly encrypted, the hole spacing is controlled to be 20-30 mm, and the hole spacing at the other positions is controlled to be 30-50 mm.
The method for treating the slurry leakage of the gap between the base plate of the CRTSI type plate ballastless track and the surface layer of the roadbed of the high-speed railway preferably comprises the step (2) of temporarily sealing a grouting pipe by adopting glass cement or an adhesive tape.
According to the method for treating the slurry leakage of the gap between the base plate of the CRTSI type plate ballastless track and the surface layer of the roadbed of the high-speed railway, preferably, in the step (3), the sealing material is silicone sealant or epoxy resin adhesive.
According to the method for treating the slurry leakage of the gap between the base plate of the CRTSI type plate ballastless track and the surface layer of the roadbed of the high-speed railway, preferably, in the step (4), the sealing material is silicone sealant or epoxy resin adhesive.
The silicone sealant can be commercially available silicone sealants produced by Dow Corning company, Chengdu silicon Bao science and technology GmbH, Guangzhou white cloud chemical industry GmbH, and the like. The epoxy resin adhesive can be produced by Shanghai Kangda chemical industry Co., Ltd, Shandong Huacheng Gaokao adhesive Co., Ltd, Shenzhen Shang Langbaowan fine chemical industry Co., Ltd, etc.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway preferably comprises the step (5) that high-polymer materials are high-strength shrinkage-free fast flow mortar, epoxy mortar or polybutylene.
The high-strength shrinkage-free rapid flow mortar can be high-strength shrinkage-free rapid flow mortar produced by Beijing Zhongde Xinya building technology limited company, Beijing Tianhongyude concrete admixture limited company and the like. The epoxy mortar and polybutene may be epoxy mortar or polybutene produced by Beijing Jie Gu New technology, Beijing Guwei building materials, etc.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway comprises the step (5) of controlling the grouting pressure to be 0.2-0.5 MPa, preferably 0.3-0.4 MPa.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway has the following advantages:
(1) drilling a grouting hole on the base plate, installing a grouting pipe, and filling a high polymer material into the grouting pipe, so that accumulated water between the base plate and the roadbed surface layer is absorbed, and a gap between the base plate and the roadbed surface layer is densely filled, so that the effect is good, the stability of a ballastless track structure can be well recovered, and the safety and the comfort of operation are ensured;
(2) closed holes are arranged at the side seams at the two sides of the base plate, grouting pipes are installed, sealing materials are injected into the closed holes through the grouting pipes, a compact waterproof curtain is formed in the roadbed rubble layer, moisture in the roadbed is prevented from permeating between the base plate and the roadbed surface layer again, and the phenomenon of grout leakage from the seams is prevented from happening again;
(3) the method is accurate in operation, practical and economical, can repair the gap between the base plate and the roadbed surface layer by using limited skylight time and ensure the smoothness of the line, and provides an effective method for solving the problem of slurry leakage of the gap between the base plate and the roadbed surface layer.
The method for treating slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the surface layer of the roadbed of the high-speed railway is further described with reference to the attached drawings.
Drawings
FIG. 1 is a schematic plan view of a closed hole and a grouting hole of a track structure with a track plate as a frame plate;
FIG. 2 is a schematic cross-sectional layout view of a closed hole and a grouting hole of a track structure with a track slab as a frame slab;
FIG. 3 is a schematic plan view of the track structure with the track slab being a solid slab, with the closed holes and the grouting holes arranged;
fig. 4 is a schematic cross-sectional layout view of a closed hole and a grouting hole of a track structure with a solid track slab.
Detailed Description
Example 1
As shown in fig. 1 and 2, the CRTSI type frame slab ballastless track of the high-speed railway, that is, the track slab 4 is a frame slab, and as the sealing material for the side seam of the base slab 1 is aged and damaged, the grout is released from the gap between the base slab 1 and the surface layer 7 of the roadbed, and the repairing method is adopted for repairing, and comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of a base plate 1, drilling holes at the side seams to arrange sealing holes 2, drilling the sealing holes 2 to reach a roadbed gravel layer by 2cm in depth, setting the aperture of each sealing hole 2 to be 5mm and setting the hole spacing to be 10mm, and then inserting grouting pipes 3 into the sealing holes 2;
(2) drilling grouting holes 5 and 8 at the two sides of the base plate 1 and the opening of the track plate 4 along the central line respectively, wherein the diameters of the grouting holes 5 and 8 are 5mm, the grouting holes are drilled to the depth of 3cm of the gravel layer, the drilling holes at the two ends of the base plate 1 are properly encrypted within the range of 200mm, the hole spacing is 20mm, the hole spacing at the other positions is 30mm, then respectively inserting grouting pipes 6 and 9, and temporarily sealing the grouting pipes by using glass cement;
(3) sealing the side seams at two sides of the base plate 1 by adopting silicone sealant from one end of the base plate 1, and fixing the grouting pipes 3 at the sealed holes 2;
(4) injecting silicone sealant into the closed holes 2 from one end of the base plate 1, stopping injecting the sealant when the sealant flows out of the adjacent holes, injecting the sealant into the next hole until the sealant is injected into all the holes, and thus forming a closed curtain on the roadbed crushed stone to prevent water in the roadbed from permeating between the base plate 1 and the roadbed surface layer 7;
(5) pouring high-strength shrinkage-free fast flow mortar into the grouting holes from one end of the base plate 1, grouting the center of the base plate through the grouting pipe 9 in the middle of the first track plate, then grouting the two sides of the base plate through the grouting pipes 6 on the two sides of the track plate, sequentially and bilaterally symmetrically grouting, controlling the grouting pressure to be 0.2MPa, stopping grouting when the mortar flows out of adjacent holes, grouting the next hole, grouting the center of the base plate through the grouting pipe in the middle of the next track plate after grouting of all the grouting holes in the corresponding position of the first track plate is finished, and repeating the steps until grouting of all the grouting holes 5 and 8 is finished;
(6) after grouting, cleaning slurry and residues around the grouting holes;
(7) removing the grouting pipe: for the grouting pipe 3 at the closed hole 2, cutting the protruding part; for the grouting pipes 6 and 9 at the grouting holes 5 and 8, the grouting pipes are directly dismantled or the protruded parts are cut, and then high-strength shrinkage-free fast-flowing mortar is used for plugging the grouting holes.
The foundation plate 1 which is grouted is checked on site, and the track geometric dimension is checked again without finding the full part which is not grouted, which meets the requirements.
Example 2
The method for repairing the sealing material of the side seam of the base plate of the CRTSI type frame plate type ballastless track of the high-speed railway after aging and damage and slurry leakage of the gap between the base plate and the surface layer of the roadbed by adopting the repairing method comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of a base plate, drilling holes at the side seams to form sealed holes, drilling the sealed holes to reach a roadbed gravel layer by 3cm in depth, controlling the aperture of the sealed holes to be 15mm and the hole spacing to be 20mm, and then inserting grouting pipes into the sealed holes;
(2) drilling grouting holes along the central line at the two sides of the base plate and the opening of the track plate, controlling the diameter of the grouting holes to be 15mm, drilling the grouting holes to a depth of 5cm from the crushed stone layer, properly encrypting the drilling holes within 200mm of the two ends of the base plate, controlling the hole spacing to be 30mm, controlling the hole spacing of the rest positions to be 50mm, then inserting grouting pipes, and temporarily sealing the grouting pipes by using adhesive tapes;
(3) sealing the side seams at two sides of the base plate by using epoxy resin glue from one end of the base plate, and fixing the grouting pipes at the closed holes;
(4) injecting epoxy resin glue into the closed hole separation holes from one end of the base plate, stopping injecting glue when the glue solution flows out of the adjacent holes, injecting glue into the next hole until the glue injection of all the holes is finished, and thus forming a closed curtain on the roadbed crushed stone to prevent water in the roadbed from permeating into the base plate and the roadbed surface layer;
(5) pouring epoxy mortar into the grouting holes from one end of the base plate, grouting to the center of the base plate through the grouting pipes in the middle of the first track plate, grouting to the two sides of the base plate through the grouting pipes on the two sides of the track plate, sequentially and bilaterally symmetrically grouting, controlling the grouting pressure to be 0.5MPa, stopping grouting when grout flows out of adjacent holes, grouting the next hole, grouting to the center of the base plate through the grouting pipes in the middle of the next track plate after grouting of all the grouting holes in the corresponding positions of the first track plate is finished, and repeating the steps until grouting of all the grouting holes is finished;
(6) after grouting, cleaning slurry and residues around the grouting holes;
(7) removing the grouting pipe: for the grouting pipe at the closed hole, cutting the protruding part; and (4) directly removing or cutting the projected part of the grouting pipe at the grouting hole, and then plugging the grouting hole by using epoxy mortar.
The base plate which is injected with the grout is checked on site, the part which is not fully injected with the grout is not found, and the geometrical size of the track is checked back and meets the requirements.
Example 3
As shown in fig. 3 and 4, in the CRTSI type solid slab ballastless track of the high-speed railway, that is, the track slab 19 is a solid slab, and as the sealing material for the side seam of the base slab 11 is aged and damaged, the grout is released from the gap between the base slab 11 and the surface layer 18 of the roadbed, the repairing is performed by the repairing method of the invention, which comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of a base plate 11, drilling closed holes 12 at the side seams, drilling the closed holes 12 to reach 2.5cm deep into a roadbed gravel layer, setting the aperture of each closed hole 12 to be 10mm and the distance between every two closed holes to be 15mm, and then inserting grouting pipes 13 into the closed holes 12;
(2) drilling two rows of grouting holes 14 and 15 on two sides of a base plate 11 respectively, drilling one row of vertical holes on the outer side, drilling one row of inclined holes on the inner side towards the center of the base plate 1, wherein the inclination angle is 45 degrees, the hole diameters of the two rows of grouting holes are both 10mm, the hole depth is drilled until a crushed stone layer is 4cm, the drilled holes at two ends of the base plate are properly encrypted within the range of 200mm, the hole spacing is 25mm, the hole spacing at other positions is 40mm, then inserting grouting pipes 16 and 17 respectively, and sealing the grouting pipes temporarily by using glass cement;
(3) sealing the side seams at two sides of the base plate by adopting silicone sealant from one end of the base plate 11, and fixing the grouting pipes 13 at the closed holes 12;
(4) injecting silicone sealant into the closed holes 12 from one end of the base plate 11, stopping injecting the sealant when the sealant flows out of the adjacent holes, and injecting the sealant into the next hole until the sealant is injected into all the holes, so that a closed curtain is formed on the roadbed crushed stone to prevent water in the roadbed from permeating between the base plate 11 and the roadbed surface layer 18;
(5) pouring high-strength shrinkage-free fast flow mortar into the grouting holes from one end of the base plate 1, grouting the center of the base plate through the grouting pipe 16 on the inner side, grouting the two sides of the base plate through the grouting pipe 17 on the outer side, sequentially and symmetrically grouting left and right, controlling the grouting pressure to be 0.3MPa, stopping grouting when the grout flows out of the adjacent holes, and grouting the next hole until the grouting of all the grouting holes is finished;
(6) after grouting, cleaning slurry and residues around the grouting holes;
(7) removing the grouting pipe: for the grouting pipe 13 at the closed hole 12, cutting the protruding part; and for the grouting pipes 16 and 17 at the grouting holes, the grouting holes are plugged by high-strength shrinkage-free fast-flowing mortar after the protruded parts are directly removed or cut.
The base plate which is injected with the grout is checked on site, the part which is not fully injected with the grout is not found, and the geometrical size of the track is checked back and meets the requirements.
Example 4
The method for repairing the aged and damaged sealing material of the side seam of the base plate of the CRTSI type solid plate ballastless track of the high-speed railway and the slurry leakage of the gap between the base plate and the surface layer of the roadbed by adopting the repairing method comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of the base plate, drilling closed holes at the side seams, drilling the closed holes to reach a roadbed crushed stone layer by 3cm in depth, wherein the hole diameter of each closed hole is 12mm, the hole interval is 13mm, and then inserting grouting pipes into the closed holes;
(2) drilling two rows of grouting holes on two sides of the base plate respectively, drilling a row of vertical holes on the outer side, drilling a row of inclined holes towards the center of the base plate on the inner side, wherein the inclination angle is 50 degrees, the hole diameters of the two rows of grouting holes are both 12mm, the hole depth is drilled to 5cm of a gravel layer, the drilling holes in the range of 200mm at two ends of the base plate are properly encrypted, the hole distance is 22mm, the hole distances at other positions are 33mm, then inserting grouting pipes, and temporarily sealing the grouting pipes by using adhesive tapes;
(3) sealing the side seams at two sides of the base plate by using epoxy resin glue from one end of the base plate, and fixing the grouting pipes at the closed holes;
(4) injecting epoxy resin glue into the closed hole separation holes from one end of the base plate, stopping injecting glue when the glue solution flows out of the adjacent holes, injecting glue into the next hole until the glue injection of all the holes is finished, and thus forming a closed curtain on the roadbed crushed stone to prevent water in the roadbed from permeating into the base plate and the roadbed surface layer;
(5) pouring polybutene into the grouting holes from one end of the base plate, pouring polybutene into the center of the base plate through the inner grouting pipe, and then pouring polybutene into the two sides of the base plate through the outer grouting pipe, wherein the pouring is performed in a left-right symmetrical manner in sequence, the pouring pressure is controlled to be 0.4MPa, and when the grout flows out of the adjacent holes, the pouring of the next hole is stopped until the pouring of all the grouting holes is completed;
(6) after the pouring is finished, cleaning the grout and residues around the grouting holes;
(7) removing the grouting pipe: for the grouting pipe at the closed hole, cutting the protruding part; and for the grouting pipe at the grouting hole, directly removing or cutting the protruding part and then plugging the grouting hole by using polybutylene.
The base plate which is injected with the grout is checked on site, the part which is not fully injected with the grout is not found, and the geometrical size of the track is checked back and meets the requirements.
The method for renovating the slurry leakage of the gap between the base plate of the CRTSI type plate ballastless track and the surface layer of the roadbed of the high-speed railway is suitable for renovating the slurry leakage of the gap between the base plate and the surface layer of the roadbed due to the aging and damage of the side seam sealing material of the ballastless track structure railway of the roadbed section, has accurate operation, is practical and economical, can utilize the limited skylight time to repair the slurry leakage of the gap between the base plate and the surface layer of the roadbed and ensure the smoothness of the line, and provides an effective renovating method for solving the slurry leakage of the gap between the base plate and the surface layer of the roadbed.
The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate and the roadbed surface layer of the high-speed railway has the following advantages:
(1) drilling a grouting hole on the base plate, installing a grouting pipe, and filling a high polymer material into the grouting pipe, so that accumulated water between the base plate and the roadbed surface layer is absorbed, and a gap between the base plate and the roadbed surface layer is densely filled, so that the effect is good, the stability of a ballastless track structure can be well recovered, and the safety and the comfort of operation are ensured;
(2) closed holes are arranged at the side seams at the two sides of the base plate, grouting pipes are installed, sealing materials are injected into the closed holes through the grouting pipes, a compact waterproof curtain is formed in the roadbed rubble layer, moisture in the roadbed is prevented from permeating between the base plate and the roadbed surface layer again, and the phenomenon of grout leakage from the seams is prevented from happening again;
(3) the method has the advantages of accurate operation, practicability and economy, can finish repairing the gap between the base plate and the roadbed surface layer by using the limited skylight time and ensure the smoothness of the line, and provides an effective method for solving the problem of slurry leakage of the gap between the base plate and the roadbed surface layer;
(4) the sealing material at the side seams at the two sides of the base plate adopts silicone sealant or epoxy resin adhesive, so that the construction is easy, the curing is fast, the viscosity is good, and the sealing effect on the side seams is good;
(5) the high polymer material poured between the base plate and the roadbed surface layer adopts high-strength shrinkage-free fast flow mortar, epoxy mortar or polybutylene, has good pouring fluidity and high coagulation speed in a short time, can meet the strength requirement, and can meet the construction requirement in a limited skylight time.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A method for treating slurry leakage of a gap between a CRTSI type plate ballastless track base plate and a roadbed surface layer of a high-speed railway is characterized by comprising the following steps: the method comprises the following steps:
(1) cleaning sealing materials of side seams at two sides of the base plate, drilling holes at the side seams at equal intervals to form sealing holes, and then inserting grouting pipes into the sealing holes;
(2) for the track structure with the track plate as the frame plate: drilling grouting holes on two sides of the base plate and the central line of the track plate, then inserting grouting pipes, and temporarily sealing the grouting pipes;
for the rail structure with the rail plate as the solid plate: drilling two rows of grouting holes on two sides of the base plate respectively, drilling holes vertically in one row on the outer side, drilling holes obliquely towards the center of the base plate in one row on the inner side, wherein the inclination angle is 40-50 degrees, then inserting grouting pipes, and temporarily sealing the grouting pipes;
(3) sealing the side seams at the two sides of the base plate by adopting a sealing material, and fixing the grouting pipes at the sealing holes;
(4) injecting a sealing material into the closed hole separating holes from one end of the base plate, stopping injecting when the sealing material flows out of the adjacent holes, and injecting into the next hole until all the holes are injected;
(5) pouring a high polymer material into the grouting holes from one end of the base plate, pouring the high polymer material into the center of the base plate firstly, and then pouring the high polymer material into the two sides of the base plate, wherein in the pouring process, the pouring is stopped when the high polymer material flows out from adjacent holes, and the pouring of the next hole is carried out;
(6) after the pouring is finished, cleaning residues and slurry around the grouting hole;
(7) and (4) removing the grouting pipe, and plugging the grouting hole by using a high polymer material.
2. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1, which is characterized by comprising the following steps: in the step (1), the depth of the closed holes is drilled to reach 2-3 cm of the roadbed gravel layer, the aperture of the closed holes is controlled to be 5-15 mm, and the hole distance is controlled to be 10-20 mm.
3. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1 or 2, which is characterized by comprising the following steps: in the step (2), the diameter of each grouting hole is controlled to be 5-15 mm, the depth of each grouting hole is 3-5 cm, the holes drilled in the range of 200mm at two ends of the base plate are properly encrypted, the hole distance is controlled to be 20-30 mm, and the hole distances of other positions are controlled to be 30-50 mm.
4. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1 or 2, which is characterized by comprising the following steps: in the step (2), the grouting pipe is temporarily sealed by adopting glass cement or adhesive tape.
5. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1 or 2, which is characterized by comprising the following steps: in the step (3), the sealing material is silicone sealant or epoxy resin adhesive.
6. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 5, wherein the method comprises the following steps: in the step (4), the sealing material is silicone sealant or epoxy resin adhesive.
7. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1 or 2, which is characterized by comprising the following steps: in the step (5), the high polymer material is high-strength shrinkage-free fast flow mortar, epoxy mortar or polybutylene.
8. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 1 or 2, which is characterized by comprising the following steps: in the step (5), the grouting pressure is controlled to be 0.2-0.5 MPa.
9. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 3, wherein the method comprises the following steps: in the step (5), the high polymer material is high-strength shrinkage-free fast flow mortar, epoxy mortar or polybutylene.
10. The method for treating the slurry leakage of the gap between the CRTSI type plate ballastless track base plate of the high-speed railway and the surface layer of the roadbed according to claim 8, wherein the method comprises the following steps: in the step (5), the grouting pressure is controlled to be 0.3-0.4 MPa.
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| CN201510821855.5A CN105484110B (en) | 2015-11-24 | 2015-11-24 | Method for treating slurry leakage of gap between base plate of CRTSI type plate ballastless track of high-speed railway and surface layer of roadbed |
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| CN106012697B (en) * | 2016-05-30 | 2018-10-16 | 沪杭铁路客运专线股份有限公司 | Ballastless track roadbed high polymer grouting lifting method |
| CN107476149B (en) * | 2017-08-02 | 2019-06-04 | 中铁四院集团岩土工程有限责任公司 | A kind of non-excavation type ballastless track mortar leafing seams seam processing method |
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| CN110670418A (en) * | 2019-09-26 | 2020-01-10 | 中铁四院集团岩土工程有限责任公司 | Ballastless track roadbed surface layer slurry turning and finishing method |
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