CN116377781B - Culvert bench back roadbed treatment construction method - Google Patents
Culvert bench back roadbed treatment construction method Download PDFInfo
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- CN116377781B CN116377781B CN202310579597.9A CN202310579597A CN116377781B CN 116377781 B CN116377781 B CN 116377781B CN 202310579597 A CN202310579597 A CN 202310579597A CN 116377781 B CN116377781 B CN 116377781B
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- culvert
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- rod group
- conducting rod
- roadbed
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 83
- 230000008093 supporting effect Effects 0.000 claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000012466 permeate Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009736 wetting Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- 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
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a culvert bench back roadbed processing construction method, which belongs to the technical field of culvert engineering, and comprises the steps of arranging a plurality of steps in a backfill area, arranging long grooves on each step, fixedly installing supporting seats on the long grooves, installing guide stress structures on each supporting seat, arranging a first acting force conducting rod group, a second acting force conducting rod group and a third acting force conducting rod group in parallel on the guide stress structures, arranging a reinforcing connecting piece between two adjacent guide stress structures, filling road base materials into backfill distinguishing layers, tamping each layer of road base materials, and detecting compactness of each layer; after a layer of road base material is tamped, a stop block is arranged below each obliquely arranged conductive rod. The culvert bench back roadbed treatment construction method provided by the invention ensures that the backfilled culvert bench back has stronger bearing capacity and deformation resistance, and can effectively prevent the occurrence of sedimentation phenomenon.
Description
Technical Field
The invention belongs to the technical field of culvert engineering, and particularly relates to a culvert bench back roadbed treatment construction method.
Background
Culverts are channels which are arranged below roadbeds and constructed below the pavement in order to ensure that roads smoothly pass through water channels without obstructing traffic in highway engineering construction, are used for draining flood across natural valley depressions, or are used as interchange channels for people, livestock and vehicles across large and small roads, or are used as water channels in farmland irrigation. Due to comprehensive factors such as climate, topography, construction and the like, the culvert bench back is easy to subside, so that conditions such as pavement depression, cracks, bench back jump and the like are caused. At present, measures of slowing down the settlement speed of the roadbed and heightening the road surface are adopted to solve the problem of uneven settlement of the roadbed, but the effect is not obvious.
Disclosure of Invention
The invention aims to provide a culvert back roadbed treatment construction method, which aims to solve the technical problem that the culvert back in the prior art has a sedimentation phenomenon.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a culvert bench back roadbed treatment construction method, which comprises the following steps:
s1: arranging a plurality of outwardly extending steps in backfill areas on two sides of a culvert, cleaning sundries in the backfill areas, leveling the bottom surface of the backfill areas, and sprinkling water on each step for wetting;
s2: a long strip groove is formed in each step, the length direction of the long strip groove is consistent with the length direction of the culvert, a supporting seat is fixedly arranged on the long strip groove, and an extension rod extending into the ground of the backfill area is arranged at the lower end of the supporting seat;
s3: mounting guide stress structures on the support seats, wherein the heights of the top ends of the guide stress structures are the same; the guide stress structure comprises a first acting force conducting rod group, a second acting force conducting rod group and a third acting force conducting rod group which are arranged side by side, wherein a plurality of conducting rods in the first acting force conducting rod group and a plurality of conducting rods in the third acting force conducting rod group are obliquely arranged and are opposite in inclination direction, and a plurality of conducting rods in the second acting force conducting rod group are vertically arranged;
s4: a reinforcing connecting piece is arranged between two adjacent guide stress structures, and the positions of the reinforcing connecting pieces are gradually increased along the rising directions of a plurality of steps;
s5: filling road base materials into the backfill area in layers, wherein the thickness of each layer of road base materials is 10-20cm; each layer of base material is tamped, and each layer of base material is subjected to compaction degree detection; after a layer of road base material is tamped, a stop block is arranged below each obliquely arranged conductive rod, and the stop block is provided with a bearing surface matched with the lower side surface of the corresponding conductive rod.
In one possible implementation, the plurality of conductive rods in the first force conductive rod set are arranged in parallel, and the plurality of conductive rods in the third force conductive rod set are arranged in parallel; the included angle between each conducting rod in the first acting force conducting rod group and the horizontal plane is equal to the included angle between each conducting rod in the third acting force conducting rod group and the horizontal plane.
In one possible implementation manner, the vertical plane where the axes of the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group are located is perpendicular to the vertical plane where the side wall of the culvert is located, and the vertical plane where the axes of the extension rods are located is parallel to the vertical plane where the side wall of the culvert is located.
In one possible implementation manner, the reinforcing connection piece is horizontally arranged and is located between two adjacent layers of roadbed materials, a plurality of protruding portions are arranged on the outer side face of the reinforcing connection piece, and the reinforcing connection piece is fixedly connected with corresponding conducting rods in the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group.
In one possible implementation, when each layer of roadbed material is compacted, firstly, one end of the roadbed material, which is close to a culvert, is compacted, wherein the compacting width is 80-100cm; one end of each layer of roadbed material, which is close to the side wall of the culvert, is provided with an abutting boss, one side of the abutting boss is supported on the side wall of the culvert, and one side of the abutting boss, which is far away from the culvert, is an extrusion inclined surface for tamping.
In one possible implementation, before each layer of roadbed material is tamped, sprinkling water on the roadbed material and allowing water to permeate the roadbed material; when the road base material is filled, sprinkling and humidifying are carried out on the road base material in advance.
In one possible implementation manner, the support seat, the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group are prefabricated, after the support seat is installed in the long-strip groove, the upper end face of the support seat is knocked by hammering, so that the extension rod at the lower end of the support seat extends into the bottom face of the long-strip groove, and the upper end face of the support seat is horizontally arranged.
In one possible implementation manner, in S5, when the road base material is filled to be level with the top end of the guiding stress structure, installing a plurality of arc-shaped supporting rods spanning the culvert above the culvert, wherein two ends of each arc-shaped supporting rod are connected with the upper ends of the conducting rods in the second acting force conducting rod group which are respectively positioned at the backfill areas at two sides of the culvert and close to the culvert, and then filling the road base material, the water stabilizing layer and tamping; the road base material covers the arc stay bars.
In one possible implementation manner, the arc-shaped supporting rod comprises an arc-shaped sleeve and a plurality of arc-shaped reinforcing steel bars installed in the arc-shaped sleeve, a connecting hole is formed in the upper end of the conducting rod connected with the arc-shaped supporting rod, and the end parts of the arc-shaped reinforcing steel bars are installed in the connecting hole and are in sealing connection.
In one possible implementation, the lower end of the stop block is supported on the tamped road base material, the stop block is provided with a containing hole, and the road base material is filled in the containing hole.
The culvert bench back roadbed treatment construction method provided by the invention has the beneficial effects that: compared with the prior art, the culvert bench back roadbed treatment construction method has the advantages that when in use, the backfill area is excavated to form a step shape, impurities and the like in the backfill area are completely cleaned, the backfill quality of the backfill area is ensured, and then the bottom surface of the backfill area is leveled and water is sprayed for infiltration; the steps are provided with long grooves, supporting seats are arranged in the long grooves, the supporting seats are firmly fixed on the steps by means of extension rods at the lower ends of the supporting seats, and then a first acting force conducting rod group, a second acting force conducting rod group and a third acting force conducting rod group are arranged at the upper ends of the supporting seats, wherein a plurality of conducting rods in the first acting force conducting rod group and a plurality of conducting rods in the third acting force conducting rod group are obliquely arranged, and a plurality of conducting rods in the second acting force conducting rod group are vertically arranged and are used; the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group on the supporting seats are connected into a whole by using the reinforcing connecting piece, meanwhile, the height of each guiding stress structure is reduced along with the rising of the step, so that the top end positions of the guiding stress structures are positioned on the same horizontal plane, the backfill area is filled with road base materials in a layered mode, and each layer of road base materials are tamped and detected in compactness; after a layer of roadbed material is tamped, a stop block is arranged under each obliquely arranged conductive rod, and the corresponding conductive rod has better bearing capacity through the stop block. Through this kind of construction method, with the help of supporting seat and install the first effort conducting rod group, second effort conducting rod group and the third effort conducting rod group on the supporting seat, make the culvert bench back after backfilling have stronger bearing capacity and anti deformability, can prevent the emergence of subsidence phenomenon effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a culvert back subgrade treatment construction method according to an embodiment of the present invention.
Wherein, each reference sign in the figure:
100. a culvert; 200. backfilling the area; 210. a step; 220. a long groove; 230. a support base; 240. an extension rod; 300. a guiding stress structure; 310. a first force-transmitting rod set; 320. a second force-transmitting rod set; 330. a third force-transmitting rod set; 400. reinforcing the connection member; 500. and a stop block.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, a description will now be given of a method for treating and constructing 100 back roadbeds in a culvert according to the present invention. A culvert 100-station back roadbed treatment construction method comprises the following steps of S1: the backfill areas 200 at two sides of the culvert 100 are provided with a plurality of steps 210 extending outwards, sundries in the backfill areas 200 are cleaned, the bottom surfaces of the backfill areas 200 are leveled, and water is sprayed on each step 210 for wetting; s2: each step 210 is provided with a long strip groove 220, the length direction of the long strip groove 220 is consistent with the length direction of the culvert 100, a supporting seat 230 is fixedly arranged on the long strip groove 220, and the lower end of the supporting seat 230 is provided with an extension rod 240 extending into the backfill area 200 below the ground; s3: the guide stress structures 300 are installed on the supporting seats 230, and the top ends of the guide stress structures 300 are the same in height; the guiding stress structure 300 comprises a first acting force conducting rod group 310, a second acting force conducting rod group 320 and a third acting force conducting rod group 330 which are arranged side by side, wherein a plurality of conducting rods in the first acting force conducting rod group 310 and a plurality of conducting rods in the third acting force conducting rod group 330 are obliquely arranged, the oblique directions are opposite, and a plurality of conducting rods in the second acting force conducting rod group 320 are vertically arranged; s4: the reinforcing connection members 400 are disposed between the adjacent two of the guide stress structures 300, and the positions of the reinforcing connection members 400 are gradually increased along the rising direction of the plurality of steps 210; s5: filling road base materials into the backfill area 200 in layers, wherein the thickness of each layer of road base materials is 10-20cm; each layer of base material is tamped, and each layer of base material is subjected to compaction degree detection; after a layer of road base material is tamped, a stop block 500 is arranged below each obliquely arranged conductive rod, and the stop block 500 is provided with a bearing surface matched with the lower side surface of the corresponding conductive rod.
Compared with the prior art, the culvert 100-back roadbed treatment construction method provided by the invention has the advantages that the backfill area 200 is excavated to form the step 210 shape when in use, impurities and the like in the backfill area 200 are completely cleaned, the backfill quality of the backfill area 200 is ensured, and then the bottom surface of the backfill area 200 is leveled and water sprinkling and infiltration are carried out; then, each step 210 is provided with a long groove 220, a supporting seat 230 is arranged in the long groove 220, and the supporting seat 230 is firmly fixed on the step 210 by virtue of an extension rod 240 at the lower end of the supporting seat 230, and then, a first acting force conducting rod group 310, a second acting force conducting rod group 320 and a third acting force conducting rod group 330 are arranged at the upper end of each supporting seat 230, wherein a plurality of conducting rods in the first acting force conducting rod group 310 and a plurality of conducting rods in the third acting force conducting rod group 330 are obliquely arranged, and a plurality of conducting rods in the second acting force conducting rod group 320 are vertically arranged and are used; the first force-conducting rod set 310, the second force-conducting rod set 320 and the third force-conducting rod set 330 on the plurality of supporting seats 230 are connected into a whole by using the reinforcing connecting piece 400, meanwhile, the height of each guide stress structure 300 is reduced along with the rising of the step 210, so that the top end positions of the guide stress structures 300 are positioned on the same horizontal plane, the backfill area 200 is filled with road base materials in layers, and each road base material layer is subjected to tamping operation and compaction degree detection; after compacting a layer of roadbed material, a stop block 500 is installed just below each conduction rod which is obliquely arranged, and the corresponding conduction rod has better bearing capacity through the stop block 500. Through the construction mode, the back of the backfilled culvert 100 has stronger bearing capacity and deformation resistance by means of the supporting seat 230 and the first acting force conducting rod group 310, the second acting force conducting rod group 320 and the third acting force conducting rod group 330 which are arranged on the supporting seat 230, and the occurrence of sedimentation phenomenon can be effectively prevented.
After the bottom surface of the backfill area 200 is leveled, the tamping operation is needed, and the raw soil needs to be sprinkled and wetted before the tamping operation, at least 20cm is needed to permeate, so that the compacted compactness is qualified.
Referring to fig. 1, as a specific embodiment of the method for treating and constructing 100 back roadbed of culvert provided by the present invention, a plurality of conductive rods in a first force conductive rod set 310 are arranged in parallel, and a plurality of conductive rods in a third force conductive rod set 330 are arranged in parallel; the angle between each conductive rod in the first force conductive rod set 310 and the horizontal plane is equal to the angle between each conductive rod in the third force conductive rod set 330 and the horizontal plane; the plurality of conductive rods in the first force conductive rod group 310 are arranged in parallel, so that after backfilling the road base material, the plurality of conductive rods in the first force conductive rod group 310 form a whole, when bearing larger impact and extrusion force on the road surface, the plurality of conductive rods in the first force conductive rod group 310 can play a better supporting role together, and similarly, the plurality of conductive rods in the third force conductive rod group 330 are arranged in parallel, so that after backfilling the road base material, the plurality of conductive rods in the third force conductive rod group 330 form a whole, and when bearing larger impact and extrusion force on the road surface, the plurality of conductive rods in the third force conductive rod group 330 can play a better supporting role together. The plurality of conductive rods in the first force conductive rod set 310 may collectively provide a better support function. The plurality of conductive rods in the third force conductive rod group 330 may collectively provide better support when subjected to greater impact and compressive forces on the road surface. The plurality of conductive rods in the first force conductive rod set 310 may collectively provide a better support function. The first force-conducting bar set 310, the second force-conducting bar set 320, and the third force-conducting bar set 330 collectively carry impact forces from multiple directions.
Referring to fig. 1, as a specific embodiment of the method for treating and constructing a culvert 100 back subgrade provided by the present invention, the vertical plane where the axes of the conducting rods in the first acting force conducting rod group 310, the second acting force conducting rod group 320 and the third acting force conducting rod group 330 are located is perpendicular to the vertical plane where the side wall of the culvert 100 is located, and the vertical plane where the axis of the extending rod 240 is located is parallel to the vertical plane where the side wall of the culvert 100 is located; the conductive rods, the reinforcing connecting piece 400 and the roadbed materials in the first acting force conductive rod group 310, the second acting force conductive rod group 320 and the third acting force conductive rod group 330 have stable structures, have good bearing performance in the width direction of the pavement, and are not easy to generate phenomena such as sedimentation.
Referring to fig. 1, as a specific embodiment of the construction method for treating 100 back roadbed of a culvert provided by the present invention, a reinforcing connecting piece 400 is horizontally disposed between two adjacent layers of roadbed materials, a plurality of protruding portions are disposed on an outer side surface of the reinforcing connecting piece 400, and the reinforcing connecting piece 400 is fixedly connected with corresponding conductive rods in a first acting force conductive rod group 310, a second acting force conductive rod group 320 and a third acting force conductive rod group 330; the reinforcing connector 400 fixedly connects the plurality of guiding stress structures 300, so that the plurality of guiding stress structures 300 are connected into a whole and have better supporting capability. The reinforcing connecting pieces 400 are of a strip-shaped structure, the plurality of reinforcing connecting pieces 400 are arranged at intervals from bottom to top, and the lengths of the plurality of reinforcing connecting pieces 400 are gradually increased from bottom to top, so that the plurality of guiding stress structures 300 are firmly connected by the plurality of reinforcing connecting pieces 400. When the reinforcing connecting member 400 is connected to the force guiding structure 300, the reinforcing connecting member 400 is fixedly connected to corresponding conductive rods of the first force conductive rod set 310, the second force conductive rod set 320 and the third force conductive rod set 330 on one supporting seat 230. The reinforcing connection 400 is provided on the outer side thereof with a plurality of protrusions so as to be more firmly connected with the roadbed material.
Referring to fig. 1, as a specific implementation manner of the method for processing and constructing 100 back roadbeds of a culvert, when each layer of roadbed material is compacted, firstly, one end of the roadbed material, which is close to the culvert 100, is compacted, and the compacting width is 80-100cm; one end of each layer of roadbed material, which is close to the side wall of the culvert 100, is provided with an abutting boss, one side of the abutting boss is supported on the side wall of the culvert 100, one side of the abutting boss, which is far away from the culvert 100, is an extrusion inclined surface for tamping, and firstly, one end, which is close to the culvert 100, is tamped, so that good supporting effect of the roadbed material on the culvert 100 is ensured, and meanwhile, damage to the culvert 100 is avoided. The long-strip abutting boss is arranged at one end, close to the side wall of the culvert 100, of each layer of roadbed material, the abutting boss is a right-angle triangular prism, the horizontal plane and the vertical plane are respectively connected to the roadbed material and the side wall of the culvert 100, and the extrusion inclined plane can be used for compacter and firmer connection positions of the roadbed material and the side wall of the culvert 100 in the tamping process of the tamper.
Referring to fig. 1, as a specific implementation manner of the method for treating and constructing 100 back roadbed layers of culvert provided by the invention, before each layer of roadbed material is tamped, sprinkling water on the roadbed base material and enabling water to permeate the roadbed base material; when the road base material is filled, sprinkling water and humidifying the road base material in advance; and after backfilling each layer of road base material, if the backfill is dry material, sprinkling water for permeation is needed, the sprinkling water is small in water consumption and more in times, water is not wasted, the vehicle cost can be saved, and a better effect can be achieved. After sprinkling, each layer of backfill needs to be fully permeated, and then ramming construction can be performed. The roadbed material before filling the backfill area 200 can be pre-sprayed with water, so that the roadbed material has better wetting effect.
Referring to fig. 1, as a specific embodiment of the culvert 100 back subgrade treatment construction method provided by the present invention, the prefabricated support base 230, the first acting force conducting rod set 310, the second acting force conducting rod set 320 and the third acting force conducting rod set 330 are prefabricated, after the support base 230 is installed in the elongated groove 220, the upper end surface of the support base 230 is knocked and hammered, so that the extension rod 240 at the lower end of the support base 230 extends into the bottom surface of the elongated groove 220, and the upper end surface of the support base 230 is horizontally arranged, i.e. the support base 230, the first acting force conducting rod set 310, the second acting force conducting rod set 320 and the plurality of conducting rods in the third acting force conducting rod set 330 are prefabricated, and can be directly installed in the elongated groove 220 without being subsequently installed in the backfill area 200. And after the support base 230 is installed in the elongated groove 220, the upper end surface of the support base 230 is uniformly hit by using the hit hammer, so that the support base 230 is accurately and flush installed in the elongated groove 220 of the backfill area 200.
Referring to fig. 1, as a specific embodiment of the method for treating and constructing a culvert 100 back subgrade provided by the present invention, in S5, when a road base material is filled to be level with the top end of a guiding stress structure 300, installing a plurality of arc-shaped supporting rods spanning the culvert 100 above the culvert 100, connecting two ends of the arc-shaped supporting rods with the upper ends of the conducting rods in a second acting force conducting rod group 320 near the culvert 100 in backfill areas 200 respectively located at two sides of the culvert 100, then filling the road base material, a water stabilizing layer and tamping; the road base material covers the arc stay bars; the top of the arc stay bar is higher than the top surface of the culvert 100, and two ends of the arc stay bar are respectively connected with the upper ends of the conduction rods at two sides of the culvert 100, so that an arched supporting structure is formed. The plurality of arc stay bars are uniformly arranged along the length direction of the culvert 100, then the road base materials are continuously filled in layers and tamped, and after the roadbed materials completely cover the arc stay bars, the water stabilization layer is paved and tamped.
Preferably, the arc stay bar comprises an arc sleeve and a plurality of arc reinforcing steel bars arranged in the arc sleeve, the upper end of a conductive rod connected with the arc stay bar is provided with a connecting hole, and the end parts of the arc reinforcing steel bars are arranged in the connecting hole and are connected in a sealing way; the arc sleeve wraps the plurality of arc steel bars, the length of the arc sleeve is slightly smaller than that of the arc steel bars, and the end parts of the arc steel bars are respectively installed in the connecting holes at the upper ends of the conductive rods and are in sealing connection.
Referring to fig. 1, as a specific embodiment of the method for processing and constructing 100 back roadbed of culvert provided by the invention, the lower end of a stop block 500 is supported on a rammed roadbed base material, a containing hole is formed in the stop block 500, and roadbed material is filled in the containing hole; after the stopper 500 is mounted on the tamped road base material, the road base material of the upper layer is filled again, and the road base material enters the accommodating hole and passes through the accommodating hole, so that the stopper 500 is mounted more firmly.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a culvert bench back roadbed treatment construction method which is characterized in that the method comprises the following steps:
s1: arranging a plurality of outwardly extending steps in backfill areas on two sides of a culvert, cleaning sundries in the backfill areas, leveling the bottom surface of the backfill areas, and sprinkling water on each step for wetting;
s2: a long strip groove is formed in each step, the length direction of the long strip groove is consistent with the length direction of the culvert, a supporting seat is fixedly arranged on the long strip groove, and an extension rod extending into the ground of the backfill area is arranged at the lower end of the supporting seat;
s3: mounting guide stress structures on the support seats, wherein the heights of the top ends of the guide stress structures are the same; the guide stress structure comprises a first acting force conducting rod group, a second acting force conducting rod group and a third acting force conducting rod group which are arranged side by side, wherein a plurality of conducting rods in the first acting force conducting rod group and a plurality of conducting rods in the third acting force conducting rod group are obliquely arranged and are opposite in inclination direction, and a plurality of conducting rods in the second acting force conducting rod group are vertically arranged;
s4: a reinforcing connecting piece is arranged between two adjacent guide stress structures, and the positions of the reinforcing connecting pieces are gradually increased along the rising directions of a plurality of steps;
s5: filling road base materials into the backfill area in layers, wherein the thickness of each layer of road base materials is 10-20cm; each layer of base material is tamped, and each layer of base material is subjected to compaction degree detection; after a layer of road base material is tamped, a stop block is arranged below each obliquely arranged conductive rod, and the stop block is provided with a bearing surface matched with the lower side surface of the corresponding conductive rod.
2. The culvert bench back roadbed processing construction method of claim 1, wherein a plurality of conductive rods in the first force conductive rod group are arranged in parallel, and a plurality of conductive rods in the third force conductive rod group are arranged in parallel; the included angle between each conducting rod in the first acting force conducting rod group and the horizontal plane is equal to the included angle between each conducting rod in the third acting force conducting rod group and the horizontal plane.
3. The culvert bench back roadbed processing construction method of claim 2, wherein the vertical plane of the axes of the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group is perpendicular to the vertical plane of the side wall of the culvert, and the vertical plane of the axes of the extension rods is parallel to the vertical plane of the side wall of the culvert.
4. The culvert bench back roadbed processing construction method of claim 1, wherein the reinforcing connecting piece is horizontally arranged and is positioned between two adjacent layers of roadbed materials, a plurality of protruding parts are arranged on the outer side face of the reinforcing connecting piece, and the reinforcing connecting piece is fixedly connected with corresponding conducting rods in the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group.
5. The culvert bench back roadbed processing construction method of claim 1, wherein when each layer of roadbed material is compacted, one end of the roadbed material close to a culvert is firstly compacted, and the compacted width is 80-100cm; one end of each layer of roadbed material, which is close to the side wall of the culvert, is provided with an abutting boss, one side of the abutting boss is supported on the side wall of the culvert, and one side of the abutting boss, which is far away from the culvert, is an extrusion inclined surface for tamping.
6. The culvert bench back roadbed processing construction method of claim 1, wherein before each layer of roadbed material is tamped, water is sprayed on the roadbed base material and water permeates the roadbed base material; when the road base material is filled, sprinkling and humidifying are carried out on the road base material in advance.
7. The culvert bench back roadbed processing construction method of claim 1, wherein the support base and the first acting force conducting rod group, the second acting force conducting rod group and the third acting force conducting rod group are prefabricated, the support base is installed in the long-strip groove, and after the upper end face of the support base is knocked by knocking and hammering, the extension rod at the lower end of the support base extends into the bottom face of the long-strip groove, and the upper end face of the support base is horizontally arranged.
8. The culvert bench back roadbed processing construction method according to claim 1, wherein in S5, when the road base material is filled to be level with the top end of the guiding stress structure, installing a plurality of arc-shaped supporting rods crossing the culvert above the culvert, wherein two ends of the arc-shaped supporting rods are connected with the upper ends of the conductive rods in the second acting force conductive rod group which are respectively positioned in backfill areas at two sides of the culvert and close to the culvert, and then filling the road base material, the water stabilizing layer and tamping in sequence; the road base material covers the arc stay bars.
9. The culvert bench back roadbed processing construction method of claim 8, wherein the arc supporting rod comprises an arc sleeve and a plurality of arc reinforcing bars installed in the arc sleeve, a connecting hole is formed in the upper end of the conducting rod connected with the arc supporting rod, and the end parts of the arc reinforcing bars are installed in the connecting hole and are in sealing connection.
10. The culvert bench back roadbed processing construction method of claim 1, wherein the lower end of the stop block is supported on the tamped roadbed base material, a containing hole is formed in the stop block, and the roadbed material is filled in the containing hole.
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| CN202310579597.9A CN116377781B (en) | 2023-05-22 | 2023-05-22 | Culvert bench back roadbed treatment construction method |
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Effective date of registration: 20230913 Address after: 066000 North of Jiangjiawa Village, Duzhuang Town, Haigang District, Qinhuangdao City, Hebei Province Patentee after: Hebei Xichang Testing Technology Co.,Ltd. Address before: 066000 No. 151, Hongqi Road, Haigang District, Qinhuangdao City, Hebei Province Patentee before: Hebei Jiaotou road and bridge construction and Development Co.,Ltd. |