CN113699845A - Construction method of highway subgrade with air-raid shelter - Google Patents
Construction method of highway subgrade with air-raid shelter Download PDFInfo
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- CN113699845A CN113699845A CN202111068059.0A CN202111068059A CN113699845A CN 113699845 A CN113699845 A CN 113699845A CN 202111068059 A CN202111068059 A CN 202111068059A CN 113699845 A CN113699845 A CN 113699845A
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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
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/04—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
- E04H9/10—Independent shelters; Arrangement of independent splinter-proof walls
- E04H9/12—Independent shelters; Arrangement of independent splinter-proof walls entirely underneath the level of the ground, e.g. air-raid galleries
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/40—Miscellaneous comprising stabilising elements
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
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- Business, Economics & Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a construction method of a highway subgrade with air holes, which comprises the following steps: constructing a foundation treatment structure on the foundation on one side of the constructed soil subgrade; building a gas-tight cavity on the substrate processing structure; the construction method can ensure that the air-raid shelter is stably arranged in the roadbed, and realizes the secondary utilization of the roadbed space.
Description
Technical Field
The invention relates to the technical field of road engineering, in particular to a highway subgrade construction method with air holes.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the rapid development of traffic infrastructure, the number of non-agricultural land is rapidly increased, and the population pressure of land is increasing. Therefore, in the future traffic infrastructure planning construction, the engineering construction and the land occupation, the environment and the cultural relic protection are reasonably coordinated, the efficient intensive land-saving technology is developed, the construction space is comprehensively utilized, and the rapid development of green traffic is greatly promoted, which becomes a necessary development trend.
In order to maximize space utilization, underground structures are greatly popularized and applied in city construction in recent years, including underground parking lots, civil air defense malls, air holes and the like, and great social and economic benefits are obtained. The highway subgrade has large floor area and large earth consumption, and if the highway subgrade can be combined with the construction of a cavity, the space inside the subgrade can be fully utilized, a large amount of storage space is provided for military combat readiness, pipeline layout, agricultural production, road maintenance and the like, a large amount of earth is saved, and the highway subgrade has a remarkable application prospect. However, the inventor finds that the traditional roadbed filling material is discrete soil particles, so that the roadbed has heavy self weight and poor integrity, the influence of roadbed construction mechanical vibration on a lower structure is remarkable, and the practicability is poor when roadbed air-raid shelter construction is carried out.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a highway subgrade construction method with air holes, which enables the air holes to be arranged in the highway subgrade and does not influence the air holes during the construction of the highway subgrade.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the invention provides a highway subgrade construction method with air holes, which comprises the following steps:
constructing a foundation treatment structure on the foundation on one side of the constructed soil subgrade;
building a gas-tight cavity on the substrate processing structure;
and filling the foam light soil subgrade layer by layer at one side of the soil subgrade, which is provided with the air-raid shelter, so that the air-raid shelter is buried in the foam light soil subgrade, and the inner space of the air-raid shelter can be communicated with the outer space of the foam light soil subgrade.
Optionally, the construction method of the substrate processing structure includes: and paving a gravel backfill layer on the foundation on one side of the constructed soil roadbed, and constructing a drainage structure on the gravel backfill layer.
Optionally, drainage structures includes along two escape canals of the vertical setting of road bed, and the escape canal setting is equipped with a plurality of drain pipes along the horizontal both ends of road bed at rubble backfill layer between two escape canals, drain pipe and escape canal intercommunication, lay the permeable bed between two escape canals, and the intraformational hydroenergy that permeates water can get into the drain pipe to utilize the drain pipe to converge water to the escape canal.
Optionally, the permeable layer is laid by graded crushed stones.
Optionally, the building method of the air-raid shelter main body structure comprises the following steps: the method comprises the steps of building an air-raid shelter side wall on a gravel backfill layer, building a bottom plate at the bottom of the side wall, building a top plate at the top of the side wall to form an air-raid shelter main structure, and installing an air-raid shelter facility inside the air-raid shelter main structure.
Optionally, the top plate is an arched top plate, a light foam soil layer is poured on the upper surface of the arched top plate, and the upper surface of the light foam soil layer is leveled.
Optionally, an energy absorption layer is filled on the upper surface of the foam light soil layer.
Optionally, the energy absorption layer is formed by laying an EPS energy absorption material.
Optionally, the main structure of the air-raid shelter is of a reinforced concrete structure or a steel structure.
Optionally, before the foam light soil is filled in the space between the main body structure of the air-raid shelter and the constructed soil subgrade, a step structure is excavated on the side surface of the soil subgrade, and an anchor rod is inserted into the step surface.
The invention has the beneficial effects that:
1. the roadbed construction method of the invention fills foam light soil between the main structure of the air-raid shelter and the soil roadbed, the foam light soil and the soil roadbed jointly form the whole roadbed, the foam light soil has the technical advantages of light self weight, good integrity, no rolling vibration, heat preservation, moisture protection, excellent shock absorption performance and the like, and the foam light soil can be used as a filling material, can reduce the overlying load of the top plate of the main structure of the air-raid shelter, keep the stress balance of the main body of the air-raid shelter, maintain the stability of the structure of the air-raid shelter, enable the air-raid shelter to be arranged in the roadbed, realize the secondary development and utilization of the inner space of the roadbed, has high space utilization rate, and can ensure the proper temperature and humidity in the air-raid shelter by using the heat preservation and moisture protection function of the foam light soil, can be used as military supplies, civil storage space, temporary refuge area and maintenance construction stockpiling area, and can be used as an underground comprehensive pipe gallery, the high utilization of underground space is realized.
2. According to the roadbed construction method, the side walls, the bottom plate and the top plate of the air-raid shelter main body structure are all of the reinforced concrete structure or the reinforced structure, prefabrication in advance can be conducted, hoisting construction can be conducted, the construction speed is high, the construction period is short, the self-standing performance of the foam light soil is strong, construction is simple and convenient, the large-area occupied area of a construction site is reduced, and consumption of manpower and material resources is reduced.
3. According to the roadbed construction method, the foam light soil layer and the energy absorption layer are arranged above the main structure of the air-raid shelter, so that the influence of roadbed construction on the air-raid shelter can be further reduced, and the stability of the air-raid shelter is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a flow chart of a construction method according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a roadbed in the embodiment 1 of the invention;
FIG. 3 is a schematic structural diagram of a main body of an air-raid shelter in accordance with embodiment 1 of the present invention;
the soil-based high-density concrete is characterized by comprising 1: a soil roadbed, 2: a foundation, 3: a gravel backfill layer, 4: a drainage ditch, 5: a permeable layer, 6: a cavity, 6-1: a side wall, 6-2: a bottom plate, 6-3: a top plate, 7: a foam light soil layer, 8: an energy absorption layer, 9: an anchor rod and 10: a foam light soil roadbed.
Detailed Description
Example 1
The embodiment discloses a construction method of a highway subgrade with air holes, wherein the highway subgrade is formed by a soil subgrade and a foam light soil subgrade, and as shown in figures 1-2, the construction method comprises the following steps:
step 1: the construction of the soil roadbed 1 is carried out by adopting the existing highway roadbed construction method, and the detailed description is omitted.
Step 2: and constructing a base treatment structure on the foundation 2 on one side of the soil subgrade, which is used for arranging the air-raid shelter, and using the base treatment structure as a bearing structure of the air-raid shelter.
As shown in fig. 3, the substrate treating structure includes a backfill layer and a drainage structure disposed on the backfill layer.
The backfill layer is a gravel backfill layer 3 and is formed by paving gravel with a set grade, and the bearing capacity requirement is met. The section of the gravel backfill layer is of a U-shaped structure, and a construction groove for constructing a drainage structure is formed in the gravel backfill layer.
Drainage structures includes two escape canals 4 along the vertical setting of highway subgrade, the escape canal is built by laying bricks or stones by the concrete and is formed, the escape canal sets up in rubble backfill layer along the horizontal both sides of highway subgrade, and the escape canal laminating sets up on the lateral part groove face in construction groove, and the degree of depth in construction groove is greater than the degree of depth in escape canal, can prevent that the rainwater from flowing backward.
Be provided with a plurality of drain pipes that transversely set up along the highway subgrade between two escape canals, the drain pipe both ends communicate with two escape canals respectively.
After the drainage structure is constructed on the gravel backfill layer, a permeable layer 5 is laid between the two drainage ditches, and the drainage pipe is buried in the permeable layer to be used as a bearing mechanism.
The permeable layer is formed by paving graded broken stones.
Through setting up drainage structures, can strengthen the air-raid shelter drainage performance, maintain the drying of hole to realize the transition between ground and the air-raid shelter major structure, increase the durability and the life of air-raid shelter.
And step 3: and (3) building an air-raid shelter 6 on the base processing structure, firstly building a main body structure of the air-raid shelter, and then installing internal facilities of the air-raid shelter.
The main structure of the air-raid shelter comprises side walls 6-1 which are vertically arranged, the side walls are three, the three side walls are enclosed to form a structure with one open end, the side walls are placed on the upper surface of a gravel backfill layer, bosses are arranged at the bottoms of the side walls, bottom plates 6-2 are placed at the bosses, a placing groove is formed in the top of each side wall, and a top plate 6-3 can be placed at the top of each side wall through the placing groove, so that the side walls, the top plates and the bottom plates are utilized to jointly form the main structure of the air-raid shelter.
When the main structure of the air-raid shelter is built, firstly, three side walls are built on the upper surface of the gravel backfill layer, then, a bottom plate is built at the bottom of each side wall, and a top plate is built at the top of each side wall.
Further, in order to improve the bearing capacity of the top plate, the top plate adopts an arch top plate, preferably a continuous arch structure, and the distance between arch columns is 5m-8 m.
The side wall, the top plate and the bottom plate are all of a reinforced concrete structure or a steel structure and can be prefabricated in a factory, the side wall, the top plate and the bottom plate can be transported to a construction site when in use, an assembly type construction mode can be adopted, the side wall, the top plate and the bottom plate are installed and built quickly and are integrally connected, the construction speed is high, and the construction period is short.
And after the arched top plate is constructed, filling foam light soil on the upper surface of the arched top plate to form a foam light soil layer 7, and leveling the upper surface of the foam light soil layer. The foamed light soil is mixed and pumped in a construction site.
After the upper surface of the foam light soil layer is leveled, an energy absorption layer 8 is constructed on the upper surface of the foam light soil layer, preferably, the energy absorption layer is formed by laying EPS energy absorption materials, and the EPS energy absorption materials have moderate rigidity and good compression performance and play a role in stress transition of a reinforced concrete structure of the air-raid shelter main body and a foam light soil structure covered above the reinforced concrete structure in the later period.
After the construction of the main structure of the air-raid shelter is finished, a ventilation facility and a lighting facility are installed in the air-raid shelter, preferably, the lighting facility adopts a solar lighting facility, an opening and closing door is installed at the opening of the main structure of the air-raid shelter, and the opening and closing door adopts a push-pull type hole door.
And 4, step 4: firstly, excavating a step structure on the side surface of a constructed soil roadbed to form a plurality of step surfaces, inserting anchor rods 9 into the step surfaces, then filling foam light soil on one side of the soil roadbed layer by layer from bottom to top until the top surface of the filled foam light soil is flush with the top surface of the soil roadbed to form a foam light soil roadbed 10, wherein the foam light soil roadbed and the soil roadbed jointly form the whole road roadbed. And (3) mixing and pumping the filled foam light soil on a construction site, wherein the air-raid shelter built in the step (3) is positioned inside the foam light soil subgrade, and the outer side boundary of the filled foam light soil subgrade is flush with the outer side boundary of the air-raid shelter, so that the inner space of the air-raid shelter can be communicated with the outer space of the foam light soil subgrade, and personnel can conveniently enter and leave the air-raid shelter.
The foam light soil is filled from bottom to top in a layered mode, and the foam light soil is fixedly combined with the soil roadbed through anchor rods.
And after the foam light soil is filled to the upper surface which is flush with the upper surface of the soil roadbed, stopping filling, and forming the highway roadbed by the foam light soil roadbed and the soil roadbed so as to finish the construction of the highway roadbed.
According to the construction method, the foam light soil has the technical advantages of light self weight, good integrity, no need of rolling vibration, heat preservation, moisture prevention, good damping performance and the like, and can be used as a filling material to reduce the overlying load of the top plate of the air-raid shelter main body structure, keep the stress balance of the air-raid shelter main body and maintain the stability of the air-raid shelter structure, so that the air-raid shelter arranged in the highway subgrade can be possible, and the secondary development and utilization of the subgrade space can be realized.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A construction method of a highway subgrade with air holes is characterized by comprising the following steps:
constructing a foundation treatment structure on the foundation on one side of the constructed soil subgrade;
building a gas-tight cavity on the substrate processing structure;
and filling a foam light soil subgrade at one side of the soil subgrade provided with the air-raid shelter so that the air-raid shelter is buried in the foam light soil subgrade, and the inner space of the air-raid shelter can be communicated with the outer space of the foam light soil subgrade.
2. A method of constructing a roadbed having an air-raid shelter as claimed in claim 1, wherein said base treatment structure is constructed by: and paving a gravel backfill layer on the foundation on one side of the constructed soil roadbed, and constructing a drainage structure on the gravel backfill layer.
3. A method of constructing a road bed with an air-raid shelter according to claim 2, wherein the drainage structure comprises two drainage ditches arranged in a longitudinal direction of the road bed, the drainage ditches are arranged at both ends of the crushed stone backfill layer in a transverse direction of the road bed, a plurality of drainage pipes are arranged between the two drainage ditches, the drainage pipes are communicated with the drainage ditches, a water permeable layer is laid between the two drainage ditches, and water in the water permeable layer can enter the drainage pipes and can be converged to the drainage ditches by the drainage pipes.
4. A method of constructing a roadbed with an air-raid shelter as claimed in claim 3, wherein said water-permeable layer is formed by laying graded crushed stone.
5. A method for constructing a highway subgrade with an air-raid shelter according to claim 1, wherein the method for constructing the air-raid shelter comprises the following steps: the method comprises the steps of building an air-raid shelter side wall on a gravel backfill layer, building a bottom plate at the bottom of the side wall, building a top plate at the top of the side wall to form an air-raid shelter main structure, and installing an air-raid shelter facility inside the air-raid shelter main structure.
6. The method of constructing a roadbed with an air-raid shelter as claimed in claim 5, wherein the roof is an arch roof, and a light foam soil layer is poured on the upper surface of the arch roof and the upper surface of the light foam soil layer is leveled.
7. A method of constructing a roadbed having a cavity according to claim 6, wherein an energy absorption layer is formed on the upper surface of the foamed lightweight soil layer.
8. A method of constructing a roadbed with an air cavity according to claim 7, wherein the energy absorption layer is made of EPS energy absorption material.
9. The method of constructing a roadbed with an air-raid shelter as claimed in claim 1, wherein the main structure of the air-raid shelter is a reinforced concrete structure or a steel structure.
10. A method of constructing a roadbed with an air-raid shelter as claimed in claim 1, wherein before the foamed lightweight roadbed is filled, a step structure is excavated on the side surface of the roadbed, and an anchor rod is inserted into the step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111068059.0A CN113699845A (en) | 2021-09-13 | 2021-09-13 | Construction method of highway subgrade with air-raid shelter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111068059.0A CN113699845A (en) | 2021-09-13 | 2021-09-13 | Construction method of highway subgrade with air-raid shelter |
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| CN113699845A true CN113699845A (en) | 2021-11-26 |
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| CN202111068059.0A Pending CN113699845A (en) | 2021-09-13 | 2021-09-13 | Construction method of highway subgrade with air-raid shelter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204570720U (en) * | 2015-02-08 | 2015-08-19 | 山西省交通科学研究院 | A kind of widening of subgrade culvert foundation |
| CN105586818A (en) * | 2015-12-18 | 2016-05-18 | 江苏兆通工程技术有限公司 | Light foam layer for widening roadbed of road and construction process of light foam layer |
| CN209244368U (en) * | 2018-12-18 | 2019-08-13 | 航天建筑设计研究院有限公司 | A kind of protective barrier wall |
| CN212426806U (en) * | 2020-04-07 | 2021-01-29 | 杨占义 | High embankment culvert of filling off-loading structure |
| CN112323658A (en) * | 2020-11-30 | 2021-02-05 | 衡水奇佳工程材料有限公司 | Inter-mountain road landscape ecological structure based on corrugated plates and construction method |
| CN212642730U (en) * | 2020-06-16 | 2021-03-02 | 西安市政设计研究院有限公司 | Collapsible loess area tunnel passes people's air defense structure |
| CN113322844A (en) * | 2021-05-07 | 2021-08-31 | 交通运输部公路科学研究所 | Avalanche impact resistant shed tunnel with prefabricated retaining wall and assembled arch structure and construction method |
-
2021
- 2021-09-13 CN CN202111068059.0A patent/CN113699845A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204570720U (en) * | 2015-02-08 | 2015-08-19 | 山西省交通科学研究院 | A kind of widening of subgrade culvert foundation |
| CN105586818A (en) * | 2015-12-18 | 2016-05-18 | 江苏兆通工程技术有限公司 | Light foam layer for widening roadbed of road and construction process of light foam layer |
| CN209244368U (en) * | 2018-12-18 | 2019-08-13 | 航天建筑设计研究院有限公司 | A kind of protective barrier wall |
| CN212426806U (en) * | 2020-04-07 | 2021-01-29 | 杨占义 | High embankment culvert of filling off-loading structure |
| CN212642730U (en) * | 2020-06-16 | 2021-03-02 | 西安市政设计研究院有限公司 | Collapsible loess area tunnel passes people's air defense structure |
| CN112323658A (en) * | 2020-11-30 | 2021-02-05 | 衡水奇佳工程材料有限公司 | Inter-mountain road landscape ecological structure based on corrugated plates and construction method |
| CN113322844A (en) * | 2021-05-07 | 2021-08-31 | 交通运输部公路科学研究所 | Avalanche impact resistant shed tunnel with prefabricated retaining wall and assembled arch structure and construction method |
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