CN206289479U - One kind improvement highway subgrade structure - Google Patents
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- CN206289479U CN206289479U CN201621371913.5U CN201621371913U CN206289479U CN 206289479 U CN206289479 U CN 206289479U CN 201621371913 U CN201621371913 U CN 201621371913U CN 206289479 U CN206289479 U CN 206289479U
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- 229920001971 elastomer Polymers 0.000 abstract description 37
- 239000005060 rubber Substances 0.000 abstract description 37
- 239000002344 surface layer Substances 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000004575 stone Substances 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 19
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 16
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- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
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- Road Paving Structures (AREA)
Abstract
本实用新型公开了一种改良公路路基结构，包括公路本体，所述公路本体的底端为垫层，所述垫层的上端铺设有SBS橡胶层，所述SBS橡胶层的上端铺设有基层，所述基层的上端铺设有面层，所述面层的上端的左右两侧设有路牙石，所述公路本体的底端的左右两侧设有纵向排水沟；该改良公路路基结构，SBS橡胶层，可明显改进耐负载性能，确保保温性能的持久和稳定，并传递和扩散由基层传来的荷载应力，保证基层在容许应力范围内工作，提高了公路本体的使用寿命，具有广阔的应用前景。
The utility model discloses an improved road subgrade structure, which comprises a road body, the bottom of the road body is a cushion layer, an SBS rubber layer is laid on the upper end of the cushion layer, and a base layer is laid on the upper end of the SBS rubber layer. A surface layer is laid on the upper end of the base layer, curb stones are provided on the left and right sides of the upper end of the surface layer, and longitudinal drainage ditches are provided on the left and right sides of the bottom end of the road body; the improved road subgrade structure, SBS rubber layer , can significantly improve the load resistance performance, ensure the durability and stability of the thermal insulation performance, and transfer and diffuse the load stress from the base layer, ensure that the base layer works within the allowable stress range, improve the service life of the road body, and have broad application prospects .
Description
技术领域technical field
本实用新型涉及公路建设技术领域，具体为一种改良公路路基结构。The utility model relates to the technical field of road construction, in particular to an improved road bed structure.
背景技术Background technique
由于我国地域幅员辽阔，所以在高速公路的建设过程中会遇到多种特殊土，对特殊土的研究和治理对于公路建设有着至关重要的作用。由于特殊土性质和道路结构物的影响，路基内部会出现热积累，使原有路基热平衡状态被破坏，力学性能降低导致变形，影响路基的质量。因此在道路施工铺设垫层时，可以铺设一层SBS材料，从而调节变形协调，保温隔热，对公路主体结构进行保护，延长使用寿命。Due to the vast territory of our country, a variety of special soils will be encountered during the construction of expressways. The research and treatment of special soils play a vital role in highway construction. Due to the influence of special soil properties and road structures, heat will accumulate inside the roadbed, destroying the original heat balance of the roadbed, reducing mechanical properties and causing deformation, affecting the quality of the roadbed. Therefore, when laying the cushion in road construction, a layer of SBS material can be laid to adjust deformation coordination, heat insulation, protect the main structure of the road, and prolong the service life.
传统的特殊土公路路基垫层为碎石，粗砂、砂砾、碎石、煤渣、矿渣等松散颗粒材料，或采用水泥、石灰煤渣稳定的密实垫层。部分采用聚苯乙烯板作为隔温材料，而聚苯乙烯的不足之处在于性脆，冲击强度低，易出现应力开裂，耐热性差及不耐沸水等。由于其分子量过高，因而会出现一定的加工困难。并且随温度升高，刚性、弹性模量、抗拉强度、冲击强度等下降，断裂伸长率较大。The traditional special soil highway subgrade cushion is loose granular materials such as gravel, coarse sand, gravel, crushed stone, cinder, slag, or a dense cushion stabilized by cement and lime cinder. Some polystyrene boards are used as insulation materials, but the disadvantages of polystyrene are brittleness, low impact strength, prone to stress cracking, poor heat resistance and intolerance to boiling water. Due to its high molecular weight, certain processing difficulties will arise. And as the temperature rises, the rigidity, elastic modulus, tensile strength, impact strength, etc. decrease, and the elongation at break is larger.
实用新型内容Utility model content
本实用新型的目的在于提供一种改良公路路基结构，以解决上述背景技术中提出的问题。The purpose of this utility model is to provide an improved highway subgrade structure to solve the problems raised in the above-mentioned background technology.
为实现上述目的，本实用新型提供如下技术方案：一种改良公路路基结构，包括公路本体，所述公路本体的底端为垫层，所述垫层的上端铺设有SBS橡胶层，所述SBS橡胶层的上端铺设有基层，所述基层的上端铺设有面层，所述面层的上端的左右两侧设有路牙石，所述公路本体的底端的左右两侧设有纵向排水沟。In order to achieve the above purpose, the utility model provides the following technical solutions: an improved road subgrade structure, including a road body, the bottom of the road body is a cushion, and an SBS rubber layer is laid on the upper end of the cushion, and the SBS A base layer is laid on the upper end of the rubber layer, a surface layer is laid on the upper end of the base layer, curb stones are provided on the left and right sides of the upper end of the surface layer, and longitudinal drainage ditches are provided on the left and right sides of the bottom end of the road body.
优选的，所述SBS橡胶层的下端设有凸起，所述SBS橡胶层的顶端设有凹槽。Preferably, the lower end of the SBS rubber layer is provided with a protrusion, and the top end of the SBS rubber layer is provided with a groove.
优选的，所述凸起的下端为尖头形设置，所述凹槽为半球形设置。Preferably, the lower end of the protrusion is set in a pointed shape, and the groove is set in a hemispherical shape.
优选的，所述SBS橡胶层的顶端设有凹槽，且两个凸起之间的距离在五十厘米至一百五十厘米之间，且两个凹槽之间的距离在五十厘米至一百五十厘米之间，且相邻的凸起和凹槽为相互交错设置。Preferably, the top of the SBS rubber layer is provided with a groove, and the distance between the two protrusions is between 50 centimeters and 150 centimeters, and the distance between the two grooves is 50 centimeters between 150 and 150 centimeters, and the adjacent protrusions and grooves are arranged alternately.
优选的，所述SBS橡胶层的上端的左右两侧设有与纵向排水沟连通的水管。Preferably, the left and right sides of the upper end of the SBS rubber layer are provided with water pipes communicating with the longitudinal drainage ditch.
与现有技术相比，本实用新型的有益效果是：该改良公路路基结构，SBS橡胶层，可明显改进耐负载性能，确保保温性能的持久和稳定，并传递和扩散由基层传来的荷载应力，保证基层在容许应力范围内工作，提高了公路本体的使用寿命，具有广阔的应用前景。Compared with the prior art, the beneficial effect of the utility model is: the improved roadbed structure, the SBS rubber layer, can significantly improve the load-bearing performance, ensure the durability and stability of the thermal insulation performance, and transfer and spread the load from the base layer Stress, ensure that the base layer works within the allowable stress range, improve the service life of the road body, and has broad application prospects.
附图说明Description of drawings
图1为本实用新型结构切面图；Fig. 1 is a cut-away view of the utility model structure;
图2为本实用新型结构俯视图；Fig. 2 is a top view of the structure of the utility model;
图3为本实用新型SBS橡胶层结构示意图。Fig. 3 is a schematic diagram of the structure of the SBS rubber layer of the present invention.
图中：1公路本体、2垫层、3 SBS橡胶层、4基层、5面层、6路牙石、7凸起、8凹槽、9纵向排水沟、10水管。In the figure: 1 road body, 2 cushion layer, 3 SBS rubber layer, 4 base layer, 5 surface layer, 6 road stone, 7 protrusion, 8 groove, 9 longitudinal drainage ditch, 10 water pipe.
具体实施方式detailed description
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
请参阅图1-3，本实用新型提供一种技术方案：一种改良公路路基结构，包括公路本体1，所述公路本体1的底端为垫层2，所述垫层2的上端铺设有SBS橡胶层3，所述SBS橡胶层3的上端铺设有基层4，所述基层4的上端铺设有面层5，所述面层5的上端的左右两侧设有路牙石6，所述公路本体1的底端的左右两侧设有纵向排水沟9。该改良公路路基结构，在传统的公路结构的垫层2的上端铺设有SBS橡胶层3，SBS橡胶层3S代表苯乙烯，B代表丁二烯，聚合物两端为苯乙烯聚合物链段，中间为丁二烯聚合物链段，形成ABA型的三嵌段共聚物。具有良好的抗氧化能力，SBS苯乙烯类热塑性弹性体是是SBCs中产量最大占70%以上、成本最低、应用较广的一个品种，是以苯乙烯、丁二烯为单体的三嵌段共聚物，兼有塑料和橡胶的特性，被称为“第三代合成橡胶”，与丁苯橡胶相似，SBS可以和水、弱酸、碱等接触，具有优良的拉伸强度，表面摩擦系数大，低温性能好，电性能优良，加工性能好等特性，成为目前消费量最大的热塑性弹性体。SBS在加工应用拥有热固性橡胶无法比拟的优势，加工速度较快，生产能耗低、工艺简单，节省资源，有利于环境保护，SBS橡胶层3，可明显改进耐负载性能，确保保温性能的持久和稳定，并传递和扩散由基层4传来的荷载应力，保证基层4在容许应力范围内工作。Please refer to Figures 1-3, the utility model provides a technical solution: an improved roadbed structure, including a road body 1, the bottom end of the road body 1 is a cushion 2, and the upper end of the cushion 2 is laid with SBS rubber layer 3, the upper end of the SBS rubber layer 3 is laid with a base layer 4, the upper end of the base layer 4 is laid with a surface layer 5, the left and right sides of the upper end of the surface layer 5 are provided with curbstones 6, and the road The left and right sides of the bottom of the main body 1 are provided with longitudinal drains 9 . In this improved roadbed structure, an SBS rubber layer 3 is laid on the upper end of the cushion layer 2 of the traditional road structure. The SBS rubber layer 3S represents styrene, B represents butadiene, and the two ends of the polymer are styrene polymer segments. In the middle is a butadiene polymer segment, forming an ABA-type tri-block copolymer. With good oxidation resistance, SBS styrene-based thermoplastic elastomer is a variety with the largest output accounting for more than 70% of SBCs, the lowest cost and wide application. It is a triblock with styrene and butadiene as monomers. Copolymer, which has the characteristics of both plastic and rubber, is called "third-generation synthetic rubber". Similar to styrene-butadiene rubber, SBS can be in contact with water, weak acid, alkali, etc., has excellent tensile strength, and a large surface friction coefficient , good low temperature performance, excellent electrical performance, good processing performance and other characteristics, it has become the most consumed thermoplastic elastomer at present. SBS has incomparable advantages in processing and application of thermosetting rubber, fast processing speed, low production energy consumption, simple process, resource saving, and environmental protection. SBS rubber layer 3 can significantly improve load resistance and ensure long-lasting thermal insulation performance. and stability, and transfer and spread the load stress from the base layer 4 to ensure that the base layer 4 works within the allowable stress range.
具体地，所述SBS橡胶层3的下端设有凸起7，所述SBS橡胶层3的顶端设有凹槽8。有利于提高了SBS橡胶层3与垫层2和基层4的之间的牢固程度。Specifically, the lower end of the SBS rubber layer 3 is provided with a protrusion 7 , and the top end of the SBS rubber layer 3 is provided with a groove 8 . It is beneficial to improve the firmness between the SBS rubber layer 3 and the cushion layer 2 and the base layer 4 .
具体地，所述凸起7的下端为尖头形设置，所述凹槽8为半球形设置。凸起7的下端为尖头形设置有利于凸起7插入垫层2中，凹槽8为半球形设置有利于使凹槽8填充满基层4材料。Specifically, the lower end of the protrusion 7 is set in a pointed shape, and the groove 8 is set in a hemispherical shape. The lower end of the protrusion 7 is in the shape of a pointed tip, which is beneficial for the insertion of the protrusion 7 into the cushion layer 2, and the hemispherical configuration of the groove 8 is beneficial for filling the groove 8 with the material of the base layer 4.
具体地，所述SBS橡胶层3的顶端设有凹槽8，且两个凸起7之间的距离在五十厘米至一百五十厘米之间，且两个凹槽8之间的距离在五十厘米至一百五十厘米之间，且相邻的凸起7和凹槽8为相互交错设置。多个凸起7和凹槽9进一步提高了SBS橡胶层3与垫层2和基层4的之间的牢固程度。Specifically, the top end of the SBS rubber layer 3 is provided with a groove 8, and the distance between the two protrusions 7 is between 50 centimeters and 150 centimeters, and the distance between the two grooves 8 Between 50 centimeters and 150 centimeters, and adjacent protrusions 7 and grooves 8 are arranged alternately. A plurality of protrusions 7 and grooves 9 further improve the firmness between the SBS rubber layer 3 and the cushion layer 2 and the base layer 4 .
具体地，所述SBS橡胶层3的上端的左右两侧设有与纵向排水沟9连通的水管10。水管10有利于将下渗到SBS橡胶层3的上端的雨水排除。Specifically, water pipes 10 communicating with the longitudinal drains 9 are provided on the left and right sides of the upper end of the SBS rubber layer 3 . The water pipe 10 is beneficial to drain the rainwater that seeps down to the upper end of the SBS rubber layer 3 .
该改良公路路基结构，在传统的公路结构的垫层2的上端铺设有SBS橡胶层3，SBS橡胶层3S代表苯乙烯，B代表丁二烯，聚合物两端为苯乙烯聚合物链段，中间为丁二烯聚合物链段，形成ABA型的三嵌段共聚物。具有良好的抗氧化能力，SBS苯乙烯类热塑性弹性体是是SBCs中产量最大占70%以上、成本最低、应用较广的一个品种，是以苯乙烯、丁二烯为单体的三嵌段共聚物，兼有塑料和橡胶的特性，被称为“第三代合成橡胶”，与丁苯橡胶相似，SBS可以和水、弱酸、碱等接触，具有优良的拉伸强度，表面摩擦系数大，低温性能好，电性能优良，加工性能好等特性，成为目前消费量最大的热塑性弹性体。SBS在加工应用拥有热固性橡胶无法比拟的优势，加工速度较快，生产能耗低、工艺简单，节省资源，有利于环境保护，SBS橡胶层3，可明显改进耐负载性能，确保保温性能的持久和稳定，并传递和扩散由基层4传来的荷载应力，保证基层4在容许应力范围内工作，提高了公路本体1的使用寿命；SBS橡胶层3的下端设有凸起7，所述SBS橡胶层3的顶端设有凹槽8，有利于提高了SBS橡胶层3与垫层2和基层4的之间的牢固程度；凸起7的下端为尖头形设置有利于凸起7插入垫层2中，凹槽8为半球形设置有利于使凹槽8填充满基层4材料；多个凸起7和凹槽9进一步提高了SBS橡胶层3与垫层2和基层4的之间的牢固程度；水管10有利于将下渗到SBS橡胶层3的上端的雨水排除。因此该改良公路路基结构，SBS橡胶层3，可明显改进耐负载性能，确保保温性能的持久和稳定，并传递和扩散由基层4传来的荷载应力，保证基层4在容许应力范围内工作，提高了公路本体1的使用寿命，具有广阔的应用前景。In this improved roadbed structure, an SBS rubber layer 3 is laid on the upper end of the cushion layer 2 of the traditional road structure. The SBS rubber layer 3S represents styrene, B represents butadiene, and the two ends of the polymer are styrene polymer segments. In the middle is a butadiene polymer segment, forming an ABA-type tri-block copolymer. With good oxidation resistance, SBS styrene-based thermoplastic elastomer is a variety with the largest output accounting for more than 70% of SBCs, the lowest cost and wide application. It is a triblock with styrene and butadiene as monomers. Copolymer, which has the characteristics of both plastic and rubber, is called "third-generation synthetic rubber". Similar to styrene-butadiene rubber, SBS can be in contact with water, weak acid, alkali, etc., has excellent tensile strength, and a large surface friction coefficient , good low temperature performance, excellent electrical performance, good processing performance and other characteristics, it has become the most consumed thermoplastic elastomer at present. SBS has incomparable advantages in processing and application of thermosetting rubber, fast processing speed, low production energy consumption, simple process, resource saving, and environmental protection. SBS rubber layer 3 can significantly improve load resistance and ensure long-lasting thermal insulation performance. and stability, and transmit and diffuse the load stress transmitted from the base layer 4, ensure that the base layer 4 works within the allowable stress range, and improve the service life of the road body 1; the lower end of the SBS rubber layer 3 is provided with a protrusion 7, the SBS The top of the rubber layer 3 is provided with a groove 8, which is conducive to improving the firmness between the SBS rubber layer 3, the cushion layer 2 and the base layer 4; the lower end of the protrusion 7 is pointed to facilitate the insertion of the protrusion 7 into the pad In the layer 2, the groove 8 is hemispherically arranged to help the groove 8 be filled with the material of the base layer 4; a plurality of protrusions 7 and grooves 9 further improve the contact between the SBS rubber layer 3 and the cushion layer 2 and the base layer 4. Degree of firmness; the water pipe 10 is conducive to removing the rainwater that seeps down to the upper end of the SBS rubber layer 3 . Therefore, the improved road subgrade structure, the SBS rubber layer 3, can significantly improve the load resistance performance, ensure the durability and stability of the thermal insulation performance, and transmit and diffuse the load stress transmitted from the base layer 4, ensuring that the base layer 4 works within the allowable stress range, The service life of the road body 1 is improved and has broad application prospects.
尽管已经示出和描述了本实用新型的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.
Claims (5)
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| CN201621371913.5U CN206289479U (en) | 2016-12-14 | 2016-12-14 | One kind improvement highway subgrade structure |
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| CN201621371913.5U Expired - Fee Related CN206289479U (en) | 2016-12-14 | 2016-12-14 | One kind improvement highway subgrade structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485234A (en) * | 2019-08-29 | 2019-11-22 | 苏州交通工程集团有限公司 | A kind of reinforcement subgrade and pavement of anti-ponding |
| CN111218870A (en) * | 2019-11-22 | 2020-06-02 | 中国一冶集团有限公司 | New and old roadbed splicing structure for road widening and construction method thereof |
| CN112482115A (en) * | 2020-11-25 | 2021-03-12 | 云南农业大学 | Anti-frost heaving roadbed structure and construction method thereof |
-
2016
- 2016-12-14 CN CN201621371913.5U patent/CN206289479U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485234A (en) * | 2019-08-29 | 2019-11-22 | 苏州交通工程集团有限公司 | A kind of reinforcement subgrade and pavement of anti-ponding |
| CN111218870A (en) * | 2019-11-22 | 2020-06-02 | 中国一冶集团有限公司 | New and old roadbed splicing structure for road widening and construction method thereof |
| CN112482115A (en) * | 2020-11-25 | 2021-03-12 | 云南农业大学 | Anti-frost heaving roadbed structure and construction method thereof |
| CN112482115B (en) * | 2020-11-25 | 2022-03-22 | 云南农业大学 | A frost heave-resistant subgrade structure and construction method thereof |
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