CN207761710U - One kind being used for seasonal frost region tunnel portal section center pipe trench structure - Google Patents
One kind being used for seasonal frost region tunnel portal section center pipe trench structure Download PDFInfo
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- CN207761710U CN207761710U CN201820025402.0U CN201820025402U CN207761710U CN 207761710 U CN207761710 U CN 207761710U CN 201820025402 U CN201820025402 U CN 201820025402U CN 207761710 U CN207761710 U CN 207761710U
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- pipe trench
- center pipe
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- tunnel portal
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- 230000001932 seasonal effect Effects 0.000 title claims 8
- 238000009413 insulation Methods 0.000 claims abstract description 74
- 239000004814 polyurethane Substances 0.000 claims abstract description 36
- 229920002635 polyurethane Polymers 0.000 claims abstract description 35
- 229920000742 Cotton Polymers 0.000 claims abstract description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 16
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 16
- 229920006262 high density polyethylene film Polymers 0.000 claims abstract description 14
- 239000011325 microbead Substances 0.000 claims abstract description 8
- 229920006238 degradable plastic Polymers 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 3
- 229920001903 high density polyethylene Polymers 0.000 claims 1
- 239000004700 high-density polyethylene Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 abstract description 11
- 230000032683 aging Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000004698 Polyethylene Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000011324 bead Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000004746 geotextile Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
本实用新型公开了一种用于季冻区隧道洞口段中心管沟结构，包括中心管沟，所述中心管沟外包有保温棉套管，所述保温棉套管外缠绕有高密度聚乙稀薄膜，所述高密度聚乙稀薄膜外涂抹有密封用的环氧树脂，所述包裹后的中心管沟位于聚氨酯保温板上方，所述中心管沟、聚氨酯保温板之间填充有玻化微珠保温砂浆。本实用新型使用非降解型的塑料绳固定保温棉套管，不仅可降低导热系数，同时还可防止老化脱落；高密度聚乙烯膜外侧均匀涂有E‑44环氧树脂，可以有效的起到密封作用；使用玻化微珠保温砂浆，具有良好的触变性，整体性和抗裂抗风压性能，可提高排水系统的耐久性和实用性。
The utility model discloses a central pipe ditch structure for the entrance section of a tunnel in a seasonally frozen area, comprising a central pipe ditch, the central pipe ditch is covered with a heat-insulating cotton sleeve, and a high-density polyethylene film is wound outside the heat-preserving cotton sleeve , the high-density polyethylene film is coated with epoxy resin for sealing, the center pipe groove after the wrapping is located above the polyurethane insulation board, and vitrified microbeads are filled between the center pipe groove and the polyurethane insulation board Insulation mortar. The utility model uses a non-degradable plastic rope to fix the insulation cotton sleeve, which can not only reduce the thermal conductivity, but also prevent aging and falling off; the outer side of the high-density polyethylene film is evenly coated with E-44 epoxy resin, which can effectively seal Function: The use of vitrified microbead thermal insulation mortar has good thixotropy, integrity, crack resistance and wind pressure resistance, which can improve the durability and practicability of the drainage system.
Description
技术领域technical field
本实用新型属于一种隧道的中心管沟结构，具体涉及一种用于季冻区隧道洞口段中心管沟结构。The utility model belongs to a central pipe ditch structure of a tunnel, in particular to a central pipe ditch structure used in a tunnel entrance section in a seasonally frozen region.
背景技术Background technique
图1是现有技术中常用的隧道中心管沟结构结构图；如图1所示，目前在公路隧道、城市道路隧道、铁路隧道和水底隧道常采用常规隧道排水系统对隧道内积水进行导流，中心管沟一般情况下多采用内径不小于40cm的预制钢筋混凝土圆管的结构形式。Fig. 1 is the structural diagram of the tunnel central pipe ditch commonly used in the prior art; In general, the central pipe trench adopts the structural form of a prefabricated reinforced concrete circular pipe with an inner diameter of not less than 40cm.
根据工程现场实测表明，隧道围岩内冻结线在春融时期会外移，当冻结线外移至隧道二次衬砌外侧的防水层附近时，由于防水层接触到的均是液态水，导致在衬砌薄弱区域或者微裂缝处产生渗漏现象；在其他防水层区域（常为下部防水层），管沟和渗水下排通道周围以固态水分布为主，此时导致上部液态水无法排泄，液态水聚集在衬砌背后形成过大水压，造成衬砌不同程度的开裂，严重降低了衬砌的耐久性。此外，隧道排水管沟和防寒泄水洞的冻结也会给隧道排水带来不利影响。在寒冷和严寒地区的隧道，必须加强隧道的防水工作，方能消除地表水和地下水对隧道造成的危害。According to the actual measurement on the project site, the freezing line in the surrounding rock of the tunnel will move outward during the spring thawing period. When the freezing line moves outward to the vicinity of the waterproof layer outside the secondary lining of the tunnel, the waterproof layer is in contact with liquid water, resulting in Leakage occurs in weak lining areas or micro-cracks; in other waterproof layer areas (usually the lower waterproof layer), solid water is mainly distributed around pipe trenches and seepage drainage channels. At this time, the upper liquid water cannot be drained, and the liquid state Water accumulates behind the lining to form excessive water pressure, which causes the lining to crack to varying degrees and seriously reduces the durability of the lining. In addition, the freezing of tunnel drainage trenches and cold-proof drainage tunnels will also have adverse effects on tunnel drainage. For tunnels in cold and severe cold regions, the waterproofing of the tunnel must be strengthened to eliminate the damage caused by surface water and groundwater to the tunnel.
发明内容Contents of the invention
本实用新型为解决现有技术存在的问题而提出，其目的是提供一种用于季冻区隧道洞口段中心管沟结构。The utility model is proposed to solve the problems existing in the prior art, and its purpose is to provide a central pipe ditch structure for the entrance section of the tunnel in the seasonally frozen region.
本实用新型的技术方案是：一种用于季冻区隧道洞口段中心管沟结构，包括中心管沟，所述中心管沟外包有保温棉套管，所述保温棉套管外缠绕有高密度聚乙稀薄膜，所述高密度聚乙稀薄膜外涂抹有密封用的环氧树脂，所述包裹后的中心管沟位于聚氨酯保温板上方，所述中心管沟、聚氨酯保温板之间填充有玻化微珠保温砂浆。The technical scheme of the utility model is: a central pipe ditch structure for the tunnel entrance section in the seasonally frozen region, including a central pipe ditch, the central pipe ditch is wrapped with a thermal insulation cotton sleeve, and the thermal insulation cotton sleeve is wrapped with a high-density polymer Ethylene film, the high-density polyethylene film is coated with epoxy resin for sealing, the wrapped central pipe groove is located above the polyurethane insulation board, and glass is filled between the central pipe groove and the polyurethane insulation board. Microbead thermal insulation mortar.
所述保温棉套管通过非降解的塑料绳进行固定。The insulation cotton sleeve is fixed by a non-degradable plastic rope.
所述聚氨酯保温板通过暗钉进行固定。The polyurethane insulation board is fixed by dark nails.
所述聚氨酯保温板厚度为20mm。The thickness of the polyurethane insulation board is 20mm.
所述环氧树脂为E-44环氧树脂。Described epoxy resin is E-44 epoxy resin.
所述聚氨酯保温板沿管沟方向铺设。The polyurethane insulation board is laid along the direction of the pipe ditch.
所述聚氨酯保温板固定在初期支护和防水板之间。The polyurethane insulation board is fixed between the primary support and the waterproof board.
本实用新型有益效果如下：The beneficial effects of the utility model are as follows:
本实用新型采用保温棉套管包裹管沟，并使用非降解型绳扣固定位置，提高了保温棉套管的握裹力，确保其保温性能。保温棉套管外侧使用高密度聚乙烯薄膜紧密缠绕。使用聚乙烯膜包裹的管沟，具有良好的防水性，较好的防腐蚀性，可以有效隔绝酸、碱和各种盐类的腐蚀，同时还具有一定的拉伸强度和刚性满足对管沟的形变要求。The utility model uses thermal insulation cotton sleeves to wrap pipe grooves, and uses non-degradable rope buckles to fix the position, which improves the gripping force of thermal insulation cotton sleeves and ensures its thermal insulation performance. The outer side of the insulation cotton sleeve is tightly wound with high-density polyethylene film. The pipe trench wrapped with polyethylene film has good waterproof and corrosion resistance, can effectively isolate the corrosion of acid, alkali and various salts, and also has a certain tensile strength and rigidity to meet the requirements of the pipe trench deformation requirements.
本实用新型使用E-44环氧树脂均匀涂抹在聚乙烯薄膜外侧，环氧树脂具有良好的耐水性，吸水率约0．5％以下，可防止排水管内水流外漏，从而减小对衬砌的腐蚀。环氧树脂具有突出的尺寸稳定性和耐久性，阻碍外界碱性和酸性物质对保温棉套管的侵蚀，为保温棉套管和排水管提供保护。The utility model uses E-44 epoxy resin to spread evenly on the outside of the polyethylene film. The epoxy resin has good water resistance, and the water absorption rate is below 0.5%, which can prevent the leakage of the water flow in the drain pipe, thereby reducing the damage to the lining. corrosion. Epoxy resin has outstanding dimensional stability and durability, hinders the erosion of external alkaline and acidic substances on the insulation cotton sleeve, and provides protection for the insulation cotton sleeve and drain pipe.
本实用新型使用玻化微珠保温砂浆来填充聚乙烯膜包裹的管沟与聚氨酯保温板之间的缝隙，有效起到保温耐水的功能，保证了冬季时期排水系统的正常使用。由于其具有优秀的抗裂抗风压性能，保证了管沟不会产生过大变形而破裂。The utility model uses vitrified microbead thermal insulation mortar to fill the gap between the polyethylene film-wrapped pipe ditch and the polyurethane thermal insulation board, effectively plays the role of thermal insulation and water resistance, and ensures the normal use of the drainage system in winter. Because of its excellent anti-crack and anti-wind pressure performance, it ensures that the pipe trench will not be broken due to excessive deformation.
本实用新型在中心排水管周围采用聚氨酯保温板环绕，聚氨酯保温板材料孔隙率结构稳定，基本上是闭孔结构，不仅保温性能优良，而且抗冻融也好，可确保中心管沟在冬季的正常使用。聚氨酯保温板的平均寿命，在正常使用与维修的条件下，能达到30年以上。能够做到在结构的寿命期正常使用条件下，在干燥、潮湿或电化腐蚀，都不会受到破坏，耐久性强。The utility model is surrounded by polyurethane insulation boards around the central drain pipe. The polyurethane insulation board material has a stable porosity structure and is basically a closed-cell structure. Normal use. The average lifespan of polyurethane insulation boards can reach more than 30 years under normal use and maintenance conditions. It can be used under normal service conditions during the life of the structure, and it will not be damaged in dry, wet or galvanic corrosion, and has strong durability.
附图说明Description of drawings
图1是现有技术中常用隧道的排水系统结构图；Fig. 1 is the structural diagram of the drainage system of a tunnel commonly used in the prior art;
图2是本发明隧道中心管沟结构的结构图；Fig. 2 is a structural diagram of the tunnel center trench structure of the present invention;
图3是本发明中隧道纵向排水盲管位置保温层结构图；Fig. 3 is the structural diagram of the thermal insulation layer at the position of the vertical drainage blind pipe of the tunnel in the present invention;
图4是本发明中隧道Ω型排水管保温层结构图；Fig. 4 is the structural diagram of the insulating layer of the tunnel Ω-type drainage pipe in the present invention;
图5是本发明中隧道排水管平面布置图；Fig. 5 is a planar layout diagram of a tunnel drainage pipe in the present invention;
其中：in:
1：Ⅰ号初期支护 2：Ω型排水管1: No. Ⅰ primary support 2: Ω-type drainage pipe
3：400g/m2土工布 4：PE230S厚防水板3: 400g/ m2 geotextile 4: PE230S thick waterproof board
5：二次衬砌 6：8cm厚PU泡沫塑料型材5: Secondary lining 6: 8cm thick PU foam plastic profile
7：Ⅰ号Φ110HDPE纵向双臂打孔波纹管7: No. Ⅰ Φ110HDPE longitudinal double-arm perforated bellows
8：侧排水沟 9：路面层8: Side drain 9: Pavement layer
10：整平层 11：基层10: Leveling layer 11: Base layer
12：仰拱回填 13：仰拱12: Inverted arch backfill 13: Inverted arch
14：Ⅱ号初期支护 15：中心排水管14: No. Ⅱ initial support 15: Central drainage pipe
16：Φ100泄水孔 17：沉砂检查井16: Φ100 drain hole 17: Sand inspection well
18：无仰拱地段 19：横向排水管18: No inverted arch section 19: Horizontal drainage pipe
20：检查维修孔20: Check the maintenance hole
21：Ⅱ号Φ110HDPE纵向双臂打孔波纹管21: No. Ⅱ Φ110HDPE longitudinal double-arm perforated bellows
22：纵、环向盲管直接弯入侧沟22: The longitudinal and circumferential blind pipes are directly bent into the side ditch
2-1 中心管沟 2-2 保温棉套管2-1 Center pipe groove 2-2 Thermal insulation cotton sleeve
2-3 高密度聚乙稀薄膜 2-4 环氧树脂2-3 HDPE film 2-4 Epoxy resin
2-5 玻化微珠保温砂浆 2-6 聚氨酯保温板。2-5 vitrified bead insulation mortar 2-6 polyurethane insulation board.
具体实施方式Detailed ways
以下，参照附图和实施例对本实用新型进行详细说明：Below, with reference to accompanying drawing and embodiment the utility model is described in detail:
如图1~5所示，一种用于季冻区隧道洞口段中心管沟结构，包括中心管沟2-1，所述中心管沟2-1外包有保温棉套管2-2，所述保温棉套管2-2外缠绕有高密度聚乙稀薄膜2-3，所述高密度聚乙稀薄膜2-3外涂抹有密封用的环氧树脂2-4，所述包裹后的中心管沟2-1位于聚氨酯保温板2-6上方，所述中心管沟2-1、聚氨酯保温板2-6之间填充有玻化微珠保温砂浆2-5。As shown in Figures 1 to 5, a central pipe ditch structure for the tunnel entrance section in the seasonally frozen region includes a central pipe ditch 2-1, and the central pipe ditch 2-1 is covered with a thermal insulation cotton sleeve 2-2. A high-density polyethylene film 2-3 is wrapped around the insulation cotton sleeve 2-2, and an epoxy resin 2-4 for sealing is coated on the outside of the high-density polyethylene film 2-3, and the wrapped central tube The groove 2-1 is located above the polyurethane insulation board 2-6, and the gap between the central pipe groove 2-1 and the polyurethane insulation board 2-6 is filled with vitrified bead insulation mortar 2-5.
所述保温棉套管2-2通过非降解的塑料绳进行固定。The insulation cotton sleeve 2-2 is fixed by a non-degradable plastic rope.
所述聚氨酯保温板2-6通过暗钉进行固定。The polyurethane insulation board 2-6 is fixed by dark nails.
所述聚氨酯保温板2-6厚度为20mm。The thickness of the polyurethane insulation board 2-6 is 20mm.
所述环氧树脂2-4为E-44环氧树脂。The epoxy resin 2-4 is E-44 epoxy resin.
所述聚氨酯保温板2-6沿管沟方向铺设。The polyurethane insulation board 2-6 is laid along the direction of the pipe ditch.
所述聚氨酯保温板2-6固定在Ⅰ号初期支护1和防水板之间。The polyurethane insulation board 2-6 is fixed between the No. 1 primary support 1 and the waterproof board.
所述保温棉套管2-2使用非降解绳扣加以固定，保温棉的厚度根据隧址所在区域的气温决定，尽量使得保温棉套管在接缝处紧密相接。在保温棉套管2-2外侧使用高密度聚乙烯膜2-3紧密缠绕，缠绕完成后均匀涂有E-44环氧树脂。沿管沟方向铺设聚氨酯保温板，使用玻化微珠保温砂浆2-5来填充高密度聚乙烯膜2-3包裹的中心管沟2-1和聚氨酯保温板2-6之间的缝隙。The thermal insulation cotton casing 2-2 is fixed with a non-degradable rope buckle, and the thickness of the thermal insulation cotton is determined according to the temperature in the area where the tunnel is located, so that the thermal insulation cotton sleeves are closely connected at the seams as much as possible. The outer side of the insulation cotton sleeve 2-2 is tightly wound with a high-density polyethylene film 2-3, and evenly coated with E-44 epoxy resin after the winding is completed. Lay the polyurethane insulation board along the direction of the pipe trench, and use vitrified bead insulation mortar 2-5 to fill the gap between the central pipe trench 2-1 wrapped by the high-density polyethylene film 2-3 and the polyurethane insulation board 2-6.
本实用新型的施工步骤如下：Construction steps of the present utility model are as follows:
将处理过的Ω型排水管2固定在厚度为250mm的Ⅰ号初期支护1和400g/m2土工布3之间，沿PE230S厚防水板4外侧设计线路方向铺设至拱脚，在铺设区域安装聚氨酯保温板2-6，使用暗钉固定，玻化微珠保温砂浆2-5用来填充高密度聚乙烯膜2-3包裹的排水管和聚氨酯保温板2-6之间的缝隙。最终与Ⅰ号Φ110HDPE纵向双臂打孔波纹管 7、Ⅱ号Φ110HDPE纵向双臂打孔波纹管21对接，将水流汇聚至纵向导水管。纵向导水管通过纵、环向盲管直接弯入侧沟22，侧排水沟8积水经过无仰拱地段18下方的横向排水管19汇集在中心排水管15，积水通过Φ100泄水孔16进入防寒泄水洞。二次衬砌5铺设完成以后，施工8cm厚PU泡沫塑料型材6，其目的是为衬砌提供保温功能。在厚度为700mm的Ⅱ号初期支护14上方仰拱13的位置进行施工，在仰拱回填12的过程中，铺设横向导水管19，最后铺设基层11、整平层10以及路面层9。在路基中心处预留沉砂检查井17和拱脚位置预留检查维修孔20是为定期观察防排水系统是否正常工作提供便利。Fix the treated Ω-shaped drainage pipe 2 between the No. I initial support 1 with a thickness of 250mm and the 400g/m 2 geotextile 3, and lay it along the direction of the outer design line of the PE230S thick waterproof board 4 to the arch foot. Install the polyurethane insulation board 2-6 and fix it with hidden nails. The vitrified bead insulation mortar 2-5 is used to fill the gap between the drainage pipe wrapped by the high-density polyethylene film 2-3 and the polyurethane insulation board 2-6. Finally, it is docked with No. Ⅰ Φ110HDPE longitudinal double-arm perforated bellows 7 and No. Ⅱ Φ110HDPE longitudinal double-arm perforated corrugated pipe 21 to converge the water flow to the longitudinal aqueduct. The longitudinal aqueduct directly bends into the side ditch 22 through the longitudinal and circumferential blind pipes, and the accumulated water in the side drainage ditch 8 passes through the horizontal drainage pipe 19 below the section 18 without inverts and collects in the central drainage pipe 15, and the accumulated water passes through the Φ100 drain hole 16 Enter the cold-proof drainage hole. After the secondary lining 5 is laid, the thick PU foamed plastic profile 6 of construction 8cm, its purpose is to provide thermal insulation function for the lining. Construction is carried out at the position of the inverted arch 13 above the No. II initial support 14 with a thickness of 700mm. During the process of backfilling the inverted arch 12, lay the horizontal aqueduct 19, and finally lay the base layer 11, the leveling layer 10 and the pavement layer 9. Reserving a grit inspection well 17 and an inspection and maintenance hole 20 at the arch foot position at the center of the subgrade is to provide convenience for regularly observing whether the waterproof and drainage system works normally.
将被保温棉套管包裹的纵向排水管固定在PE230S厚防水板4和厚度为250mm的Ⅰ号初期支护1之间，沿排水管方向铺设聚氨酯保温板2-6，使用暗钉固定，最后使用玻化微珠保温砂浆2-5用以填充高密度聚乙烯膜2-3包裹的排水管和聚氨酯保温板2-6之间的缝隙。Fix the longitudinal drainage pipe wrapped by the insulation cotton sleeve between the PE230S thick waterproof board 4 and the No. 1 initial support 1 with a thickness of 250mm, lay the polyurethane insulation board 2-6 along the direction of the drainage pipe, fix it with hidden nails, and finally use it The vitrified microbead thermal insulation mortar 2-5 is used to fill the gap between the drainage pipe wrapped by the high-density polyethylene film 2-3 and the polyurethane thermal insulation board 2-6.
Ⅰ号Φ110HDPE纵向双臂打孔波纹管7和侧排水沟8是通过横向排水管19将积水汇集到中心排水管沟。其中纵向排水管设置在厚度为700mm的Ⅱ号初期支护14和二次衬砌5之间，侧排水沟8上方覆盖保温板和过滤网，防止管道内滞留杂物产生拥堵，影响排水系统的正常使用。No. 1 Φ110HDPE longitudinal double-arm perforated corrugated pipe 7 and side drainage ditch 8 collect accumulated water to the central drainage pipe ditch through horizontal drainage pipe 19 . Among them, the longitudinal drainage pipe is set between the No. Ⅱ primary support 14 with a thickness of 700mm and the secondary lining 5, and the side drainage ditch 8 is covered with insulation boards and filter screens to prevent debris remaining in the pipes from causing congestion and affecting the normal operation of the drainage system. use.
排水管固定在初级支护与防水板之间，使用暗钉固定20mm厚聚氨酯保温板，保证聚氨酯保温板与初期支护紧密接触。根据安装管沟空间的形状和大小，铺设聚乙烯膜包裹的中心管沟，使其尽量处于设计位置加以固定。最后对聚乙稀薄膜包裹的中心管沟与聚氨酯保温板之间的缝隙，使用玻化微珠保温砂浆进行填充。The drainage pipe is fixed between the primary support and the waterproof board, and the 20mm thick polyurethane insulation board is fixed with hidden nails to ensure that the polyurethane insulation board is in close contact with the primary support. According to the shape and size of the space for installing the pipe trench, lay the central pipe trench wrapped with polyethylene film to fix it at the designed position as much as possible. Finally, the gap between the central pipe groove wrapped in polyethylene film and the polyurethane insulation board is filled with vitrified microbead insulation mortar.
本实用新型采用保温棉套管包裹管沟，并使用非降解型绳扣固定位置，提高了保温棉套管的握裹力，确保其保温性能。保温棉套管外侧使用高密度聚乙烯薄膜紧密缠绕。使用聚乙烯膜包裹的管沟，具有良好的防水性，较好的防腐蚀性，可以有效隔绝酸、碱和各种盐类的腐蚀，同时还具有一定的拉伸强度和刚性满足对管沟的形变要求。The utility model uses thermal insulation cotton sleeves to wrap pipe grooves, and uses non-degradable rope buckles to fix the position, which improves the gripping force of thermal insulation cotton sleeves and ensures its thermal insulation performance. The outer side of the insulation cotton sleeve is tightly wound with high-density polyethylene film. The pipe trench wrapped with polyethylene film has good waterproof and corrosion resistance, can effectively isolate the corrosion of acid, alkali and various salts, and also has a certain tensile strength and rigidity to meet the requirements of the pipe trench deformation requirements.
本实用新型使用玻化微珠保温砂浆来填充聚乙烯膜包裹的管沟与聚氨酯保温板之间的缝隙，有效起到保温耐水的作用，保证了冬季时期排水系统的正常使用。由于其具有优秀的抗裂抗风压性能，保证了管沟不会产生过大变形而破裂。The utility model uses vitrified microbead thermal insulation mortar to fill the gap between the polyethylene film-wrapped pipe ditch and the polyurethane thermal insulation board, effectively plays the role of thermal insulation and water resistance, and ensures the normal use of the drainage system in winter. Because of its excellent anti-crack and anti-wind pressure performance, it ensures that the pipe trench will not be broken due to excessive deformation.
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