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Construction method of heat preservation porous combined blind ditch

A construction method and composite technology, applied to waterway systems, water supply devices, drainage structures, etc., can solve problems such as relative misalignment of the internal structure of the culvert, poor structural integrity of the culvert, and difficulty in construction, and achieve a simple and economical construction method Technical benefits, effects suitable for popularization and application

Active Publication Date: 2018-02-16
ANHUI XINLU CONSTR ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water content, water content distribution and external temperature change of the subgrade soil layer are the main factors affecting the stability of the subgrade in the alpine region. On the one hand, the penetration and erosion of groundwater will reduce the strength of the subgrade and increase the compressibility. The freezing and melting of groundwater will cause uneven lifting and sinking of the roadbed, which will cause deformation and cracks in the roadbed for a long time, affecting the quality of the roadbed
[0003] It is an effective measure to deal with the underground water of the road base in the alpine area to intercept and drain the subgrade water by using the underground ditch. This method can alleviate the damage of the groundwater to the stability of the subgrade, but the traditional underground ditch has the following defects: the integrity of the underground ditch structure is poor, and The fixation is not firm, the culvert structure is easy to slide or the relative dislocation between the internal structures of the culvert occurs during backfill construction; the side permeable cushion has poor uprightness, which makes construction difficult

Method used

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  • Construction method of heat preservation porous combined blind ditch
  • Construction method of heat preservation porous combined blind ditch
  • Construction method of heat preservation porous combined blind ditch

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Embodiment Construction

[0037] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing of description, but protection scope of the present invention is not limited thereto:

[0038] Such as figure 1 and figure 2 As shown, the construction method of the present invention's thermal insulation and water seepage compound type culvert comprises the following steps:

[0039] 1) Excavation of seepage ditch foundation pit: Excavate the foundation pit according to the setting-out line and level control point, and manually repair and straighten the pit wall;

[0040] 2) Laying of cushion layer 1: Lay cushion layer 1 at the bottom of the foundation pit, and adopt graded sandstone for cushion layer 1;

[0041] 3) Construction of the concrete base 2: The concrete base 2 is laid on the upper part of the cushion layer 1, and deformation joints are set on the concrete base 2, the reserved cup opening 6 is set on the concrete base 2, and a reserved Ve...

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Abstract

The invention discloses a construction method of a heat preservation porous combined blind ditch. The construction method comprises the following steps of excavation of a seepage ditch foundation pit,pavement of a mattress layer, construction of a concrete foundation, construction of a pressure foot body, installation of porous water-leaking tubes, installation of a door-type framework, installation of a side water-permeable cushion layer, construction of a covering tube cushion layer, construction of a gravel layer, construction of a medium coarse gravel layer, construction of back fill soil, installation of a heat preservation plate and construction of a coping soil layer. The construction method is easy and feasible, the obtained heat preservation porous combined blind ditch is high inindependent existence and reliable in quality, has the advantages of high water leaking efficiency, good heat preservation effect and the like for high-cold frozen earth areas, and the construction method has good economic technological benefits and is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a construction method of a thermal insulation and water seepage composite underground ditch. Background technique [0002] In subgrade construction in alpine regions, groundwater is an important factor affecting the stability of subgrade engineering. The water content, water content distribution and external temperature change of the subgrade soil layer are the main factors affecting the stability of the subgrade in the alpine region. On the one hand, the penetration and erosion of groundwater will reduce the strength of the subgrade and increase the compressibility. The freezing and melting of groundwater will cause uneven lifting and sinking of the roadbed, which will cause deformation and cracks in the roadbed for a long time, affecting the quality of the roadbed. [0003] It is an effective measure to deal with the underground water of the road b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F5/00E01C3/06
CPCE01C3/06E03F5/00
Inventor 姜允庆侯睿妮赵新创刘甫张晓龙李超尹飞刘宏伟
Owner ANHUI XINLU CONSTR ENG GRP
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