拆卸式泄水管

Abstract

本实用新型公开了一种拆卸式泄水管，属于基坑和边坡工程技术领域，本拆卸式泄水管包括无砂混凝土管、外管、内管和土工布，无砂混凝土管设有腔体，无砂混凝土管的端部设置有插入端；外管穿设在腔体中并与无砂混凝土管固定连接，外管管身均匀开设有多个第一通孔；内管可拆卸地穿设在外管中并位于腔体中，内管管身均匀开设有多个第二通孔，土工布包裹设置在内管的外侧，土工布位于内管和外管之间。本实用新型构建了高效稳定的排水系统，能够有效疏导地下水，降低支护结构所受水压力，内管与土工布的可拆卸设计使其在无需扰动外部结构的情况下实现更换，既规避了土体塌陷风险，又简化了维修流程，实现了延长结构使用寿命与降低维护成本的双重效益。

Claims

1. A detachable downspout, comprising: include: A sand-free concrete pipe (100) is provided with a cavity (110) along its axial direction. An insertion end (120) is provided at the end of the sand-free concrete pipe (100). The opening of the cavity (110) is opened in a direction away from the insertion end (120). An outer tube (200) is fixedly inserted into the cavity (110). The outer tube (200) is coaxially arranged with the sand-free concrete pipe (100). The outer tube (200) has a plurality of first through holes (210) evenly opened on its body. The inner tube (300) is detachably inserted into the outer tube (200). The inner tube (300) is coaxially arranged with the sand-free concrete pipe (100). The inner tube (300) has a plurality of second through holes (310) evenly opened in its body. Geotextile (400) is wrapped around the outside of the inner tube (300) and is located between the inner tube (300) and the outer tube (200).

2. The removable downspout of claim 1, wherein, One end of the inner tube (300) abuts against the insertion end (120), and the other end extends out of the opening of the outer tube (200) and extends away from the insertion end (120).

3. The removable downspout of claim 1, wherein, The sand-free concrete pipe (100) adopts a sand-free concrete formula meeting wherein, D cn35 is a pore size value corresponding to a cumulative percentage of 35% on a sand-free concrete limited pore size distribution curve, d 85 is a particle size value corresponding to a cumulative percentage of 85% on a stratum soil particle grading curve.

4. The removable downspout of claim 1, wherein, The geotextile (400) covers the body of the inner tube (300) and the open end of the inner tube (300) near the insertion end (120).

5. The removable downspout of claim 1, wherein, The first through hole (210) is a long rectangular shape extending along the axial direction of the outer tube (200), and the second through hole (310) is circular.

6. The removable downspout of claim 1, wherein, The opening ratio of the outer tube (200) is greater than that of the inner tube (300).

7. The removable downspout of claim 1, wherein, The insertion end (120) has a flat bottom structure.

8. The removable downspout of claim 7, wherein, The thickness of the insertion end (120) is the same as the wall thickness of the sand-free concrete pipe (100).

9. The removable downspout of claim 1, wherein, The insertion end (120) has a tapered structure.

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