Roof drain pipe structure for integrated water seepage prevention treatment

Abstract

The invention discloses a roof drain pipe structure subjected to integrated water seepage prevention treatment. The problem that a joint opening formed between a roof waterproof layer and an inner opening of a drain pipe has the maximum hidden danger of water seepage is solved. Pre-embedded drainage pipes (5) are connected to the parapet wall internal pre-embedded steel bars (4), and parapet wall concrete (6) is poured between the inner side formwork (2) and the outer side formwork (3); after the parapet wall concrete (6) is solidified and the inner side formwork (2) and the outer side formwork (3) are removed, a roof structure leveling layer (8), a roof heat preservation layer (9), a roof slope making layer (10), a waterproof leveling layer (11) and a waterproof protection layer (12) are sequentially arranged on a roof structure layer of the roof body structure (1) on the inner side of the parapet wall in the direction from bottom to top. And the waterproof protection layer (12) continuously enters the inner cavity of the pre-buried drainage pipe (5), is turned outwards on the water outlet of the pre-buried drainage pipe (5), and is clamped and fixed by the hoop (13).

Description

Technical Field

[0001] The invention relates to a roof surface of a large industrial plant, and in particular to a large-area roof surface drainage pipe structure with integrated anti-seepage treatment. Background Art

[0002] The roof of a large industrial plant is generally designed as a flat roof. A parapet is set around the outer wall of the roof. A drainage pipe is set at the root of the parapet. The existing technical method of constructing the drainage pipe is as follows: when the parapet concrete pouring formwork is supported, a box formwork that can form a drainage hole is pre-buried and fixed between the vertical steel bars in the parapet wall. When the parapet concrete pouring formwork is supported, it is hidden and clamped therein. After the formwork is supported and reinforced, the concrete of the parapet is poured. After the concrete solidifies, the parapet is removed. The template and the box template form a reserved hole for roof drainage at the root of the parapet. Then, a large-area roof surface leveling layer, insulation layer, and slope layer are applied, and a water outlet pipe is installed in the reserved drainage hole on the roof surface, and then the water outlet pipe is sealed with fine stone concrete; finally, a waterproof layer is applied on the roof surface. The existing technology for applying the waterproof layer is generally to form a roof surface waterproof layer by laying a waterproof membrane on the leveling layer. The waterproof membrane on the roof surface is generally laid to the inner side of the parapet wall drainage pipe. There is a joint gap between the inner port of the drain pipe, which is a key hidden danger of roof water seepage. In order to overcome the water seepage defect of the joint gap, technical personnel in this field have tried to overcome this defect through various technical measures, but the following defects still exist: (1) After the drain pipe is inserted into the hole of the existing parapet reserved for the drain pipe, the fine stone concrete sealing part of the gap around the pipe is prone to become a high-incidence point of roof water seepage. The existing construction process of the reserved hole cannot fundamentally solve the problem of water seepage at the drain outlet; (2) The lag in the reserved hole The construction process for installing the drainage pipe, as well as the independent construction processes of the drainage pipe, the parapet structure layer of the roof surface and the waterproof layer on the roof surface, make the drainage pipe and the structural waterproof layer form two skins, which directly causes the hidden danger of water seepage at the connection point; (3) The traditional process is to apply the leveling layer, insulation layer, slope layer, and leveling layer on the roof surface in sequence, then install the drainage pipe, and then apply the waterproof layer and the waterproof protective layer. This process is centered on the structural layer and does not raise water seepage prevention to the most important position of the construction of each structural layer on the roof surface. Summary of the invention

[0003] The invention provides a roof surface drainage pipe structure with integrated anti-seepage treatment, which solves the technical problem that the joint formed between the roof surface waterproof layer and the inner opening of the drainage pipe is the biggest hidden danger of water seepage.

[0004] The present invention solves the above technical problems through the following technical solutions: The overall concept of the present invention is: to change the traditional process of taking the roof structure layer as the basis for the construction of the roof surface, and to use waterproofing to guide the construction of each structural layer of the roof surface; to directly embed and install the drainage pipe in the parapet wall formwork system before pouring the parapet wall concrete, so that the drainage pipe forms a complete whole with the concrete parapet wall after the concrete is poured, avoiding the secondary blocking of the annular gap formed around the drainage pipe and the hole caused by the traditional practice of leaving a hole first and then installing the drainage pipe, and avoiding the gap formed by the shrinkage of the later-filled concrete from becoming a hidden danger of water leakage at the root of the parapet wall; to expand and pave the roof surface waterproof layer to the outer pipe mouth of the drainage pipe, so that the rainwater on the roof surface can be directly discharged into the rainwater system outside the parapet wall through the integrated waterproof layer of the roof surface, which completely solves the hidden danger of water leakage at the root of the roof parapet wall outlet pipe.

[0005] The roof surface drainage pipe structure with integrated anti-seepage treatment includes a main roof structure, an inner template for casting parapet concrete and an outer template for casting parapet concrete are arranged on the main roof structure, pre-buried steel bars in the parapet wall are arranged between the inner template and the outer template, a pre-buried drainage pipe is connected to the pre-buried steel bars in the parapet wall, the inner port of the pre-buried drainage pipe is top-connected to the inner facade of the inner template, and the outer port of the pre-buried drainage pipe passes through the outer template and is cantilevered on the outer side of the main roof structure; on the inner template Parapet concrete is poured between the outer formwork; when the parapet concrete solidifies and the inner and outer formworks are removed, a waterproof waistline is formed on the inner facade of the parapet, and on the roof structure layer of the main roof structure on the inner side of the parapet, a roof structure leveling layer, a roof insulation layer, a roof slope layer, a waterproof leveling layer and a waterproof protective layer are arranged in sequence from bottom to top. The waterproof protective layer continues into the inner cavity of the embedded drainage pipe, and is turned outward on the water outlet of the embedded drainage pipe and is clamped and fixed by a clamp.

[0006] The waterproof protective layer extending into the inner cavity of the embedded drainage pipe is integrated along the inner cavity side wall of the embedded drainage pipe, and is integrated with the waterproof layer on the inner wall of the parapet wall below the waterproof waistline.

[0007] A water stop wing ring is arranged on the outer side wall of the embedded drainage pipe embedded in the concrete of the parapet wall; and a waterproof layer protective layer is arranged on the waterproof protective layer on the inner side of the water inlet of the embedded drainage pipe.

[0008] The present invention directly embeds a drainage pipe in the concrete pouring of the roof parapet, and integrates the roof waterproof layer into the drainage pipe, so that the waterproof layer on the inner side facade of the parapet, the waterproof layer on the roof surface and the waterproof layer in the drainage pipe are seamlessly connected to form a waterproof layer as a whole, which completely solves the hidden danger of roof leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a connection relationship diagram between the embedded drainage pipe 5 of the present invention and the parapet wall concrete casting template. DETAILED DESCRIPTION

[0010] The present invention is described in detail below in conjunction with the accompanying drawings: The roof surface drainage pipe structure with integrated anti-seepage treatment comprises a main roof structure 1, an inner formwork 2 for casting parapet concrete and an outer formwork 3 for casting parapet concrete are arranged on the main roof structure 1, a parapet wall embedded steel bar 4 is arranged between the inner formwork 2 and the outer formwork 3, a embedded drainage pipe 5 for roof surface drainage is connected to the embedded steel bar 4 in the parapet wall, the inner port of the embedded drainage pipe 5 is top-connected to the inner facade of the inner formwork 2, and the outer port of the embedded drainage pipe 5 passes through the outer formwork 3 and is cantilevered to the outer side of the main roof structure 1; a parapet wall concrete 6 is cast between the inner formwork 2 and the outer formwork 3, so that the embedded drainage pipe 5 and the parapet wall cast concrete are combined into a whole, thereby changing the conventional A hole for installing the drainage pipe is reserved, and the drainage pipe is installed later, and the gap between the hole and the drainage pipe needs to be filled, thus leaving a hidden danger of water leakage; when the parapet concrete 6 solidifies, the inner formwork 2 and the outer formwork 3 are removed, and the embedded drainage pipe 5 is embedded in the root of the parapet in advance, and a waterproof waistline 7 is formed on the inner facade of the parapet. On the roof structure layer of the roof main structure 1 on the inner side of the parapet, a roof structure leveling layer 8, a roof insulation layer 9, a roof slope layer 10, a waterproof leveling layer 11 and a waterproof protective layer 12 are arranged in sequence from bottom to top. The waterproof protective layer 12 is continued to be paved into the inner cavity of the embedded drainage pipe 5, and is turned outward on the water outlet of the embedded drainage pipe 5 and fixed by a clamp 13.

[0011] The waterproof protective layer that continues into the inner cavity of the embedded drainage pipe 5 is integrally arranged along the side wall of the inner cavity of the embedded drainage pipe 5, and is integrally connected with the waterproof layer 14 on the inner wall of the parapet wall below the waterproof waistline 7; the waterproof protective layer 12 in the inner cavity of the embedded drainage pipe 5 and the waterproof protective layer 12 on the roof surface, as well as the waterproof layer 14 on the inner wall of the parapet wall below the waistline 7 form a seamless waterproof whole, so that rainwater on the roof enters the inner cavity of the embedded drainage pipe 5 along the roof slope, and is directly discharged into the drainage riser arranged on the outside of the roof main structure 1, eliminating the existence of construction gaps in the traditional waterproof layer and realizing the overall coverage of the waterproof layer on the roof surface.

[0012] A water-stop wing ring 15 is arranged on the outer wall of the embedded drainage pipe 5 embedded in the parapet concrete to prevent water from seeping into the outer wall of the parapet and entering the roof surface; a waterproof layer protective layer 16 is arranged on the waterproof protective layer 12 on the inner side of the water inlet of the embedded drainage pipe 5, and the waterproof layer protective layer 16 is a mortar layer, which plays a role in protecting the waterproof protective layer.

Claims

1. A roof surface drainage pipe structure with integrated anti-seepage treatment, comprising a roof main structure (1), an inner formwork (2) for casting parapet concrete and an outer formwork (3) for casting parapet concrete are arranged on the roof main structure (1), and a parapet wall embedded steel bar (4) is arranged between the inner formwork (2) and the outer formwork (3), characterized in that: A pre-buried drainage pipe (5) is connected to the pre-buried steel bars (4) in the parapet wall, the inner end of the pre-buried drainage pipe (5) is top-connected to the inner facade of the inner formwork (2), and the outer end of the pre-buried drainage pipe (5) passes through the outer formwork (3) and is cantilevered on the outer side of the roof main structure (1); a parapet wall concrete (6) is poured between the inner formwork (2) and the outer formwork (3); after the parapet wall concrete (6) solidifies and the inner formwork (2) and the outer formwork (3) are removed, a pre-buried drainage pipe (5) is placed in the parapet wall. A waterproof waistline (7) is formed on the side elevation. On the roof structure layer of the roof main structure (1) on the inner side of the parapet, a roof structure leveling layer (8), a roof insulation layer (9), a roof slope layer (10), a waterproof leveling layer (11) and a waterproof protective layer (12) are sequentially arranged from bottom to top. The waterproof protective layer (12) continues into the inner cavity of the embedded drainage pipe (5), is turned outward on the water outlet of the embedded drainage pipe (5), and is clamped and fixed by a clamp (13).

2. The roof surface drainage pipe structure with integrated anti-seepage treatment according to claim 1, characterized in that: The waterproof protective layer (12) extending into the inner cavity of the embedded drainage pipe (5) is integrally arranged along the inner cavity side wall of the embedded drainage pipe (5), and is integrally connected to the waterproof layer (14) on the inner wall of the parapet wall arranged below the waterproof waistline (7).

3. The roof surface drainage pipe structure with integrated anti-seepage treatment according to claim 2, characterized in that: A water stop wing ring (15) is provided on the outer side wall of a pre-buried drainage pipe (5) pre-buried in the concrete of the parapet wall; and a waterproof layer protective layer (16) is provided on the waterproof protective layer (12) on the inner side of the water inlet of the pre-buried drainage pipe (5).

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