阅读说明：本技术 不伸缩不龟裂沉箱防水结构及其施工方法 (Non-telescopic and non-cracking caisson waterproof structure and construction method thereof ) 是由 彭成义 于 2019-09-05 设计创作，主要内容包括：本发明涉及建筑施工技术领域,具体地,涉及不伸缩不龟裂沉箱防水结构及其施工方法。该不伸缩不龟裂沉箱防水结构,包括凹槽形沉箱墙,铺设在该沉箱墙上的凹槽形混凝土层,其特征在于,还包括依次设置在该混凝土层上的第一防水层,细纤维网层和第二防水层。该方法在楼地面形成伸缩缝,防止地面龟裂,保证地面平整。(The invention relates to the technical field of building construction, in particular to a non-telescopic and non-cracking caisson waterproof structure and a construction method thereof. The non-telescopic and non-cracking caisson waterproof structure comprises a groove-shaped caisson wall and a groove-shaped concrete layer laid on the caisson wall, and is characterized by further comprising a first waterproof layer, a fine fiber net layer and a second waterproof layer which are sequentially arranged on the concrete layer. The method forms an expansion joint on the floor of the building, prevents the floor from cracking and ensures the floor to be flat.)

1. The utility model provides a not flexible not chap caisson waterproof construction, includes recess shape caisson wall, lays the recess shape concrete layer on this caisson wall, its characterized in that still includes the first waterproof layer, thin fiber net layer and the second waterproof layer that set gradually on this recess shape concrete layer.

2. The non-telescoping non-cracking caisson waterproof structure of claim 1, wherein a ceramsite backfill layer, a coarse fiber mesh layer and a mortar leveling layer are sequentially laid on the second waterproof layer.

3. The non-telescoping, non-cracking caisson waterproofing structure according to claim 1 wherein the groove-shaped concrete layer forms an R-angle structure at the junction of the side and bottom surfaces, the R-angle being an obtuse angle.

4. The non-telescoping, non-cracking caisson waterproofing structure of claim 2 wherein a floor tile finish is also laid on the mortar screed.

5. The construction method of the non-telescoping non-cracking caisson waterproof structure according to any one of claims 1 to 4, comprising the steps of:

(1) base layer treatment: removing and cleaning the floating soil or mortar on the groove-shaped caisson wall;

(2) laying a groove-shaped concrete layer in the groove-shaped caisson wall, wherein the groove-shaped concrete layer covers the bottom surface and the side surfaces of the groove-shaped caisson wall, and an R angle is formed at the joint of the side surfaces and the bottom surface and is an obtuse angle;

(3) coating a first waterproof layer on the groove-shaped concrete layer;

(4) laying a fine fiber net layer on the first waterproof layer;

(5) coating a second waterproof layer on the fine fiber net layer;

(6) paving a ceramsite backfill layer on the second waterproof layer;

(7) paving a coarse fiber net layer on the ceramsite backfill layer;

(8) and paving a mortar leveling layer on the coarse fiber net layer.

6. The method for constructing a non-telescoping, non-cracking caisson waterproofing structure according to claim 5, further comprising the step (9) of laying a floor tile finish on the mortar screed.

7. The construction method of the non-telescoping non-cracking caisson waterproof structure as claimed in claim 5, wherein the step (2) further comprises the step of laying drain pipes on the groove-shaped concrete layer.

Technical Field

The invention relates to the technical field of building construction, in particular to a non-telescopic and non-cracking caisson waterproof structure and a construction method thereof.

Background

The existing buildings are basically sunk toilets, which are also called caisson type toilets, and refer to that when a main body is built, a structural layer of the toilet is partially or wholly sunk to a certain height away from a corresponding floor, so that a sewage discharge pipe in the toilet is buried in the structural layer.

The sunken toilet is convenient for the drainage arrangement of the toilet, the decoration is carried out on the floor without involving downstairs, the toilet noise can be reduced, the top surface is flat, and no drainage pipeline is arranged. However, the sink toilet also has the following disadvantage 1 that the waterproofing is troublesome. 2. The potential danger of water leakage exists, the maintenance is troublesome, if the waste material is backfilled and leveled, the mortar layer and the waterproof layer on the mortar layer and the waterproof layer can sink gradually after a long time, the gap with the size of 1MM is enough for water leakage, and the water can leak to the backfilled area. Because the waterproof layer is arranged below the water-proof layer, water cannot leak out, and the water is accumulated on the backfill layer, so that the time is long, and the whole backfill layer is filled with water.

The reason for the water leakage of the waterproof engineering of the toilet caisson is as follows:

1. when the main structure is constructed, the concrete between the embedded sleeve and the concrete is not compact or has pitted surfaces or honeycomb pores in a local range, so that water leakage is caused.

2. The concrete shrinkage causes a gap between the concrete and the pipeline, and the pipeline stretches longitudinally due to the temperature difference, so that water leakage is generated at the joint of the pipeline and the concrete.

3. At the joint of the ground and the wall surface, the waterproof layer is not made on the wall surface, so that water leakage occurs.

Therefore, the development of waterproof structure of caisson is urgently needed to solve the defects of the prior art

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a non-telescopic and non-cracking caisson waterproof structure and a construction method thereof, and solves the technical problem of water leakage in the current toilet caisson waterproof engineering.

The technical scheme of the invention is as follows: the non-telescopic and non-cracking caisson waterproof structure comprises a groove-shaped caisson wall, a groove-shaped concrete layer laid on the groove-shaped caisson wall, and a first waterproof layer, a fine fiber net layer and a second waterproof layer which are sequentially arranged on the groove-shaped concrete layer.

Optionally, a ceramsite backfill layer, a coarse fiber mesh layer and a mortar leveling layer are sequentially laid on the second waterproof layer.

The groove-shaped concrete layer forms an R-angle structure at the joint of the side surface and the bottom surface, and the R angle is an obtuse angle.

The groove-shaped mortar leveling layer is also paved with a floor tile decoration layer.

The construction method of the non-telescopic and non-cracking caisson waterproof structure comprises the following steps:

(1) base layer treatment: removing and cleaning the floating soil or mortar on the groove-shaped caisson wall;

(2) laying a groove-shaped concrete layer in the groove-shaped caisson wall, wherein the groove-shaped concrete layer covers the bottom surface and the side surfaces of the groove-shaped caisson wall, and an R angle is formed at the joint of the side surfaces and the bottom surface and is an obtuse angle;

(3) coating a first waterproof layer on the groove-shaped concrete layer;

(4) laying a fine fiber net layer on the first waterproof layer;

(5) coating a second waterproof layer on the fine fiber net layer;

(6) paving a ceramsite backfill layer on the second waterproof layer;

(7) paving a coarse fiber net layer on the ceramsite backfill layer;

(8) and paving a mortar leveling layer on the coarse fiber net layer.

Preferably, the construction method of the non-telescopic and non-cracking caisson waterproof structure further comprises the step (9) of laying a floor tile decoration layer on the mortar leveling layer.

Preferably, the construction method of the non-telescopic and non-cracking caisson waterproof structure further comprises the step of laying a drain pipe on the concrete layer.

The invention has the beneficial effects that: the non-telescopic and non-cracking caisson waterproof structure comprises a first waterproof layer, a fine fiber net layer and a second waterproof layer which are adhered into a whole, so that the micro-vibration and the expansion of the caisson waterproof structure are prevented. In addition, set up double-deck waterproof construction on the concrete layer, even the not closely knit or pitted surface or honeycomb hole of local range in concrete, water can not pass through double-deck waterproof construction seepage yet. Even if the pipeline is longitudinally stretched due to temperature difference, the fine fiber net reserves a space stretching space for the pipeline, and water leakage at the joint of the pipeline and concrete can be prevented. In addition, in this application, concrete layer covers the bottom surface and the side of recess shape caisson wall to at side and bottom surface handing-over department formation R angle, double waterproof layer all covers concrete layer R angle structure department, thereby avoided because the waterproof layer does not do to the wall, the phenomenon of percolating water appears.

The construction method of the non-telescopic and non-cracking caisson waterproof structure is simple and excellent in waterproof performance after construction.

Drawings

Fig. 1 is a schematic structural view of a non-telescopic and non-cracking caisson waterproof structure according to the invention.

Detailed Description

In order to make the object, technical solution and technical effect of the present invention more apparent, the present invention will be further described with reference to the following embodiments. It should be understood that the embodiments and the accompanying drawings described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a non-telescopic and non-cracking caisson waterproof structure includes a groove-shaped caisson wall 1 and a groove-shaped concrete layer 2 laid on the groove-shaped caisson wall 1. Usually a drainage pipe is laid in the concrete layer 2.

The concrete layer 2 is sequentially provided with a first waterproof layer 3, a fine fiber net layer 4 and a second waterproof layer 5. The first waterproof layer 3, the fine fiber mesh layer 4 and the second waterproof layer 5 are bonded into a cured structure. The cured structure has a dual water-repellent effect on the one hand and a vibration-and crack-resistant effect on the other hand. Especially, when the drain pipe is expanded by heat and contracted by cold due to temperature change, the fine fiber net layer 4 provides a telescopic space for the drain pipe, so that the waterproof structure of the caisson can be prevented from cracking. In addition, the expansion of the whole caisson waterproof structure is also ensured.

In another embodiment of the present invention, a ceramsite backfill layer 6, a coarse fiber mesh layer 7 and a mortar leveling layer 8 are further disposed on the second waterproof layer 5.

In another embodiment of the present invention, the groove-shaped concrete layer 2 forms an R-angle at the intersection of the side surface and the bottom surface, and the R-angle is an obtuse angle. This smooth slope of the angle R is excessive, on the one hand preventing the penetration of moisture and, on the other hand, providing support for the arrangement of the first waterproofing layer 3.

The construction method of the non-telescopic and non-cracking caisson waterproof structure comprises the following steps:

(1) base layer treatment: the floating soil or mortar on the groove-shaped caisson wall 1 is shoveled and cleaned, so that the subsequent construction is facilitated;

(2) and a concrete layer 2 is laid in the groove-shaped caisson wall, the concrete layer 2 covers the bottom surface and the side surfaces of the groove-shaped caisson wall, and an R-angle structure is formed at the joint of the side surfaces and the bottom surface, wherein the R angle is an obtuse angle. This smooth slope of the angle R is excessive, on the one hand preventing the penetration of moisture and, on the other hand, providing support for the arrangement of the first waterproofing layer 3. Usually, the drainage pipes of the caisson are laid in this concrete layer 2.

(3) Coating a first waterproof layer on the concrete layer 2; the first waterproof layer is coated on the top surface of the concrete layer 2, so that water is prevented from leaking to the concrete layer.

(4) Laying a fine fiber net layer on the first waterproof layer;

(5) coating a second waterproof layer on the fine fiber net layer; the second waterproof layer, the fine fiber net layer and the first waterproof layer are adhered to form a whole, so that micro-vibration and expansion of the caisson waterproof structure are prevented;

(6) paving a ceramsite backfill layer on the second waterproof layer;

(7) paving a coarse mesh layer on the ceramsite backfill layer;

(8) and paving a mortar leveling layer on the coarse mesh layer.

According to the construction method of the non-telescopic and non-cracking caisson structure, the first waterproof layer structure and the second waterproof layer structure are arranged and are bonded with the fine fiber net layer into a whole, so that micro-vibration and cracking of the caisson structure are prevented. In addition, the first waterproof layer and the second waterproof layer also have a waterproof effect, and water is prevented from leaking to the concrete layer.

Optionally, the construction method of the non-telescopic and non-cracking caisson waterproof structure further comprises the step (9) of laying a floor tile decoration layer on the mortar leveling layer.

Optionally, the construction method of the non-telescopic and non-cracking caisson waterproof structure further comprises the step of laying a drain pipe on the concrete layer.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.