Anti-seepage and anti-crack type underground engineering composite waterproof layer structure

Abstract

The utility model relates to building waterproof technical field, a kind of anti-seepage anti-cracking type underground engineering composite waterproof layer structure, base layer further include: the first waterproof layer of playing primary waterproof function, set in the top of the base layer, the top of the first waterproof layer is provided with the second waterproof layer of playing the waterproof effect of reinforcement;The utility model is through the fourfold block of "base layer anti-seepage+coating closed+coiled material barrier+self-repairing concrete", realizes above P12 anti-seepage grade;HPT-X nuclear material inhibits crack generation, non-solidified coating buffering deformation stress, YX-H material repairs microcrack, forms full-cycle anti-cracking system;Polymer coiled material anti-aging, drainage system reduces water pressure, ensure that waterproof layer long-term effective, the structure is through material synergy and system design, solved the problems, such as traditional waterproof layer easy cracking, easy aging, maintenance difficult, applicable to high water level, geologically complex area's underground engineering.

Description

Technical Field

[0001] This utility model relates to the field of building waterproofing technology, specifically to a composite waterproofing layer structure for underground engineering that is resistant to seepage and cracking. Background Technology

[0002] Underground engineering projects are constantly exposed to groundwater, and their waterproofing performance directly affects structural safety and service life.

[0003] Traditional underground engineering waterproofing systems often use a single waterproofing material or rely primarily on rigid waterproofing, which has the following technical defects: ordinary impermeable concrete is prone to cracking due to hydration heat, drying shrinkage, or temperature stress. Cracks wider than 0.2mm can become channels for groundwater seepage, leading to waterproofing failure; a single waterproofing material cannot simultaneously provide crack resistance, durability, and self-healing functions; and rigid and flexible waterproofing layers are prone to separation due to inconsistencies in deformation. Utility Model Content

[0004] The purpose of this invention is to provide a seepage-resistant and crack-resistant composite waterproof layer structure for underground engineering, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seepage-resistant and crack-resistant composite waterproof layer structure for underground engineering, comprising a base layer, and further comprising:

[0006] A first waterproof layer, which provides initial waterproofing, is placed on top of the base layer, and a second waterproof layer, which provides enhanced waterproofing, is placed on top of the first waterproof layer.

[0007] A third waterproof layer with repair function is placed on top of the second waterproof layer.

[0008] Preferably, the base layer is made of C40P12 impermeable concrete.

[0009] Preferably, the first waterproof layer is made of non-curing rubber asphalt coating.

[0010] Preferably, the second waterproof layer is a 1.5mm cross-laminated polymer roll material.

[0011] Preferably, the third waterproof layer is a self-healing, temperature-suppressing, and waterproof concrete.

[0012] Preferably, a drainage groove is provided on the top of the third waterproof layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention achieves a waterproofing level of P12 or higher through a four-pronged approach: base layer impermeability, coating sealing, roll material barrier, and self-healing concrete. HPT-X core material inhibits crack formation, non-curing coating buffers deformation stress, and YX-H material repairs micro-cracks, forming a full-cycle crack-resistant system. The polymer roll material resists aging, and the drainage system reduces water pressure, ensuring the long-term effectiveness of the waterproofing layer. This structure, through material synergy and system design, solves the problems of easy cracking, aging, and difficult maintenance of traditional waterproofing layers, making it suitable for underground engineering in areas with high water levels and complex geology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the third waterproof layer and drainage channel structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the base layer, the first waterproof layer, and the second waterproof layer of this utility model.

[0018] In the diagram: 1. Base layer; 2. First waterproof layer; 3. Second waterproof layer; 4. Third waterproof layer; 5. Drainage channel. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-3 As shown, a composite waterproof layer structure for underground engineering with anti-seepage and crack resistance includes a base layer 1, and further includes: a first waterproof layer 2 that provides primary waterproofing, set on top of the base layer 1; a second waterproof layer 3 that provides enhanced waterproofing, set on top of the first waterproof layer 2; and a third waterproof layer 4 with repair function, set on top of the second waterproof layer 3; the first waterproof layer 2, the second waterproof layer 3, and the third waterproof layer 4 are stacked layer by layer to enhance the waterproofing effect and improve the anti-seepage and crack resistance of the basement.

[0021] It should be noted that this utility model achieves a waterproofing level of P12 or higher through a four-fold barrier of "base waterproofing + coating sealing + roll material barrier + self-healing concrete"; HPT-X core material inhibits crack formation, non-curing coating buffers deformation stress, and YX-H material repairs micro-cracks, forming a full-cycle crack-resistant system; polymer roll material resists aging, and drainage system reduces water pressure, ensuring the long-term effectiveness of the waterproof layer.

[0022] The base layer 1 is made of C40P12 impermeable concrete; the first waterproof layer 2 is made of non-curing rubber asphalt coating; the second waterproof layer 3 is a 1.5mm cross-laminated polymer membrane; the third waterproof layer 4 is a self-healing, temperature-suppressing waterproof concrete. The base layer 1 is made of C40P12 impermeable concrete, incorporating polypropylene fibers and an expanding agent to reduce hydration heat and suppress cracking. The first waterproof layer 2 is made of non-curing rubber asphalt coating, 2.0mm thick, which seals the capillary pores of the base layer, absorbs base layer deformation stress, and prevents stress transmission to the waterproof layer; it is applied by roller. The second waterproof layer 3 is a 1.5mm cross-laminated polymer membrane, puncture-resistant and anti-aging, forming a fully bonded composite layer with the coating to adapt to structural settlement deformation. The third waterproof layer 4 is a self-healing, temperature-suppressing waterproof concrete, incorporating YX-H composite material, which fills cracks through needle-like crystals to achieve self-repairing. The cross-laminated polymer membrane is applied using a flame-sealing method with a temperature controlled between 200~250℃; the membrane is immediately rolled out after melting to remove air.

[0023] The top of the third waterproof layer 4 is equipped with a drainage channel 5, which is connected to the basement sump to drain away accumulated water and prevent water accumulation.

[0024] Working Principle: This composite waterproof layer achieves the goal of seepage and crack resistance in underground engineering through a comprehensive design that incorporates multiple layers of protection, rigid-flexible reinforcement, active repair, and drainage and pressure reduction. Base layer 1 uses C40P12 impermeable concrete, incorporating polypropylene fibers and an expansion agent. The polypropylene fibers disperse internal stress in the concrete, inhibiting plastic shrinkage cracks; the expansion agent compensates for concrete shrinkage, reducing drying shrinkage cracks; high-strength concrete (C40) reduces capillary porosity, and the P12 impermeability grade blocks groundwater seepage paths; the first waterproof layer 2 provides flexible sealing and stress buffering; and a non-curing rubber asphalt coating is applied to the base layer. The first layer of waterproofing consists of a layer that fills micro-cracks and pores in the concrete surface, forming a dense waterproof layer. The non-curing material is highly elastic and can absorb the deformation stress of the base layer (such as concrete shrinkage and temperature changes), preventing stress transfer to the upper layer of membrane and preventing the membrane from tearing. The second waterproof layer (3) provides durable protection and deformation adaptation. A 1.5mm cross-laminated polymer membrane forms a fully bonded composite layer with the first coating. The membrane is puncture-resistant and anti-aging, resisting long-term groundwater erosion and mechanical damage. The cross-laminated structure enhances the membrane's tear resistance and, after full bonding with the coating, adapts to structural settlement, preventing the waterproof layer from becoming detached. The third waterproof layer (4) provides active repair and structural self-waterproofing: a self-healing, temperature-suppressing, and waterproof concrete incorporating YX-H composite materials. The active chemical substances in YX-H react with water to form needle-like crystals, automatically filling cracks and restoring the concrete's impermeability. A drainage channel (5) is installed at the top of the third waterproof layer (4), connected to a collection well. Even if a small amount of groundwater breaches the waterproof layer, the drainage channel (5) can quickly collect and drain the water, reducing the long-term effect of water pressure on the waterproof layer and preventing further leakage.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A composite waterproof layer structure for underground works against permeation and cracking, comprising a base layer (1), characterized in that, Also includes: The first waterproof layer (2), which plays a primary waterproofing role, is set on the top of the base layer (1), and a second waterproof layer (3), which plays a reinforcing waterproofing role, is set on the top of the first waterproof layer (2). A third waterproof layer (4) with repair function is placed on top of the second waterproof layer (3).

2. The anti-seepage and anti-cracking type composite waterproof layer structure for underground works according to claim 1, characterized in that: The base layer (1) is made of C40P12 impermeable concrete.

3. The seepage-resistant and crack-resistant composite waterproof layer structure for underground engineering according to claim 1, characterized in that: The first waterproof layer (2) is made of non-curing rubber asphalt coating.

4. The anti-seepage and anti-crack type composite waterproof layer structure for underground engineering according to claim 1, characterized in that: The second waterproof layer (3) is a 1.5mm cross-laminated polymer roll.

5. The anti-seepage and anti-crack type composite waterproof layer structure for underground engineering according to claim 1, characterized in that: The third waterproof layer (4) is a self-healing, temperature-suppressing, and waterproof concrete.

6. The anti-seepage and anti-crack type composite waterproof layer structure for underground engineering according to claim 1, characterized in that: The top of the third waterproof layer (4) is provided with a drainage groove (5).

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