Basement side wall anti-drainage combined structure during reverse construction method construction

Abstract

The utility model relates to the technical field of building construction, and discloses a basement side wall anti-drainage combined structure during reverse building method construction, which comprises clay, a P8 anti-seepage grade continuous wall serving as a side wall is arranged on the inner wall of the clay, one side of the P8 anti-seepage grade continuous wall serving as the side wall is provided with spraying concrete for leveling, and the other side of the P8 anti-seepage grade continuous wall serving as the side wall is provided with spraying concrete for leveling. A waterproof agent is arranged on the side, serving as the side wall, of the P8 impervious grade continuous wall, a waterproof coating is arranged on the inner wall of the P8 impervious grade continuous wall, a cement mortar protection layer is arranged on the inner wall of the P8 impervious grade continuous wall, a waterproof cement fiber wall plate is arranged on the side, serving as the side wall, of the P8 impervious grade continuous wall, and the waterproof cement fiber wall plate is arranged on the side, serving as the side wall, of the P8 impervious grade continuous wall. According to the utility model, through a mode of combination of prevention and drainage, the leakage rate of the side wall is reduced through a reverse construction method, the maintenance cost is reduced, the structure durability and the wall surface flatness are both realized, the waterproof effect is improved, and the construction cost is reduced. And the service life of the building is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, especially relates to a basement side wall prevents and removes combination structure during reverse construction method construction. BACKGROUND

[0002] Basement construction is an important link in building engineering, usually including excavation of underground space, foundation treatment, waterproof construction and structure construction etc. First, the basement earthwork excavation needs to be carried out, and underground water level, soil quality etc. are analyzed in detail to ensure construction safety. Secondly, the waterproofing and moisture-proofing design of the basement is particularly critical, usually using waterproof membrane, concrete waterproof layer etc. technology for treatment. The design of basement structure needs to consider load bearing, seismic resistance and space utilization etc. factors. During construction, quality control is crucial to ensure the stability and safety of the basement.

[0003] The structure of basement construction includes foundation, wall, floor and roof etc., usually constructed with concrete, reinforced concrete etc. materials. The construction process is generally divided into several stages: first, earthwork excavation and foundation treatment are carried out to ensure underground water level control; then basement structure pouring and steel bar binding are carried out to ensure bearing capacity and seismic performance; then waterproofing and moisture-proofing layer construction is carried out to prevent water penetration; finally, electrical, pipeline installation and wall, roof decoration treatment are carried out. Throughout the process, strict quality control and safety measures ensure the stability and durability of the basement structure.

[0004] When the existing basement is constructed by reverse construction method, there is no construction space on the outer side of the side wall, and it is impossible to carry out water-facing prevention, the simple backwater prevention effect is poor, and the problem of basement water leakage becomes a common problem, which has the characteristics of great difficulty in treatment and long cycle, and if the water leakage is not timely removed, it will cause great hidden danger to the later operation of the project, therefore, a basement side wall prevention and removal combination structure during reverse construction method construction is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a basement side wall prevention and removal combination structure during reverse construction method construction, aiming at improving the problem that there is no construction space on the outer side of the side wall when the reverse construction method is used in the prior art, and it is impossible to carry out water-facing prevention.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A basement side wall anti-leakage combined structure during reverse construction method construction, comprising a P8 impermeable grade continuous wall serving as a side wall, one side of the P8 impermeable grade continuous wall serving as a side wall being sprayed with waterproof paint and waterproof agent, and a cement mortar protective layer, a waterproof cement fiber wallboard being installed on the inner side of the P8 impermeable grade continuous wall serving as a side wall, a cavity being arranged between the P8 impermeable grade continuous wall serving as a side wall and the waterproof cement fiber wallboard, the cavity being provided with an exhaust hole, a water passing hole reserved sleeve, a downspout and a drainage ditch in the inside;

[0008] As a further description of the above technical solution:

[0009] One side of the P8 impermeable grade continuous wall serving as a side wall is provided with a structural floor, and one side of the P8 impermeable grade continuous wall serving as a side wall is provided with sprayed concrete leveling;

[0010] As a further description of the above technical solution:

[0011] One side of the structural floor is provided with a construction joint, and one side of the P8 impermeable grade continuous wall serving as a side wall is provided with another construction joint;

[0012] As a further description of the above technical solution:

[0013] The inner side of the waterproof cement fiber wallboard is a polymer cement waterproof mortar and a protective layer thereof;

[0014] As a further description of the above technical solution: the P8 impermeable grade continuous wall serving as a side wall and the structural floor are connected through embedded steel bars, and a plurality of water-swelling water stop strips are arranged at the junction.

[0015] The utility model has the advantages of:

[0016] In the utility model, the leakage risk is significantly reduced through three protections - water-based waterproof agent penetrating 20-30mm depth and waterproof paint sealing concrete capillary holes; the drainage cavity actively leads out the seepage water by 150mm, so as to avoid erosion of the structure; the 100mm fiber plate and the waterproof mortar form a physical moisture-proof layer, the construction joint water stop strip dynamically adapts to ±3mm deformation, the exhaust hole maintains the dryness of the cavity, the overall leakage rate of the side wall during reverse construction method construction is reduced, the maintenance cost is reduced, the structural durability and the wall flatness are combined, the waterproof effect is improved, and the service life of the building is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A plane schematic view of a basement side wall anti-leakage combined structure during reverse construction method construction is provided.

[0018] LEGEND:

[0019] 1, clay; 2, P8 anti-permeable grade continuous wall as side wall; 3, sprayed concrete leveling; 4, waterproofing agent; 5, waterproofing coating; 6, cement mortar protective layer; 7, structural floor; 8, embedded steel bar; 9, water-swelling waterstop; 10, construction joint; 11, water passage reserved sleeve; 12, air vent; 13, waterproof cement fiber wallboard; 14, downspout and drainage ditch; 15, polymer cement waterproof mortar and its protective layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Reference Figure 1 An embodiment provided by the utility model: a basement side wall anti-drainage combined structure during top-down construction, comprising P8 anti-permeable grade continuous wall as side wall 2, the design of the wall body can effectively resist water permeation, ensure the safety and dryness of the basement, has higher compression resistance and deformation resistance, the P8 anti-permeable grade continuous wall as side wall 2 is sprayed with waterproofing coating 5 on one side, the main role of waterproofing coating 5 is to form an effective waterproof barrier, enhance the impermeability of the wall body, prevent external moisture from penetrating to the inside, and waterproofing agent 4, water-based permeable inorganic waterproofing agent 4 can penetrate 20-30mm into the concrete matrix, form stable waterproof protection, and reduce water movement in capillary pores.

[0022] Cement mortar protective layer 6, the cement mortar protective layer 6 not only provides protection to the structure and resists mechanical damage, but also provides an additional layer of protection to the waterproof structure, prolonging its service life, the P8 anti-permeable grade continuous wall as side wall 2 is installed with waterproof cement fiber wallboard 13 on the inner side, the wallboard has excellent bending strength, effectively blocks the internal residual water vapor from escaping outward, and optimizes the overall waterproof effect, a cavity is arranged between the P8 anti-permeable grade continuous wall as side wall 2 and the waterproof cement fiber wallboard 13, the cavity helps to form a dry buffer layer, enhancing the moisture management capability and preventing moisture accumulation.

[0023] The interior of the cavity is provided with an exhaust hole 12, the existence of which can periodically discharge the moisture in the cavity, maintain good air pressure balance, thereby effectively preventing the retention of water vapor, a water overflow hole reserved sleeve 11 is arranged in the cavity, which can guide water into the water overflow hole when the water penetration reaches a critical value, and quickly transfer through the sleeve to avoid the rise of water level, a downspout and a drainage ditch 14, these drainage facilities are designed with a 1% slope, which can ensure that rainwater or seepage water is smoothly discharged by gravity, effectively eliminating hydrostatic pressure and protecting underground structures, a P8 impermeable grade continuous wall serves as one side of the side wall 2, a structural floor 7 is installed on one side of the P8 impermeable grade continuous wall, which effectively combines the wall and the floor to improve the stability of the overall structure and enhance the compression resistance.

[0024] A sprayed concrete leveling layer 3 is arranged on one side of the P8 impermeable grade continuous wall serving as the side wall 2, the formation of the leveling layer not only provides an aesthetically pleasing surface, but also improves the accuracy and efficiency of subsequent construction, a construction joint 10 is arranged on one side of the structural floor 7, the design of the construction joint 10 takes into account the construction sequence and deformation requirements of the structure, ensuring the stability and safety of the overall structure, another construction joint 10 is arranged on one side of the P8 impermeable grade continuous wall serving as the side wall 2, this additional construction joint 10 can provide convenience for subsequent construction and also provide a necessary access for the maintenance of the structure, the inside of the waterproof cement fiber wallboard 13 is a polymer cement waterproof mortar and its protective layer 15, this layer of material can further enhance the waterproofing ability and effectively resist moisture penetration and external water pressure.

[0025] The P8 impermeable grade continuous wall serving as the side wall 2 and the structural floor 7 are connected by embedded steel bars 8, the connection of the steel bars improves the overall stress performance and ensures the structural reliability, there are multiple water-swelling sealing strips 9 at the junction, which can swell by 300% when encountering water and form a seal to dynamically respond to structural deformation and water level changes and protect the structure from water seepage, the P8 impermeable grade continuous wall serving as the side wall 2 is externally provided with clay 1.

[0026] Working principle: first water-based penetration type inorganic waterproof agent 4 along P8 impermeable grade continuous wall as a side wall 2 outside surface penetration 20-30 mm, and the second layer of waterproof coating 5 and concrete reaction to generate calcium silicate crystals, close 0.3 mm below capillary channel, when the water breakthrough waterproof, will be water through the reserved sleeve water hole reserved sleeve 11 lead into 150 mm cavity, through 1% slope of downspout and drainage ditch 14 fast to the water collecting well, eliminate hydrostatic pressure, the inside of the cavity is provided with 100 mm thick waterproof cement fiber wallboard 13, its flexural strength ≥ 15 MPa, block residual water vapor and guide to the inside of the polymer cement waterproof mortar and its protective layer 15 finish layer evaporate, construction joint 10 meet water expansion waterstop 9 meet water expansion 300%, dynamic sealing structure deformation joint; air vent 12 regularly discharge cavity humidity, maintain air pressure balance, the periphery 3:7 clay compaction layer reduces the influence of groundwater level, cement mortar protective layer 6 resist mechanical damage, form from outside to inside of progressive type of waterproof drainage system.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application and does not limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A basement side wall waterproofing and drainage combined structure during top-down construction, comprising a P8 impermeable grade continuous wall serving as a side wall (2), one side of the P8 impermeable grade continuous wall serving as a side wall (2) being sprayed with waterproof paint (5) and waterproofing agent (4), and a cement mortar protective layer (6), characterized in that: The P8 anti-permeable continuous wall serving as a side wall (2) is internally provided with a waterproof cement fiber wallboard (13), a cavity is arranged between the P8 anti-permeable continuous wall serving as a side wall (2) and the waterproof cement fiber wallboard (13), an exhaust hole (12), a water passing hole reserved sleeve (11), a downspout and a drainage ditch (14) are arranged in the cavity.

2. The basement sidewall waterproofing and drainage combined structure during top-down construction according to claim 1, characterized in that: One side of the P8 anti-permeable continuous wall serving as a side wall (2) is provided with a structural floor (7), and one side of the P8 anti-permeable continuous wall serving as a side wall (2) is provided with a sprayed concrete leveling (3).

3. The basement sidewall waterproofing and drainage combined structure during top-down construction according to claim 2, characterized in that: One side of the structural floor (7) is provided with a construction joint (10), and one side of the P8 anti-permeable continuous wall serving as a side wall (2) is provided with another construction joint (10).

4. The basement sidewall waterproofing and drainage combined structure during top-down construction according to claim 1, characterized in that: The inside of the waterproof cement fiber wallboard (13) is a polymer cement waterproof mortar and a protective layer (15) thereof.

5. The basement sidewall waterproofing and drainage combined structure during top-down construction according to claim 1, characterized in that: The P8 anti-permeable continuous wall serving as a side wall (2) and the structural floor (7) are connected through embedded steel bars (8), and a plurality of water-swelling waterstops (9) are arranged at the junction.

Images