Water-permeable and leveling integrated ground structure for basement and construction method of water-permeable and leveling integrated ground structure

Abstract

The invention provides a permeable and leveling integrated ground structure for a basement, which comprises a base structure layer, a silica sol mucilage layer, a silica sol permeable leveling layer and a silica sol inorganic millstone surface layer, and the silica sol mucilage layer comprises the following components in parts by weight: 250-300 parts of cement and 20-30 parts of silica sol rubber powder; the silica sol water-permeable leveling layer is prepared from the following components in parts by weight: 150 to 200 parts of cement, 5 to 10 parts of silica sol powder and 800 to 850 parts of fine aggregate; the surface layer comprises the following components in parts by weight: 5-10 parts of silica sol powder, 15-20 parts of a self-waterproof additive and 6-10 parts of an anti-skid material. The invention further discloses a specific construction method of the ground structure. The silica sol mortar layer, the silica sol water-permeable leveling layer and the silica sol inorganic millstone surface layer are sequentially poured on the base structure layer, a silica sol series ground structure is formed, the silica sol water-permeable leveling layer achieves the functions of leveling, water filtering and millstone decoration, the leveling and decoration integrated forming function is achieved, and the silica sol inorganic millstone surface layer has the advantages of being simple in structure and convenient to use. And the ground has a whole-body property.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a water-permeable and leveling integrated ground structure for a basement and a construction method thereof. Background Art

[0002] The field of construction technology covers a range of construction methods and technologies involving buildings and structures. This field includes not only traditional construction technologies such as civil engineering, structural engineering, architectural design and building materials science, but also emerging technologies and methods such as green buildings, smart buildings and architectural innovations using advanced materials and technologies. In particular, in floor construction technology, a variety of new materials and technologies have been developed in recent years to improve the durability, aesthetics and environmental performance of the floor, such as concrete floors using special chemical mixtures, epoxy resin floors and various decorative and functional terrazzo floors.

[0003] However, in the prior art, a water filter plate is generally used to filter water from the ground. The water filter plate itself has an egg-tart-like structure. When it is laid, due to the uneven ground, it is impossible to ensure that each position is close to the ground, so cavities are prone to occur, affecting the construction of subsequent processes (such as steel bar pouring, etc.), thereby affecting the quality of the entire ground (such as cracking, etc.); at the same time, after the water filter plate is laid, during the subsequent construction processes, the workers' trampling is also likely to damage the water filter plate structure, thereby affecting the quality of the ground.

[0004] In addition, in the existing ground structure, it is generally necessary to use glue for leveling, terrazzo decoration, interface treatment and other multiple processes to be processed separately. The more processes, the easier it is to cause problems such as cracking of the ground. Moreover, the thickness of the ground structure formed by multiple construction processes will increase, especially for ground structures such as basements and garages. The increase in thickness will reduce the height of the usable space. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a ground structure with integrated water permeable leveling for a basement and a construction method thereof.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a basement with a water-permeable leveling integrated ground structure: comprising a basic structure layer, a silica sol mortar layer, a silica sol water-permeable leveling layer and a silica sol inorganic terrazzo surface layer;

[0007] The silica sol mortar layer comprises the following components in parts by weight: 250-300 parts of cement, 20-30 parts of silica sol powder;

[0008] The silica sol permeable leveling layer comprises the following components in parts by weight: 150-200 parts of cement, 5-10 parts of silica sol powder, 800-850 parts of fine aggregate;

[0009] The silica sol inorganic grindstone surface layer comprises the following components by weight: 5-10 parts of silica sol powder, 15-20 parts of self-waterproof additives, and 6-10 parts of anti-skid materials.

[0010] Preferably, the cement is aluminate cement, sulphoaluminate cement or ferroaluminate cement, the fine aggregate is pebbles or melon-seed flakes, the anti-slip material is a 1:1 mixture of mica and talc, and the self-waterproofing additive is silicate or phosphate or titanate.

[0011] The present invention also provides a construction method for a basement water-permeable leveling integrated ground structure, comprising the following steps:

[0012] S1: Treatment of the basic structure layer, including cleaning the ground, opening the water diversion trough, and placing the PVC pipe upside down to form a water diversion structure;

[0013] S2: pouring the mixed silica sol slurry layer onto the treated base structure layer to fix the ground structure;

[0014] S3: The mixed silica sol permeable leveling layer is poured onto the silica sol slurry layer formed in step S2, and spread out, flattened, leveled and seepage treated ground structures, the thickness of the silica sol permeable leveling layer after molding is 2-3cm;

[0015] S4: pouring the mixed silica sol inorganic grindstone surface layer onto the silica sol water-permeable leveling layer formed in step S3, waterproofing the ground structure, and then grinding it to obtain a ground structure with leveling and decoration integrated into one.

[0016] Preferably, the S1 step is specifically as follows:

[0017] Remove impurities from the ground, use a high-pressure water gun to clean the surface dirt, use tools to remove solid attachments, wipe hard-to-remove traces with a rag, use a soft broom to sweep residual particles, use a dry rag to clean the surface particles, collect the waste after cleaning, and obtain the basic structure layer after cleaning;

[0018] Based on the cleaned foundation structure layer, a water diversion trough is opened to place the PVC pipe. The PVC pipe is arranged upside down and close to the ground surface. The pipe mouth is fixed with tools. The pipe is manually squeezed to sink firmly. The pipe joints are checked section by section to obtain the foundation structure layer after the PVC pipe is placed.

[0019] Based on the basic structural layer after the PVC pipe is placed, the water diversion structure is constructed, the pipe mouth area is arranged at a suitable spacing, the pipeline passage is stabilized by a compaction operation, the position of the local area is fine-tuned, and excess dirt is removed again until a continuous water diversion passage is formed to obtain the water diversion structure of the basic structural layer.

[0020] Preferably, the S2 step is specifically as follows:

[0021] Based on the water diversion characteristic data of the foundation structure layer, the flow distribution and dynamic uniform stratification algorithm are used to carry out directional pouring and layered leveling distribution of the silica sol mortar mixture to generate a homogeneous and non-deposited silica sol mortar mixed layer;

[0022] Based on the silica sol-mortar mixed layer, the surface stress distribution and pore gas reduction control algorithm are used to carry out directional pressurization and surface leveling operations to obtain a uniformly compacted mortar layer;

[0023] Based on the uniform compaction of the mortar layer, surface maintenance operations are carried out. The material surface is covered with a wet soft cloth. The wet cloth is replaced regularly to keep the surface moist. A wooden scraper is used to touch it lightly to judge the degree of hardening until the mortar is stable to obtain a silica sol mortar layer.

[0024] Preferably, the S3 step is specifically as follows:

[0025] Based on the silica sol slurry layer, the silica sol water filtration slurry is poured. The slurry is poured at a uniform speed in a container, and the material is distributed left and right with a spatula. At the same time, moderate downward pressure is applied to allow the slurry to penetrate into the surface pores, and then a straight scraper is used to gently push to eliminate unevenness, thereby obtaining a dispersed water filtration layer.

[0026] Based on the dispersed water filter layer, the flattening process is carried out. The material is compacted horizontally with a flat wooden board. The wooden board is held steady by hand to slide to ensure a uniform layer. A hard scraper is used to lightly scrape the high points and a wet rag is used to wipe the surface particles. The surface texture is continuously observed until it is flat and consistent to obtain a flattened water filter layer.

[0027] Based on the flattening of the water filter layer, the water filter thickness is adjusted, the thickness is measured with a metal ruler, the slurry is replenished and scraped flat again, and then the surface is wiped with a dry cloth to remove residual fine powder to form uniform pores to obtain a silica sol water-permeable leveling layer.

[0028] Preferably, the surface stress distribution and pore gas reduction control algorithm is according to the formula:

[0029] ;

[0030] Calculate the pore gas reduction index; where, is the pore gas reduction index, For the The pressure force parameters during the first pressurization are: For the Sub-pressurization duration interval parameters, is the initial pore structure benchmark parameter, is the number of pressurization times, is the reference offset parameter, is the local strain association parameter, is the correction coefficient group.

[0031] Preferably, the flow distribution and dynamic uniform stratification algorithm is in accordance with the formula:

[0032] ;

[0033] Calculate the layer thickness; where, is the layer thickness, is the weighting parameter, For reference adjustment parameters, is the correction factor, For the The flow rate of each nozzle, For the The pouring duration of each nozzle, is the total area to be covered, is the number of nozzles.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] (1) The present invention forms a silica sol series ground structure by sequentially pouring a silica sol mortar layer, a silica sol permeable leveling layer and a silica sol inorganic terrazzo surface layer on the basic structure layer, wherein the silica sol permeable leveling layer realizes the functions of leveling, water filtering and terrazzo decoration. That is to say, the terrazzo effect of the silica sol inorganic terrazzo surface layer comes from the silica sol permeable leveling layer, realizing the functions of integrated leveling and decoration, reducing the ground treatment process and facilitating operation;

[0036] (2) Multiple processes are integrated into one process to make the floor have a continuous structure. Silica sol has excellent adhesion and bite force, which can improve the anti-cracking and self-waterproofing performance of the floor structure. The reduction of processing steps can also reduce the overall height of the floor structure, especially for underground garages, which can expand the available height of the garage. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a step diagram of the construction method proposed by the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The present invention provides a ground structure with integrated water-permeable leveling for basements, comprising a basic structure layer, a silica sol mortar layer, a silica sol water-permeable leveling layer and a silica sol inorganic grindstone surface layer;

[0041] The silica sol mortar layer includes the following components by weight: 250-300 parts of cement, 20-30 parts of silica sol powder;

[0042] The silica sol water-permeable leveling layer includes the following components by weight: 150-200 parts of cement, 5-10 parts of silica sol powder, and 800-850 parts of fine aggregate;

[0043] The silica sol inorganic grindstone surface layer comprises the following components by weight: 5-10 parts of silica sol powder, 15-20 parts of self-waterproof additives, and 6-10 parts of anti-skid materials.

[0044] In this embodiment, the cement is aluminate cement, sulphoaluminate cement or ferroaluminate cement, the fine aggregate is pebbles or melon seed flakes, the anti-slip material is a 1:1 mixture of mica and talc, and the self-waterproofing additive is silicate or phosphate or titanate.

[0045] The present invention also provides a construction method of a water-permeable and leveling integrated ground structure for a basement, comprising the following steps:

[0046] S1: Treatment of the basic structure layer, including cleaning the ground, opening the water diversion trough, and placing the PVC pipe upside down to form a water diversion structure;

[0047] S2: pouring the mixed silica sol mortar layer onto the treated base structure layer to fix the ground structure;

[0048] S3: pouring the mixed silica sol water-permeable leveling layer onto the silica sol mortar layer formed in step S2, spreading and flattening the layer, leveling and water seepage treatment the ground structure, and the thickness of the formed silica sol water-permeable leveling layer is;

[0049] S4: pouring the mixed silica sol inorganic grindstone surface layer onto the silica sol water-permeable leveling layer formed in step S3, waterproofing the ground structure, and then grinding it to obtain a ground structure with leveling and decoration integrated into one.

[0050] In this embodiment, step S1 is specifically as follows:

[0051] Remove impurities from the ground, use a high-pressure water gun to clean surface dirt, use tools to remove solid attachments, wipe hard-to-remove traces with a rag, use a soft broom to sweep residual particles, use a dry rag to clean surface particles, collect the waste after cleaning, and obtain the basic structure layer after cleaning.

[0052] Based on the cleaned basic structure layer, PVC pipes are placed, water diversion channels are opened, PVC pipes are arranged upside down and close to the ground, the pipe mouths are fixed with tools, the pipes are manually squeezed to sink firmly, and the pipe joints are checked section by section to obtain the basic structure layer after the PVC pipes are placed.

[0053] Based on the basic structural layer after the PVC pipe is placed, the water diversion structure is constructed, the pipe mouth area is arranged at a suitable spacing, the pipeline passage is stabilized by a compaction operation, the position of the local area is fine-tuned, and excess dirt is removed again until a continuous water diversion passage is formed to obtain the water diversion structure of the basic structural layer.

[0054] After the surface area to be treated on site has been determined, the water pressure of the high-pressure water gun is set to about 10MPa. This value is determined based on the typical water pressure range specified in the equipment manual for similar cleaning tasks and on-site operating experience. The nozzle is kept about 5cm away from the ground surface and sprayed continuously to loosen the surface dust and discharge it. If solid particles are still attached, use a flat-head shovel to gently remove them at an angle of about 30°, and then use a rag dipped in neutral detergent to repeatedly wipe off the sticky marks that are difficult to remove. After wiping, rinse again with clean water to remove stubborn residues. Then use a soft broom to gently sweep the remaining fine particles along the surface of the area, and then use a dry rag to gently wipe off the surface particles. All cleaning waste generated is collected in a recycling container placed at the edge of the site in advance, and finally the current state is recorded as the basic structure layer after cleaning.

[0055] On the cleaned basic structure layer, prepare a PVC pipe with a diameter of about 50mm and place it upside down so that the pipe mouth faces downward and is in close contact with the ground. Use metal clamps to fix the pipe mouth initially, tighten the clamps slightly to prevent movement, and use a rubber mallet weighing about 0.5kg to vertically tap the pipe wall to make the pipe gradually sink close to the ground. Adjust the strength and number of tapping according to the hardness of the PVC pipe material and the flatness of the ground. Observe the degree of pipe sinking and slightly rotate the pipe angle to reduce the gap when necessary. Repeat the above steps to check and tap adjacent PVC pipes section by section until there is no obvious gap between the pipe sections. After completion, record the current state as the basic structure layer after the PVC pipe is placed.

[0056] On the foundation structure layer after the PVC pipe is placed, according to the water diversion path position marked in the pre-prepared construction drawings, the pipe mouth spacing is set to about 100mm. This spacing is determined by referring to the statistical data of many similar projects and the results of on-site surveying and mapping. The positioning points corresponding to the installation area are marked around the pipe mouth. The horizontal and vertical coordinates of each positioning point are measured point by point using a handheld metal ruler. The construction position is determined on the spot according to the measurement results. The iron pressure rod is aimed at the pipe mouth and lightly pressed. The force value in the range of about 0.8kg to 1.2kg is used as a reference. This force value is measured by the previous simulation test. After multiple compression operations, the height change of the pipe mouth is observed. , until there are no protruding nodes in the internal passage of the pipeline, measure the coordinate difference between the pipe mouth position and the initial positioning point again, if the deviation exceeds 3mm, slightly rotate and adjust the pipe mouth joint and re-tighten it, repeat this adjustment and measurement, the 3mm tolerance value is obtained by comparing the finished product data of many similar projects, when the pipe mouth position meets the tolerance requirements, use a small shovel to remove loose debris, wipe the surface with a cloth dipped in neutral detergent, if there are stubborn particles, use a fine blade with a thickness of about 0.3mm to lightly scrape it, until there are no remaining particles around, and then visually inspect whether the passage is smooth and unobstructed along the direction of the pipeline, and record it after confirming that there are no obstacles to obtain the water diversion structure of the basic structure layer.

[0057] In this embodiment, step S2 is specifically as follows:

[0058] Based on the water diversion characteristic data of the foundation structure layer, the flow distribution and dynamic uniform stratification algorithm are used to carry out directional pouring and layered leveling distribution of the silica sol mortar mixture to generate a homogeneous and non-deposited silica sol mortar mixed layer.

[0059] Based on the silica sol-mortar mixed layer, the surface stress distribution and pore gas reduction control algorithm are adopted to carry out directional pressurization and surface leveling operations to obtain a uniformly compacted mortar layer.

[0060] Based on the uniform compaction of the mortar layer, surface maintenance operations are carried out. The material surface is covered with a wet soft cloth. The wet cloth is replaced regularly to keep the surface moist. A wooden scraper is used to touch it lightly to judge the degree of hardening until the mortar is stable to obtain a silica sol mortar layer.

[0061] Specifically, based on the water diversion characteristic data of the foundation structure layer and the values ​​recorded from multiple similar constructions in the early stage, the adjustable valve on the slurry supply pump is rotated to the corresponding scale to make the slurry flow rate about 2 liters / minute. The 2 liters / minute reference value is determined by the average value measured by the casting experiment of similar materials. The nozzle is installed on a moving device with a horizontal guide rail and moves uniformly along a pre-calibrated straight path. The moving speed is about 0.5 meters / second. The 0.5 meters / second is selected based on the comparison data of the previous spraying thickness and speed. A steel needle with a diameter of about 1 mm is used to pierce the newly cast area to measure the layer thickness. If the layer thickness is consistent with the expected value of 5 mm, the thickness of the layer is 0.5 meters / second. If the difference exceeds 0.5 mm, adjust the distance between the nozzle and the ground. The 0.5 mm difference is a precision parameter obtained based on actual measurement statistics after the material solidifies. Repeat the local adjustment of the slurry discharge speed, nozzle distance and moving speed for many times, form adjacent stacking layers in each area, and use a wooden spatula to lightly press and scrape the surface of the layer to remove the protruding parts. If there is a slight depression in the local area, appropriately reduce the nozzle movement speed to increase the thickness there. Continuously measure and record the layer thickness values ​​and corresponding flow data at each position, and achieve continuous and smooth surface distribution through multiple parallel route superpositions, and finally obtain a silica sol-gel slurry mixed layer with uniform internal structure and smooth surface without local aggregation.

[0062] Based on the silica sol-colloid mixed layer, referring to the stress data recorded from multiple compaction operations in the previous experiments, the initial pressure was set to about 50 Newtons by installing a micro pressure gauge with an accuracy of about 0.1 Newtons on the pressure head to control the pressure. The 50 Newtons value was derived from the average value statistics of the same material compacted under similar conditions. If the force reading at a certain point during compaction deviates from 50 Newtons by more than ±5 Newtons, the fine-tuning handle is rotated to change the pressure. The ±5 Newton margin is determined by measuring the elastic range of the material. At the same time, an air guide tube with a diameter of about 0.5 mm is inserted into the compaction area to The internal gas is discharged slowly, and the gas conduction rate is manually adjusted according to the appropriate valve opening recorded in the early stage. The exhaust process is kept synchronous with the pressurization process. The surface of the layer is gently stroked with a wooden flat board to flatten the local protrusions. The layer thickness is measured at multiple points using a thickness gauge with an accuracy of 0.1 mm. If the layer thickness deviation exceeds 0.2 mm, pressurize and measure again. The 0.2 mm deviation is calculated based on the ideal thickness difference after the material is cured. After repeated pressurization, measurement and recording of the corresponding pressure values ​​and layer thickness data, a uniformly compacted mortar layer that meets the set parameters is finally presented.

[0063] Based on the uniform compaction of the mortar layer, prepare several pieces of soft cotton cloth of about 20 cm × 20 cm, soak them in clean water, and then slightly wring them dry. Cover them evenly on the surface of the compacted layer. Replace the wet cloth every 2 hours. The 2-hour replacement interval is determined based on the average results of multiple measurements of moisture absorption rate and surface drying rate of similar materials. At the same time, touch the surface with a wooden scraper to judge the hardening condition. If the surface no longer has obvious depressions when touched and feels slightly elastic, record the current time and continue to observe for 1 hour. The 1-hour duration is based on the average hardening stability time of materials with the same formula under similar climatic conditions. If there is no significant change in the surface hardness within this hour, stop replacing the wet cloth and remove the covering, and record the surface status data at this time again, and finally form a silica sol mortar layer that meets the hardness requirements set in the early stage.

[0064] In this embodiment, step S3 is specifically as follows:

[0065] Based on the silica sol slurry layer, the silica sol water filtration slurry is poured. The slurry is poured at a uniform speed in a container, and the material is distributed left and right with a spatula. At the same time, moderate pressure is applied to allow the slurry to penetrate into the surface pores. A straight scraper is then used to gently push to eliminate unevenness to obtain a dispersed water filtration layer.

[0066] Based on the dispersed water filter layer, a flattening process is carried out. A flat wooden board is used to compact the material horizontally. The wooden board is held steady by hand to slide to ensure a uniform layer. A hard scraper is used to lightly scrape the high points and a wet rag is used to wipe the surface particles. The surface texture is continuously observed until it is flat and consistent to obtain a flattened water filter layer.

[0067] Based on the flattening of the water filter layer, the water filter thickness is adjusted, the thickness is measured with a metal ruler, the slurry is replenished and scraped flat again, and then the surface is wiped with a dry cloth to remove residual fine powder to form uniform pores to obtain a silica sol water-permeable leveling layer.

[0068] Specifically, based on the silica sol slurry layer, an open container containing silica sol filtration slurry is placed at a height of about 10 cm from the surface and tilted at an angle of about 30 degrees and slowly poured to make the slurry flow out at a uniform speed of about 0.2 liters / minute. The 0.2 liters / minute value is determined by statistically averaging the experimental data of multiple pouring of slurries of the same material at room temperature. A metal spatula about 20 cm long is used to hold the spatula handle horizontally and move back and forth in the slurry diffusion area with a manual downward force in the range of about 5 N to 8 N. The 5 N to 8 N range is obtained by multiple downward pressure tests on slurries with the same formula, and then corrected according to the statistical data of the pore filling rate measured after downward pressure. When moving the spatula, keep the bottom surface of the spatula Incline at about 5 degrees to the surface to distribute the slurry evenly on both sides. Use a steel needle with a diameter of about 2 mm to lightly pierce the surface to confirm whether the slurry has penetrated into the pores. If the penetration depth is less than 2 mm, slightly increase the downward pressure to the upper limit of 8 Newtons to allow the slurry to penetrate further downward. Then use a straight wooden scraper with a length of about 30 cm, hold both ends of the scraper with both hands and gently push forward. Push about 5 cm each time and observe the ripple shape of the surface. If local bulges appear, slightly increase the thrust by about 1-2 Newtons at that location until the ripples disappear and a basically uniform horizontal surface is presented. Repeat the gentle push action many times and fine-tune the pouring speed and spatula operation force when necessary to keep the overall thickness distribution stable and finally obtain a dispersed drainage layer.

[0069] Based on the dispersed water filter layer, a flat wooden board with a length of about 40 cm and a thickness of about 1 cm is placed horizontally on the surface of the water filter layer. Grasp the edge of the wooden board with both hands and gently apply a downward force of about 10 to 15 Newtons. The range of 10 to 15 Newtons is selected by compromise based on the relationship between compaction and force measured in multiple similar constructions. If high spots appear in local areas, use a pointed hard scraper at an incident angle of about 30 degrees to scrape off the protruding parts, and then gently wipe the surface with a cotton wet rag dipped in clean water. The force used in the wiping process does not exceed 5 Newtons, and the 5 Newton force value is determined by measuring the surface particle size and adhesion. Repeat the compaction, scraping and wiping process many times, and observe the surface texture after flattening each area. If the texture undulation still exceeds a height difference of about 0.3 mm, the 0.3 mm is determined by the statistically acceptable surface flatness value in the finished product test, then the high part is slightly compacted and scraped again until the texture is uniform and flat, and finally a flattened water filter layer is obtained.

[0070] Based on the flattened water filter layer, a metal ruler is used to measure the surface thickness in multiple directions, and the measured values ​​are recorded and compared with the expected average thickness of similar materials in the early stage. The expected thickness value is obtained by statistics of similar engineering experience and finished product layer requirements. If it is found that the current layer thickness is less than the expected value by more than 0.5 mm, and the 0.5 mm tolerance value is derived from the actual measurement results of the performance requirements for later use, then an appropriate amount of water filter slurry is poured into the area again, and a metal spatula with a length of about 20 cm is used to push the material horizontally and slightly press downward, and a force of about 5 Newtons is used to promote the slurry to be evenly distributed again. If there is still a fine floating powder residue, wipe the surface gently with a dry cloth. The force applied when the cloth slides close to the surface is controlled to be between about 1-2 Newtons. The force is obtained by comparing the amount of remaining powder and the force applied multiple times. After multiple supplements, pressing and wiping, the thickness is measured again to confirm that it is consistent with the expected value, and finally a silica sol permeable leveling layer with a uniform pore structure and reaching the target thickness is formed.

[0071] In the above steps, especially the processing in step S3, the leveling and water-permeable effects are achieved. Combined with the subsequent grinding operation, the fine aggregate can also be highlighted to form a decorative effect. That is to say, the silica sol water-permeable leveling layer integrates the existing leveling layer, terrazzo decorative layer and other processes to achieve one-piece leveling and decoration, simplify the processing procedures, and improve the convenience of construction. Moreover, the more processes there are, the more likely it is that the ground will crack. Therefore, the structural optimization of the present invention can improve the ground's anti-cracking and self-waterproofing properties.

[0072] At the same time, combined with the fact that both S2 and S4 are silica sol series mortars, silica sol has good bonding and biting forces. Therefore, the silica sol water-permeable leveling layer only needs a thin layer of mortar to wrap the fine aggregate, prevent the fine aggregate from sinking to the bottom, and improve the decorative effect. Through multiple test results, it is concluded that the thickness of the silica sol water-permeable leveling layer can be 2-3cm, while the total thickness of traditional leveling layers, terrazzo decorative layers and other processes is more than 5cm. Obviously, the ground structure formed by the present invention greatly reduces the ground thickness, especially for underground garages, the available height of the garage can be expanded, and the slurry is easy to spread and can solidify quickly, which is convenient for actual construction.

[0073] In this embodiment, the surface stress distribution and pore gas reduction control algorithm is based on the formula:

[0074] ;

[0075] Calculate the pore gas reduction index; where, is the pore gas reduction index, For the The pressure force parameters during the first pressurization are: For the Sub-pressurization duration interval parameters, is the initial pore structure benchmark parameter, is the number of pressurization times, is the reference offset parameter, is the local strain association parameter, It is the correction coefficient group; in the formula, the calculated layer thickness is 2-3cm, and the existing water filtration layer + stone decoration layer must be more than 5cm. The thickness is reduced, and the layer treatment is also reduced to prevent ground cracking and facilitate operation.

[0076] first, and The pressure intensity and duration parameters need to be set according to the actual construction environment. is the initial pore structure benchmark parameter, obtained by fitting multiple sets of test data. is a reference offset parameter used to modify the micropore distribution in different regions so that the local pore characteristics can be adapted in the calculation. For the The local strain parameters generated by the secondary pressurization are obtained by measuring the deformation data of the material surface after compaction. The absolute value and square root operation of strengthen the nonlinear processing, so that it is more adaptable in micropore regulation. is a correction coefficient group, and its ratio is determined by comparing multiple sets of material rheological curves and gas distribution test data The confirmation step of this ratio is to first select several reference test groups and use the least square method or related fitting method to find Minimize the error to ensure that the overall compaction calculation is more reasonable and stable. Finally, substituting the above parameters into the formula, a new index can be obtained under different pore distribution and rheological conditions. Make the calculation results more accurate and flexible.

[0077] In this embodiment, the flow distribution and dynamic uniform stratification algorithm are based on the formula:

[0078] ;

[0079] Calculate the layer thickness; where, is the layer thickness, is the weighted parameter associated with the water diversion characteristics of the basic structural layer, For reference adjustment parameters, is the correction coefficient determined based on the fitting of the material rheological characteristics and water diversion parameters. For the The flow rate of each nozzle, For the The pouring duration of each nozzle, is the total area to be covered, is the number of nozzles.

[0080] First, determine the water diversion characteristic data of the foundation structure layer The value of each Related to the water distribution characteristics of the local area of ​​the corresponding nozzle, and then select the reference adjustment parameters , in order to adapt to the local deviation of the water diversion characteristics, More reasonable in calculation, reuse The nonlinear effects of water diversion characteristics are reconciled and smoothed, and the and To calculate the basic flow and time contribution, the correction factor and The selection of needs to be done by comparing multiple groups of test data (such as fitting the rheological properties of the material, the viscosity change in the local area, and the permeability curve data of the water diversion structure layer) to obtain an appropriate value, and then into the calculation process, so that This overall adjustment balances the pouring rate and material uniformity in different areas, and the final result is It will be more adaptable to the actual construction environment, allowing the calculated layer thickness to achieve higher accuracy and flexibility under dynamic water diversion and rheological conditions.

[0081] By introducing Nonlinear processing and multi-parameter correction terms , which can make more flexible dynamic adjustments to the water diversion characteristics, balance the material flow rate in the local area and the layer thickness distribution, thereby improving the accuracy and stability of the layer thickness calculation; the nonlinear processing term adaptively corrects the water diversion characteristics in the formula, so that the thickness of the casting layer can still maintain a high degree of uniformity and no accumulation when facing different water diversion rates and material rheological properties; the parameters introduced in this way not only make the calculation results more in line with the actual construction conditions, but also provide a more efficient and reliable technical path for the casting of silica sol mortar in the water diversion environment of complex foundation structure layers; the overall solution has stronger scalability and adaptability while improving the accuracy, which provides a useful reference and support for the optimization of construction technology under diversified conditions in the future.

Claims

1. A water-permeable and leveling integrated ground structure for a basement, characterized by: It includes a basic structure layer, a silica sol mortar layer, a silica sol water-permeable leveling layer and a silica sol inorganic grindstone surface layer; The silica sol mortar layer comprises the following components by weight: 250-300 parts of cement and 20-30 parts of silica sol powder; The silica sol water-permeable leveling layer comprises the following components by weight: 150-200 parts of cement, 5-10 parts of silica sol powder, and 800-850 parts of fine aggregate; The silica sol inorganic grindstone surface layer comprises the following components by weight: 5-10 parts of silica sol powder, 15-20 parts of self-waterproof additives, and 6-10 parts of anti-skid materials.

2. The integrated water-permeable and leveling floor structure for basements according to claim 1 is characterized in that: The cement is aluminate cement, sulphoaluminate cement or ferroaluminate cement, the fine aggregate is pebbles or melon-seed flakes, the anti-slip material is a mixture of mica and talc in a ratio of 1:1, and the self-waterproofing additive is silicate, phosphate or titanate.

3. A construction method of a water-permeable and leveling integrated ground structure for a basement according to any one of claims 1 to 2, characterized in that: The following steps are involved: S1: Treatment of the basic structure layer, including cleaning the ground, opening the water diversion trough, and placing the PVC pipe upside down to form a water diversion structure; S2: pouring the mixed silica sol mortar layer onto the treated base structure layer to fix the ground structure; S3: pouring the mixed silica sol water-permeable leveling layer onto the silica sol mortar layer formed in step S2, spreading and flattening the layer, leveling the ground structure and performing water seepage treatment. The thickness of the formed silica sol water-permeable leveling layer is 2-3 cm; S4: pouring the mixed silica sol inorganic grindstone surface layer onto the silica sol water-permeable leveling layer formed in step S3, waterproofing the ground structure, and then grinding it to obtain a ground structure with leveling and decoration integrated into one.

4. The construction method of the integrated water-permeable and leveling ground structure for basements according to claim 3 is characterized in that: The S1 step is specifically as follows: Remove impurities from the ground, use a high-pressure water gun to clean the surface dirt, use tools to remove solid attachments, wipe hard-to-remove traces with a rag, use a soft broom to sweep residual particles, use a dry rag to clean the surface particles, collect the waste after cleaning, and obtain the basic structure layer after cleaning; Based on the cleaned foundation structure layer, a water diversion trough is opened to place the PVC pipe. The PVC pipe is arranged upside down and close to the ground surface. The pipe mouth is fixed with tools. The pipe is sunk firmly by manual squeezing. The pipe joints are checked section by section to obtain the foundation structure layer after the PVC pipe is placed. Based on the basic structural layer after the PVC pipe is placed, the water diversion structure is constructed, the pipe mouth area is arranged at a suitable spacing, the pipeline passage is stabilized by a compaction operation, the position of the local area is fine-tuned, and excess dirt is removed again until a continuous water diversion passage is formed to obtain the water diversion structure of the basic structural layer.

5. The construction method of the integrated water-permeable and leveling ground structure for basements according to claim 4 is characterized in that: The S2 step is specifically as follows: Based on the water diversion characteristic data of the foundation structure layer, the flow distribution and dynamic uniform stratification algorithm are used to carry out directional pouring and layered leveling distribution of the silica sol mortar mixture to generate a homogeneous and non-deposited silica sol mortar mixed layer; Based on the silica sol-mortar mixed layer, the surface stress distribution and pore gas reduction control algorithm are used to perform directional pressurization and surface leveling operations to obtain a uniformly compacted mortar layer; Based on the uniform compaction of the mortar layer, surface maintenance operations are carried out. The material surface is covered with a wet soft cloth. The wet cloth is replaced regularly to keep the surface moist. A wooden scraper is used to touch it lightly to judge the degree of hardening until the mortar is stable to obtain a silica sol mortar layer.

6. The construction method of the integrated water-permeable and leveling ground structure for basements according to claim 5, characterized in that: The S3 step is specifically as follows: Based on the silica sol slurry layer, the silica sol water filtration slurry is poured. The slurry is poured at a uniform speed in a container, and the material is distributed left and right with a spatula. At the same time, moderate downward pressure is applied to allow the slurry to penetrate into the surface pores, and then a straight scraper is used to gently push to eliminate unevenness, thereby obtaining a dispersed water filtration layer. Based on the dispersed water filter layer, the flattening process is carried out. The material is compacted horizontally with a flat wooden board. The wooden board is held steady by hand to slide to ensure a uniform layer. A hard scraper is used to lightly scrape the high points and a wet rag is used to wipe the surface particles. The surface texture is continuously observed until it is flat and consistent to obtain a flattened water filter layer. Based on the flattening of the water filter layer, the water filter thickness is adjusted, the thickness is measured with a metal ruler, the slurry is replenished and scraped flat again, and then the surface is wiped with a dry cloth to remove residual fine powder to form uniform pores to obtain a silica sol water-permeable leveling layer.

7. The construction method of the integrated water-permeable and leveling ground structure for basements according to claim 5, characterized in that: The surface stress distribution and pore gas reduction control algorithm is according to the formula: ； Calculate the pore gas reduction index; where, is the pore gas reduction index, For the The pressure force parameters during the first pressurization are: For the Sub-pressurization duration interval parameters, is the initial pore structure benchmark parameter, is the number of pressurization times, is the reference offset parameter, is the local strain association parameter, is the correction coefficient group.

8. The construction method of the integrated water-permeable and leveling ground structure for basements according to claim 5, characterized in that: The flow distribution and dynamic uniform stratification algorithm is based on the formula: ; Calculate the layer thickness; where, is the layer thickness, is the weighting parameter, For reference adjustment parameters, is the correction factor, For the The flow rate of each nozzle, For the The pouring duration of each nozzle, is the total area to be covered, is the number of nozzles.

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