Waterproof construction system and method for water-carrying operation of basement outer wall fertilizer groove

Abstract

The waterproof construction system comprises an L-shaped concrete block body, and the L-shaped concrete block body is provided with at least one exhaust grouting pipe penetrating through the inner side and the outer side of the L-shaped concrete block body and at least one air inlet overflow pipe penetrating through the inner side and the outer side of the L-shaped concrete block body. The exhaust grouting pipe and the air inlet overflow pipe are located on the outer side of the L-shaped concrete block body, outwards-extending ports of the exhaust grouting pipe and the air inlet overflow pipe are working ports, and valves are arranged on the ports located on the inner side of the exhaust grouting pipe and the air inlet overflow pipe. By means of the system composed of the L-shaped concrete block, the exhaust grouting pipe, the air inlet overflow pipe, the inflation sealing strip and the waterproof coiled material, a closed cavity isolated from the external humid environment can be rapidly constructed at the bottom of the fertilizer groove where water continuously seeps, and the water seepage effect of the fertilizer groove can be effectively improved through the active vacuumizing and air supply drying process. A wet base layer which cannot be naturally dried is converted into a locally dried construction surface, necessary conditions are created for firm bonding of the waterproof coiled material and the structural outer wall, and the technical bottleneck that construction cannot be performed in a water environment in a traditional method is solved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a waterproofing construction system and method for waterproofing basement exterior wall trenches while the walls are wetted. Background Technology

[0002] In construction projects, the trench area formed between the basement exterior wall and the foundation pit support structure is a difficult point for waterproofing construction. Especially when the groundwater level in the foundation pit is high or there are continuous leakage points, the bottom of the trench will have water accumulation or dampness for a long time, making it impossible for the base layer to dry.

[0003] Traditional waterproofing construction methods require a solid, flat, and dry substrate. In such wet or damp environments, waterproofing materials such as rolls cannot effectively bond to the exterior walls of the structure. Forced construction can easily lead to blistering and water seepage in the waterproofing layer, ultimately causing leakage and seriously affecting the safety and durability of underground structures.

[0004] Therefore, there is an urgent need to provide a technical solution that can effectively complete the waterproofing layer construction in a wet or damp environment at the bottom of the fertilizer tank, and ensure that the waterproofing layer is firmly bonded to the external wall of the structure. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a waterproof construction system and method for basement exterior wall trenching with water, solving the technical problem that effective waterproof construction cannot be carried out under the conditions of continuous water seepage in the trenching area and damp base layer in the prior art.

[0006] To achieve the above objectives, the present invention provides a waterproofing construction system for basement exterior wall trenching with water present, comprising: An L-shaped concrete block is provided with at least one venting and grouting pipe extending through its inner and outer sides, and at least one air inlet and overflow pipe extending through its inner and outer sides. The outward-extending ports of the venting and grouting pipes on the outer side of the L-shaped concrete block are working ports, while the ports on the inner side are equipped with valves. The working port of the venting and grouting pipe is positioned lower than the working port of the air inlet and overflow pipe. An air-filled sealing strip is provided around the outer edge of the L-shaped concrete block. Waterproof membrane, used to cover the outside of the L-shaped concrete block during construction; The working port of the air intake overflow pipe is located near the upper edge of the inflation sealing strip.

[0007] By adopting this technical solution, an L-shaped concrete block serves as the operating platform and sealing foundation. Combined with a through-type venting and grouting pipe and an air inlet overflow pipe with varying elevations, as well as an inflatable sealing strip and waterproof membrane located on the outer edge, this constitutes a specialized device that can create a locally dry construction space in a humid environment. This system can quickly isolate a sealed cavity on the surface of a water-permeable exterior wall and actively remove moisture from the cavity through vacuuming and ventilation. This creates the necessary conditions for the reliable bonding of subsequent waterproof materials under dry conditions, fundamentally solving the technical problem of construction being impossible in a wet environment. The placement of the working port of the air inlet overflow pipe near the upper edge of the inflatable sealing strip provides a structural basis for accurately judging the fullness of grouting.

[0008] Furthermore, the exhaust grouting pipe and the air inlet overflow pipe are configured such that their working ports can pass through the waterproof membrane and form a detachable sealed connection with the waterproof membrane at the passing position.

[0009] By adopting this technical solution, the working ports of the exhaust grouting pipe and the air inlet overflow pipe are configured to pass through the waterproof membrane and form a detachable sealed connection, ensuring the sealing reliability of the interface between the pipe and the membrane. On the one hand, this ensures the sealing of the closed cavity during vacuuming and grouting, preventing external moisture from entering. On the other hand, the detachable design allows the device to be easily separated from the cured waterproof layer after construction, facilitating reuse and relocation, thus improving construction efficiency and the economy of the device.

[0010] Furthermore, the inflatable sealing strip is used to press the waterproof membrane tightly against the exterior wall of the structure after inflation.

[0011] By adopting this technical solution, the inflation method provides uniform and adjustable pressure, which can adapt to the slight unevenness of the structural exterior wall surface, ensuring a tight fit between the sealing strip and the complex base surface, thereby effectively isolating external water seepage and creating a dry environment inside; at the same time, its flexible sealing method reduces damage to the structural exterior wall.

[0012] Furthermore, the L-shaped concrete block is equipped with a hoisting unit.

[0013] By adopting this technical solution, a hoisting section is set on the L-shaped concrete block, which facilitates the hoisting, positioning and relocation of the heavy equipment, reduces the difficulty and risk of manual handling, improves construction safety, and makes it possible to carry out zoning and segmented flow operations, which significantly improves the efficiency of the entire waterproofing construction.

[0014] This invention also provides a construction method for a waterproofing system for basement exterior wall trenching with water present, comprising the following steps: S1. System in place: Cover the outside of the L-shaped concrete block with the waterproof membrane and hoist the L-shaped concrete block into the seepage area of ​​the trough; S2. Pipe connection and sealing: The working ports of the exhaust grouting pipe and the air inlet overflow pipe pass through the waterproof membrane, and the interface between the working port and the membrane is sealed at the passing position; S3. Forming a sealed cavity: Inflate the inflatable sealing strip to press the waterproof membrane tightly against the outer wall of the structure, thereby forming a sealed cavity on the inner side of the inflatable sealing strip. S4. Cavity drying treatment: Close the valve of the air inlet overflow pipe, open the valve of the exhaust grouting pipe, and perform vacuum treatment on the sealed cavity through the exhaust grouting pipe to remove moisture; then, open the valve of the air inlet overflow pipe and introduce gas into the sealed cavity through the pipe to accelerate the drying of the inner wall of the sealed cavity. S5. Grouting and Judgment: Liquid waterproof material is injected into the sealed cavity through the exhaust grouting pipe until the liquid waterproof material is observed to overflow from the air inlet overflow pipe; S6. Completion of processing: After the liquid waterproof material reaches the bonding requirements, disconnect the connection between the working port and the waterproof membrane, allow the inflatable sealing strip to deflate and shrink, and then remove the L-shaped concrete block.

[0015] Furthermore, the sealing treatment of the interface between the working port and the roll material in step S2 is achieved by a connection structure provided at the working port.

[0016] By adopting this technical solution, a dedicated connection structure is set at the working port to achieve interface sealing, making the sealing operation standardized, simple and reliable. This avoids the uncertainty that may be caused by temporary sealing measures that rely on the experience of construction personnel, and improves the consistency of sealing quality and construction efficiency.

[0017] Furthermore, the gas introduced in step S4 is hot air.

[0018] By adopting this technical solution, the evaporation rate of residual moisture on the inner wall of the cavity can be significantly accelerated, the drying time required can be shortened, and thus the overall construction progress can be accelerated.

[0019] Furthermore, the liquid waterproofing material mentioned in step S5 is a non-curing asphalt waterproofing coating.

[0020] By adopting this technical solution, non-curing asphalt waterproof coating is used as a liquid waterproof material. It has creep characteristics that never cure, can penetrate well into the capillary pores of the base layer, and bond tightly with the membrane to form a skin-like waterproof layer. Even when the structure undergoes minor deformation, the material can self-heal and has good sealing performance. Its excellent adhesion properties ensure that the waterproof membrane can firmly adhere to the exterior wall when the working port connection is disconnected and the device is removed, forming a reliable composite waterproof layer.

[0021] Compared with the prior art, the present invention has the following advantages: A specialized system consisting of L-shaped concrete blocks, through-type exhaust and grouting pipes and air inlet overflow pipes, air-filled sealing strips, and waterproof membrane can quickly construct a sealed cavity isolated from the external humid environment at the bottom of a continuously seeping trench. Through active vacuuming and air-drying processes, the damp substrate that cannot dry naturally is transformed into a locally dried construction surface, thus creating the necessary conditions for a firm bond between the waterproof membrane and the structural exterior wall. This fundamentally solves the technical bottleneck of traditional methods that cannot be constructed or produce poor construction quality in wet environments. Attached Figure Description

[0022] Figure 1 This is a cross-sectional schematic diagram of the waterproof construction system for waterproofing basement exterior wall trenches with water flow according to the present invention; Figure 2 This is a schematic diagram of the operation status of the waterproof construction system for waterproofing basement exterior wall trenching with water present according to the present invention; Figure 3 This is a flowchart illustrating the construction method of the waterproofing system for basement exterior wall trenching with water present, as described in this invention.

[0023] Explanation of reference numerals in the attached drawings: 1. L-shaped concrete block; 2. Exhaust grouting pipe; 3. Air inlet overflow pipe; 4. Waterproof membrane; 5. Inflatable sealing strip; 6. Lifting unit. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Please see the appendix Figure 1 This invention provides a waterproofing construction system for basement exterior wall trenching with water present. The system mainly includes: an L-shaped concrete block 1, an exhaust grouting pipe 2, an air inlet overflow pipe 3, a waterproof membrane 4, an inflatable sealing strip 5, and a hoisting unit 6. The L-shaped concrete block 1 serves as the main structure, cast in an L-shape from concrete, with its size and shape adapted to the corner area between the bottom of the trough and the outer wall of the structure.

[0026] Both the exhaust grouting pipe 2 and the air inlet overflow pipe 3 are tubular structures that penetrate the L-shaped concrete block 1. The ports on the outside of the L-shaped concrete block 1 are outward-extending working ports; the ports on the inside are equipped with valves. The working port of the exhaust grouting pipe 2 is lower than the working port of the air inlet overflow pipe 3, and the working port of the air inlet overflow pipe 3 is located near the upper edge of the air-filled sealing strip 5.

[0027] During construction, the waterproof membrane 4 is applied to the outside of the L-shaped concrete block 1. The positions of the working ports of the waterproof membrane 4 corresponding to the venting grouting pipe 2 and the air inlet overflow pipe 3 need to be treated (such as pre-drilling holes or piercing on site) so that the working ports can pass through.

[0028] The inflatable sealing strip 5 is a double-layered inflatable sealing strip, which is set on the outer edge of the L-shaped concrete block 1. After inflation, it can tightly press the waterproof membrane 4 covering the L-shaped concrete block 1 onto the outer wall of the structure, thereby achieving a circumferential seal between the device and the outer wall of the structure.

[0029] The hoisting unit 6 is installed on the L-shaped concrete block 1 and is used for hoisting and relocation during construction.

[0030] The method for waterproofing construction using the above system in wet conditions mainly includes the following steps (in combination with...) Figure 2-3 It should be noted that the appendix Figure 2 The structure on the right side is the exterior wall of the structure. Step 1: First, build a temporary retaining wall around the fertilizer tank area affected by seepage, and continuously pump out the accumulated water in the area to minimize standing water and facilitate the placement of subsequent equipment.

[0031] Step 2: Temporarily fix the waterproof membrane 4 to the outside of the L-shaped concrete block 1, and then lift the device with the hoisting part 6 and gradually press it into the seepage area of ​​the trough from one side.

[0032] Step 3: After the device is in place, first use an external inflation device to inflate the inflatable sealing strip 5, thereby pressing the waterproof membrane 4 tightly against the outer wall of the structure, forming a sealed cavity inside the inflatable sealing strip 5, which is enclosed by the membrane and the outer wall. Then, close the valve of the air inlet overflow pipe 3, open the valve of the exhaust grouting pipe 2, connect and start the vacuum pump, and pump air through the exhaust grouting pipe 2 to remove moisture and air from the sealed cavity, while checking the sealing of the entire system.

[0033] Step 4: After the moisture in the sealed cavity has been basically removed, open the valve of the air inlet overflow pipe 3. At this time, the vacuum pump can continue to work to form an airflow circulation. In order to further accelerate the drying of the inner wall of the cavity, hot air can be introduced into the cavity through the air inlet overflow pipe 3.

[0034] Step 5: After confirming that the base layer is dry, keep the valve of the air inlet overflow pipe 3 open; pump non-curing asphalt waterproof coating and other liquid waterproof materials into the sealed cavity through the exhaust grouting pipe 2. Since the exhaust grouting pipe 2 is located at a low position, the grout fills from bottom to top. The operator continues to observe until the liquid waterproof material overflows from the air inlet overflow pipe 3 located at a high position. This indicates that the cavity has been completely filled with grout, and the grouting is stopped.

[0035] Step 6: After the liquid waterproofing material reaches the bonding requirements (e.g., non-curing coating cools or initially sets), deflate the air-filled sealing strip 5 to make it shrink, and release the sealing connection between the working ports of the exhaust grouting pipe 2 and the air inlet overflow pipe 3 and the waterproof membrane 4; finally, remove the L-shaped concrete block 1 through the hoisting unit 6.

[0036] At this point, the waterproof membrane 4 has been firmly bonded to the exterior wall of the structure by the liquid waterproof material, forming a reliable waterproof layer. Move the device to the next area to be constructed and repeat the above steps until the waterproofing construction of all affected areas is completed. The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A waterproofing construction system for a basement outer wall gutter water operation, characterized by, The application comprises: an L-shaped concrete block provided with at least one exhaust grouting pipe penetrating through the inside and outside of the block and at least one air inlet overflow pipe penetrating through the inside and outside of the block, the working end of the exhaust grouting pipe and the working end of the air inlet overflow pipe are located outside the L-shaped concrete block and extend outward, and the end located inside is provided with a valve; the working end of the exhaust grouting pipe is lower than the working end of the air inlet overflow pipe; the outer edge of the L-shaped concrete block is provided with a ring of inflatable sealing strip; and a waterproof roll used to cover the outside of the L-shaped concrete block during construction; wherein the working end of the air inlet overflow pipe is located adjacent to the upper edge of the inflatable sealing strip.

2. The waterproof construction system for basement exterior wall gutter zone water operation according to claim 1, characterized in that: The exhaust grouting pipe and the air inlet overflow pipe are configured such that their working ends can penetrate through the waterproof roll and form a detachable sealed connection with the waterproof roll at the penetration position.

3. The waterproofing construction system for basement exterior wall gutter zone water operation according to claim 1, characterized in that: The inflatable sealing strip is used to press the waterproof roll against the structure outer wall after inflation.

4. The waterproofing construction system for basement exterior wall gutter zone water operation according to claim 1, characterized in that: The L-shaped concrete block is provided with a lifting part.

5. A method of applying a waterproofing system as claimed in any one of claims 1 to 4, characterised in that, The application comprises the following steps: S1. System positioning: covering the waterproof roll on the outside of the L-shaped concrete block and lifting the L-shaped concrete block to the water-permeable area of the fat groove; S2. Pipe connection and sealing: making the working ends of the exhaust grouting pipe and the air inlet overflow pipe penetrate through the waterproof roll and sealing the interface between the working ends and the roll at the penetration position; S3. Forming a closed cavity: inflating the inflatable sealing strip to press the waterproof roll against the structure outer wall, thereby forming a closed cavity on the inside of the inflatable sealing strip; S4. Cavity drying treatment: closing the valve of the air inlet overflow pipe, opening the valve of the exhaust grouting pipe, and performing vacuum treatment on the closed cavity through the exhaust grouting pipe to remove moisture; then, opening the valve of the air inlet overflow pipe and introducing gas into the closed cavity through the pipe to accelerate the drying of the inner wall of the closed cavity; S5. Grouting and judgment: pouring liquid waterproof material into the closed cavity through the exhaust grouting pipe until the liquid waterproof material is observed to overflow from the air inlet overflow pipe; S6. Completion of treatment: after the liquid waterproof material meets the bonding requirements, disconnecting the working ends from the waterproof roll, deflating the inflatable sealing strip, and then removing the L-shaped concrete block.

6. The construction method according to claim 5, characterized in that: The interface between the working ends and the roll in step S2 is sealed by the connecting structure provided at the working ends.

7. The method of construction according to claim 5, wherein: The gas introduced in step S4 is hot air.

8. The method of construction according to claim 5, wherein: The liquid waterproof material in step S5 is non-solidified asphalt waterproof coating.

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