Brick moulding bed waterproof system for foundation pit side wall water seepage and construction method

Abstract

The invention relates to the technical field of building engineering construction, in particular to a brick forming die waterproof system for foundation pit side wall water seepage and a construction method.The brick forming die waterproof system for foundation pit side wall water seepage is connected with a plurality of slope protection piles and comprises a brick forming die, tie bars, a drainage layer, drainage blind ditches and waterproof cloth; the rotary moulding bed is vertically arranged along the slope protection pile; the drainage layer is arranged between the brick moulding bed and the slope protection piles; the drainage blind ditch is arranged at the bottom ends of the brick moulding bed and the drainage layer; one end of each tie bar is correspondingly connected with the brick moulding bed, and the other end of each tie bar correspondingly penetrates through the drainage layer and then is connected with the slope protection pile; the waterproof cloth comprises a vertical section and a horizontal section which are vertically connected; a vertical section is clamped between the brick moulding bed and the drainage layer, and the vertical section is arranged on the plurality of tie bars in a sleeving manner; and a horizontal section is clamped between the brick moulding bed and the drainage blind ditch. And through effective cooperation of one row and one block, the dryness of the free side of the brick moulding bed is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering construction, and particularly relates to a brick tire formwork waterproof system and construction method for seepage water on the side wall of a foundation pit. Background Art

[0002] As an outer formwork during the pouring of the foundation and side wall in the construction of a building basement, the brick tire formwork is widely used due to its simple structure and flexible size adjustment. When the groundwater level rises, the groundwater level of some excavated foundation pits may be higher than the base elevation, resulting in serious seepage water on the side wall of the foundation pit, which affects the construction of the brick tire formwork and the basement structure. Especially in projects with single-sided formwork support, the waterproof layer needs to be implemented at the position of the side wall of the foundation pit. Since the seepage water and bottom water accumulation on the side wall of the foundation pit make it difficult to keep the construction base layer of the waterproof layer dry, the bonding effect between the waterproof layer and the side wall of the foundation pit will be reduced, making it difficult to implement the waterproof layer in place. At this time, usually, methods such as lowering the groundwater level or injecting slurry between piles to stop water are used to ensure the dryness of the side wall of the foundation pit. However, the above methods increase the project cost and construction period, and the waterproof effect is poor. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a brick tire formwork waterproof system and construction method for seepage water on the side wall of a foundation pit, which solves the technical problem that when single-sided formwork support is used for the side wall of the foundation pit, it is difficult to implement the waterproof layer in place due to seepage water on the side wall of the foundation pit.

[0005] (2) Technical Solutions

[0006] In order to achieve the above object, the brick tire formwork waterproof system for seepage water on the side wall of the foundation pit of the present invention is connected to multiple slope protection piles. The brick tire formwork waterproof system includes a brick tire formwork, tie bars, a drainage layer, a drainage blind ditch, and a waterproof cloth;

[0007] The brick tire formwork and the slope protection piles are arranged vertically; the drainage layer is arranged between the brick tire formwork and the multiple slope protection piles; the drainage blind ditch is arranged at the bottom ends of the brick tire formwork and the drainage layer; one ends of multiple tie bars are correspondingly connected to the brick tire formwork, and the other ends correspondingly penetrate through the drainage layer and are connected to the slope protection piles;

[0008] The waterproof cloth includes a vertical section and a horizontal section connected perpendicularly; the vertical section is clamped between the brick tire formwork and the drainage layer, and the vertical section is sleeved on multiple tie bars; the horizontal section is clamped between the brick tire formwork and the drainage blind ditch.

[0009] Optionally, both the vertical section and the horizontal section include multiple waterproof units and multiple connectors;

[0010] One end of the connecting piece is connected to the edge of the waterproof unit, and the other end is provided with meshing teeth; adjacent waterproof units are clamped together by a pair of meshing teeth arranged facing each other.

[0011] Optionally, the connecting piece is a Z-shaped strip; the end of the edge of the waterproof unit is provided with sealing teeth;

[0012] The first top surface of the Z-shaped strip is welded to the top surface of the edge or the bottom surface of the edge of the waterproof unit; the second top surface of the Z-shaped strip is provided with the meshing teeth, and a sealing groove is enclosed between the meshing teeth and the sealing teeth; the sealing groove can be engaged with the meshing teeth arranged opposite to each other.

[0013] Optionally, a plurality of sealing rings are provided on the waterproof cloth;

[0014] The sealing ring is sleeved on the tie bar; the inner diameter of the sealing ring is smaller than the outer diameter of the tie bar.

[0015] Optionally, the waterproof cloth is provided with a plurality of through holes;

[0016] The outer wall of the sealing ring is welded to the through hole.

[0017] Optionally, the free end of the horizontal section extends out of the side of the drainage blind ditch away from the slope protection pile, and a back pressure ridge is arranged on the free end of the horizontal section.

[0018] Optionally, the drainage layer and the drainage blind ditch are granular gravel.

[0019] Optionally, the bottom surface of the drainage blind ditch is inclined in the longitudinal direction.

[0020] Optionally, the tie bars include vertically connected longitudinal tie bars and transverse tie bars;

[0021] The longitudinal tie bars are pre-buried in the brick formwork; one end of the transverse tie bars is buried in the brick formwork, and the other end passes through the vertical section and the drainage layer in sequence and then is connected to the slope protection pile.

[0022] Furthermore, the present invention also provides a construction method of a brick formwork waterproof system for foundation pit side wall seepage, the construction method of the brick formwork waterproof system for foundation pit side wall seepage is implemented based on the brick formwork waterproof system for foundation pit side wall seepage as described above, and the construction method comprises:

[0023] After the foundation pit is excavated to the base, a trench is excavated and filled with crushed stones to form the drainage blind ditch;

[0024] The horizontal section is laid on the base and the blind drainage ditch; the vertical section is against a plurality of the slope protection piles;

[0025] The brick formwork is constructed above the drainage blind ditch at a preset distance from the retaining slope pile, and the bottom surface of the brick formwork is connected to the top surface of the horizontal section; after the brick formwork is constructed multiple times to the corresponding preset height, tie bars are buried in the brick formwork, and the tie bars are correspondingly connected to the vertical section and the retaining slope pile; the construction of the brick formwork is stopped after it is constructed to the required height for construction;

[0026] A plain concrete cushion is poured on the foundation base and the horizontal section, and the side of the plain concrete cushion is connected to the free surface of the brick formwork; at the same time, crushed stones are filled into the gap between the brick formwork and the retaining slope pile to form the drainage layer.

[0027] (III) Beneficial effects

[0028] The beneficial effects of the present invention are as follows:

[0029] The drainage layer and the drainage blind ditch are used to drain the seepage water on the side wall of the foundation pit. The seepage water flows out from the side wall of the foundation pit, flows along the side wall of the foundation pit and the retaining slope pile to the drainage layer, and then converges in the drainage blind ditch and is discharged through the port of the drainage blind ditch, so that the seepage water on the side wall of the foundation pit can be discharged in time to avoid water accumulation at the bottom of the foundation pit. The waterproof cloth blocks the water flow in the drainage layer and the drainage blind ditch, ensures the dryness on the free side of the waterproof cloth, improves the waterproof performance of the brick formwork waterproof system, and facilitates the construction operations of the brick formwork and the basement.

[0030] Compared with the way of directly bonding the waterproof cloth to the side wall of the foundation pit, in the present invention, the waterproof cloth is fixed on the brick formwork through multiple tie bars, and the sleeved connection method has higher connection strength, and the influence of seepage water on the connection strength of the waterproof cloth is smaller, greatly reducing the implementation difficulty of the waterproof layer. Moreover, the side wall of the foundation pit and the brick formwork are separated by the drainage layer, thereby reducing the amount of water infiltrating to the waterproof cloth, and this small amount of water is not easy to seep out from the free side of the waterproof cloth. Therefore, the dryness on the free side of the brick formwork is effectively improved.

[0031] A vertical section is clamped between the brick formwork and the drainage layer, and a horizontal section is clamped between the brick formwork and the drainage blind ditch, so that the waterproof cloth is arranged in an L shape on the top surface of the foundation base and the outside of the brick formwork to be able to block the water flow in the drainage layer and the drainage blind ditch from entering the free side of the waterproof cloth. Through the effective cooperation of "one row and one block", that is, the effective cooperation of "draining water" and "blocking water", the dryness on the free side of the waterproof cloth is greatly improved, and the construction cost is low and the construction period is short. Description of the drawings

[0032] Figure 1 It is a schematic structural diagram of the brick formwork waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0033] Figure 2 It is a top view of the brick formwork waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0034] Figure 3 Structural schematic diagram of the waterproof cloth of the present invention;

[0035] Figure 4 Structural schematic diagram of the connecting piece of the present invention;

[0036] Figure 5 Connection schematic diagram of the waterproof unit and the sealing ring of the present invention;

[0037] Figure 6 Cross-sectional view of the side of the sealing ring of the present invention;

[0038] Figure 7 Connection schematic diagram of the sealing ring and the horizontal tie bar of the present invention;

[0039] Figure 8 Structural schematic diagram of the tie bar of the present invention;

[0040] Figure 9 Structural schematic diagram of the first implementation process of the brick tire mold waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0041] Figure 10 Structural schematic diagram of the second implementation process of the brick tire mold waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0042] Figure 11 Structural schematic diagram of the third implementation process of the brick tire mold waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0043] Figure 12 Structural schematic diagram of the fourth implementation process of the brick tire mold waterproof system for seepage water on the side wall of the foundation pit of the present invention;

[0044] Figure 13 Structural schematic diagram of the fifth implementation process of the brick tire mold waterproof system for seepage water on the side wall of the foundation pit of the present invention.

[0045]

Explanation of reference numerals

[0046] 1: Brick tire mold;

[0047] 2: Tie bar; 21: Longitudinal tie bar; 22: Horizontal tie bar;

[0048] 3: Drainage layer;

[0049] 4: Drainage blind ditch;

[0050] 5: Waterproof cloth; 51: Sealing ring; 52: Connecting piece; 521: First top surface; 522: Second top surface; 523: Meshing teeth; 53: Vertical section; 54: Horizontal section; 55: Waterproof unit; 551: Sealing teeth; 56: Sealing groove;

[0051] 6: Counterweight sill;

[0052] 7: Retaining piles. Detailed implementation manners

[0053] To better explain the present invention for easier understanding, the present invention will be described in detail below in conjunction with the accompanying drawings through specific implementation manners.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; "connection" can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] See Figure 1 and Figure 2 , the present invention provides a brick formwork waterproofing system for seepage water on the side wall of a foundation pit. The brick formwork waterproofing system for seepage water on the side wall of the foundation pit is connected to multiple retaining piles 7. The brick formwork waterproofing system includes a brick formwork 1, tie bars 2, a drainage layer 3, a drainage blind ditch 4, and a waterproof cloth 5; the brick formwork 1 is arranged vertically along the retaining piles 7, and the vertical direction is perpendicular to the base; the drainage layer 3 is arranged between the brick formwork 1 and the multiple retaining piles 7; the drainage blind ditch 4 is arranged at the bottom ends of the brick formwork 1 and the drainage layer 3; one ends of multiple tie bars 2 are correspondingly connected to the brick formwork 1, and the other ends correspondingly penetrate through the drainage layer 3 and are connected to the retaining piles 7; the waterproof cloth 5 includes a vertical section 53 and a horizontal section 54 that are perpendicularly connected; the vertical section 53 is clamped between the brick formwork 1 and the drainage layer 3, and the vertical section 53 is sleeved on multiple tie bars 2; the horizontal section 54 is clamped between the brick formwork 1 and the drainage blind ditch 4. Among them, the quantity of the retaining piles 7, tie bars 2, and the size of the waterproof cloth 5 are reasonably set according to engineering requirements.

[0058] The brick formwork 1 and the slope protection pile 7 are connected by tie bars 2, which enhances the overall structural strength of the waterproof system of the brick formwork and can effectively prevent the brick formwork 1 from overturning due to excessive seepage water pressure in the drainage layer 3. Setting the tie bars 2 to tie the brick formwork 1 and the slope protection pile 7 to each other improves the lateral load-bearing capacity of the brick formwork 1.

[0059] The drainage layer 3 and the drainage blind ditch 4 are used to drain the seepage water on the side wall of the foundation pit. The seepage water flows out along the side wall of the foundation pit, flows along the side wall of the foundation pit and the slope protection pile 7 to the drainage layer 3, then converges in the drainage blind ditch 4 and is discharged through the port of the drainage blind ditch 4, so that the seepage water on the side wall of the foundation pit can be discharged in time to avoid water accumulation at the bottom of the foundation pit. The waterproof cloth 5 separates the water flow in the drainage layer 3 and the drainage blind ditch 4, ensures the dryness of the side (the side facing the basement) of the waterproof cloth 5, improves the waterproof performance of the waterproof system of the brick formwork, and facilitates the construction operations of the brick formwork 1 and the basement.

[0060] Compared with the way of directly bonding the waterproof cloth 5 to the side wall of the foundation pit, in the present invention, the waterproof cloth 5 is fixed on the brick formwork 1 through multiple tie bars 2. The sleeved connection method has a higher connection strength, and the influence of seepage water on the connection strength of the waterproof cloth 5 is smaller, greatly reducing the implementation difficulty of the waterproof layer. Moreover, the side wall of the foundation pit and the brick formwork 1 are separated by the drainage layer 3, thereby reducing the amount of water seeping to the waterproof cloth 5. This small amount of water is not easy to seep out from the side of the waterproof cloth 5 facing the air, so the dryness of the side of the waterproof cloth 5 facing the air is effectively improved, that is, the dryness of the side of the brick formwork 1 facing the air is improved, and the waterproof inner pasting can be implemented on the side of the brick formwork 1 facing the air, which is convenient for the subsequent construction of the basement.

[0061] Specifically, the vertical section 53 is sleeved on multiple tie bars 2. On the one hand, it simplifies the installation method of the vertical section 53, reduces the project cost and construction period. On the other hand, the vertical section 53 is arranged close to the brick formwork 1 instead of the side wall of the foundation pit. Most of the water flow directly drains into the drainage blind ditch 4 through the drainage layer 3, effectively reducing the water flow rate on the side of the vertical section 53 facing the drainage layer 3 and reducing the risk of water seepage at the sleeved position of the waterproof cloth 5, further improving the waterproof effect of the waterproof system of the brick formwork. The horizontal section 54 vertically connected to the vertical section 53 can be directly laid on the base. On the one hand, it can separate the water flow in the drainage blind ditch 4, and on the other hand, it simplifies the installation method of the horizontal section 54. The length dimension of the horizontal section 54 is set according to the method requirements to ensure that the water flow will not penetrate into the cushion layer.

[0062] A vertical section 53 is clamped between the brick formwork 1 and the drainage layer 3, and a horizontal section 54 is clamped between the brick formwork 1 and the drainage blind ditch 4, so that the waterproof cloth 5 is arranged in an L shape on the top surface of the foundation and the outside of the brick formwork 1, so as to prevent the water flow in the drainage layer 3 and the drainage blind ditch 4 from entering the air side of the waterproof cloth 5. Through the effective cooperation of "one row and one block", that is, the effective cooperation of "draining water" and "blocking water", the dryness of the air side of the waterproof cloth 5 is greatly improved, and the construction cost is low and the construction period is short.

[0063] As Figure 3 shown, both the vertical section 53 and the horizontal section 54 include a plurality of waterproof units 55 and a plurality of connecting members 52; one end of the connecting member 52 is connected to the edge of the waterproof unit 55, and the other end is provided with engaging teeth 523; adjacent waterproof units 55 are clamped by a pair of oppositely arranged engaging teeth 523. Specifically, the waterproof unit 55 is made of waterproof material, and the waterproof units 55 are connected by the connecting members 52 to be assembled into the waterproof cloth 5. The engaging teeth 523 are a plurality of strip-shaped teeth arranged in an array, and the outer diameter of the free end of the strip-shaped teeth is larger than the outer diameter of the connecting end. By reasonably setting the spacing of the plurality of strip-shaped teeth arranged in an array, adjacent strip-shaped teeth can be elastically engaged with an opposite strip-shaped tooth. That is, a pair of positive and negative engaging teeth 523 are engaged with each other for connection and sealing. The engaging teeth 523 are plastic parts or rubber parts and have a certain elasticity, which can achieve a good waterproof effect. When adjacent waterproof units 55 are connected, the engaging teeth 523 of one waterproof unit 55 face upward, and the engaging teeth 523 of the other waterproof unit 55 face downward. By moving a pair of engaging teeth 523 of adjacent waterproof units 55 toward each other vertically, the clamping of adjacent waterproof units 55 can be completed, and the layout size of the waterproof cloth 5 can be quickly adjusted. Moreover, the waterproof cloth 5 can be assembled to improve the flexibility during construction. For example, after the brick formwork 1 is built to a preset height, the waterproof cloth 5 with corresponding dimensions can be installed on the tie bars 2 of the brick formwork 1, avoiding the situation that the waterproof cloth 5 topples on the top of the brick formwork 1 due to excessive size and affecting the subsequent construction of the brick formwork 1.

[0064] See Figure 4, the connecting member 52 is a Z-shaped strip; the end of the edge of the waterproof unit 55 is provided with a sealing tooth 551; the second top surface 522 of the Z-shaped strip is hot-melt welded to the top surface of the edge or the bottom surface of the edge of the waterproof unit 55; the first top surface 521 of the Z-shaped strip is provided with an engaging tooth 523, and the engaging tooth 523 and the sealing tooth 551 form a sealing groove 56; the sealing groove 56 can be engaged with the engaging teeth 523 arranged opposite to each other. Specifically, the cross-section of the sealing tooth 551 is trapezoidal, and the top corner of the Z-shaped strip is arranged below the sealing tooth 551, and the combination forms a card strip structure similar to the engaging tooth 523, but the volume is only half of the card strip. Of course, the sealing tooth 551 can also be directly arranged on the Z-shaped strip, as long as the sealing tooth 551, the Z-shaped strip and the card strip can form a sealing groove 56. By adding a pair of facing sealing teeth 551 , the two outermost gaps of a pair of facing connecting members 52 are sealed, thereby blocking or reducing the water flow entering the meshing teeth 523 , thereby enhancing the waterproof effect of the waterproof cloth 5 .

[0065] like Figures 5 to 7 As shown, a plurality of sealing rings 51 are provided on the waterproof cloth 5; the sealing rings 51 are sleeved on the tie ribs 2; the inner diameter of the sealing rings 51 is smaller than the outer diameter of the tie ribs 2. Optionally, the sealing rings 51 are rubber parts. On the one hand, the tie ribs 2 can be directly inserted into the sealing rings 51, which is easy to operate and improves the convenience of connecting the waterproof cloth 5 with the brick mold 1. On the other hand, the inner diameter of the sealing ring 51 is smaller than the outer diameter of the tie ribs 2, which is equivalent to a clearance fit, which effectively ensures the sealing performance of the sealing ring 51 after the two are connected.

[0066] Furthermore, a plurality of through holes are formed on the waterproof cloth 5; and the outer wall of the sealing ring 51 is welded to the through holes. In this embodiment, the outer wall of the sealing ring 51 is welded to the through holes by hot-melt welding. The advantage of hot-melt welding is that the outer wall of the sealing ring 51 and the waterproof cloth 5 can be adhered to each other as a whole, and water flow is difficult to penetrate from the weld, thereby improving the reliability of the sealing after the waterproof cloth 5 is connected to the tie bar 2.

[0067] In addition, the free end of the horizontal section 54 extends out of the side of the drainage blind ditch 4 away from the slope protection pile 7, and a counter-pressure ridge 6 is provided on the free end of the horizontal section 54. Specifically, the horizontal section 54 is laid on the base in a certain size according to actual needs. When the laying size is large, the horizontal section 54 may be displaced during the construction process, and the counter-pressure ridge 6 can compact the horizontal section 54 on the base, which is convenient for the subsequent construction of the cushion layer and the waterproof layer. The counter-pressure ridge 6 is a pit opened in the longitudinal direction on the base. One end of the horizontal section 54 fits with the counter-pressure ridge 6, and the other end of the horizontal section 54 is fixed by the brick mold 1. The counter-pressure ridge 6 is a continuous groove excavated in the base, and its extension length is generally not less than 1.0m, and the groove depth is not less than 10cm. The anti-seepage cloth 5 is laid along the bottom of the groove, and then the cushion layer (concrete) is backfilled.

[0068] Secondly, the drainage layer 3 and the drainage blind ditch 4 are granular gravel. On the one hand, the granular gravel is easy to construct. It can be quickly constructed by pouring the granular gravel into the space inside the drainage layer 3 and the drainage blind ditch 4, which can improve the structural strength requirements of the brick formwork waterproofing system. On the other hand, water can flow inside the granular gravel, so that the seepage water on the side wall of the foundation pit can be directly discharged into the drainage layer 3, and flow into the drainage blind ditch 4 through the drainage layer 3. Drainage pipes can be pre-buried in the drainage blind ditch 4, and the water can be discharged to a designated location through the drainage pipes, so that the seepage water on the side wall of the foundation pit can be discharged in time, keeping the side of the foundation pit facing the air dry, and facilitating the subsequent construction of brick formwork, cushion layer and basement.

[0069] Optionally, the bottom surface of the drainage blind ditch 4 is inclined in the longitudinal direction. Figure 2 The two ends of the drainage blind ditch 4 are arranged at a certain height difference, which improves the fluidity of the water flow inside the drainage blind ditch 4, and can be automatically discharged through the lower end of the drainage blind ditch 4, without pre-buried drainage pipes, simplifying the construction process.

[0070] See also Figure 8 The tie bars 2 include vertically connected longitudinal tie bars 21 and transverse tie bars 22; the longitudinal tie bars 21 are pre-buried in the brick formwork 1; one end of the transverse tie bars 22 is buried in the brick formwork 1, and the other end passes through the vertical section 53 and the drainage layer 3 in sequence and is connected to the slope protection pile 7. Specifically, the vertical section 53 is sleeved on a plurality of transverse tie bars 22. After being sleeved in place, the vertical section 53 can abut against the side of the brick formwork 1 facing the side wall of the foundation pit, and is compacted on the brick formwork 1 by the drainage layer 3. Compared with the method of directly bonding the waterproof cloth to the side wall of the foundation pit, the connection method of the waterproof cloth 5 of the present invention is more stable, and the waterproof cloth 5 can play a stable waterproof effect, ensuring the dryness of the air side of the waterproof cloth 5.

[0071] In addition, the present invention also provides a construction method of a brick formwork waterproof system for foundation pit side wall seepage, the construction method of the brick formwork waterproof system for foundation pit side wall seepage is based on the above-mentioned brick formwork waterproof system for foundation pit side wall seepage, and the construction method comprises:

[0072] See also Figure 9 After the foundation pit is excavated to the base, a trench is excavated and filled with crushed stones to form a drainage blind ditch 4; the top surface of the drainage blind ditch 4 must be flush with the plane where the base is located;

[0073] See also Figure 10 , the horizontal section 54 is laid on the base and the blind drainage ditch 4, and a counterpressure ridge 6 is excavated on the base. The horizontal section 54 needs to fit with the counterpressure ridge 6; the vertical section 53 is against a plurality of slope protection piles 7;

[0074] The slope protection piles 7 generally partially protrude from the side of the foundation pit, so the vertical section 53 abutting against the slope protection piles 7 will not cause water seepage and drainage of the side wall of the foundation pit; of course, the waterproof units 55 can also be spliced one by one after the brick formwork 1 is built to a preset height; in this process, the water seepage from the side wall of the foundation pit directly flows through the side wall of the foundation pit to the drainage blind ditch 4;

[0075] See also Figure 11 and Figure 12 , a brick formwork 1 is built above the blind drainage ditch 4 and at a preset distance from the slope protection pile 7, the bottom surface of the brick formwork 1 is connected to the top surface of the horizontal section 54, and the brick formwork 1 can be directly compacted on the horizontal section 54; after the brick formwork 1 is built multiple times to the corresponding preset height, tie bars 2 are buried in the brick formwork 1, and the buried height of the tie bars 2 should be compatible with the pre-installed height of the sealing ring 51, and the tie bars 2 are connected to the vertical section 53 and the slope protection pile 7 accordingly; after the brick formwork 1 is built to the required height for construction, the masonry is stopped;

[0076] The corner position of the vertical section 53 and the horizontal section 54 is the corner position of the brick mold 1, and the vertical section 53 and the horizontal section 54 are connected as a whole; when arranging the waterproof cloth 5, it is necessary to stagger the connecting piece 52 with the corner position to avoid the situation where the connecting piece 52 fails due to corner extrusion and causes water seepage;

[0077] See also Figure 13 A plain concrete cushion is poured on the base and the horizontal section 54, the side of the plain concrete cushion is connected to the free surface of the brick formwork 1, and the counter pressure ridge 6 is automatically filled with the plain concrete cushion; at the same time, gravel is filled into the gap between the brick formwork 1 and the slope protection pile 7 to form a drainage layer 3, and the brick formwork waterproof system is now completed;

[0078] Subsequently, a waterproof layer and a basement are constructed on the cushion layer according to requirements. The basement foundation is set on the cushion layer, and the basement side walls are set vertically and connected to the free surface of the brick formwork 1.

[0079] Water seepage from the side wall of the foundation pit is drained to the preset drainage outlet through the drainage layer 3 and the drainage blind ditch 4. Due to the presence of the waterproof cloth 5, the air-facing side of the brick formwork 1 can be completely dry, which does not affect the construction of the waterproof layer and the basement, saves project costs, and shortens the project period.

[0080] It should be understood that the above description of the specific embodiments of the present invention is only for illustrating the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention is not limited to the above specific implementation methods. Any changes or modifications made within the scope of the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A brick formwork waterproofing system for seepage of the side wall of a foundation pit, the brick formwork waterproofing system is connected to multiple slope protection piles (7), and is characterized in that, The brick formwork waterproofing system comprises a brick formwork (1), tie bars (2), a drainage layer (3), a drainage blind ditch (4) and a waterproof cloth (5); The brick formwork (1) is arranged vertically along the slope protection piles (7); the drainage layer (3) is arranged between the brick formwork (1) and the plurality of slope protection piles (7); the drainage blind ditch (4) is arranged at the bottom of the brick formwork (1) and the drainage layer (3); one end of the plurality of tie bars (2) is connected to the brick formwork (1) and the other end thereof is connected to the slope protection piles (7) after passing through the drainage layer (3); The waterproof cloth (5) comprises a vertical section (53) and a horizontal section (54) which are vertically connected; the vertical section (53) is clamped between the brick formwork (1) and the drainage layer (3), and the vertical section (53) is sleeved on a plurality of tie bars (2); the horizontal section (54) is clamped between the brick formwork (1) and the drainage blind ditch (4).

2. The brick tire mold waterproofing system for seepage water on the side wall of the foundation pit according to claim 1, characterized in that The vertical section (53) and the horizontal section (54) each include a plurality of waterproof units (55) and a plurality of connecting members (52); One end of the connecting piece (52) is connected to the edge of the waterproof unit (55), and the other end is provided with meshing teeth (523); adjacent waterproof units (55) are clamped together by a pair of meshing teeth (523) arranged opposite to each other.

3. The brick formwork waterproofing system for seepage water on the side wall of the foundation pit according to claim 2, characterized in that, The connecting member (52) is a Z-shaped strip; the end of the edge of the waterproof unit (55) is provided with sealing teeth (551); The second top surface (522) of the Z-shaped strip is welded to the top surface of the edge or the bottom surface of the edge of the waterproof unit (55); the meshing teeth (523) are arranged on the first top surface (521) of the Z-shaped strip, and a sealing groove (56) is enclosed between the meshing teeth (523) and the sealing teeth (551); the sealing groove (56) can be engaged with the meshing teeth (523) arranged opposite to each other.

4. The brick tire mold waterproofing system for seepage water on the side wall of the foundation pit according to any one of claims 1-3, characterized in that, The waterproof cloth (5) is provided with a plurality of sealing rings (51); The sealing ring (51) is sleeved on the tie bar (2); the inner diameter of the sealing ring (51) is smaller than the outer diameter of the tie bar (2).

5. The brick formwork waterproofing system for seepage water on the side wall of the foundation pit according to claim 4, characterized in that, The waterproof cloth (5) is provided with a plurality of through holes; The outer wall of the sealing ring (51) is welded to the through hole.

6. The brick tire mold waterproof system for seepage of the foundation pit side wall according to any one of claims 1-3, characterized in that, The free end of the horizontal section (54) extends out of the drainage blind ditch (4) away from the slope protection pile (7), and a back pressure ridge (6) is arranged on the free end of the horizontal section (54).

7. The brick tire mold waterproofing system for seepage water on the side wall of the foundation pit according to any one of claims 1-3, characterized in that, The drainage layer (3) and the drainage blind ditch (4) are granular gravel.

8. The brick tire mold waterproofing system for seepage of the foundation pit side wall according to any one of claims 1-3, characterized in that The bottom surface of the drainage blind ditch (4) is arranged to be inclined in the longitudinal direction.

9. The brick tire mold waterproof system for seepage water on the side wall of the foundation pit according to any one of claims 1-3, characterized in that, The tie bars (2) include vertically connected longitudinal tie bars (21) and transverse tie bars (22); The longitudinal tie bar (21) is pre-buried in the brick formwork (1); one end of the transverse tie bar (22) is buried in the brick formwork (1), and the other end passes through the vertical section (53) and the drainage layer (3) in sequence and is connected to the slope protection pile (7).

10. A construction method of a brick formwork waterproofing system for seepage water on the side wall of a foundation pit, the construction method of the brick formwork waterproofing system for seepage water on the side wall of the foundation pit is implemented based on the brick formwork waterproofing system for seepage water on the side wall of the foundation pit described in any one of claims 1-9, characterized in that, The construction method comprises: After the foundation pit is excavated to the base, a trench is excavated and filled with crushed stones to form the drainage blind ditch (4); Lay the horizontal section (54) on the base and the drainage blind ditch (4); the vertical section (53) abuts against a plurality of the slope protection piles (7); Build the brick formwork (1) above the drainage blind ditch (4) and at a preset distance from the slope protection piles (7). The bottom surface of the brick formwork (1) is connected to the top surface of the horizontal section (54). After the brick formwork (1) is built to the corresponding preset height multiple times, the tie bars (2) are buried in the brick formwork (1), and the tie bars (2) are correspondingly connected to the vertical section (53) and the slope protection piles (7); stop building the brick formwork (1) after it is built to the required construction height; Pour a plain concrete cushion on the base and the horizontal section (54), and the side of the plain concrete cushion is connected to the free face of the brick formwork (1); at the same time, fill the gap between the brick formwork (1) and the slope protection piles (7) with gravel to form the drainage layer (3).

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