River-facing foundation pit communicating opening waterproof structure

Abstract

The utility model discloses a river-facing foundation pit communication opening waterproof structure, and relates to the technical field of foundation pit waterproofness, the waterproof structure comprises a structure self-waterproof system, an embedded steel plate, a water stop steel plate, an expansion water stop strip and an outer layer protection structure, the structure self-waterproof system comprises a main body basement outer wall, a subway side wall body and a communication opening side wall, the main body basement outer wall is connected with the subway side wall body through the communicating port side wall, and a communicating port is formed between the main body basement outer wall and the subway side wall body; the pre-embedded steel plate is pre-embedded in the main body basement outer wall; the water stop steel plate is connected to the embedded steel plate and located in a communicating opening plate behind the surface of the communicating opening. The expansion water-stop strip is arranged in a shear-resistant groove of the main body basement outer wall; the outer layer protection structure comprises a rubber water stop belt arranged in a deformation joint node of the communication opening and a flexible full-wrapping waterproof layer laid on the communication opening. According to the waterproof structure, the waterproof performance of the underground connecting channel is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep foundation pit waterproof structure technical field especially relates to a riverfront foundation pit connecting mouth waterproof structure. BACKGROUND

[0002] In the implementation process of riverfront deep foundation pit engineering project, planning and building the connecting mouth required by future underground rail transit is a crucial link. These connecting mouths are often in complex geological conditions with high underground water level and strong water pressure, and their waterproof design and construction become a major technical challenge in the project.

[0003] Traditional waterproof materials and technical means often face the following technical problems when dealing with the waterproof design of such connecting mouths:

[0004] Firstly, at the junction between the connecting mouth and the main underground structure, it is particularly difficult to waterproof the interface because the connecting channel usually needs to be constructed after the waterproof structure is implemented. In addition, if the waterproof measures are improper or fail, water will penetrate, not only affecting the normal function of the connecting mouth, but also possibly posing a risk to the structural stability of the entire deep foundation pit and underground rail transit. INVENTION CONTENTS

[0005] Therefore, the purpose of the utility model is to solve the problems and deficiencies of the prior art by providing a riverfront foundation pit connecting mouth waterproof structure to address the issue of existing waterproof measures affecting the normal function of the connecting mouth and possibly posing a risk to the structural stability of the entire deep foundation pit and underground transit.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] The utility model provides a riverfront foundation pit connecting mouth waterproof structure, which comprises:

[0008] A self-waterproof structure, including a main basement exterior wall formed by pouring reinforced concrete, a subway side wall and a connecting mouth side wall, the main basement exterior wall is connected to the subway side wall through the connecting mouth side wall, and a connecting mouth is formed between the main basement exterior wall and the subway side wall inside the connecting mouth side wall;

[0009] A pre-embedded steel plate pre-embedded in the main basement exterior wall;

[0010] A water stop steel plate connected to the pre-embedded steel plate and located in the connecting mouth plate behind the connecting mouth surface;

[0011] An expansion water stop strip arranged in the shear groove of the main basement exterior wall;

[0012] An outer protective structure comprises a rubber waterstop arranged in the deformation joint node of the communication opening, and the rubber waterstop is adapted to fill the deformation joint node of the communication opening.

[0013] Further, the outer protective structure further comprises a flexible full-cover waterproof layer arranged on the communication opening.

[0014] Further, the first deformation joint is arranged between the side wall of the communication opening and the side wall of the subway.

[0015] Further, the rubber waterstop is arranged in the first deformation joint between the side wall of the communication opening and the side wall of the subway.

[0016] Further, the width of the embedded steel plate is not less than 100 mm, and the section size of the shear groove is 100*100 mm.

[0017] Further, the back communication opening plate is provided with a plate steel bar, and the plate steel bar is connected with the L-shaped reserved steel bar on the main body underground outer wall.

[0018] Further, the back communication opening plate comprises a communication opening top plate arranged on the top wall of the communication opening, and the top steel bars are arranged around the communication opening top plate and the main body underground outer wall, and the gaps between the top steel bars are provided with the rubber waterstop.

[0019] Further, the back communication opening plate further comprises a communication opening bottom plate arranged on the bottom wall of the communication opening, and the bottom steel bars are arranged around the communication opening bottom plate and the main body underground outer wall, and the gaps between the bottom steel bars are provided with the rubber waterstop.

[0020] Further, the lower surface of the communication opening bottom plate is further provided with a concrete cushion layer, and the thickness of the concrete cushion layer is 99-101 mm.

[0021] Further, the width of the first deformation joint is 99-101 mm.

[0022] The utility model has significant advantages and beneficial effects compared with the prior art, and the specific aspects are as follows:

[0023] 1. The utility model discloses a river side foundation pit communication port waterproof structure is connected by the main body basement outer wall, subway side wall and the connection of communication port side wall, constructs a relatively regular and stable communication space from the whole, and its integrated structure form is helpful to disperse water pressure, avoids the leakage risk caused by partial concentrated stress, and relies on the compactness of self structure to realize the preliminary waterproof barrier effect first, places the embedded steel sheet in the specified position of main body basement outer wall in advance in the construction stage, and when the water stop steel sheet is connected on it subsequently, both can form a stable connecting base. This embedded mode ensures the reliability of water stop steel sheet installation, makes the water stop structure can be accurately set in the key position that needs waterproof, avoids the leakage hidden danger caused by later unstable installation, strengthens the overall stability of the waterproof structure of communication port area, and the water stop steel sheet utilizes the material property and shape design of itself, forms a barrier, when water flow tries to penetrate through the gap of communication port plate etc. part, water stop steel sheet can effectively block water from continuing to penetrate, guide water flow along the predetermined path and discharge or stagnate, thereby greatly enhance the waterproof effect of communication port surface, avoid the damage caused by water into the foundation pit inside, expansion water stop strip is in the shear groove this specific position, and when meeting water, will swell, fill the gap of shear groove and surrounding structure, form the tight seal. This characteristic makes it can actively cope with the generation of tiny cracks or gaps possibly caused by structure deformation, vibration etc. factor, seals the potential water seepage channel in time. It not only can prevent water penetration under normal circumstances, but also can still maintain good waterproof performance when a certain degree of displacement or deformation occurs, further improves the reliability and durability of the whole structure waterproof, and the rubber water stop belt can adapt to the expansion, dislocation etc. deformation condition of deformation joint with its flexibility and elasticity. In the deformation process, the rubber water stop belt can effectively block water from entering the foundation pit inside from the deformation joint, ensure that even when the structure changes a certain, still can maintain good waterproof effect, protect the foundation pit from water intrusion. The flexible full waterproof layer is wrapped to the whole communication port, it can effectively isolate the direct contact of external water and communication port structure, whether it is river water, groundwater or other sources of water, is blocked outside, avoids water penetration into the foundation pit, can also adapt to the tiny deformation of the structure around the communication port, plays the all -round protection effect, further improves the comprehensive performance of the whole waterproof structure. Therefore, the structure self -waterproof system as the basis of the overall waterproof capacity reduces the possibility of water penetration, then the embedded steel sheet and water stop steel sheet strengthen the local waterproof capacity aiming at the weak point of communication port, and expansion water stop strip is the further supplement to the weak link in the structure, prevents leakage through dynamic sealing, and finally the outer protective structure as the last line of defense ensures the waterproof performance of the whole communication port, and the four parts cooperate with each other, form a multi -level, all -round waterproof system. DRAWINGS

[0024] Figure 1The plane positioning structure schematic view of the waterproof structure of the Linjiang foundation pit communication port in the embodiment of the utility model is shown in the figure.

[0025] Figure 2 For Figure 1 The local enlarged structure schematic view of the position I in the figure.

[0026] Figure 3 For Figure 1 The cross section structure schematic view of the position A-A in the figure.

[0027] Figure 4 The plane arrangement schematic view of the communication port rear joint structure in the embodiment of the utility model is shown in the figure.

[0028] Figure 5 For Figure 4 The local enlarged structure schematic view of the position II in the figure.

[0029] Figure 6 The communication port top plate deformation joint schematic view in the embodiment of the utility model is shown in the figure.

[0030] Figure 7 For Figure 6 The local enlarged structure schematic view of the position III in the figure.

[0031] Figure 8 The communication port bottom plate deformation joint schematic view in the embodiment of the utility model is shown in the figure.

[0032] Figure 9 For Figure 8 The local enlarged structure schematic view of the position IV in the figure.

[0033] Mark explanation:

[0034] 1-structure self waterproof system;11-main body basement outer wall;111-shear groove;112-enclosure wall chiseling area;12-metro side wall body;13-communication port side wall;14-communication port;141-rear communication port plate;1411-communication port top plate;1412-communication port bottom plate;15-plate steel bar;16-top steel bar;17-bottom steel bar;18-concrete cushion;

[0035] 2-embedded steel plate;3-water stop steel plate;4-expansion water stop strip;

[0036] 5-outer protective structure;51-rubber water stop belt. Specific implementation

[0037] In order to make the technical problems, technical schemes and beneficial effects to be solved in the utility model more clear and obvious, the utility model is further described in detail in the following by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0038] It is to be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0042] Please refer to Figures 1-9 The utility model discloses an embankment pit connecting port waterproof structure, the embankment pit connecting port waterproof structure includes structure self waterproof system 1, preburied steel sheet 2, water stop steel sheet 3, expansion water stop strip 4 and outer layer protection structure 5, wherein:

[0043] Structure self waterproof system 1 as the basis of entire waterproof structure, structure self waterproof system 1 in the embodiment includes the main body basement outer wall 11 formed by pouring reinforced concrete structure, subway side wall body 12 and connecting port side wall 13, the main body basement outer wall 11 is connected with subway side wall body 12 through connecting port side wall 13, and the connecting port 14 in connecting port side wall 13 is formed between the main body basement outer wall 11 and subway side wall body 12, since reinforced concrete main body structure itself has certain waterproof capacity, especially when the compactness and proportioning of concrete are appropriate, the main body basement outer wall 11, subway side wall body 12 and connecting port side wall 13 form an integral structure to realize the preliminary waterproof effect.

[0044] In order to enhance the strength of the main basement outer wall 11, and also to provide a stable connection point for the subsequent installation of the water stop steel plate, the pre-embedded steel plate 2 in this embodiment is pre-embedded in the main basement outer wall 11, greatly reducing the possibility of direct water penetration.

[0045] The water stop steel plate 3 is connected to the pre-embedded steel plate 2, and the water stop steel plate 3 is located in the rear communication port plate 141 on the surface of the communication port 14. In this way, with the stability of the pre-embedded steel plate 2, the water stop steel plate 3 can play a key water stop role in the rear communication port plate 141 on the surface of the communication port 14. For example, when water flow tries to penetrate through the gaps of the communication port plate, the water stop steel plate 3 can effectively block the water from continuing to penetrate inward, guiding the water flow to flow along the predetermined path or stagnate, thereby greatly enhancing the waterproof effect of the surface of the communication port 14, and preventing water from entering the foundation pit and causing damage.

[0046] In order to enhance the shear resistance of the main basement outer wall 11, a shear groove 111 is provided in the main basement outer wall 11 to prevent the wall from moving when under stress. However, the presence of the shear groove 111 may become a channel for water penetration, so in order to fill the potential water penetration path, the expansion water stop strip 4 is arranged in the shear groove 111 of the main basement outer wall 11.

[0047] The outer protective structure 5 includes a rubber water stop belt 51 arranged in the deformation joint node of the communication port 14 and a flexible full-wrap waterproof layer laid at the communication port 14. The deformation joint is a natural weak point in the structure, which is the part that allows the structure to deform. If not handled properly, water can easily penetrate from here. In this embodiment, the rubber water stop belt 51 is arranged in the deformation joint node, and its purpose is to deal with the risk of water penetration at the deformation joint. The rubber water stop belt 51 can maintain waterproof performance when the structure deforms through its elasticity and flexibility. The flexible full-wrap waterproof layer is a comprehensive protection for the whole communication port, which can cover all possible water penetration paths and form a complete waterproof barrier.

[0048] Specifically, the connection of the main basement outer wall 11, the subway side wall 12 and the communication port side wall 13 forms the communication port 14, which overall constructs a relatively regular and stable communication space. The integrated structure form helps to disperse water pressure, avoid local concentrated stress leading to leakage risk, and rely on the tightness of its own structure to achieve the initial waterproof barrier effect.

[0049] The pre-embedded steel plate 2 is placed in the designated position of the main basement outer wall 11 during the construction stage, and when the water stop steel plate 3 is connected to it later, the two can form a stable connection foundation. This pre-embedding method ensures the reliability of the installation of the water stop steel plate 3, so that the water stop structure can be accurately placed in the key position where waterproofing is needed, avoiding leakage risks caused by unstable installation in the later stage, and enhancing the overall stability of the waterproof structure in the communication port area.

[0050] The water-stop steel plate 3 utilizes its material properties and shape design to form a barrier. When water flow attempts to penetrate through the gaps of the communication port plate, the water-stop steel plate 3 can effectively block the water from further penetrating inward, guiding the water flow to drain or stagnate along the predetermined path, thereby greatly enhancing the waterproof effect of the surface of the communication port 14, preventing water from entering the interior of the foundation pit and causing damage.

[0051] The expansion water-stop strip 4 is located in the shear groove 111 at this specific position and will expand when encountering water, filling the gap between the shear groove 111 and the surrounding structure to form a tight seal. This feature enables it to actively respond to the generation of micro cracks or gaps caused by factors such as structural deformation and vibration, promptly sealing potential water infiltration channels. It not only prevents water infiltration under normal circumstances, but also maintains good waterproof performance even when a certain degree of displacement or deformation occurs, further improving the reliability and durability of the overall structural waterproofing.

[0052] The rubber water-stop belt 51, with its flexibility and elasticity, can adapt to the expansion, displacement, and other deformation conditions of the deformation joint. During the deformation process, the rubber water-stop belt 51 can effectively block water from entering the interior of the foundation pit from the deformation joint, ensuring that even when the structure undergoes certain changes, it can still maintain good waterproofing effect and protect the foundation pit from water intrusion. The flexible full-coverage waterproof layer wraps the entire communication port 14, effectively isolating external water from direct contact with the communication port structure. Whether it is river water, groundwater, or water from other sources, it is blocked outside the outer layer, preventing water from penetrating into the foundation pit. At the same time, it can also adapt to the slight deformation of the structure around the communication port, providing comprehensive protection and further enhancing the overall performance of the waterproof structure.

[0053] Thus, the structural self-waterproofing system 1 serves as the basis for the overall waterproofing capacity, reducing the possibility of water infiltration; the pre-embedded steel plate 2 and the water-stop steel plate 3 enhance the local waterproofing capacity targeting the weak points of the communication port 14; the expansion water-stop strip 4 further supplements the weak links in the structure, preventing leakage through dynamic sealing; and the outer protective structure serves as the last line of defense, ensuring the waterproofing performance of the entire communication port 14. These four parts work together to form a multi-level, comprehensive waterproofing system.

[0054] Specifically, please refer to Figure 1 As shown in the embodiment of the utility model, the first deformation joint is between the communication port side wall 13 and the subway side wall 12. On the one hand, it allows the structure to deform freely within a certain range, such as settlement, expansion, or rotation; on the other hand, it prevents the expansion of cracks and avoids the destruction of the overall structure.

[0055] It needs to be explained here that in order to deal with the settlement difference or deformation problem in the construction process, the structure characteristics of the side wall of the connecting opening and the side wall of the subway may be different in actual engineering, such as the side wall of the connecting opening may be post-poured, and the side wall of the subway is already a ready-made structure. In this case, it is normal for settlement difference or deformation to occur between the two.

[0056] Specifically, please refer to Figure 2 As shown in the utility model, in an embodiment of the utility model, the rubber waterstop 51 is arranged in the first deformation joint between the side wall 12 of the subway and the side wall 13 of the connecting opening.

[0057] Because the connecting opening 14 is located at a river location, there may be pressure of river water or underground water outside. If the deformation joint has no waterproof measure, water can easily penetrate through the gap, affecting the safety of the foundation pit. Therefore, the first deformation joint also adopts a similar waterproof design, such as embedding a rubber waterstop 51 in the joint, which can allow deformation and block water.

[0058] Specifically, please refer to Figure 5 As shown in the utility model, in an embodiment of the utility model, the width of the embedded steel plate 2 is not less than 100 mm, and the cross-sectional size of the shear groove 111 is 100*100 mm. The main function of the embedded steel plate 2 is to provide a stable connection foundation for the subsequent waterstop steel plate 3. If the steel plate is too narrow, the connection strength may be insufficient, especially in a complex underground environment, the waterstop steel plate 3 may be loose or even fall off due to water pressure or other external forces. Therefore, the design of not less than 100 mm in width is to ensure the reliability of the connection, and this width can also provide a larger contact area, disperse stress, and avoid excessive local stress.

[0059] The expansion waterstop 4 is used to prevent water penetration, and the cross-sectional size of the shear groove 111 can provide enough space for the expansion waterstop 4 to be installed more firmly, and at the same time, it can fully expand when encountering water, filling the gap in the groove. If the shear groove 111 is too small, the expansion waterstop 4 may not function properly, and if it is too large, it may lead to material waste or unstable installation.

[0060] Specifically, please refer to Figure 5 As shown in the utility model, in an embodiment of the utility model, the plate steel bar 15 is arranged in the post-made connecting opening plate 141, and the plate steel bar 15 is connected with the L-shaped reserved steel bar.

[0061] The connection of the plate steel bar 15 and the L-shaped reserved steel bar tightly combines the post-made connecting opening plate with the original main body basement outer wall 11, the subway side wall body 12 and other structures, and this connection mode makes the mutual restraint and collaborative stress of each structure part, forms a structure system with stronger integrity, and can effectively disperse and transmit the force to the whole structure when facing external load (such as soil pressure, water pressure and the like), avoids the structure damage caused by the excessive local stress, and thus improves the stability and bearing capacity of the whole connecting opening area structure.

[0062] In addition, in the concrete structure, the steel bar can effectively constrain the cracking of the concrete, especially in the case of tensile or shearing structure. This connection mode can reduce the cracks caused by temperature change, uneven settlement and other factors, prevent water from penetrating into the foundation pit through the cracks, and protect the integrity of the waterproof structure.

[0063] Specifically, as shown in Figure 6 、 7 In an embodiment of the present application, the post-made connecting opening plate 141 includes a connecting opening top plate 1411 located on the top wall of the connecting opening 14, and the top steel bar 16 is arranged around the connecting opening top plate 1411 and the main body basement outer wall 11, and the gap between the top steel bar 16 is provided with a rubber waterstop 51. When facing external load (such as soil pressure, water pressure and the like), the force can be better dispersed and transmitted, the local stress is avoided to be too large to cause structure damage, and the stability of the structure is improved. The setting of the top steel bar 16 provides additional support for the connecting opening top plate 1411, and can effectively resist the stress generated by the structure deformation (such as settlement, temperature change and the like). In the complex underground environment, this anti-deformation ability helps to maintain the geometric shape of the connecting opening area, prevents the cracks caused by the structure deformation, and thus protects the integrity of the waterproof structure.

[0064] In addition, the rubber waterstop 51 can better combine with the structure during the concrete pouring process, and reduce the voids and leakage channels caused by the non-compactness of the concrete pouring.

[0065] Specifically, as shown in Figure 8 、 9 In an embodiment of the present application, the post-made connecting opening plate 141 further includes a connecting opening bottom plate 1412 located on the bottom wall of the connecting opening 14, and the bottom steel bar 17 is arranged around the connecting opening bottom plate 1412 and the main body basement outer wall 11, and the gap between the bottom steel bar 17 is provided with a rubber waterstop 51.

[0066] Thus, the communication port bottom plate 1412 and the main body basement outer wall 11 are connected through the bottom steel bars 17 around to form a stable frame structure. This connection method can effectively combine the communication port bottom plate 1412 and the main body basement outer wall 11 together, enhance the integrity of the whole structure, and better disperse and transfer force when facing external loads (such as soil pressure, water pressure, etc.), avoid local overloading and structural damage, and improve the stability of the structure.

[0067] In addition, the bottom steel bars 17 provide additional support for the communication port bottom plate 1412, which can effectively resist stress caused by structural deformation (such as settlement, temperature change, etc.). In a complex underground environment, this deformation resistance helps maintain the geometry of the communication port area and prevent cracks caused by structural deformation, thereby ensuring the integrity of the waterproof structure.

[0068] Specifically, as shown in Figure 8 、 9 In an embodiment of the present application, the lower surface of the communication port bottom plate 1412 is also provided with a concrete cushion 18, and the thickness of the concrete cushion 18 is 99-101mm.

[0069] During construction, the underground soil layer may be uneven or soft, and the concrete cushion can effectively fill these uneven parts, so that the communication port bottom plate 1412 can be uniformly stressed, avoiding stress concentration and cracking of the bottom plate caused by uneven foundation, thereby improving the stability of the whole structure.

[0070] The concrete cushion 18 can increase the structural weight of the communication port bottom plate 1412, thereby enhancing the connection stability between the bottom plate and the main body basement outer wall 11. When facing external water pressure, soil pressure and other loads, the heavier bottom plate can better resist the action of these forces, reduce the risk of bottom plate floating or displacement, and ensure the stability of the whole communication port area structure.

[0071] Specifically, as shown in Figure 1 、 2 In an embodiment of the present application, the width of the first deformation joint is set to 99-101mm.

[0072] In underground engineering, different structural parts (such as the side wall of the connecting port and the side wall of the subway) may have different degrees of settlement due to geological conditions, construction load and other factors. The width of the first deformation joint is set to 99-101mm, which can provide enough space buffer for the settlement difference. When one side of the structure settles, the other side of the structure will not be subjected to excessive tension or pressure, thereby avoiding structural cracking caused by settlement difference and ensuring the stability of the structure. As a preferred mode of the embodiment, the width of the first deformation joint is set to 100mm, which can exactly accommodate the expansion and contraction deformation of the structure under temperature change.

[0073] The specific implementation process of the river-adjacent foundation pit connecting port waterproof structure is as follows:

[0074] When the main basement outer wall 11 is made, a pre-embedded steel plate 2 and an L-shaped reserved steel bar are arranged around the connecting part of the connecting port 14 and the main basement outer wall 11.

[0075] When the connecting port 14 is made, the surrounding wall is removed within a range of 1m from the connecting port and the outer expansion, and a shear groove 111 is knocked on the surface of the main basement outer wall 11 close to the side of the rear-made connecting port plate 141;

[0076] The plate steel bar 15 is connected with the L-shaped reserved steel bar, and the water stop steel plate 3 in the rear-made connecting port plate 141 is welded and connected with the pre-embedded steel plate 2.

[0077] The construction process adopts the connecting port post-connection method, uses the welding method of the pre-embedded steel plate in the basement outer wall and the water stop steel plate in the rear-made connecting port plate to block the water on the outer side of the surrounding structure part, which prolongs the water seepage route and greatly improves the waterproof effect. By setting the shear groove and the expansion water stop strip, the waterproof effect of the connecting port is further enhanced, and the leakage phenomenon is avoided.

[0078] Although the utility model discloses as above, the protection scope of the utility model disclosed is not limited to this. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A waterproof structure for the connection opening of a riverside foundation pit, characterized in that, include: The structural self-waterproofing system includes the main basement exterior wall, the subway side wall and the connecting opening side wall formed by the cast reinforced concrete structure. The main basement exterior wall is connected to the subway side wall through the connecting opening side wall, and a connecting opening is formed between the main basement exterior wall and the subway side wall, located within the connecting opening side wall. Pre-embedded steel plates are embedded in the exterior wall of the main basement. A water-stop steel plate is connected to the pre-embedded steel plate, and the water-stop steel plate is located inside the rear connecting plate on the surface of the connecting opening; An expansion sealing strip is installed in the shear groove of the main basement exterior wall; The outer protective structure includes a rubber waterstop disposed at the communication opening, the rubber waterstop being adapted to fill the expansion joint node of the communication opening.

2. The waterproof structure for the connection opening of the riverside foundation pit according to claim 1, characterized in that, The outer protective structure also includes a flexible, fully enclosed waterproof layer laid at the connection point.

3. The waterproof structure for the connection opening of the riverside foundation pit according to claim 1, characterized in that, There is a first expansion joint between the side wall of the connecting opening and the side wall of the subway.

4. The waterproof structure for the connection opening of the riverside foundation pit according to claim 3, characterized in that, The rubber waterstop is installed in the first expansion joint between the subway side wall and the connecting opening side wall.

5. The waterproof structure for the connection opening of the riverside foundation pit according to claim 1, characterized in that, The width of the embedded steel plate is not less than 100mm, and the cross-sectional size of the shear groove (111) is 100×100mm.

6. The waterproof structure for the connection opening of the riverside foundation pit according to claim 1, characterized in that, The slab with the connecting opening is provided with slab reinforcement bars, which are connected to the L-shaped reserved reinforcement bars on the exterior wall of the main basement.

7. The waterproof structure for the connection opening of the riverside foundation pit according to claim 1, characterized in that, The post-construction connecting plate includes a connecting plate on the top wall of the connecting opening, and top steel bars are provided around the connecting plate and the outer wall of the main basement, and the rubber waterstop is provided between the gaps of the top steel bars.

8. The waterproof structure for the connection opening of the riverside foundation pit according to claim 4, characterized in that, The post-construction connecting plate also includes a connecting bottom plate located on the bottom wall of the connecting opening. Bottom reinforcement bars are provided around the connecting bottom plate and the outer wall of the main basement, and the rubber waterstop is provided between the gaps of the bottom reinforcement bars.

9. The waterproof structure for the connection opening of the riverside foundation pit according to claim 8, characterized in that, The lower surface of the bottom plate of the connecting port is also provided with a concrete pad layer, and the thickness of the concrete pad layer is 99-101mm.

10. The waterproof structure for the connection opening of the riverside foundation pit according to claim 3, characterized in that, The width of the first expansion joint is set to 99-101 mm.

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