Water-rich area comprehensive pipe gallery anti-floating structure and construction method thereof

Abstract

The invention discloses a comprehensive pipe gallery anti-floating structure in a water-rich area and a construction method thereof, and relates to the field of building structures. The water-rich area comprehensive pipe gallery anti-floating structure comprises a comprehensive pipe gallery structure body buried underground, a water accumulation system, a filtering system and a pumping drainage system, the filtering system and the pumping drainage system are connected to the water accumulation system, and the water accumulation system is arranged on the lower portion and the two sides of the comprehensive pipe gallery structure body and used for collecting water on the lower portion and the two sides of the comprehensive pipe gallery structure body. The filtering system is used for filtering water and collecting the filtered water by the water accumulating system; and the pumping and draining system is used for selectively draining the water collected by the water accumulating system. According to the comprehensive pipe gallery anti-floating structure in the water-rich area and the construction method of the comprehensive pipe gallery anti-floating structure, the buoyancy of underground water can be reduced by reducing the water level of the underground water, and therefore the situation that the buoyancy of the underground water cannot be overcome through the self-weight of the pipe gallery structure and the pipe top earthwork weight is adapted; the device has the advantages of simple structure, convenience in construction, low manufacturing cost, high cost, good reliability and environment friendliness.

Description

Technical Field

[0001] The present application relates to the field of building structures, and in particular, to an anti-floating structure of a comprehensive pipeline corridor in a water-rich area and a construction method thereof. Background Art

[0002] The utility corridor is an underground pipeline corridor that integrates various engineering pipelines such as electricity, communications, gas, heating, water supply and drainage. The technical specifications for urban utility corridor engineering stipulate that for utility corridors buried below the historical highest water level, the anti-floating stability of the structure should be calculated according to the design conditions.

[0003] At present, the commonly used anti-floating methods for integrated pipe corridors mainly include adding weight plates, adding anti-floating pile foundations or anchor rods to the bottom plate of the pipe corridor, etc. However, adding weight plates makes the bottom plate structure of the pipe corridor complex, and for nodes with high structure height and shallow top soil cover, such as lifting ports and ventilation ports, weight plates alone may not meet the anti-floating requirements, and additional measures are needed to ensure the anti-floating safety of these nodes; and adding pile foundations or anchor rods has a complicated process and a long construction period, while increasing the project cost and having poor economic efficiency. Summary of the invention

[0004] The purpose of the present application is to provide an anti-floating structure for a comprehensive pipeline corridor in a water-rich area and a construction method thereof, which can reduce the buoyancy of groundwater by lowering the groundwater level, thereby adapting to various situations where the buoyancy of groundwater cannot be overcome by the deadweight of the pipeline corridor structure and the weight of the earth on the top of the pipe. It has the advantages of simple structure, convenient construction, low cost, high cost, good reliability, and green environmental protection.

[0005] This application is implemented as follows:

[0006] The present application provides an anti-floating structure of a comprehensive pipe gallery in a water-rich area, comprising a main body of a comprehensive pipe gallery structure buried underground, and further comprising:

[0007] The water collection system is located below and on both sides of the main structure of the integrated pipe gallery and is used to collect water below and on both sides of the main structure of the integrated pipe gallery;

[0008] A filtering system connected to the water accumulation system is used to filter the water and collect it in the water accumulation system;

[0009] The pumping system is connected to the water accumulation system and is used for selectively discharging the water collected by the water accumulation system.

[0010] In some optional implementation schemes, the water collection system includes at least one longitudinal water collection pipe buried on both sides of the main body of the integrated pipe gallery structure, a plurality of transverse water collection pipes buried under the main body of the integrated pipe gallery structure, and pumping and drainage wells arranged at intervals. The longitudinal water collection pipe extends along the length direction of the main body of the integrated pipe gallery structure, the transverse water collection pipe extends along the width direction of the main body of the integrated pipe gallery structure, the two ends of the transverse water collection pipe are respectively connected to each longitudinal water collection pipe, the bottom of the pumping and drainage well is connected to the longitudinal water collection pipe, and a plurality of water collection holes arranged at intervals are respectively opened on the longitudinal water collection pipe and the transverse water collection pipe.

[0011] In some optional embodiments, the middle parts of at least two pumping wells are connected by a connecting pipe.

[0012] In some optional embodiments, the filtration system includes a water-permeable protective membrane wrapped around the outer walls of the longitudinal water collection pipe and the transverse water collection pipe, respectively.

[0013] In some optional embodiments, the outer wall of the water-permeable protective membrane is wrapped with a coarse sand layer, the outer wall of the coarse sand layer is wrapped with a gravel layer, and the outer wall of the gravel layer is wrapped with a geotextile filter layer.

[0014] In some optional embodiments, the pumping system includes at least one water level monitor and a water pump disposed in the pumping well, and the water outlet of the water pump is connected to the municipal drainage network through a drainage pipe.

[0015] The present application also provides a construction method for the above-mentioned anti-floating structure of the integrated pipe gallery in the water-rich area, which comprises the following steps:

[0016] After the foundation pit of the main structure of the integrated pipe gallery is excavated to the base, the installation trench of the water storage system is excavated;

[0017] Install the water accumulation system, filtration system and drainage system in sequence;

[0018] Carry out the main construction of the comprehensive pipe gallery structure;

[0019] Backfill the soil of the integrated pipeline corridor on both sides and above the main structure of the integrated pipeline corridor.

[0020] In some optional implementation schemes, before excavating the foundation pit for the main structure of the integrated pipe gallery, the groundwater level is determined, and the height of the water discharge level of the pumping and drainage system is calculated and designed.

[0021] The beneficial effects of the present application are as follows: the anti-floating structure of the integrated pipe gallery in the water-rich area provided by the present application comprises an integrated pipe gallery structure body buried underground, a water accumulation system, and a filtration system and a pumping and drainage system connected to the water accumulation system. The water accumulation system is arranged below and on both sides of the integrated pipe gallery structure body to collect water below and on both sides of the integrated pipe gallery structure body, the filtration system is used to filter the water and collect it by the water accumulation system, and the pumping and drainage system is used to selectively discharge the water collected by the water accumulation system. The anti-floating structure of the integrated pipe gallery in the water-rich area provided by the present application and its construction method can reduce the buoyancy of groundwater by lowering the groundwater level, thereby adapting to various situations where the buoyancy of groundwater cannot be overcome by the self-weight of the pipe gallery structure and the weight of the earthwork on the top of the pipe, and has the advantages of simple structure, convenient construction, low cost, high cost, good reliability, and green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the local structure of the anti-floating structure of the integrated pipe gallery in a water-rich area provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a partial cross-sectional structure of an anti-floating structure of a comprehensive pipe gallery in a water-rich area provided in an embodiment of the present application;

[0025] Figure 3 For along Figure 1 Schematic diagram of the cross-sectional structure of the section line Ⅰ-Ⅰ;

[0026] Figure 4 For along Figure 1 Schematic diagram of the cross-sectional structure along the section line II-II;

[0027] Figure 5 For along Figure 1 Schematic diagram of the cross-sectional structure along the section line Ⅲ-Ⅲ;

[0028] Figure 6 A schematic diagram of the partial cross-sectional structure of the longitudinal water accumulation pipe and its outer wall in the anti-floating structure of the integrated pipeline corridor in the water-rich area provided in the embodiment of the present application, which are sequentially wrapped with a permeable protective membrane, a coarse sand layer, a gravel layer and a geotextile filter layer.

[0029] In the figure: 100, main structure of the utility corridor; 110, backfill soil of the utility corridor; 200, water accumulation system; 210, longitudinal water accumulation pipe; 220, transverse water accumulation pipe; 230, pumping well; 240, water accumulation hole; 300, filtration system; 310, water-permeable protective membrane; 320, coarse sand layer; 330, gravel layer; 340, geotextile filter layer; 400, pumping system; 410, water level monitor; 420, water pump; 430, drainage pipe. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They 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 specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] The features and performance of the anti-floating structure of the integrated pipe gallery in water-rich areas and the construction method thereof of the present application are further described in detail below in conjunction with the embodiments.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an embodiment of the present application provides an anti-floating structure of an integrated pipeline corridor in a water-rich area, including an integrated pipeline corridor structure main body 100 buried underground, a water accumulation system 200 arranged below and on both sides of the integrated pipeline corridor structure main body 100, and a filtration system 300 and a pumping and drainage system 400 connected to the water accumulation system 200. The water accumulation system 200 is used to collect water below and on both sides of the integrated pipeline corridor structure main body 100; the filtration system 300 is used to filter the water and collect it in the water accumulation system 200; the pumping and drainage system 400 is used to selectively discharge the water collected by the water accumulation system 200.

[0039] Among them, the water accumulation system 200 includes two longitudinal water accumulation pipes 210 respectively buried on both sides of the integrated pipe gallery structure body 100, transverse water accumulation pipes 220 buried at intervals below the integrated pipe gallery structure body 100, and two rows of pumping and drainage wells 230 arranged at intervals. The longitudinal water accumulation pipes 210 extend along the length direction of the integrated pipe gallery structure body 100, and each transverse water accumulation pipe 220 is arranged in parallel and extends along the width direction of the integrated pipe gallery structure body 100. Each transverse water accumulation pipe 220 is arranged at intervals along the length direction of the integrated pipe gallery structure body 100. The two ends of each transverse water accumulation pipe 220 are respectively connected to the two longitudinal water accumulation pipes 210, and the bottom of the pumping and drainage well 230 is respectively connected to the longitudinal water accumulation pipes 210 on the corresponding side. The longitudinal water accumulation pipe 210 and the transverse water accumulation pipe 220 are respectively provided with water accumulation holes 240 arranged at intervals.

[0040] The filtration system 300 includes a water-permeable protective membrane 310 respectively wrapped around the outer wall of each longitudinal water collection pipe 210 and each transverse water collection pipe 220, a coarse sand layer 320 respectively wrapped around the outer wall of the water-permeable protective membrane 310, a gravel layer 330 respectively wrapped around the outer wall of the coarse sand layer 320, and a geotextile filter layer 340 respectively wrapped around the outer wall of the gravel layer 330.

[0041] The pumping and drainage system 400 includes two water level monitors 410 and two water pumps 420 . The two water level monitors 410 and the two water pumps 420 are respectively arranged in two pumping and drainage wells 230 . The water outlets of the water pumps 420 are connected to the municipal drainage network through drainage pipes 430 .

[0042] The present application also provides a construction method for the anti-floating structure of the integrated pipe gallery in the water-rich area, which comprises the following steps:

[0043] S1. Determine the height of the underground water level, and calculate and design the height of the water level of the pumping well 230, and the spacing between the longitudinal water pipe 210 and the transverse water pipe 220;

[0044] S2. After the foundation pit of the main structure 100 of the integrated pipe gallery is excavated to the base, the positions of the longitudinal water collection pipe 210, the transverse water collection pipe 220, and the pumping well 230 are measured and laid out, and then the trench excavation of the longitudinal water collection pipe 210, the transverse water collection pipe 220, and the pumping well 230 is completed;

[0045] S3, sequentially install the water accumulation system 200, the filtration system 300 and the pumping and drainage system 400, install the longitudinal water accumulation pipe 210 and the transverse water accumulation pipe 220, and wrap the water-permeable protective film 310 on the surface of the longitudinal water accumulation pipe 210 and the transverse water accumulation pipe 220, and sequentially wrap the coarse sand layer 320, the gravel layer 330 and the geotextile filter layer 340 on the outer wall of the longitudinal water accumulation pipe 210 and the transverse water accumulation pipe 220, carry out the masonry operation of the pumping and drainage well 230, and install the water level monitor 410 and the water pump 420 in the pumping and drainage well 230, and connect the water pump 420 to the municipal drainage network through the drainage pipe 430;

[0046] S4. Carry out construction of the main structure 100 of the integrated pipe gallery;

[0047] S5. Test the water level monitor 410 and the water pump 420. Use the water level monitor 410 to test the water level in the drainage well 230, and use the water pump 420 to pass the water in the drainage well 230 into the municipal drainage network through the drainage pipe 430;

[0048] S6. Backfill the integrated pipe gallery backfill soil 110 on both sides and above the integrated pipe gallery structure main body 100.

[0049] The anti-floating structure of the integrated pipe gallery in a water-rich area and the construction method thereof provided in the embodiment of the present application are achieved by burying longitudinal water collection pipes 210 and transverse water collection pipes 220 on both sides and the bottom of the integrated pipe gallery structure main body 100, respectively, and opening water collection holes 240 on the longitudinal water collection pipes 210 and the transverse water collection pipes 220 to collect water on both sides and the bottom of the integrated pipe gallery structure main body 100, and further passing the water collected by the longitudinal water collection pipes 210 and the transverse water collection pipes 220 into the pumping well 230 for storage, and at the same time using a water level monitor 410 provided in the pumping well 230 to monitor the water level in real time, and using a pump 420 to pass the water in the pumping well 230 into the municipal drainage network through the drainage pipe 430 when the water level in the pumping well 230 reaches a preset height, thereby controlling the groundwater level of the integrated pipe gallery structure main body 100 to be below the anti-floating water level. Among them, the outer walls of the longitudinal water collection pipe 210 and the transverse water collection pipe 220 are provided with a water-permeable protective membrane 310, a coarse sand layer 320, a gravel layer 330 and a geotextile filter layer 340, which can prevent external mud and sand from entering and clogging the water collection holes 240 opened on the longitudinal water collection pipe 210 and the transverse water collection pipe 220 to affect the water collection effect and improve the service life of the water collection system 200.

[0050] The anti-floating structure of the integrated pipe gallery in the water-rich area and the construction method thereof provided in the embodiment of the present application have the following advantages:

[0051] 1. It has a wide range of applications and can be used in various situations where the deadweight of the pipe gallery structure and the weight of the earth on the top of the pipe cannot overcome the buoyancy of groundwater, and the buoyancy of groundwater can be reduced by lowering the groundwater level.

[0052] 2. The structure is simple, the construction process is few, and the construction period is controllable. Only the longitudinal water collection pipe 210 and the transverse water collection pipe 220 and other water collection facilities and the drainage well 230, the water level monitor 410, the water pump 420 and other drainage facilities are added below and on both sides of the main body 100 of the integrated pipe gallery structure. There is no need to carry out large-scale machinery and equipment in the narrow foundation pit, and the construction can be completed in a shorter time.

[0053] 3. Low cost and good economy. Compared with the anti-floating structure of the integrated pipeline corridor using anti-floating piles, the technical solution of this application has a low cost and is conducive to controlling engineering costs.

[0054] 4. The water level monitor 410 monitors the water level in the pumping well 230 in real time with high reliability, and realizes automatic pumping function through the pumping pump 420, so that the height of the groundwater level can be known at any time, and the groundwater can be automatically pumped out with high reliability.

[0055] 5. Green and environmentally friendly. The pumped groundwater can be used for greening irrigation, construction water, etc.

[0056] In other optional embodiments, the middle parts of at least two pumping wells 230 may be connected by a connecting pipe so that the water levels in the pumping wells 230 can be balanced to avoid floating due to excessive local water levels in some pumping wells 230.

[0057] In other optional embodiments, the number of the longitudinal water collection pipes 210, the transverse water collection pipes 220 and the pumping wells 230 can be adjusted arbitrarily according to actual conditions. Optionally, the number of the longitudinal water collection pipes 210 can be one, three, four or more than four. Optionally, the number of the transverse water collection pipes 220 can also be two, three, four or more than four. Optionally, the number of the pumping wells 230 can also be one, two, three, four or more than four.

[0058] In other optional embodiments, the number of the water level monitors 410 and the water pumps 420 may be one, two, three, four or more.

[0059] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. An anti-floating structure of a comprehensive pipe gallery in a water-rich area, comprising a main body of a comprehensive pipe gallery structure buried underground, characterized in that: Also includes: A water collection system is provided below and on both sides of the main structure of the integrated pipe gallery, and is used to collect water below and on both sides of the main structure of the integrated pipe gallery; A filtering system connected to the water accumulation system, used to filter water and collect it in the water accumulation system; The pumping and drainage system is connected to the water accumulation system and is used for selectively discharging the water collected by the water accumulation system.

2. The anti-floating structure of the comprehensive pipe gallery in water-rich areas according to claim 1 is characterized in that: The water collection system includes at least one longitudinal water collection pipe buried on both sides of the main structure of the integrated pipe gallery, a plurality of transverse water collection pipes buried below the main structure of the integrated pipe gallery, and pumping and drainage wells arranged at intervals. The longitudinal water collection pipe extends along the length direction of the main structure of the integrated pipe gallery, and the transverse water collection pipe extends along the width direction of the main structure of the integrated pipe gallery. Both ends of the transverse water collection pipe are respectively connected to each of the longitudinal water collection pipes, and the bottom of the pumping and drainage well is connected to the longitudinal water collection pipe. The longitudinal water collection pipe and the transverse water collection pipe are respectively provided with a plurality of water collection holes arranged at intervals.

3. The anti-floating structure of the comprehensive pipe gallery in the water-rich area according to claim 2 is characterized in that: The middle parts of at least two of the pumping wells are connected by a connecting pipe.

4. The anti-floating structure of the comprehensive pipe gallery in the water-rich area according to claim 2 is characterized in that: The filtration system includes water-permeable protective membranes respectively wrapped around the outer walls of the longitudinal water collection pipe and the transverse water collection pipe.

5. The anti-floating structure of the integrated pipe gallery in water-rich areas according to claim 4 is characterized in that: The outer wall of the water-permeable protective membrane is wrapped with a coarse sand layer, the outer wall of the coarse sand layer is wrapped with a gravel layer, and the outer wall of the gravel layer is wrapped with a geotextile filter layer.

6. The anti-floating structure of the comprehensive pipe gallery in water-rich areas according to claim 2 is characterized in that: The pumping and drainage system includes at least one water level monitor and a water pump arranged in the pumping and drainage well, and the water outlet of the water pump is connected to the municipal drainage network through a drainage pipe.

7. The construction method of the anti-floating structure of the integrated pipe gallery in the water-rich area according to any one of claims 1 to 6, characterized in that: It includes the following steps: After the foundation pit of the main structure of the integrated pipe gallery is excavated to the base, the installation trench of the water storage system is excavated; Install the water accumulation system, filtration system and drainage system in sequence; Carry out the main construction of the comprehensive pipe gallery structure; Backfilling of the integrated pipeline corridor backfill soil is carried out on both sides and above the main body of the integrated pipeline corridor structure.

8. The construction method of the anti-floating structure of the comprehensive pipe gallery in the water-rich area according to claim 7 is characterized in that: Before excavating the foundation pit for the main structure of the integrated pipeline corridor, the groundwater level should be determined and the height of the water discharge from the pumping and drainage system should be calculated and designed.

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