Precipitation well optimization arrangement method, system, equipment, medium and product

Abstract

The invention discloses a precipitation well optimization arrangement method, system and equipment, a medium and a product, and relates to the field of waterside foundation pit precipitation, and the method comprises the steps that construction parameters in a foundation pit range are obtained; determining a foundation pit dewatering method according to the construction parameters; determining a well point influence radius and a well point dewatering funnel curve according to the construction parameters and a foundation pit dewatering method; in the cross section direction of the river, the well point influence radius is used for segmenting the foundation pit interval, and foundation pit segments and dewatering well intervals are obtained; determining a well spacing combination according to the precipitation well spacing; screening the well spacing combinations to obtain an optimal well spacing combination; according to the optimal well spacing combination and the shape of the foundation pit, a precipitation well optimization arrangement scheme is obtained; the dewatering efficiency can be improved, and the foundation pit dewatering cost is saved.

Description

Technical Field

[0001] The present application relates to the field of water-side foundation pit dewatering, and in particular to a method, system, equipment, medium and product for optimizing the arrangement of dewatering wells. Background Art

[0002] In foundation pit engineering, when the groundwater level in the foundation pit is higher than the excavation design elevation, in order to ensure the dryness of the construction surface and improve construction safety, it is necessary to dewater the foundation pit before excavation to lower the water level. In foundation pit dewatering engineering, the layout of well points has an important impact on the dewatering effect and construction safety.

[0003] The existing layout of well points in foundation pits mainly includes linear layout, circular layout and grid layout. The design idea of ​​the layout of well points in foundation pits is to design the number of well points by calculating the total water inflow of the foundation pit and the water inflow of a single well, and distribute the well points around or inside the foundation pit with equal linear distance or equal area spacing. However, when the method of arranging precipitation wells at equal intervals is used for the ground conditions with uneven initial groundwater level distribution, the groundwater will still be unevenly distributed after the foundation pit precipitation is completed, and the infiltration effect will be enhanced after the foundation pit precipitation is completed, which is easy to cause quicksand and pipe gushing damage, resulting in uneven settlement, and cannot improve the precipitation efficiency.

[0004] The foundation pit near the water is close to the river. There is abundant groundwater supply on the river side, but no groundwater supply on the far river side. As a result, the groundwater level is high on the river side, while the groundwater level on the far river side gradually decreases with the increase of distance from the river. In view of this groundwater distribution condition, the existing method of arranging precipitation wells at equal intervals cannot meet the high requirements of low cost and short construction period.

[0005] Therefore, based on the above problems, there is an urgent need to provide a new method or system for optimizing the layout of dewatering wells to improve dewatering efficiency and save foundation pit dewatering costs. Summary of the invention

[0006] The purpose of this application is to provide a method, system, equipment, medium and product for optimizing the layout of dewatering wells, which can improve the dewatering efficiency and save the cost of foundation pit dewatering.

[0007] To achieve the above objectives, this application provides the following solutions: In a first aspect, the present application provides a method for optimizing the layout of precipitation wells, the method comprising: Obtaining construction parameters within the scope of the foundation pit, the construction parameters including: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, required groundwater drop depth, initial groundwater level distribution and construction period; Determine the foundation pit dewatering method according to the construction parameters; the foundation pit dewatering method includes: light well point, jet well point, electro-osmosis well point and pipe well point; Determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method; In the cross-sectional direction of the river, the foundation pit spacing is segmented using the well point influence radius to obtain the foundation pit segments and the spacing between the precipitation wells; Determine a well spacing combination according to the dewatering well spacing; and screen the well spacing combination to obtain an optimal well spacing combination; According to the optimal well spacing combination and foundation pit shape, an optimized layout plan for dewatering wells is obtained.

[0008] Optionally, determining the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method specifically includes: Using the formula Determine the well point influence radius; where, is the well point influence radius, To design the depth of groundwater drop in the foundation pit, is the permeability coefficient, is the thickness of the phreatic aquifer; Using the formula Determine the well point dewatering funnel curve; where: is the vertical distance from the calculation point on the precipitation funnel curve to the waterproof bottom plate, is the water level in the well after precipitation, is the horizontal distance from the calculation point on the precipitation funnel curve to the axis of the pumping well, is the radius of the precipitation well.

[0009] Optionally, determining a well spacing combination according to the precipitation well spacing; and screening the well spacing combination to obtain an optimal well spacing combination specifically includes: According to the dewatering well spacing, multiple well spacing combinations and corresponding depth reduction superposition values ​​are determined; the depth reduction superposition value is the required groundwater dewatering depth of each well spacing combination at the midpoint of the foundation pit section; According to the drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth, the well spacing combinations are screened to determine the optimal well spacing combination.

[0010] Optionally, the step of screening the well spacing combinations according to the drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth to determine the optimal well spacing combination specifically includes: The drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth are stored in an Excel table to obtain an Excel screening table; According to the Excel screening table, a program is written using the opening tool VBA to screen multiple well spacing combinations and determine the optimal well spacing combination; the program is used to use the groundwater precipitation depth threshold range to screen the values ​​in the Excel screening table.

[0011] Optionally, the step of obtaining an optimized layout scheme of dewatering wells according to the optimal well spacing combination and the foundation pit shape further includes: The effect parameters of the optimized layout of precipitation wells are compared with those of the layout of wells with equal distance and the same number to obtain a comparison result; the effect parameters include precipitation rate and groundwater distribution after precipitation.

[0012] Optionally, the effect parameters of the optimized arrangement scheme of the precipitation wells are compared with the arrangement scheme of well spacing with the same number and distance to obtain the comparison result, which specifically includes: Finite element numerical software is used to simulate the effects of the optimal layout of dewatering wells and the layout of wells with equal distances and the same number of wells, and the effect parameters are obtained. The effect parameters are compared to obtain a comparison result.

[0013] In a second aspect, the present application provides a precipitation well optimization arrangement system, the precipitation well optimization arrangement system comprising: A construction parameter acquisition module is used to acquire construction parameters within the scope of the foundation pit, wherein the construction parameters include: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, required groundwater drop depth, initial groundwater level distribution and construction period; A dewatering method determination module is used to determine the foundation pit dewatering method according to the construction parameters; the foundation pit dewatering method includes: light well point, jet well point, electro-osmosis well point and pipe well point; An influence radius determination module, used to determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method; A dewatering well spacing determination module is used to segment the foundation pit spacing in the river cross-section direction using the well point influence radius to obtain foundation pit segments and dewatering well spacing; An optimal well spacing combination determination module is used to determine a well spacing combination according to the precipitation well spacing; and screen the well spacing combination to obtain an optimal well spacing combination; The arrangement scheme determination module is used to obtain the optimized arrangement scheme of the dewatering wells according to the optimal well spacing combination and the foundation pit shape.

[0014] In a third aspect, the present application provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of any one of the above-described methods for optimizing the arrangement of dewatering wells.

[0015] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the above-described methods for optimizing the arrangement of dewatering wells.

[0016] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned methods for optimizing the layout of dewatering wells.

[0017] According to the specific embodiments provided in this application, this application has the following technical effects: The present application provides a method, system, equipment, medium and product for optimizing the layout of dewatering wells. According to the specific construction parameters of the project, the foundation pit dewatering method and the well point dewatering funnel curve are determined, and the maximum influence radius of the well point and the corresponding groundwater dewatering depth are further determined. The well spacing combination is obtained by segmenting the foundation pit spacing, and then the optimal well spacing combination is obtained to determine the optimized layout plan of the dewatering wells. The present application can improve the dewatering efficiency and save the foundation pit dewatering cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of a flow chart of a method for optimizing the arrangement of precipitation wells in one embodiment of the present application; Figure 2 This is a schematic diagram of screening the well spacing combination in one embodiment of the present application; Figure 3 This is a schematic diagram of the VBA programming code of the Excel development tool in one embodiment of the present application; Figure 4 This is a schematic diagram of an example of optimized layout of precipitation wells in one embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. 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 this application.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] In an exemplary embodiment, Figure 1 As shown, a method for optimizing the layout of precipitation wells is provided, and the method for optimizing the layout of precipitation wells includes the following S1-S6. Among them: S1: Obtain construction parameters within the scope of the foundation pit, wherein the construction parameters include: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, required groundwater drop depth, initial groundwater level distribution and construction period.

[0023] According to the geological exploration data and the requirements for the excavation depth of the foundation pit, the soil parameters of the foundation pit, the excavation depth of the foundation pit, the designed groundwater drop depth of the foundation pit, the required groundwater drop depth, the initial groundwater level distribution and the construction period are determined within the scope of the foundation pit. The general trend of the groundwater level distribution of the water-facing foundation pit is that the groundwater level is high on the side close to the river and low on the side far from the river. If the soil geology is homogeneous, according to Darcy's law, the groundwater level generally shows a linear trend of a straight drop from the river side.

[0024] S2: Determine the foundation pit dewatering method according to the construction parameters.

[0025] According to the construction parameters, select the appropriate well point dewatering method. Common well point dewatering methods include light well points, jet well points, electro-osmosis well points and tube well points.

[0026] S3: Determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method.

[0027] According to Darcy's law and Qiu Buyi's basic assumption, combined with construction parameters and foundation pit dewatering methods, the well point influence radius and well point dewatering funnel curve can be determined. The calculation formulas are as follows: .

[0028] .

[0029] in, is the well point influence radius, To design the depth of groundwater drop in the foundation pit, is the permeability coefficient, is the thickness of the unconfined aquifer, is the vertical distance from the calculation point on the precipitation funnel curve to the waterproof bottom plate, is the water level in the well after precipitation, is the horizontal distance from the calculation point on the precipitation funnel curve to the axis of the pumping well, is the radius of the precipitation well.

[0030] According to the well point dewatering funnel curve, the dewatering depth at different horizontal distances from the calculation point on the well point dewatering funnel curve to the axis of the pumping well under the effect of single well dewatering can be obtained. For example, at intervals of 4m, the dewatering depth at distances of 4m, 8m, 12m, 16m, 20m, etc. from the axis of the pumping well is calculated until the dewatering depth at the maximum influence radius of the well point.

[0031] S4: In the cross-sectional direction of the river, the foundation pit spacing is segmented using the well point influence radius to obtain the foundation pit segments and the spacing between the precipitation wells.

[0032] Since the required precipitation depth at each point of the foundation pit in the direction of the river cross section is different, and when the foundation pit is long, the arrangement and combination of the well spacing is more complicated and difficult to calculate, in order to simplify the superposition calculation, the foundation pit is divided into sections in the direction of the river cross section with the maximum influence radius of the well point as the spacing, and the precipitation well spacing is determined within the foundation pit section.

[0033] S5: Determine a well spacing combination according to the dewatering well spacing; and screen the well spacing combination to obtain an optimal well spacing combination.

[0034] Determine the spacing between dewatering wells within the foundation pit section, and list multiple feasible well spacing combinations, for example, use the maximum influence radius of the well point that is an integer multiple of 4m as an element set, and arrange them in combination. The same element can be reused in the combination. Calculate the depth superposition value of each well spacing combination at the midpoint of each foundation pit section. The depth superposition value should consider two factors: the influence of the dewatering wells within the section on the midpoint position and the superposition influence of the dewatering wells within the maximum influence radius of the well point in the adjacent section. Calculate the required groundwater dewatering depth at the midpoint of each foundation pit section, and screen multiple feasible well spacing combinations based on the required groundwater dewatering depth, and select a well spacing combination that is close to the depth dewatering requirement and has a relatively uniform distribution as the optimal well spacing combination.

[0035] When screening multiple feasible well spacing combinations, each well spacing combination and the corresponding groundwater precipitation depth are imported into two columns of the Excel table, such as Figure 2As shown, enter the minimum and maximum values ​​of the filter, that is, the groundwater precipitation depth threshold, in any two cells of the Excel table. In the column of the groundwater precipitation depth data value, check whether there is a data value that meets the groundwater precipitation depth threshold range. If so, copy the groundwater precipitation depth data value and the corresponding well spacing combination to the specified area in the Excel table. Among them, when filtering the data values ​​that meet the groundwater precipitation depth threshold range, the opening tool VBA in the Excel table is used to write a small program to complete it. The programming example is as follows Figure 3 shown.

[0036] S6: According to the optimal well spacing combination and the foundation pit shape, an optimized layout plan for the dewatering wells is obtained.

[0037] The optimal well spacing combination is applied in the foundation pit section. The well spacing of the entire foundation pit in the river cross-section direction is determined. The appropriate precipitation well plane layout form is determined according to the shape of the foundation pit. Common precipitation well plane layout forms include linear and circular. Combined with the determined well spacing distribution, the optimized layout design of precipitation wells in the water-side foundation pit is completed. Figure 4 shown.

[0038] After obtaining the optimized layout of precipitation wells, the finite element numerical software was used to simulate the foundation pit dewatering effect of the optimized layout of precipitation wells and the layout of wells with the same number and distance. The precipitation rate and groundwater distribution after precipitation under the two different precipitation well layouts were compared and analyzed.

[0039] The analysis results show that the optimized layout of precipitation wells can complete the precipitation task earlier and improve the precipitation efficiency. After the precipitation is completed, the groundwater is evenly distributed, the infiltration effect is reduced, and the risks of precipitation sand flow, pipe damage and uneven surface settlement are reduced.

[0040] In an exemplary embodiment, a precipitation well optimization arrangement system is provided, and the precipitation well optimization arrangement system comprises: A construction parameter acquisition module is used to acquire construction parameters within the scope of the foundation pit, wherein the construction parameters include: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, required groundwater drop depth, initial groundwater level distribution and construction period; A dewatering method determination module is used to determine the foundation pit dewatering method according to the construction parameters; the foundation pit dewatering method includes: light well point, jet well point, electro-osmosis well point and pipe well point; An influence radius determination module, used to determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method; A dewatering well spacing determination module is used to segment the foundation pit spacing in the river cross-section direction using the well point influence radius to obtain foundation pit segments and dewatering well spacing; An optimal well spacing combination determination module is used to determine a well spacing combination according to the precipitation well spacing; and screen the well spacing combination to obtain an optimal well spacing combination; The arrangement scheme determination module is used to obtain the optimized arrangement scheme of the dewatering wells according to the optimal well spacing combination and the foundation pit shape.

[0041] In an exemplary embodiment, the present application also provides a computer device, which may be a server or a terminal. The computer device includes a processor, a memory, an input / output interface, and a communication interface. The processor, the memory, and the input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, the method for optimizing the layout of precipitation wells is implemented.

[0042] In an exemplary embodiment, the present application also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method for optimizing the arrangement of dewatering wells is implemented.

[0043] In an exemplary embodiment, the present application also provides a computer program product, including a computer program, which implements the method for optimizing the layout of dewatering wells when executed by a processor.

[0044] It can be understood by a person skilled in the art that all or part of the processes in the above-mentioned embodiment method can be completed by hardware related to computer program instructions, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the process of the embodiment of the above-mentioned method. Among them, any reference to the memory or other medium in each embodiment provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for optimizing the layout of precipitation wells, characterized in that: The method for optimizing the arrangement of precipitation wells comprises: Obtaining construction parameters within the scope of the foundation pit, the construction parameters including: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, required groundwater drop depth, initial groundwater level distribution and construction period; Determine the foundation pit dewatering method according to the construction parameters; the foundation pit dewatering method includes: light well point, jet well point, electro-osmosis well point and pipe well point; Determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method; In the cross-sectional direction of the river, the foundation pit spacing is segmented using the well point influence radius to obtain the foundation pit segments and the spacing between the precipitation wells; Determine a well spacing combination according to the dewatering well spacing; and screen the well spacing combination to obtain an optimal well spacing combination; According to the optimal well spacing combination and foundation pit shape, an optimized layout plan for dewatering wells is obtained.

2. The method for optimizing the layout of precipitation wells according to claim 1, characterized in that: Determining the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method specifically includes: Using the formula Determine the well point influence radius; where, is the well point influence radius, To design the depth of groundwater drop in the foundation pit, is the permeability coefficient, is the thickness of the phreatic aquifer; Using the formula Determine the well point dewatering funnel curve; where: is the vertical distance from the calculation point on the precipitation funnel curve to the waterproof bottom plate, is the water level in the well after precipitation, is the horizontal distance from the calculation point on the precipitation funnel curve to the axis of the pumping well, is the radius of the precipitation well.

3. The method for optimizing the layout of precipitation wells according to claim 1, characterized in that: Determining a well spacing combination according to the precipitation well spacing; The well spacing combinations are screened to obtain the optimal well spacing combination, which specifically includes: According to the dewatering well spacing, multiple well spacing combinations and corresponding depth reduction superposition values ​​are determined; the depth reduction superposition value is the required groundwater dewatering depth of each well spacing combination at the midpoint of the foundation pit section; According to the drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth, the well spacing combinations are screened to determine the optimal well spacing combination.

4. The method for optimizing the layout of precipitation wells according to claim 3, characterized in that: The method of screening the well spacing combinations according to the drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth to determine the optimal well spacing combination specifically includes: The drawdown superposition value corresponding to each well spacing combination and the required groundwater drawdown depth are stored in an Excel table to obtain an Excel screening table; According to the Excel screening table, a program is written using the opening tool VBA to screen multiple well spacing combinations and determine the optimal well spacing combination; the program is used to use the groundwater precipitation depth threshold range to screen the values ​​in the Excel screening table.

5. The method for optimizing the layout of precipitation wells according to claim 1, characterized in that: The method further comprises: obtaining an optimized layout scheme of the dewatering wells according to the optimal well spacing combination and the foundation pit shape; and then: The effect parameters of the optimized layout of precipitation wells are compared with those of the layout of wells with equal distance and the same number to obtain a comparison result; the effect parameters include precipitation rate and groundwater distribution after precipitation.

6. The method for optimizing the layout of precipitation wells according to claim 5, characterized in that: The effect parameters of the optimized layout of the precipitation wells are compared with the layout of the well spacing with the same number and distance, and the comparison results are obtained, which specifically include: Finite element numerical software is used to simulate the effects of the optimal layout of dewatering wells and the layout of wells with equal distances and the same number of wells, and the effect parameters are obtained. The effect parameters are compared to obtain a comparison result.

7. A precipitation well optimization layout system, characterized in that: The dewatering well optimization arrangement system comprises: The construction parameter acquisition module is used to acquire the construction parameters within the scope of the foundation pit, and the construction parameters include: foundation pit soil layer parameters, foundation pit excavation depth, designed foundation pit groundwater drop depth, groundwater required drop depth, initial groundwater level distribution and construction period; A dewatering method determination module is used to determine the foundation pit dewatering method according to the construction parameters; the foundation pit dewatering method includes: light well point, jet well point, electro-osmosis well point and pipe well point; An influence radius determination module, used to determine the well point influence radius and the well point dewatering funnel curve according to the construction parameters and the foundation pit dewatering method; A dewatering well spacing determination module is used to segment the foundation pit spacing in the river cross-section direction using the well point influence radius to obtain foundation pit segments and dewatering well spacing; An optimal well spacing combination determination module is used to determine a well spacing combination according to the precipitation well spacing; and screen the well spacing combination to obtain an optimal well spacing combination; The arrangement scheme determination module is used to obtain the optimized arrangement scheme of the dewatering wells according to the optimal well spacing combination and the foundation pit shape.

8. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for optimizing the arrangement of dewatering wells according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for optimizing the arrangement of dewatering wells according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method for optimizing the arrangement of dewatering wells according to any one of claims 1 to 6 is implemented.

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