Sewage pipeline foundation distinguishing and processing method

Abstract

The invention provides a sewage pipeline foundation distinguishing and processing method which comprises the following steps: detecting a bearing layer of a pipeline foundation, and obtaining a bearing capacity detection value fk of the bearing layer of the pipeline foundation; setting a road correction coefficient D to preliminarily correct the bearing capacity detection value fk; setting an importance coefficient W to further correct the preliminarily corrected bearing capacity detection value fk; and setting an underground water influence coefficient S, and confirming the finally corrected bearing capacity detection value fk to obtain a corrected bearing capacity correction value fk. According to the method, various influence factors such as a pipeline foundation bearing layer condition, a road pavement intact condition, the importance of the position, an underground water level condition and the like are comprehensively considered, and the bearing capacity detection value is corrected by introducing a road correction coefficient, an importance coefficient and an underground water influence coefficient, so that the judgment accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal engineering and relates to a sewage pipe foundation identification and treatment method. Background Art

[0002] As an important part of urban infrastructure, the construction quality of sewage pipes directly affects the safety of public transportation and adjacent buildings. Traditional pipeline foundation treatment methods often need to be determined after geological surveys, which takes a long time and cannot respond to complex and changing geological conditions and environmental factors in a timely manner. Therefore, there is an urgent need for a technical solution that can comprehensively evaluate multiple influencing factors, quickly and accurately determine the soil conditions of the bearing layer of the pipeline foundation, and select the optimal pipeline foundation treatment method based on this. Summary of the invention

[0003] The purpose of the present invention is to provide a method for identifying and treating the foundation of a sewage pipe in view of the defects of the prior art. The present invention aims to construct a correction index system by comprehensively considering various influencing factors such as the bearing layer condition of the pipeline foundation, the integrity of the road pavement, the importance of the location and the groundwater level, so as to improve the accuracy of pipeline foundation identification, thereby improving the construction efficiency and quality of the sewage pipe and ensuring the stability and safety of the pipeline foundation.

[0004] A first aspect of the present invention provides a sewage pipe foundation identification method, comprising: Detect the bearing layer of the pipeline foundation and obtain the bearing capacity detection value fk of the bearing layer of the pipeline foundation; The road correction coefficient D is set to make a preliminary correction to the bearing capacity detection value fk; The importance coefficient W is set to further correct the initially corrected bearing capacity detection value fk; Set the groundwater influence coefficient S to confirm the final corrected bearing capacity detection value fk and obtain the corrected bearing capacity correction value fk 修 , denoted as fk 修 =D*W*S*fk.

[0005] Preferably, when testing the bearing layer of the pipeline foundation, when the groundwater cannot be drained below the bottom of the trench, an excavator is used to dig the soil of the bearing layer at the bottom of the trench as a whole to the ground, and then the loose soil is cleaned before testing.

[0006] Preferably, when the road correction coefficient D is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table according to the road conditions: .

[0008] Preferably, when the importance coefficient W is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table according to the road conditions: .

[0010] Preferably, when the groundwater influence coefficient S is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table according to the road surface conditions: .

[0012] The second aspect of the present invention provides a sewage pipe foundation treatment method, which uses any of the sewage pipe foundation identification methods described above to identify the pipe foundation, and according to the corrected bearing capacity detection value fk 修 Select the corresponding basic processing method from the following three processing methods: Method 1: When the bearing capacity of the bearing layer is poor, pine piles are driven into the bearing layer for reinforcement. The minimum diameter of the small head of the pine piles should not be less than 15 cm. The pine piles are arranged in a plum blossom shape with a center spacing of 50 cm. Method 2: Replace the bearing layer with crushed stone; Method three: Lay medium-coarse sand to form a cushion foundation. When there is groundwater and the groundwater level is higher than the pipe bottom elevation, all the medium-coarse sand is replaced with gravel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a method for quickly identifying the soil quality of the bearing layer of a sewage pipe foundation. Through improved light penetration detection technology and a correction index system that comprehensively considers multiple influencing factors, the bearing capacity of the pipe foundation can be accurately obtained in a relatively short time, providing strong support for quickly responding to construction needs. According to the method of the present invention, the treatment method required for the pipe foundation can be accurately determined, so that the required materials can be conveniently prepared before construction, thereby improving construction efficiency. Taking into account multiple on-site actual factors such as the bearing layer of the pipe foundation, the integrity of the road surface, the importance of the location, and the groundwater level, by setting the correction coefficient, the actual on-site situation can be more accurately reflected, ensuring that the selected pipe foundation treatment method is highly consistent with the on-site conditions, thereby improving the pertinence and effectiveness of the construction.

[0014] The present invention provides a method for identifying the foundation of a sewage pipe, which comprehensively considers multiple influencing factors such as the bearing layer condition of the pipe foundation, the integrity of the road surface, the importance of the location and the groundwater level. The present invention corrects the bearing capacity detection value by introducing a road correction coefficient, an importance coefficient and a groundwater influence coefficient to improve the accuracy of the identification.

[0015] According to the revised bearing capacity test value, the most appropriate pipeline foundation treatment method is selected, including pine pile foundation, gravel replacement foundation and medium-coarse sand cushion foundation, and special treatment methods are formulated for the situation where the groundwater level is higher than the pipe bottom elevation, which can effectively improve the construction efficiency and quality of sewage pipes and ensure the stability and safety of the pipeline foundation. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the examples are only used for illustrative purposes and cannot be construed as limitations on this patent.

[0017] As an embodiment of the present invention, this embodiment provides a sewage pipe foundation identification method, including: Detect the bearing layer of the pipeline foundation and obtain the bearing capacity detection value fk of the bearing layer of the pipeline foundation; The road correction coefficient D is set to make a preliminary correction to the bearing capacity detection value fk; The importance coefficient W is set to further correct the initially corrected bearing capacity detection value fk; Set the groundwater influence coefficient S to confirm the final corrected bearing capacity detection value fk and obtain the corrected bearing capacity correction value fk 修 , denoted as fk 修 =D*W*S*fk.

[0018] Specifically, when inspecting the bearing layer of the pipeline foundation, when the groundwater cannot be drained below the bottom of the trench, an excavator is used to dig the bearing layer soil at the bottom of the trench as a whole to the ground, and then the loose soil is cleaned before inspection.

[0019] In some preferred embodiments, when the road correction coefficient D is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table according to the road surface conditions: .

[0021] In some embodiments, when the importance coefficient W is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table for correction based on the road surface conditions: .

[0023] In some embodiments, when the groundwater influence coefficient S is set to make a preliminary correction to the bearing capacity detection value fk, the corresponding correction coefficient is selected according to the following table according to the road surface conditions: .

[0025] After monitoring and correcting the bearing capacity of the pipeline foundation, different processes are selected to treat the pipeline foundation according to the corrected bearing capacity, that is, a sewage pipeline foundation treatment method, using any of the sewage pipeline foundation identification methods described above to identify the pipeline foundation, and according to the corrected bearing capacity correction value fk 修 Select the corresponding basic processing method from the following three processing methods: Method 1: When the bearing capacity of the bearing layer is poor, pine piles are driven into the bearing layer for reinforcement. The minimum diameter of the small head of the pine piles should not be less than 15 cm. The pine piles are arranged in a plum blossom shape with a center spacing of 50 cm. Method 2: Replace the bearing layer with crushed stone; Method three: Lay medium-coarse sand to form a cushion foundation. When there is groundwater and the groundwater level is higher than the pipe bottom elevation, all the medium-coarse sand is replaced with gravel.

[0026] It should be noted that, according to different bearing capacity conditions, one treatment method can be selected, or multiple treatment methods can be combined.

[0027] Combined with the actual engineering experience, as a preferred embodiment, specifically, the pipeline foundation method is based on the bearing capacity correction value fk 修 The interval is selected as follows: .

[0029] Through the introduction of the present invention, it should be understood that the present invention aims to construct a correction index system to improve the accuracy of pipeline foundation identification by comprehensively considering multiple influencing factors such as the bearing layer conditions of the pipeline foundation, the integrity of the road pavement, the importance of the location and the groundwater level, thereby improving the construction efficiency and quality of the sewage pipeline and ensuring the stability and safety of the pipeline foundation.

[0030] In addition, according to the corrected bearing capacity test value, the present invention also provides how to select the most appropriate pipeline foundation treatment method, including pine pile foundation, gravel replacement foundation and medium-coarse sand cushion foundation, and formulates special treatment methods for the situation where the groundwater level is higher than the pipe bottom elevation, which can effectively improve the construction efficiency and quality of the sewage pipeline and ensure the stability and safety of the pipeline foundation.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A method for identifying the foundation of a sewage pipe, characterized in that: include: Detect the bearing layer of the pipeline foundation and obtain the bearing capacity detection value fk of the bearing layer of the pipeline foundation; Set the road correction coefficient D to make a preliminary correction to the bearing capacity detection value fk; The importance coefficient W is set to further correct the initially corrected bearing capacity detection value fk; Set the groundwater influence coefficient S to confirm the final corrected bearing capacity detection value fk and obtain the corrected bearing capacity correction value fk 修 , denoted as fk 修 =D*W*S*fk.

2. A sewage pipe foundation identification method according to claim 1, characterized in that: When inspecting the bearing layer of the pipeline foundation, if the groundwater cannot be drained below the bottom of the trench, use an excavator to dig the bearing layer soil at the bottom of the trench to the ground as a whole, and then clean the loose soil before inspection.

3. A sewage pipe foundation identification method according to claim 1, characterized in that: When setting the road correction coefficient D to make a preliminary correction to the bearing capacity detection value fk, according to the road conditions, select the corresponding correction coefficient according to the following table for correction: 。 4. A sewage pipe foundation identification method according to claim 1, characterized in that: When setting the importance coefficient W to make a preliminary correction to the bearing capacity detection value fk, according to the road conditions, select the corresponding correction coefficient according to the following table for correction: 。 5. A sewage pipe foundation identification method according to claim 1, characterized in that: When setting the groundwater influence coefficient S to make a preliminary correction to the bearing capacity test value fk, according to the road conditions, select the corresponding correction coefficient according to the following table for correction: 。 6. A sewage pipe foundation treatment method, characterized in that: The sewage pipe foundation identification method according to any one of claims 1 to 5 is used to identify the pipe foundation, and the pipe foundation is identified according to the corrected bearing capacity correction value fk 修 Select the corresponding basic processing method from the following three processing methods: Method 1: When the bearing capacity of the bearing layer is poor, pine piles are driven into the bearing layer for reinforcement. The minimum diameter of the small head of the pine piles should not be less than 15 cm. The pine piles are arranged in a plum blossom shape with a center spacing of 50 cm. Method 2: Replace the bearing layer with crushed stone; Method three: Lay medium-coarse sand to form a cushion foundation. When there is groundwater and the groundwater level is higher than the pipe bottom elevation, all the medium-coarse sand is replaced with gravel.

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