Method for evaluating stability of diaphragm wall joint

Abstract

The invention relates to the technical field of mechanical arms, and discloses a diaphragm wall joint stability evaluation method comprising the following steps: obtaining initial information of a to-be-evaluated structure, the to-be-evaluated structure being a connection structure of a current diaphragm wall and diaphragm walls at two sides of the connection structure, multi-stage pressure detection is carried out beside a current to-be-evaluated structure within limited time, so that data change values under different load conditions in pressure detection are detected and stored, data information obtained through detection under different load conditions is preprocessed to obtain processed information, the current processed information is made into a detection change diagram, and the detection change diagram is used for detecting the current to-be-evaluated structure. Pouring the detection change diagram into an evaluation system, and detecting the change of the detection change diagram through the evaluation system so as to make evaluation; according to the invention, the stability evaluation of the current diaphragm wall joint is obtained by detecting the data of the diaphragm wall joint and collecting and analyzing the change data in the pressure loading process.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical arms, and more specifically, to a stability evaluation method for a ground-to-wall joint. Background Art

[0002] The underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a long and narrow deep trench along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the trench is cleared, a steel cage is suspended in the trench, and then underwater concrete is poured using the conduit method to form a unit trench section. This process is carried out section by section to build a continuous reinforced concrete wall underground as a water interception, anti-seepage, load-bearing and water retaining structure.

[0003] Underground continuous wall is an important foundation project and plays an important role as the cornerstone of other projects, so its stability is very important. During the use of underground continuous wall, joints are needed to connect the underground continuous walls, and the stability of the joints is also very important. Therefore, a stability evaluation method for underground continuous wall joints is proposed. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a method for evaluating the stability of a ground-to-wall joint, which has the advantage of more precise operation.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for evaluating the stability of a ground-to-wall joint, comprising the following steps:

[0006] S1: obtaining initial information of the structure to be evaluated, wherein the structure to be evaluated is the connection structure of the current ground-connected wall and the ground-connected walls on both sides of the connection structure;

[0007] S2: Perform multi-level pressure detection next to the current structure to be evaluated within a limited time, so as to detect and save the data change values ​​under different load conditions during the pressure detection;

[0008] S3: pre-processing the data information obtained under different load conditions to obtain processed information;

[0009] S4: converting the currently processed information into a detection change map;

[0010] S5: The detection change graph is imported into the evaluation system, so that the evaluation system detects the changes in the detection change graph and makes an evaluation.

[0011] As a preferred technical solution of the present invention, the contact position between the ground-connected wall and the connection structure in S1 is set as a detection surface, and the stability of the current ground-connected wall structure is evaluated by detecting the detection surface.

[0012] As a preferred technical solution of the present invention, the ground-to-wall connection structure in S1 includes a connection box, a connection shaft, and a preset locking pipe for connection.

[0013] As a preferred technical solution of the present invention, the limited time in S2 includes a first time period, a second time period, and a third time period, and the pressure detection includes a first-level pressure load detection, a second-level pressure load detection, and a third-level pressure load detection. By performing different load detections in different time periods, pressure detection of the structure to be evaluated can be achieved.

[0014] As a preferred technical solution of the present invention, the detection items in S2 include the soil layer density of the precast soil layer and the internal friction angle of the precast soil layer. According to the internal friction angle of the precast soil layer and a preset formula, the static earth pressure coefficient of the precast soil layer is calculated. According to the soil layer density of the precast soil layer and the static earth pressure coefficient of the precast soil layer.

[0015] As a preferred technical solution of the present invention, in S1, a plurality of sensors are arranged inside the ground connection wall head, and the ground connection wall data is detected by the sensors and the data changes are recorded.

[0016] As a preferred technical solution of the present invention, the information preprocessing in S3 includes a first processing unit, a second processing unit, and a third processing unit. The first processing unit is used to calculate the static earth pressure coefficient of the precast soil layer according to the internal friction angle of the precast soil layer and a preset formula. The second processing unit is used to calculate the static earth pressure coefficient of the precast soil layer according to the soil layer density of the precast soil layer and the static earth pressure coefficient of the precast soil layer. The third processing unit detects the current ground-connected wall joint structure pressure with different methods.

[0017] As a preferred technical solution of the present invention, the information acquired in S2 includes a first vertical reference starting coordinate and a second vertical reference starting coordinate, and the horizontal distance between the first vertical reference starting coordinate and the second vertical reference starting coordinate is a preset multiple of the scale ratio of the thickness of the annular ground-connected wall wall to the thickness of the single ground-connected wall evaluation unit.

[0018] As a preferred technical solution of the present invention, in S4, the information obtained in S3 is linked by mapping software to form a detection change graph for easy analysis.

[0019] As a preferred technical solution of the present invention, the evaluation system in S5 analyzes the detection change diagram and compares the detection standards to judge the quality of the current detection information, thereby making a judgment on the detection information and obtaining a stability evaluation of the current ground-connected wall structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: obtaining initial information of the structure to be evaluated, wherein the structure to be evaluated is the connection structure of the current ground-connected wall and the ground-connected walls on both sides of the connection structure, performing multi-level pressure detection next to the current structure to be evaluated within a limited time, thereby detecting and saving data change values ​​under different load conditions during the pressure detection, pre-processing the data information under different load conditions obtained by the detection to obtain processed information, making the current processed information into a detection change graph, pouring the detection change graph into the evaluation system, thereby detecting the changes in the detection change graph through the evaluation system to make an evaluation, and the strength and stability of the ground-connected wall joint can be evaluated in the above manner, thereby judging whether the current ground-connected wall structure meets the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, the present invention provides a method for evaluating the stability of a ground-to-wall joint, comprising the following steps:

[0024] S1: obtaining initial information of the structure to be evaluated, wherein the structure to be evaluated is the connection structure of the current ground-connected wall and the ground-connected walls on both sides of the connection structure;

[0025] S2: Perform multi-level pressure detection next to the current structure to be evaluated within a limited time, so as to detect and save the data change values ​​under different load conditions during the pressure detection;

[0026] S3: pre-processing the data information obtained under different load conditions to obtain processed information;

[0027] S4: converting the currently processed information into a detection change map;

[0028] S5: The detection change graph is imported into the evaluation system, so that the evaluation system detects the changes in the detection change graph and makes an evaluation.

[0029] The contact position between the ground-connected wall and the connection structure in S1 is set as a detection surface, and the stability of the current ground-connected wall structure is evaluated by detecting the detection surface.

[0030] The ground-to-wall connection structure in S1 includes a connection box, a connection shaft, and a preset locking pipe for connection.

[0031] Among them, the limited time in S2 includes a first time period, a second time period, and a third time period, and the pressure detection includes a first-level pressure load detection, a second-level pressure load detection, and a third-level pressure load detection. By performing different load detections in different time periods, pressure detection of the structure to be evaluated can be achieved.

[0032] The contact position between the ground-connected wall and the connection structure in S1 is set as a detection surface, and the stability of the current ground-connected wall structure is evaluated by detecting the detection surface.

[0033] The ground-to-wall connection structure in S1 includes a connection box, a connection shaft, and a preset locking pipe for connection.

[0034] Among them, the limited time in S2 includes a first time period, a second time period, and a third time period, and the pressure detection includes a first-level pressure load detection, a second-level pressure load detection, and a third-level pressure load detection. By performing different load detections in different time periods, pressure detection of the structure to be evaluated can be achieved.

[0035] Among them, the detection items in S2 include the soil layer density of the precast soil layer and the internal friction angle of the precast soil layer. According to the internal friction angle of the precast soil layer and a preset formula, the static earth pressure coefficient of the precast soil layer is calculated. According to the soil layer density of the precast soil layer and the static earth pressure coefficient of the precast soil layer.

[0036] In the S1, a plurality of sensors are arranged inside the ground connection wall head, and the ground connection wall data is detected by the sensors and the data changes are recorded.

[0037] Among them, the information preprocessing in S3 includes a first processing unit, a second processing unit, and a third processing unit. The first processing unit is used to calculate the static earth pressure coefficient of the prefabricated soil layer according to the internal friction angle of the prefabricated soil layer and a preset formula. The second processing unit is used to calculate the static earth pressure coefficient of the prefabricated soil layer according to the soil layer weight of the prefabricated soil layer and the static earth pressure coefficient of the prefabricated soil layer. The third processing unit uses different methods to detect the current ground-connected wall joint structure pressure.

[0038] Among them, the information obtained in S2 includes a first vertical reference starting coordinate and a second vertical reference starting coordinate, and the horizontal distance between the first vertical reference starting coordinate and the second vertical reference starting coordinate is a preset multiple of the scale ratio of the thickness of the annular ground-connected wall wall to the thickness of the single ground-connected wall evaluation unit wall.

[0039] In said S4, according to the information obtained in S3, the associations between the information are connected by means of mapping software, so as to form a detection change graph for easy analysis.

[0040] The evaluation system in S5 analyzes the detection change diagram and compares the detection standards to determine the quality of the current detection information, thereby making a judgment on the detection information and obtaining a stability evaluation of the current ground-connected wall structure.

[0041] The working principle and use process of the present invention are as follows: initial information of a structure to be evaluated is obtained, wherein the structure to be evaluated is a connection structure of a current ground-connected wall and the ground-connected walls on both sides of the connection structure; a multi-level pressure detection is performed next to the current structure to be evaluated within a limited time, thereby detecting and saving data change values ​​under different load conditions during the pressure detection; pre-processing the data information under different load conditions obtained by the detection to obtain processed information; making the current processed information into a detection change graph; and pouring the detection change graph into an evaluation system, thereby detecting changes in the detection change graph through the evaluation system to make an evaluation.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for evaluating the stability of a ground-wall joint, characterized in that: The following steps are involved: S1: obtaining initial information of the structure to be evaluated, wherein the structure to be evaluated is the connection structure of the current ground-connected wall and the ground-connected walls on both sides of the connection structure; S2: Perform multi-level pressure detection next to the current structure to be evaluated within a limited time, so as to detect and save the data change values ​​under different load conditions during the pressure detection; S3: pre-processing the data information obtained under different load conditions to obtain processed information; S4: converting the currently processed information into a detection change map; S5: The detection change graph is imported into the evaluation system, so that the evaluation system detects the changes in the detection change graph and makes an evaluation.

2. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: The contact position between the ground-connected wall and the connection structure in S1 is set as a detection surface, and the stability of the current ground-connected wall structure is evaluated by detecting the detection surface.

3. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: The ground-to-wall connection structure in S1 includes a connection box, a connection shaft, and a preset locking pipe for connection.

4. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: The time limit in S2 includes a first time period, a second time period, and a third time period. The pressure detection includes a first-level pressure load detection, a second-level pressure load detection, and a third-level pressure load detection. By performing different load detections in different time periods, pressure detection of the structure to be evaluated can be achieved.

5. The method for evaluating the stability of a ground-to-wall joint according to claim 1, characterized in that: The detection items in S2 include the soil layer density of the precast soil layer and the internal friction angle of the precast soil layer. According to the internal friction angle of the precast soil layer and a preset formula, the static earth pressure coefficient of the precast soil layer is calculated.

6. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: In the S1, a plurality of sensors are arranged inside the ground connection wall head, and the ground connection wall data is detected by the sensors and the data changes are recorded.

7. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: The information preprocessing in S3 includes a first processing unit, a second processing unit, and a third processing unit. The first processing unit is used to calculate the static earth pressure coefficient of the precast soil layer according to the internal friction angle of the precast soil layer and a preset formula. The second processing unit is used to calculate the static earth pressure coefficient of the precast soil layer according to the soil layer weight of the precast soil layer and the static earth pressure coefficient of the precast soil layer. The third processing unit detects the current ground-connected wall joint structure pressure with different 8. The method for evaluating the stability of a ground-to-wall joint according to claim 1, characterized in that: The information acquired in S2 includes a first vertical reference starting coordinate and a second vertical reference starting coordinate, wherein the horizontal distance between the first vertical reference starting coordinate and the second vertical reference starting coordinate is a preset multiple of the scale ratio of the thickness of the annular ground-connected wall wall to the thickness of the single ground-connected wall evaluation unit wall.

9. The method for evaluating the stability of a ground-to-wall joint according to claim 1, characterized in that: In S4, the information obtained in S3 is linked by mapping software to form a detection change graph for easy analysis.

10. The method for evaluating the stability of a ground-wall joint according to claim 1, characterized in that: The evaluation system in S5 analyzes the detection change diagram and compares the detection standards to determine the quality of the current detection information, thereby making a judgment on the detection information and obtaining a stability evaluation of the current ground-connected wall structure.

Images