Underground diaphragm wall experimental device
By conducting multiple sets of mud comparison experiments in the underground continuous wall experimental device, the problem of time-consuming and costly determination of mud preparation parameters was solved, thereby improving construction quality and efficiency.
Patent Information
- Application Number
- CN202520249920.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In existing technologies, determining the parameters for mud preparation requires theoretical calculations and repeated on-site experiments, which results in significant time and cost consumption and makes it difficult to guarantee construction quality.
Design an experimental device for underground continuous wall, including an experimental frame, a detection component and a mud injection component, which can conduct multiple sets of mud slurry comparison experiments in the experimental tank, and use the detection component to detect the tank wall structure to determine the most suitable mud slurry specifications.
The experimental setup enabled the rapid determination of mud parameters, improving construction quality and efficiency while reducing the time and cost of repeated on-site experiments.
Smart Images
Figure CN223597599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering experimental instruments, and in particular to an experimental device for underground continuous walls. Background Technology
[0002] The diaphragm guide wall is a temporary structure built before the formation of the diaphragm wall. It is crucial for ensuring the accurate positioning and high quality of the diaphragm wall. During construction, the diaphragm guide wall frequently bears static and dynamic loads from the reinforcing cage, pouring pipes, drilling rigs, etc., thus playing a vital role in the diaphragm wall construction. Due to the geological environment of the underground highly permeable silty sand strata, the diaphragm guide wall is prone to collapse during construction. Therefore, it is necessary to prepare mud slurry for wall protection to ensure the stability of the diaphragm guide wall.
[0003] Typically, mud with appropriate viscosity, specific gravity, sand content, and pH value needs to be prepared based on the actual conditions of the high-permeability silty sand strata at the site. In the existing technology, the determination of mud preparation parameters requires staff to perform theoretical calculations and then conduct repeated experiments on site. However, there will be deviations between theoretical calculations, experience, and reality. Moreover, repeated on-site operations require a lot of time and cost, which can easily reduce construction quality and delay the construction progress of the wall-connecting guide wall. Utility Model Content
[0004] The purpose of this invention is to provide an experimental device for underground continuous walls that can conduct multiple sets of mud comparison experiments.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A diaphragm wall experimental device, which can be installed in an experimental tank extending along a first direction, includes:
[0007] The experimental frame includes two side plates spaced apart along the first direction and multiple support plates. The multiple support plates are spaced apart along the vertical direction on the side plates. When the experimental frame is placed in the experimental tank, the adjacent support plates, the side plates, and the tank wall of the experimental tank form a testing chamber. Different specifications of mud can be introduced into the multiple testing chambers, so that the tank wall of the experimental tank can come into contact with the mud of different specifications.
[0008] A detection component is disposed on the experimental rack, and the detection component is capable of performing structural detection on the walls of multiple experimental tanks.
[0009] As preferred, the underground continuous wall experimental device further comprises a mud injection assembly arranged on the experimental frame, the mud injection assembly comprising a mud injection pipe arranged on the side plate, the mud injection pipe being selectively communicated with the plurality of detection chambers for injecting different specifications of the mud into the plurality of detection chambers.
[0010] As preferred, the mud injection pipe comprises a main pipe and a plurality of branch pipes, a plurality of switch valves being arranged on the mud injection pipe, the switch valves being capable of communicating the main pipe with any of the branch pipes, the branch pipes being capable of penetrating the side plate and being respectively communicated with the plurality of detection chambers.
[0011] As preferred, the underground continuous wall experimental device further comprises a protection plate, the mud injection pipe being located between the side plate and the protection plate.
[0012] As preferred, the underground continuous wall experimental device further comprises an isolation assembly, the isolation assembly comprising an isolation plate arranged on the support plate and being capable of moving along a second direction to selectively abut against the tank wall of the experimental tank, the first direction and the second direction being perpendicular in a horizontal plane.
[0013] As preferred, the isolation assembly further comprises a driving member, an output end of the driving member being connected with the isolation plate, the driving member being capable of driving the isolation plate to move along the second direction to abut against the tank wall of the experimental tank.
[0014] As preferred, the isolation plate comprises a first plate and a second plate, the first plate and the second plate being capable of moving close to or away from each other along the second direction to selectively abut against the tank wall of the experimental tank at one end of the first plate and the second plate away from each other.
[0015] As preferred, the one end of the first plate and the second plate away from each other is provided with a sealing inclined surface.
[0016] As preferred, the support plate is provided with a receiving groove and a cleaning groove, the isolation plate being slidingly arranged in the receiving groove, the cleaning groove being arranged at both ends of the receiving groove along the second direction, a cleaning strip being arranged on the tank wall of the cleaning groove, the cleaning strip being in contact with the isolation plate.
[0017] As preferred, the detection assembly comprises a detection head and a detection line connected with each other, the detection line being capable of penetrating the side plate so that the detection head enters the detection chamber to perform structural detection on the tank wall of the experimental tank.
[0018] The beneficial effects of the utility model are as follows:
[0019] The utility model provides a underground continuous wall experimental device can be installed in the experimental tank and carries out contrast experiment to the tank wall of experimental tank, and the experimental tank extends along the first direction setting, and the experimental frame includes two side plates interval setting along the first direction and a plurality of support plates, a plurality of support plates interval setting on the side plate along the vertical direction, when the experimental frame is placed in the experimental tank, a plurality of support plates, side plate and the tank wall of experimental tank surround and form a plurality of detection chamber, can pass into different specifications of slurry in a plurality of detection chambers, so that the tank wall of experimental tank can be contacted with different specifications of slurry respectively, and the detection assembly can carry out structure detection to the tank wall of experimental tank. The staff passes into different slurry in different detection chambers, so that the tank wall of experimental tank and different specifications of slurry react, and then the tank wall of experimental tank contacted with different slurry is detected respectively by detection assembly, realizes that the tank wall of experimental tank carries out contrast experiment with different specifications of slurry simultaneously, and after comparing the detection result, the slurry most suitable for actual wall guide wall can be determined, and it is not necessary to carry out repeated experimental operation on the spot, improves the construction quality and efficiency of subsequent wall guide wall. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structural schematic diagram of underground continuous wall experimental device that the utility model provides;
[0021] Figure 2 It is the front view of underground continuous wall experimental device that the utility model provides;
[0022] Figure 3 It is Figure 2 Sectional view of A in middle;
[0023] Figure 4 It is Figure 3 Local enlarged view of B in middle.
[0024] In the drawing:
[0025] 1, experimental frame; 11, support plate; 111, storage groove; 112, cleaning groove; 113, cleaning strip; 12, side plate; 2, detection assembly; 21, detection head; 22, detection line; 3, mud injection pipe; 31, main pipe; 32, branch pipe; 4, isolation assembly; 41, isolation plate; 411, first plate; 412, second plate; 413, sealing slope; 42, push rod; 5, protection plate. DETAILED DESCRIPTION
[0026] The utility model makes further detailed explanation in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limit the utility model. In addition, it needs to be explained that in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.
[0027] In the description of the utility model, unless another definite provision and limitation, the term "connect", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation.For the ordinary skill in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.
[0028] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.
[0029] In the description of the embodiment, the term "on", "under", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0030] The utility model provides a kind of underground continuous wall experimental device, to solve the technical defects of time and cost consumption in prior art, which is prepared by staff through repeated experimental operation after theoretical calculation when corresponding slurry is prepared according to the actual situation of high-permeable silty sand stratum of actual site.The underground continuous wall experimental device can be installed in experimental tank, and the experimental tank is arranged along the first direction, and the underground continuous wall experimental device can be installed in the experimental tank to carry out comparative experiment on the tank wall of the experimental tank.
[0031] The experimental groove is usually dug before the construction of the continuous wall guide wall to verify the construction process, parameters and applicability of the equipment. In this example, the experimental groove is used to cooperate with the underground continuous wall experimental device to experiment on the groove wall of the experimental groove, and to determine the most suitable mud for the actual continuous wall guide wall. Specifically, the experimental groove can be specifically arranged below the actual groove of the continuous wall guide wall. After the underground continuous wall experimental device experiments on the groove wall of the experimental groove, the mud suitable for the actual continuous wall guide wall is determined, which can be applied to the continuous wall guide wall to ensure the accuracy of the experiment. In addition, the depth of the experimental groove is two-thirds of the depth of the actual groove of the continuous wall guide wall, and the width and length of the experimental groove are half of the width and length of the actual groove of the continuous wall guide wall. The use of a smaller volume experimental groove can reduce construction costs.
[0032] Referring to Figure 1 and Figure 2 , the underground continuous wall experimental device includes an experimental frame 1, the experimental frame 1 includes two side plates 12 arranged at intervals along a first direction and a plurality of support plates 11 arranged at intervals along a vertical direction on the two side plates 12. When the experimental frame 1 is placed in the experimental groove, the adjacent two support plates 11, the side plates 12 and the groove wall of the experimental groove form a detection chamber, so the plurality of support plates 11, the side plates 12 and the groove wall of the experimental groove can form a plurality of detection chambers, and different specifications of mud can be introduced into the plurality of detection chambers, so that the groove wall of the experimental groove can be in contact with different specifications of mud, and the detection assembly 2 can detect the structure of the groove wall of the experimental groove. This underground continuous wall experimental device can realize the comparative experiment of the groove wall of the experimental groove with different specifications of mud at the same time, and the most suitable mud for the actual continuous wall guide wall can be determined after comparing the detection results, without the need for repeated experimental operations on site, which shortens the experimental time and improves the construction quality and efficiency of the subsequent continuous wall guide wall.
[0033] The underground continuous wall experimental device further includes a mud injection assembly arranged on the experimental frame 1, the mud injection assembly includes a mud injection pipe 3 arranged on the side plate 12, and the mud injection pipe 3 can selectively communicate with the plurality of detection chambers for injecting different specifications of mud into the plurality of detection chambers. It should be noted that the different specifications of mud refer to muds with at least one of viscosity, specific gravity, sand content and PH value being different.
[0034] In order to ensure that the detection chamber can be accurately filled with mud, the mud injection pipe 3 comprises a main pipe 31 and a plurality of branch pipes 32, and the mud injection pipe 3 is provided with a switch valve, the switch valve can make the main pipe 31 and any branch pipe 32 communicate, and the branch pipe 32 can pass through the side plate 12 and communicate with a plurality of detection chambers. The switch valve can be arranged on the branch pipe 32 and located at the position close to the main pipe 31, when the switch valve is opened, the main pipe 31 and the branch pipe 32 are communicated and the lower part of the connection between the main pipe 31 and the branch pipe 32 is blocked. One end of the main pipe 31 is provided with a mud inlet, when mud is injected into a certain detection chamber, the switch valve on the branch pipe 32 communicating with the detection chamber is opened, and then the mud is poured from the mud inlet to make the mud enter the detection chamber.
[0035] Specifically, the working principle of the mud injection assembly is as follows: first, the switch valve on the branch pipe 32 communicating with the upper detection chamber is opened, so that the main pipe 31 and the branch pipe 32 are communicated, and the lower part of the connection between the main pipe 31 and the branch pipe 32 is blocked, the worker pours mud from the mud inlet, and the mud enters the upper detection chamber through the main pipe 31 and the branch pipe 32; then the switch valve on the branch pipe 32 communicating with the middle detection chamber is opened, so that the main pipe 31 and the branch pipe 32 are communicated, and the lower part of the connection between the main pipe 31 and the branch pipe 32 is blocked, the worker pours another kind of mud from the mud inlet, and the mud enters the middle detection chamber through the main pipe 31 and the branch pipe 32; finally, the switch valve on the branch pipe 32 communicating with the lower detection chamber is opened, so that the main pipe 31 and the branch pipe 32 are communicated, and the worker pours another kind of mud from the mud inlet, and the mud enters the lower detection chamber through the main pipe 31 and the branch pipe 32.
[0036] It can be understood that, since the switch valve blocks the lower part of the connection between the main pipe 31 and the branch pipe 32, when the switch valve on the branch pipe 32 communicating with the upper detection chamber is opened, the mud will only flow from the main pipe 31 into the branch pipe 32 and will not produce other flow at the connection between the main pipe 31 and the branch pipe 32, that is, the mud will not continue to flow downward along the main pipe 31 when passing through the branch pipe 32, and thus the mud will not stagnate in the main pipe 31, resulting in that when other muds are injected into the middle detection chamber and the lower detection chamber in the subsequent process, the muds will mix in the main pipe 31, and thus the results of the entire experiment will deviate.
[0037] Reference Figure 3 and Figure 4The underground continuous wall experimental device further comprises an isolation assembly 4 for improving the sealing performance of the detection chambers. The isolation assembly 4 comprises an isolation plate 41 arranged on the support plate 11 and capable of moving in a second direction. The isolation plate 41 selectively abuts against the groove wall of the experimental groove. The first direction and the second direction are perpendicular in the horizontal plane. Specifically, the experimental groove extends in the first direction, the isolation plate 41 is capable of moving in the second direction, and the isolation plate 41 abuts against the groove wall of the experimental groove when moving in the second direction. The abutment of the isolation plate 41 against the groove wall of the experimental groove can improve the sealing performance of each detection chamber, thereby avoiding the mixing of the mud in the multiple detection chambers due to the large gap between the experimental rack 1 and the groove wall of the experimental groove, and thus preventing the experimental failure.
[0038] In addition, in order to further ensure that the mud in the multiple detection chambers will not be mixed, when the mud is introduced into the detection chambers, one detection chamber is left empty between the adjacent two detection chambers with mud, thereby forming an isolation area and avoiding the mixing of the mud in the multiple detection chambers.
[0039] The isolation assembly 4 further comprises a driving member fixedly arranged on the support plate 11. The output end of the driving member is connected with the isolation plate 41. The driving member can drive the isolation plate 41 to move in the second direction, so that the isolation plate 41 abuts against the groove wall of the experimental groove. Specifically, the driving member can be a hydraulic driving device. The hydraulic driving device comprises a push rod 42 fixedly connected with the isolation plate 41. After the experimental rack 1 is placed in the experimental groove and before the mud is introduced into the detection chambers, the hydraulic driving device is started. The push rod 42 drives the isolation plate 41 to move in the second direction until the isolation plate 41 abuts against the groove wall of the experimental groove. When the experiment is completed, the hydraulic driving device is started again. The push rod 42 drives the isolation plate 41 to move in the second direction in the opposite direction until the isolation plate 41 is retracted into the support plate 11.
[0040] In order to ensure that the isolation plate 41 can stably move in the second direction, the support plate 11 is internally provided with a receiving groove 111 extending in the second direction. The isolation plate 41 is slidingly arranged in the receiving groove 111. The receiving groove 111 provides a guide for the movement of the isolation plate 41. In addition, when the experiment is completed, the receiving groove 111 can also serve as a storage for the isolation plate 41. Compared with the isolation plate 41 being directly arranged outside the support plate 11, the receiving groove 111 reduces the occupied space.
[0041] Since the experimental frame 1 is placed in the experimental tank, the detection chamber is surrounded by the support plate 11, the side plate 12 and the tank walls on both sides, therefore, the isolation plate 41 needs to abut with the tank walls on both sides when abutting with the experimental tank, specifically, the isolation plate 41 includes a first plate 411 and a second plate 412, the first plate 411 and the second plate 412 can be close or away from each other along the second direction, so that the ends of the first plate 411 and the second plate 412 away from each other are selectively abutted with the tank walls of the experimental tank. In addition, the hydraulic drive device includes two push rods 42 arranged oppositely, the two push rods 42 are respectively fixedly connected with the first plate 411 and the second plate 412, when the hydraulic drive device is started, the two push rods 42 will drive the first plate 411 and the second plate 412 to move close to or away from each other along the second direction.
[0042] Further, the support plate 11 is further provided with a cleaning groove 112, the cleaning groove 112 is arranged at both ends of the receiving groove 111 along the second direction, the tank wall of the cleaning groove 112 is provided with a cleaning strip 113, the cleaning strip 113 can contact the isolation plate 41, and then wipe the residual mud on the isolation plate 41. Specifically, the cleaning strip 113 can be specifically provided with two and located at the upper edge and the lower edge of the tank wall of the cleaning groove 112, and then wipe and clean the upper and lower surfaces of the isolation plate 41, when the experiment is completed, the isolation plate 41 will pass through the cleaning strip 113 for wiping before being retracted into the receiving groove 111, the cleaning strip 113 can scrape off the mud adhered to the isolation plate 41 during the experiment, avoiding that the isolation plate 41 directly adheres to the mud and retracts into the receiving groove 111, causing the receiving groove 111 to be blocked and then affecting the movement of the isolation plate 41 itself, on the other hand, the mud adhered to the isolation plate 41 during the experiment is scraped off, avoiding that the isolation plate 41 adhered to the mud affects the repeated use of the entire underground continuous wall experiment device.
[0043] Further, the ends of the first plate 411 and the second plate 412 away from each other are provided with a sealing slope 413, when the ends of the first plate 411 and the second plate 412 away from each other abut with the tank walls of the experimental tank, the sealing slope 413 will provide a cutting force to make the first plate 411 and the second plate 412 insert into the tank walls of the experimental tank, further improving the sealing performance of the detection chamber.
[0044] When different specifications of mud are introduced into the plurality of detection chambers, the mud will infiltrate the tank wall of the experimental tank to change the internal structure of the tank wall of the experimental tank, and then the detection assembly 2 will detect the structure of the tank wall of the experimental tank contacted with different mud respectively. The detection assembly 2 comprises a detection head 21 and a detection line 22 connected with each other, and the detection line 22 can be arranged through the side plate 12, so that the detection head 21 enters the detection chamber to detect the structure of the tank wall of the experimental tank. Specifically, the detection head 21 can adopt an ultrasonic probe to detect the tiny defects in the wall body, which is efficient and fast, and the structure detection by the ultrasonic probe is a non-destructive detection method, which will not damage the tank wall of the experimental tank. In addition, the detection assembly 2 further comprises a terminal device connected with one end of the detection line 22 away from the detection head 21, and the plurality of detection results detected by the detection head 21 can be transmitted to the terminal device through the detection line 22, so that the terminal device can compare the plurality of detection results, and then determine the mud most suitable for the actual continuous wall guide wall.
[0045] In order to avoid the mud in the detection chamber from leaking from the connection between the detection line 22 and the side plate 12, a sealing ring is arranged on the side plate 12, which can surround the detection line 22. In addition, in order to avoid the detection head 21 being in the mud for a long time, the moisture in the mud will erode the detection head 21, and a layer of waterproof plastic film can be wrapped outside the detection head 21.
[0046] In order to avoid the mud injection assembly and the detection assembly 2 from being affected by external force underground, the underground continuous wall experimental device further comprises a protective plate 5 arranged outside the experimental rack 1 along the first direction and connected with the side plate 12, so as to protect the mud injection assembly and the detection assembly 2 from being affected by external force and affecting the whole experiment.
[0047] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. An underground continuous wall experimental apparatus capable of being installed in an experimental tank, the experimental tank being disposed extending in a first direction, characterized by, The underground continuous wall experimental device comprises: an experimental frame (1) comprising two side plates (12) arranged at intervals along the first direction and a plurality of support plates (11) arranged at intervals along the vertical direction on the side plates (12), when the experimental frame (1) is placed in the experimental tank, adjacent support plates (11), side plates (12) and tank walls of the experimental tank form a detection chamber, different specifications of mud can be introduced into a plurality of detection chambers, so that the tank wall of the experimental tank can be in contact with mud of different specifications; a detection assembly (2) arranged on the experimental frame (1), which can detect the structure of the tank wall of the experimental tank.
2. The diaphragm wall experiment apparatus according to claim 1, wherein The underground continuous wall experimental device further comprises a mud injection assembly arranged on the experimental frame (1), the mud injection assembly comprises a mud injection pipe (3) arranged on the side plate (12), the mud injection pipe (3) can selectively communicate with a plurality of detection chambers for injecting different specifications of mud into a plurality of detection chambers.
3. The diaphragm wall experiment apparatus according to claim 2, wherein The mud injection pipe (3) comprises a main pipe (31) and a plurality of branch pipes (32), a plurality of switch valves are arranged on the mud injection pipe (3), the switch valves can make the main pipe (31) communicate with any branch pipe (32), the branch pipes (32) can pass through the side plate (12) and respectively communicate with a plurality of detection chambers.
4. The diaphragm wall experiment apparatus according to claim 3, wherein The underground continuous wall experimental device further comprises a protective plate (5), and the mud injection pipe (3) is located between the side plate (12) and the protective plate (5).
5. The diaphragm wall experiment apparatus according to claim 1, wherein The underground continuous wall experimental device further comprises an isolation assembly (4), the isolation assembly (4) comprises an isolation plate (41) arranged on the support plate (11) and capable of moving along the second direction to selectively abut against the tank wall of the experimental tank, the first direction and the second direction are perpendicular in the horizontal plane.
6. The diaphragm wall experiment apparatus according to claim 5, wherein The isolation assembly (4) further comprises a driving member, the output end of the driving member is connected with the isolation plate (41), and the driving member can drive the isolation plate (41) to move along the second direction so that the isolation plate (41) abuts against the tank wall of the experimental tank.
7. The diaphragm wall experiment apparatus according to claim 5, wherein The isolation plate (41) comprises a first plate (411) and a second plate (412), the first plate (411) and the second plate (412) can move away from or close to each other along the second direction, so that one end of the first plate (411) and the second plate (412) away from each other selectively abuts against the tank wall of the experimental tank.
8. The diaphragm wall experiment apparatus according to claim 7, wherein The first plate (411) and the second plate (412) are provided with sealing inclined surfaces (413) at one end away from each other.
9. The diaphragm wall experiment apparatus according to claim 5, wherein The support plate (11) is provided with a receiving groove (111) and a cleaning groove (112), the isolation plate (41) is slidingly arranged in the receiving groove (111), the cleaning groove (112) is arranged at both ends of the receiving groove (111) along the second direction, and a cleaning strip (113) is arranged on the groove wall of the cleaning groove (112) and in contact with the isolation plate (41).
10. The diaphragm wall experiment apparatus according to claim 1, wherein The detection assembly (2) comprises a detection head (21) and a detection line (22) connected with each other, and the detection line (22) can pass through the side plate (12) so that the detection head (21) enters the detection chamber to detect the structure of the groove wall of the experimental groove.