Pressure type mud-cake-containing soil sample manufacturing equipment
By designing the pressure -type mud -like soil -like production equipment, the problems of high -pressure environment simulation, infiltration depth observation, pore blocking problems and low installation efficiency of existing technologies have achieved more convenient soil sample production and efficient demolition disassembly. Installation process.
Patent Information
- Application Number
- CN202420432379.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-06
AI Technical Summary
When making mud-containing soil samples, it is difficult for the prior art to effectively simulate high-pressure environment, observe mud-skin infiltration depth, avoid hole blockage problems, and simplify the disassembly and assembly process.
Design a kind of stress -type mud -containing soil -like making equipment, including sample components and blocking components. Sample -making components include the base, the sample -making cylinder, the edge ring, the top cover, and the positioning part. The blocking component can be quickly disassembled through fixed blocks, limited parts and trigger parts.
The device can easily monitor the soil sample production process, improve the convenience of operation, and significantly improve the disassembly efficiency through the design of the blocking component.
Smart Images
Figure CN222393874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of soil sample preparation, in particular to a pressure-type mud-skin soil sample preparation device. Background Art
[0002] As a commonly used pile foundation form, bored cast-in-place piles have been widely used in construction projects. When bored cast-in-place piles are used in soft soil areas, in order to ensure the stability of the borehole wall, they need to be used in conjunction with the mud wall protection process. During the drilling process, the mud gradually penetrates into the soil under the slurry pressure and the extrusion of the mixing head, forming a mud skin with high water content and low strength. The existence of the mud skin will seriously weaken the shear force at the pile-soil interface. For this reason, model experiments need to be carried out before engineering construction to quantitatively evaluate the influence of the mud skin on the pile-soil interface strength.
[0003] In order to obtain soil samples containing mud skin that meet the actual construction conditions of bored piles, the following problems need to be solved: 1) High-pressure environment simulation. During the construction of the drilling machine, the squeeze and friction between the drill bit and the hole wall will generate a large squeeze force. Therefore, the infiltration pressure of the mud skin will be as high as 20MPa. It is difficult for traditional rubber ring seals to ensure the sealing effect; 2) Infiltration depth simulation. It is difficult to observe the infiltration of slurry during the test of traditional mud skin infiltration equipment, and it is difficult to produce samples that meet the infiltration depth; 3) Hole plugging problem. During the mud skin production process, finer slurry can easily flow out from the bottom of the sample. Some fine slurry may block the drainage outlet and cause hole plugging problems; 4) Disassembly and assembly problems. In order to ensure the stability of the connection between the top cover and the sample preparation tube, the existing equipment is mostly fastened with at least eight bolts, which is very laborious during disassembly and assembly. Utility Model Content
[0004] Purpose of the utility model: The problem to be solved by the utility model is how to solve the problem existing in the preparation of soil samples containing mud skin.
[0005] Technical solution: The utility model is a pressure-type mud-skin soil sample making equipment, which includes a sample preparation component, including a base, a sample preparation tube, an edge ring, a top cover and a positioning piece, the sample preparation tube is fixed to the top of the base, the edge ring is fixed to the top of the outer side of the sample preparation tube, the top cover is arranged on the top of the sample preparation tube, and the positioning piece is arranged between the edge ring and the top cover; and a sealing component, which is arranged around the top cover and includes a fixed block, a limiting piece and a triggering piece, the fixed block is fixed around the top cover, a first chamber is opened in the middle, the limiting piece is arranged in the first chamber, a second chamber is arranged on the top of the fixed block, and the triggering piece is arranged in the second chamber.
[0006] Furthermore, the sample preparation component of the device also includes a magnetic filter plate, an exhaust hole is provided in the middle of the base, and the magnetic filter plate is placed on the top of the exhaust hole.
[0007] Furthermore, the sample preparation component of the device also includes an observation plate, rectangular holes are opened on both sides of the sample preparation tube, and the observation plate is fixed inside the rectangular holes.
[0008] Furthermore, the sample preparation component of the device also includes a loading device and a pressure monitor. The loading device is arranged in the middle of the top cover, and the pressure monitor is fixed to the bottom of the top cover.
[0009] Furthermore, the positioning member of the device includes a threaded sealing ring, which is fixed to the top of the edge ring, and a sealing groove cooperating with the threaded sealing ring is formed at the bottom of the top cover.
[0010] Furthermore, the positioning member of the device also includes a positioning block, which is fixed around the top of the edge ring, and the bottom of the top cover is provided with a positioning groove that cooperates with the positioning block.
[0011] Furthermore, the limiting member of the device includes an insert block and a push rod, the insert block slides in the first chamber, the edge ring is provided with matching sockets around it, and an inclined groove is provided on the top, the push rod slides in the fixed block, the bottom end of the push rod is located in the inclined groove, and the top end is located in the second chamber.
[0012] Furthermore, the limiting member of the device also includes a fixing plate and a return spring, wherein the fixing plate is fixed to the top of the plug block, and two ends of the return spring are respectively fixed to the fixing plate and the inner wall of the first chamber.
[0013] Furthermore, the trigger member of the device includes a rotating rod and a handle, the rotating rod is rotatably connected in the second chamber, the top rod is located at the bottom of the rotating rod, and the handle is fixed to the end of the rotating rod.
[0014] Furthermore, the trigger member of the device also includes a rectangular plate, through holes are opened on both sides of the inner wall of the second chamber, and the rectangular plate is located in the through holes and at the top of the rotating rod.
[0015] Beneficial effect: Compared with the prior art, the significant advantages of the utility model are: the equipment, through the setting of the sample preparation component, enables the staff to monitor the soil sample preparation process more conveniently, and the operation is more convenient. At the same time, through the setting of the sealing component, the disassembly and assembly efficiency of the device is higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the overall structure diagram of the pressure type mud-skin soil sample preparation equipment;
[0017] Figure 2 This is the overall cross-sectional view of the equipment for making pressure-type mud-skin soil samples;
[0018] Figure 3Equipment for making pressure-type mud-skin soil samples Figure 2 Enlarged view of inner part A;
[0019] Figure 4 A cross-sectional view of the cover assembly of the pressure-type mud-skin soil sample preparation equipment;
[0020] Figure 5 The structural diagram of the positioning parts of the pressure-type mud-skin soil sample making equipment;
[0021] Figure 6 This is the structural diagram of the limiting parts of the pressure-type mud-skin soil sample production equipment. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] Example 1
[0024] Reference Figure 1 and Figure 2 , which is the first embodiment of the utility model, and this embodiment provides a pressure-type soil sample preparation device containing mud skin. The pressure-type soil sample preparation device containing mud skin includes a sample preparation component 100 and a cover component 200. The soil sample is prepared by the sample preparation component 100, and the cover component 200 makes the device more efficient in disassembly and assembly while ensuring a certain stability.
[0025] Specifically, the sample preparation component 100 includes a base 101, a sample preparation tube 102, an edge ring 103, a top cover 104 and a positioning member 105. The sample preparation tube 102 is fixed to the top of the base 101, the edge ring 103 is fixed to the top of the outer side of the sample preparation tube 102, the top cover 104 is arranged on the top of the sample preparation tube 102, and the positioning member 105 is arranged between the edge ring 103 and the top cover 104.
[0026] Four anti-slip seats are fixed at the bottom of the base 101 to make the device more stable when making soil samples. The inner wall of the sample preparation tube 102 is roughened to increase the friction between the material and the inner wall when preparing the soil sample. The edge ring 103 fits with the top cover 104, and the two are positioned and sealed by the positioning piece 105, which improves the installation convenience and improves the sealing effect.
[0027] The cover assembly 200 is arranged around the top cover 104, and includes a fixed block 201, a limit member 202 and a trigger member 203. The fixed block 201 is fixed around the top cover 104, and a first chamber S1 is opened in the middle thereof. The limit member 202 is arranged in the first chamber S1. A second chamber S2 is arranged on the top of the fixed block 201, and the trigger member 203 is arranged in the second chamber S2.
[0028] The fixing block 201 is L-shaped as a whole. The limiting member 202 is used to limit the edge ring 103 and the top cover 104 to replace the traditional connection method of multiple bolts, which greatly improves the convenience of disassembly and assembly. The trigger member 203 is used to control the tightening operation of the limiting member 202 to improve the convenience of operation for the staff.
[0029] Example 2
[0030] Reference Figure 1-Figure 6 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.
[0031] Specifically, the sample preparation component 100 also includes a magnetic filter plate 106 . An exhaust hole M is provided in the middle of the base 101 , and the magnetic filter plate 106 is placed on the top of the exhaust hole M.
[0032] A groove with a larger diameter than the exhaust hole M is provided at the top, and the magnetic filter plate 106 is placed in the groove. It is installed by magnetic attraction, which is convenient for taking and installing. After each soil sample is made, the magnetic filter plate 106 can be taken out for cleaning, thereby avoiding the blockage of the exhaust hole M caused by long-term accumulation of impurities.
[0033] The sample preparation component 100 further includes an observation plate 107 . Rectangular holes K are formed on both sides of the sample preparation tube 102 , and the observation plate 107 is fixed inside the rectangular holes K.
[0034] The observation plate 107 fits perfectly with the inner wall of the sample preparation tube 102 and is made of transparent material, so that construction personnel can monitor the internal conditions of the sample preparation tube 102 during the sample preparation process. A larger groove is provided on the inner side of the rectangular hole K, and the observation plate 107 is fixed in the groove to prevent the observation plate 107 from being ejected during the pressurization operation.
[0035] The sample preparation assembly 100 further includes a loading device 108 and a pressure monitor 109 . The loading device 108 is disposed in the middle of the top cover 104 , and the pressure monitor 109 is fixed to the bottom of the top cover 104 .
[0036] The loading device 108 adopts water pressure plus air pressure, which is a prior art and can be set as needed by those skilled in the art, and will not be elaborated here. The bottom end of the pressure monitor 109 extends into the sample preparation tube 102 to monitor the pressure inside the sample preparation tube 102 in real time to ensure the safety and efficiency of the experiment.
[0037] The positioning member 105 includes a threaded sealing ring 105 a fixed to the top of the edge ring 103 , and a sealing groove P cooperating therewith is formed at the bottom of the top cover 104 .
[0038] The top of the threaded sealing ring 105a is set with regular threads. When the top cover 104 is installed on the edge ring 103, its threads fit with the sealing groove P, thereby further improving the friction between the two. It uses rubber with strong pressure resistance to replace the traditional sealing ring, so that it can perform better sealing effect even in a high-pressure environment.
[0039] The positioning member 105 further includes a positioning block 105 b which is fixed around the top of the edge ring 103 . A positioning groove V cooperating with the positioning block 105 b is formed at the bottom of the top cover 104 .
[0040] At least four positioning blocks 105 b are provided, and the positioning blocks 105 b and the positioning grooves V improve the convenience and accuracy of installing the top cover 104 .
[0041] Example 3
[0042] Reference Figure 1-Figure 6 , which is the third embodiment of the utility model, and this embodiment is based on the first two embodiments.
[0043] Specifically, the limit member 202 includes an insert block 202a and a push rod 202b. The insert block 202a slides in the first chamber S1. The edge ring 103 is provided with matching sockets G all around, and an inclined groove L is provided on the top. The push rod 202b slides in the fixed block 201, with its bottom end located in the inclined groove L and its top end located in the second chamber S2.
[0044] One end of the outer side of the plug block 202a is chamfered so that it can be more conveniently plugged into the socket G. The bottom end of the push rod 202b is chamfered. When it moves downward, the bottom end slides in the inclined groove L, thereby pushing the plug block 202a to move toward the socket G, so that it can be plugged into the socket G to achieve a tightening effect.
[0045] The limiting member 202 further includes a fixing plate 202c and a return spring 202d. The fixing plate 202c is fixed to the top of the insert block 202a. Two ends of the return spring 202d are respectively fixed to the fixing plate 202c and the inner wall of the first chamber S1.
[0046] The fixing plate 202c is rectangular, and a force is applied to the insert block 202a to move into the first chamber S1 through the fixing plate 202c and the return spring 202d, thereby making it easier to return. When the push rod 202b is disengaged from the inclined slot L, the insert block 202a can be disengaged from the socket G.
[0047] The trigger member 203 includes a rotating rod 203a and a handle 203b. The rotating rod 203a is rotatably connected to the second chamber S2. The top rod 202b is located at the bottom of the rotating rod 203a. The handle 203b is fixed to the end of the rotating rod 203a.
[0048] The rotating rod 203a is rotatably connected to the inner wall of the second chamber S2 through an axis. When it is manually pressed downward, the top rod 202b can be pressed downward through the rotating rod 203a. At the same time, the setting of the handle 203b enables the staff to press the rotating rod 203a downward more conveniently.
[0049] The trigger member 203 further includes a rectangular plate 203c. Through holes J are provided on both sides of the inner wall of the second chamber S2. The rectangular plate 203c is located in the through holes J and at the top of the rotating rod 203a.
[0050] The rectangular plate 203c is used to limit the rotating rod 203a. When the staff presses the rotating rod 203a downward to the bottom, the rectangular plate 203c is manually inserted into the through hole J, so that the setting of the rectangular plate 203c can prevent the rotating rod 203a from rotating accidentally during use.
[0051] When in use, the magnetic filter plate 106 is placed on the top of the exhaust hole M, and then an appropriate amount of sand layer and mud are added to the sample preparation tube 102 in turn, and then the top cover 104 is installed correspondingly on the top of the edge ring 103. At this time, the four rotating rods 203a are manually pressed downward in turn, and the top rod 202b is driven by the rotating rod 203a to move downward in the inclined groove L, and the plug block 202a is driven to be inserted into the socket G, and then the rectangular plate 203c is correspondingly inserted into the through hole J, so that the setting of the rectangular plate 203c can prevent the rotating rod 203a from accidentally rotating during use, and the installation of the top cover 104 can be completed. At this time, hydraulic oil can be injected through the loading device 108 to perform the pressure sampling operation.
Claims
1. A pressure type mud-skin soil sample preparation device, characterized in that: include, A sample preparation assembly (100) comprises a base (101), a sample preparation tube (102), an edge ring (103), a top cover (104) and a positioning member (105), wherein the sample preparation tube (102) is fixed to the top of the base (101), the edge ring (103) is fixed to the top of the outer side of the sample preparation tube (102), the top cover (104) is arranged on the top of the sample preparation tube (102), and the positioning member (105) is arranged between the edge ring (103) and the top cover (104); And, a cover assembly (200) is arranged around the top cover (104), comprising a fixed block (201), a limiting member (202) and a trigger member (203); the fixed block (201) is fixed around the top cover (104), a first chamber (S1) is opened in the middle thereof, the limiting member (202) is arranged in the first chamber (S1), a second chamber (S2) is arranged on the top of the fixed block (201), and the trigger member (203) is arranged in the second chamber (S2).
2. The pressure-type mud-skin soil sample preparation equipment according to claim 1, characterized in that: The sample preparation component (100) further comprises a magnetic filter plate (106), a vent hole (M) is provided in the middle of the base (101), and the magnetic filter plate (106) is placed on the top of the vent hole (M).
3. The pressure-type mud-skin soil sample preparation equipment according to claim 2, characterized in that: The sample preparation component (100) further comprises an observation plate (107). Rectangular holes (K) are provided on both sides of the sample preparation tube (102). The observation plate (107) is fixed inside the rectangular holes (K).
4. The pressure-type mud-skin soil sample preparation device according to any one of claims 1, 2 and 3, characterized in that: The sample preparation component (100) further comprises a loading device (108) and a pressure monitor (109), wherein the loading device (108) is arranged in the middle of the top cover (104), and the pressure monitor (109) is fixed to the bottom of the top cover (104).
5. The pressure-type mud-skin soil sample preparation device according to claim 4, characterized in that: The positioning member (105) comprises a threaded sealing ring (105a) which is fixed to the top of the edge ring (103), and a sealing groove (P) cooperating with the threaded sealing ring is formed at the bottom of the top cover (104).
6. The pressure-type mud-skin soil sample preparation device according to claim 5, characterized in that: The positioning member (105) further comprises a positioning block (105b) which is fixed around the top of the edge ring (103), and a positioning groove (V) cooperating with the positioning block is formed at the bottom of the top cover (104).
7. The pressure-type mud-skin soil sample preparation device according to claim 5 or 6, characterized in that: The limiting member (202) comprises an insert block (202a) and a push rod (202b), wherein the insert block (202a) slides in the first chamber (S1), the edge ring (103) is provided with plug holes (G) matching with it on all sides, and an inclined groove (L) is provided on the top, and the push rod (202b) slides in the fixed block (201), with its bottom end located in the inclined groove (L) and its top end located in the second chamber (S2).
8. The pressure-type mud-skin soil sample preparation device according to claim 7, characterized in that: The limiting member (202) further comprises a fixing plate (202c) and a return spring (202d), wherein the fixing plate (202c) is fixed to the top of the insert block (202a), and the two ends of the return spring (202d) are respectively fixed to the fixing plate (202c) and the inner wall of the first chamber (S1).
9. The pressure-type mud-skin soil sample preparation device according to claim 8, characterized in that: The trigger member (203) comprises a rotating rod (203a) and a handle (203b), wherein the rotating rod (203a) is rotatably connected to the second chamber (S2), the top rod (202b) is located at the bottom of the rotating rod (203a), and the handle (203b) is fixed to the end of the rotating rod (203a).
10. The pressure-type mud-skin soil sample preparation device according to claim 9, characterized in that: The trigger member (203) further comprises a rectangular plate (203c), through holes (J) are provided on both sides of the inner wall of the second chamber (S2), and the rectangular plate (203c) is located in the through holes (J) and at the top of the rotating rod (203a).