Pipeline foundation compactness detection device and method

Abstract

The invention discloses a pipeline foundation compactness detection device and method, and is widely applied to the technical field of pipeline foundation detection. The pipeline foundation compactness detection device comprises a test platform, a first fixing ring, a containing bag and a storage device, a positioning part is obliquely arranged at one end of the test platform, the positioning part is used for abutting against a pipeline, a through hole is formed in the test platform in a penetrating mode, and the through hole is located in the end, close to the positioning part, of the test platform; the through hole is used for an operator to tightly attach to the outer wall of a pipeline to excavate a pipeline foundation to form a detection pit, the first fixing ring is arranged on the side, away from the pipeline foundation, of the test platform, the through hole is located in the first fixing ring, and the containing bag is movably installed on the first fixing ring and used for entering the detection pit through the through hole. The storage device is used for storing water or sand so that an operator can inject water or sand into the containing bag. Therefore, the device can be suitable for detecting the compactness of the pipeline foundation at the haunch corner, and the quality of the pipeline foundation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline foundation detection, and in particular to a pipeline foundation density detection device and method. Background Art

[0002] The pipeline foundation refers to the basic structure located under the pipeline to support the pipeline and ensure its stability. The medium-coarse sand backfill foundation is widely used in various pipeline projects such as municipal administration, water conservancy and transportation due to its low cost and wide applicability. Due to the looseness of sand materials, the density of the sand backfill foundation (hereinafter referred to as the sand foundation) seriously affects the quality of the pipeline project, especially the foundation of the lower semi-circular arc part (i.e., the axilla corner) at the bottom of the pipeline, which is a key part of the load-bearing force. However, due to the small space at the axilla corner, it is impossible to use rolling equipment to roll the sand foundation at this part, and it can only rely on manual compaction, making the axilla corner the weakest part in the construction quality. Therefore, it is particularly important that the density of the sand foundation at the axilla corner meets the design requirements.

[0003] At present, the commonly used density detection methods for pipeline foundations are sand filling method or water filling method. The base of the traditional sand filling or water filling method is usually annular, and the water storage cylinder or sand storage cylinder needs to occupy a large leveling area. Due to the small space at the axilla corner, the base cannot enter the axilla corner, and the axilla corner cannot meet the leveling area required to support the water storage cylinder or the sand storage cylinder, resulting in difficulties in the density detection of the backfill sand at the axilla corner, and the actual density at the axilla corner cannot be accurately detected. Therefore, it is urgent to develop a pipeline foundation density detection method suitable for the axilla corner of the pipeline. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a pipeline foundation density detection device, which can be used for pipeline foundation density detection at the axilla corners to improve the quality of the pipeline foundation.

[0005] The present application also proposes a pipeline foundation density detection method, which uses the above-mentioned pipeline foundation density detection device for detection.

[0006] According to the first aspect of the present application, a pipeline foundation density detection device includes:

[0007] A test platform, one end of which is provided with a positioning portion obliquely, the positioning portion being used to abut against a pipeline, the test platform being provided with a through hole, and the through hole being located at one end of the test platform close to the positioning portion, the through hole being used for an operator to dig a test pit for the pipeline foundation by closely adhering to the outer wall of the pipeline;

[0008] a first fixing ring, wherein the first fixing ring is arranged on a side of the test platform away from the pipeline foundation, and the through hole is located in the first fixing ring;

[0009] a containing bag, the containing bag being movably mounted on the first fixing ring, the containing bag being used to enter the detection pit through the through hole;

[0010] The storage container is used to store water or sand so that an operator can fill the containing bag with water or sand.

[0011] The pipeline foundation density detection device according to the embodiment of the present application has at least the following beneficial effects: by obliquely setting a positioning portion at one end of the test platform and using the positioning portion to abut against the pipeline, it is beneficial to place the test platform in contact with the outer wall of the pipeline at the axillary corner of the pipeline foundation; by setting a through hole at one end of the test platform close to the positioning portion, an operator can dig a detection pit on the pipeline foundation close to the outer wall of the pipeline to obtain the quality of the pipeline foundation sample at the axillary corner, and enable the containing bag to enter the detection pit through the through hole when it is installed on the first fixing ring; the operator injects water or sand into the containing bag through the storage device to obtain the volume of the detection pit, and obtains the density of the pipeline foundation at the axillary corner by calculation, thereby realizing the density detection at the axillary corner, which is beneficial to improving the quality of the pipeline foundation.

[0012] According to some embodiments of the present application, the reservoir includes a measuring cup and a syringe, and the measuring cup and the syringe are used to store water respectively.

[0013] According to some embodiments of the present application, the pipeline foundation density detection device also includes a second fixing ring, which is spaced apart from the first fixing ring and has the same size as the first fixing ring.

[0014] According to some embodiments of the present application, the first fixing ring is provided with an exhaust hole connected to the through hole.

[0015] According to some embodiments of the present application, a hole wall on one side of the through hole close to the positioning portion extends in a straight line along the axial direction of the pipe.

[0016] According to some embodiments of the present application, the test platform is a transparent plate.

[0017] According to some embodiments of the present application, the positioning portion extends from the bottom of the test platform in a direction away from the pipeline foundation, the pipeline foundation density detection device also includes a side baffle, the side baffle is connected to the side of the test platform away from the pipeline foundation, the side baffle is located at the edge of the test platform and is enclosed with the positioning portion to form a collection area, and / or the pipeline foundation density detection device also includes a spirit level, which is arranged on the side of the test platform away from the pipeline foundation.

[0018] According to the pipeline foundation density detection method of the second aspect of the present application, the pipeline foundation density detection device as described in the first aspect is used for detection, and the method includes:

[0019] Placing the test platform on a pipeline foundation, with the positioning portion abutting against an outer wall of the pipeline;

[0020] Digging a test pit on the pipeline foundation from the through hole along the outer wall of the pipeline, and weighing the mass of the excavated sample;

[0021] installing the containing bag on the first fixing ring;

[0022] Using the reservoir to inject water or sand into the containing bag to obtain the volume of the detection pit;

[0023] The density of the pipeline foundation is calculated by the mass of the sample and the volume of the detection pit.

[0024] The pipeline foundation density detection method according to the embodiment of the present application has at least the following beneficial effects: it can be applied to the density detection at the axilla corners, thereby improving the quality of the pipeline foundation.

[0025] According to some embodiments of the present application, the reservoir includes a measuring cup and a syringe, the measuring cup and the syringe are respectively used to store water, and the volume of the measuring cup is greater than the volume of the syringe, the pipeline foundation density detection device also includes a second fixing ring, the second fixing ring is spaced apart from the first fixing ring, and the second fixing ring has the same size as the first fixing ring, and the reservoir is used to inject water or sand into the containing bag to obtain the volume of the detection pit, including:

[0026] Using the measuring cup to inject a first volume V1 of water into the containing bag, so that the water level in the containing bag is close to the top of the first fixing ring;

[0027] The syringe is used to inject a second volume V2 of water into the containing bag, so that the water level in the containing bag is flush with the lowest point of the top of the first fixing ring, and V2>V1.

[0028] According to some embodiments of the present application, the step of injecting water or sand into the containing bag using the reservoir to obtain the volume of the detection pit further includes:

[0029] Inject a third volume V3 of water into the second fixing ring using the measuring cup and / or the syringe, so that the water level in the second fixing ring is level with the lowest point of the top of the second fixing ring;

[0030] Calculate the volume V4 of the through hole;

[0031] The volume V of the detection pit = V1 + V2 - (V3 + V4).

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0034] Figure 1 This is a schematic diagram of the structure of the pipeline foundation density detection device disclosed in the embodiment of the present application being placed at the axilla corner of the pipeline;

[0035] Figure 2 It is a front view of the pipeline foundation density detection device disclosed in the embodiment of the present application;

[0036] Figure 3 A top view of a pipeline foundation density detection device disclosed in an embodiment of the present application;

[0037] Figure 4 This is a flow chart of a pipeline foundation density detection method disclosed in an embodiment of the present application.

[0038] Reference numerals:

[0039] 100. Pipeline foundation density detection device; 10. Test platform; 11. Positioning part; 12. Through hole; 20. First fixing ring; 21. Exhaust hole; 30. Receiving bag; 40. Second fixing ring; 50. Side baffle; 60. Level; 200. Pipeline; 300. Pipeline foundation; 301. Detection pit. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0044] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0045] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0046] Please also read Figures 1 to 3In a first aspect, an embodiment of the present application provides a pipeline foundation density detection device 100, comprising a test platform 10, a first fixing ring 20, a containing bag 30 and a storage container (not shown). A positioning portion 11 is obliquely provided at one end of the test platform 10, and the positioning portion 11 is used to abut against the pipeline 200. A through hole 12 is provided through the test platform 10, and the through hole 12 is located at one end of the test platform 10 close to the positioning portion 11. The through hole 12 is used for an operator to dig a detection pit 301 for the pipeline foundation 300 close to the outer wall of the pipeline 200. The first fixing ring 20 is provided on a side of the test platform 10 away from the pipeline foundation 300, and the through hole 12 is located in the first fixing ring 20. The containing bag 30 can be movably mounted on the first fixing ring 20, and the containing bag 30 is used to enter the detection pit 301 through the through hole 12. The storage container is used to store water or sand for the operator to fill the containing bag 30 with water or sand.

[0047] The pipeline foundation density detection device 100 provided in the embodiment of the present application is configured to obliquely set a positioning portion 11 at one end of the test platform 10, and use the positioning portion 11 to abut against the pipeline 200, which is conducive to making the test platform 10 fit the outer wall of the pipeline 200 and be placed at the axillary corner. A through hole 12 is set at one end of the test platform 10 close to the positioning portion 11, so that an operator can dig a detection pit 301 on the pipeline foundation 300 close to the outer wall of the pipeline 200 to obtain the sample quality of the pipeline foundation 300 at the axillary corner, and enable the containing bag 30 to enter the detection pit 301 through the through hole 12 when it is installed on the first fixing ring 20. The operator injects water or sand into the containing bag 30 through the storage device to obtain the volume of the detection pit 301, and obtains the density of the pipeline foundation 300 at the axillary corner by calculation, thereby realizing the density detection of the pipeline foundation at the axillary corner, which is conducive to improving the quality of the pipeline foundation 300.

[0048] In some embodiments, the test platform 10 is a transparent plate, so that it is easy to dig the test pit 301, which is beneficial to the leveling of the pipeline foundation 300, so as to improve the reliability of the density detection.

[0049] Optionally, the material of the test platform 10 may be any one of glass, PVC (Polyvinyl chloride), plastic or acrylic, etc., and may be specifically set according to actual needs, and is not limited here.

[0050] Optionally, the containing bag 30 is made of a transparent material, so that the water level inside the containing bag 30 and the fit between the containing bag 30 and the detection pit 301 can be easily observed, so as to improve the reliability of the density detection.

[0051] In some embodiments, the reservoir includes a measuring cup and a syringe, and the measuring cup and the syringe are respectively used to store water.

[0052] In this way, the operation of injecting water into the containing bag 30 is achieved by the operator holding a measuring cup or a syringe to pour and inject. The measuring cup and the syringe do not need to be placed on the leveled pipe foundation 300, so as to effectively reduce the space occupied by the storage device, so that the pipe foundation density detection device 100 can be used in areas with narrow space, which is further conducive to the density detection at the armpit corners.

[0053] Optionally, the volume of the measuring cup is larger than the volume of the syringe, so that the measuring cup can be used to pour a larger volume of water, so that the water level in the containing bag 30 rises rapidly to near the top of the first fixing ring 20, and then a smaller volume of water is slowly injected through the syringe to ensure that the water level in the containing bag 30 reaches the lowest point of the top of the first fixing ring 20, so as to avoid the overflow of water in the containing bag 30 due to adding too much water, causing data errors.

[0054] Exemplarily, the capacity of the measuring cup is 1 L, and the capacity of the syringe is 10 mL.

[0055] It can be understood that in other embodiments, the reservoir may also be a measuring cup filled with sand, a syringe pump or other hand-held containers.

[0056] In some embodiments, the first fixing ring 20 is provided with an exhaust hole 21 connected to the through hole 12. Thus, when water is injected into the containing bag 30, the air between the containing bag 30 and the detection pit 301 can be exhausted, so that the containing bag 30 is closer to the inner wall of the detection pit 301, which is conducive to improving the accuracy of the volume detection of the detection pit 301, thereby improving the reliability of the density detection.

[0057] Optionally, there may be multiple exhaust holes 21 , which are spaced and evenly arranged in sequence along the circumferential direction of the first fixing ring 20 to facilitate the discharge of gas, so that the containing bag 30 filled with water can be tightly attached to the inner wall of the detection pit 301 .

[0058] Optionally, the hole wall of one side of the through hole 12 close to the positioning portion 11 extends in a straight line along the axial direction of the pipe 200. Thus, the through hole 12 is closer to the outer wall of the pipe 200, which is conducive to the operator digging the detection pit 301 close to the outer wall of the pipe 200, so that the location of the density detection is located at the axillary corner or closer to the axillary corner, so as to improve the accuracy of the density detection at the axillary corner.

[0059] Optionally, the shape of the through hole 12 can be any one of semicircular, semi-elliptical, rectangular, trapezoidal or a combination of rectangular and semicircular, etc., which can be set according to actual needs and is not limited here.

[0060] Optionally, the height of the first fixing ring 20 can be 20 cm, and the distance between the hole wall on one side of the through hole 12 close to the positioning portion 11 and the positioning portion 11 is 10 cm-20 cm, for example, it can be 10 cm, 12 cm, 15 cm, 18 cm or 20 cm, etc., thereby reducing the distance between the through hole 12 and the positioning portion 11 and avoiding structural interference between the first positioning ring and the positioning portion 11.

[0061] In some embodiments, the pipeline foundation density detection device 100 further includes a second fixing ring 40 , which is spaced apart from the first fixing ring 20 , and has the same size as the first fixing ring 20 .

[0062] In this way, by detecting the volume of the second fixing ring 40, the volume of the first fixing ring 20 can be obtained, and the volume of the detection pit 301 is obtained by subtracting the volume of the first fixing ring 20 and the through hole 12 from the volume of the water loaded in the bag 30, which is convenient for calculating the density of the pipeline foundation 300 at the armpit corner.

[0063] In some embodiments, the positioning portion 11 extends from the bottom of the test platform 10 in a direction away from the pipeline foundation 300, so as to position the test platform 10 so that the test platform 10 is close to the outer wall of the pipeline 200, which is beneficial for the through hole 12 to dig the pipeline foundation 300 at the axil corner, and block the movement of sand on the surface of the test platform 10 to collect sand scattered on the surface of the test platform 10 when digging the inspection pit 301, and prevent sand from entering between the test platform 10 and the pipeline 200, so as to ensure that the test platform 10 is set close to the outer wall of the pipeline 200.

[0064] Optionally, the pipeline foundation density detection device 100 further includes a side baffle 50, which is connected to a side of the test platform 10 away from the pipeline foundation 300, and is located at the edge of the test platform 10 and enclosed with the positioning portion 11 to form a collection area. Thus, the movement of sand grains on the surface of the test platform 10 can be blocked to collect sand grains scattered on the surface of the detection platform, thereby improving the accuracy of the sample quality collected when digging the detection pit 301, and further improving the reliability of the density detection.

[0065] Optionally, the side baffle 50 , the positioning portion 11 , and the first fixing ring 20 and the second fixing ring 40 have the same or substantially the same height.

[0066] In some embodiments, the pipeline foundation density detection device 100 further includes a level meter 60, which is disposed on a side of the test platform 10 away from the pipeline foundation 300. The level meter 60 can be used to adjust the level of the test platform 10 so as to level the surface of the pipeline foundation 300, thereby reducing errors and improving the accuracy of density detection.

[0067] In a second aspect, an embodiment of the present application further provides a method for detecting the density of a pipeline foundation 300, which uses the pipeline foundation density detection device 100 described in the first aspect to perform detection.

[0068] It can be understood that since the pipeline foundation 300 density detection method adopts the pipeline foundation density detection device 100 described in the first aspect for detection, the pipeline foundation 300 density detection method has the beneficial effects of the pipeline foundation density detection device 100 described in the first aspect, which will not be repeated here.

[0069] In some embodiments, the method for detecting the density of the pipeline foundation 300 includes the following steps:

[0070] S1 . Place the test platform 10 on the pipeline foundation 300 , with the positioning portion 11 abutting against the outer wall of the pipeline 200 .

[0071] By using the positioning portion 11 to abut against the pipe 200 , it is advantageous for the test platform 10 to fit the outer wall of the pipe 200 and be placed at the axillary corner, thereby realizing the density detection at the axillary corner.

[0072] Optionally, the above step S1 may specifically include the following steps S11-S12:

[0073] S11 , leveling the pipeline foundation 300 on the outer periphery of the pipeline 200 to form a horizontal area, placing the test platform 10 in the horizontal area, and contacting the positioning portion 11 against the outer wall of the pipeline 200 .

[0074] Exemplarily, the area of ​​the horizontal region may be 50 cm*50 cm.

[0075] S12, adjusting the flatness of the horizontal area according to the bubble position of the level 60, so that the level 60 remains in the center position.

[0076] Thereby, the levelness of the test platform 10 can be improved, so as to improve the reliability of the density detection of the pipeline foundation 300.

[0077] S2. Dig a testing pit 301 on the pipeline foundation 300 from the through hole 12 along the outer wall of the pipeline 200, and weigh the mass of the excavated sample.

[0078] Optionally, the detection pit 301 is excavated using a digging spoon, a shovel or a spade, so as to meet the needs of digging a pit and taking soil in a narrow space.

[0079] S3 . Install the containing bag 30 on the first fixing ring 20 .

[0080] Optionally, the bag opening of the containing bag 30 is fixed to the top of the first fixing ring 20 by flanging, which can facilitate the assembly and disassembly of the containing bag 30 and ensure that the maximum water level of the containing bag 30 is higher than or equal to the top of the first fixing ring 20.

[0081] It can be understood that in other embodiments, the containing bag 30 can also be fixed on the first fixing ring 20 by means of glue or hooks.

[0082] S4. Use a storage device to inject water or sand into the containing bag 30 to obtain the volume of the detection pit 301.

[0083] Specifically, it can be known from the foregoing that the storage device includes a measuring cup and a syringe, the measuring cup and the syringe are used to store water respectively, and the volume of the measuring cup is greater than the volume of the syringe, the pipeline foundation density detection device 100 also includes a second fixing ring 40, the second fixing ring 40 is spaced apart from the first fixing ring 20, and the second fixing ring 40 has the same size as the first fixing ring 20, and the above step S4 specifically includes the following steps S41-S45:

[0084] S41 , injecting a first volume V1 of water into the containing bag 30 using a measuring cup, so that the water level in the containing bag 30 is close to the top of the first fixing ring 20 .

[0085] Water is poured into the containing bag 30 through a measuring cup with a larger volume, so that the water level in the containing bag 30 rises rapidly to near the top of the first fixing ring 20, so as to improve the density detection efficiency.

[0086] Optionally, the first fixing ring 20 is provided with an exhaust hole 21 connected to the through hole 12. In the above step S41, the operator slowly injects water into the containing bag 30 with a measuring cup, so that the air between the containing bag 30 and the detection pit 301 is discharged through the exhaust hole 21 during the water injection process, thereby making the containing bag 30 closer to the inner wall of the detection pit 301, which is beneficial to improve the accuracy of the volume detection of the detection pit 301, thereby improving the reliability of the density detection.

[0087] S42 , injecting a second volume V2 of water into the containing bag 30 using a syringe, so that the water level in the containing bag 30 is flush with the lowest point of the top of the first fixing ring 20 , and V2>V1.

[0088] Slowly injecting water into the containing bag 30 using a syringe with a smaller volume can help control the water level in the containing bag 30, improve the accuracy of the water level in the containing bag 30, and avoid overflowing the containing bag 30 due to adding too much water, causing data errors.

[0089] Specifically, the water level in the containing bag 30 mentioned in the above step S41 is close to the top of the first fixing ring 20, which means that the first volume V1 of water is injected into the containing bag 30 through the measuring cup so that the water level in the containing bag 30 rises to the first liquid level. The second liquid level is defined as the height of the water level in the containing bag 30 after the second volume V2 of water is injected into the containing bag 30 through the syringe in the above step S42. The second liquid level is located between the top of the first fixing ring 20 and the first liquid level, and the height of the first liquid level is greater than the height difference between the second liquid level and the first liquid level.

[0090] At this time, V1 and V2 are recorded to obtain the volume from the detection pit 301 to the top of the first fixing ring 20 .

[0091] S43 , inject a third volume V3 of water into the second fixing ring 40 using a measuring cup and / or a syringe, so that the water level in the second fixing ring 40 is level with the lowest point of the top of the second fixing ring 40 .

[0092] Thereby, the volume of the second fixing ring 40 , that is, the volume of the first fixing ring 20 , can be obtained.

[0093] Optionally, the specific water injection steps of the second fixing ring 40 are the same as the water injection steps (S41-S42) of the containing bag 30, and the above step S43 may specifically include the following steps S431-S432:

[0094] S431 , use a measuring cup to inject water into the second fixing ring 40 , so that the water level in the second fixing ring 40 is close to the top of the second fixing ring 40 .

[0095] S432 , injecting water into the second fixing ring 40 with a syringe, so that the water level in the second fixing ring 40 is level with the lowest point of the top of the second fixing ring 40 .

[0096] At this time, the volume of water used by the measuring cup and the syringe is the third volume V3, which is also the capacity of the first fixing ring 20.

[0097] In this way, the water injection operation in the above steps S41-S43 is achieved by the operator hand-held pouring or injection, and the measuring cup and the syringe do not need to be placed on the leveled pipe foundation 300, so as to effectively reduce the occupied space of the storage device and meet the water injection operation in the narrow space, so as to facilitate the density detection at the armpit corner.

[0098] S44 , calculating the volume V4 of the through hole 12 .

[0099] Optionally, the volume V4 of the through hole 12 is calculated according to the size of the second fixing ring 40 and the thickness of the test platform 10 .

[0100] It is understandable that in some embodiments, the volume V4 of the through hole 12 may also be calculated in advance and marked on the test platform 10 .

[0101] It should be noted that there is no order of precedence between the above steps S41-S42 and step S43 and step S44. That is to say, when detecting the density of the pipeline foundation 300, the above steps S41-S42 can be executed first and then step S43 and step S44, or, the above steps S43 or step S44 can be executed first and then steps S41-S42.

[0102] S45. Detect the volume V of the pit 301 = V1 + V2 - (V3 + V4).

[0103] The volume of the detection pit 301 is obtained by subtracting the volume of the first fixing ring 20 and the through hole 12 from the volume from the detection pit 301 to the top of the first fixing ring 20 .

[0104] S5. The density of the pipeline foundation 300 is calculated by the sample mass and the volume of the test pit.

[0105] It can be seen that the method for detecting the density of the pipeline foundation 300 provided in the embodiment of the present application, abuts against the pipeline 200 through the positioning portion 11, so that the test platform 10 is placed at the armpit corner in contact with the outer wall of the pipeline 200, so as to realize the density detection of the pipeline foundation 300 at the armpit corner. At the same time, the operator holds a measuring cup or a syringe to inject water into the containing bag 30 and the second fixing ring 40 and calculates the volume of the detection pit 301, so that the measuring cup and the syringe do not need to be placed on the leveled pipeline foundation 300, so as to effectively reduce the occupied space of the storage device and meet the water injection operation in the narrow space, so as to further facilitate the density detection at the armpit corner and improve the quality of the pipeline foundation 300.

[0106] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A pipeline foundation density detection device, It is characterized in that include: A test platform, one end of which is provided with a positioning portion obliquely, the positioning portion being used to abut against a pipeline, the test platform being provided with a through hole, and the through hole being located at one end of the test platform close to the positioning portion, the through hole being used for an operator to dig a test pit for the pipeline foundation by closely adhering to the outer wall of the pipeline; a first fixing ring, wherein the first fixing ring is arranged on a side of the test platform away from the pipeline foundation, and the through hole is located in the first fixing ring; a containing bag, the containing bag being movably mounted on the first fixing ring, the containing bag being used to enter the detection pit through the through hole; The storage container is used to store water or sand so that an operator can fill the containing bag with water or sand.

2. The pipeline foundation density detection device according to claim 1, It is characterized in that The storage container comprises a measuring cup and a syringe, and the measuring cup and the syringe are used for storing water respectively.

3. The pipeline foundation density detection device according to claim 1, It is characterized in that The pipeline foundation density detection device also includes a second fixing ring, which is spaced apart from the first fixing ring and has the same size as the first fixing ring.

4. The pipeline foundation density detection device according to claim 1, It is characterized in that The first fixing ring is provided with an exhaust hole communicating with the through hole.

5. The pipeline foundation density detection device according to claim 1, It is characterized in that A hole wall on one side of the through hole close to the positioning portion extends in a straight line along the axial direction of the pipe.

6. The pipeline foundation density detection device according to claim 1, It is characterized in that The test platform is a transparent plate.

7. The pipeline foundation density detection device according to claim 1, It is characterized in that The positioning portion extends from the bottom of the test platform in a direction away from the pipeline foundation, the pipeline foundation density detection device also includes a side baffle, the side baffle is connected to the side of the test platform away from the pipeline foundation, the side baffle is located at the edge of the test platform and is enclosed with the positioning portion to form a collection area, and / or the pipeline foundation density detection device also includes a spirit level, which is arranged on the side of the test platform away from the pipeline foundation.

8. A pipeline foundation density detection method, It is characterized in that The pipeline foundation density detection device according to any one of claims 1 to 7 is used for detection, and the method comprises: Placing the test platform on a pipeline foundation, with the positioning portion abutting against an outer wall of the pipeline; Digging a test pit on the pipeline foundation from the through hole along the outer wall of the pipeline, and weighing the mass of the excavated sample; installing the containing bag on the first fixing ring; Using the reservoir to inject water or sand into the containing bag to obtain the volume of the detection pit; The density of the pipeline foundation is calculated by the mass of the sample and the volume of the detection pit.

9. The pipeline foundation density detection method according to claim 8, It is characterized in that The reservoir includes a measuring cup and a syringe, the measuring cup and the syringe are used to store water respectively, and the volume of the measuring cup is greater than the volume of the syringe, the pipeline foundation density detection device also includes a second fixing ring, the second fixing ring is spaced apart from the first fixing ring, and the size of the second fixing ring is consistent with that of the first fixing ring, and the reservoir is used to inject water or sand into the containing bag to obtain the volume of the detection pit, including: Using the measuring cup to inject a first volume V1 of water into the containing bag, so that the water level in the containing bag is close to the top of the first fixing ring; The syringe is used to inject a second volume V2 of water into the containing bag, so that the water level in the containing bag is flush with the lowest point of the top of the first fixing ring, and V2>V1.

10. The pipeline foundation density detection method according to claim 9, It is characterized in that The step of injecting water or sand into the containing bag using the reservoir to obtain the volume of the detection pit further includes: Inject a third volume V3 of water into the second fixing ring using the measuring cup and / or the syringe, so that the water level in the second fixing ring is level with the lowest point of the top of the second fixing ring; Calculate the volume V4 of the through hole; The volume V of the detection pit = V1 + V2 - (V3 + V4).

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