Collapsible loess foundation collapsibility coefficient tester

Abstract

A collapsible loess foundation collapsibility coefficient tester provided by the present invention comprises a main body mechanism, an auxiliary mechanism and a pressurizing mechanism, the main body mechanism comprises a thermotank, the auxiliary mechanism is arranged at the top of the thermotank, the pressurizing mechanism is arranged in the thermotank, the pressurizing mechanism comprises a second telescopic rod, and the second telescopic rod is connected with the auxiliary mechanism. A connecting frame is fixedly mounted at the telescopic end of the second telescopic rod, a pressure sensor is fixedly mounted in the connecting frame, an annular seat is fixedly connected to the bottom of the connecting frame, a permeable stone plate is fixedly mounted at the bottom of the annular seat, and an atomizing nozzle is fixedly mounted in the annular seat; the atomization nozzle is arranged at the top of the water permeable stone plate, the top of the atomization nozzle is fixedly communicated with a water receiving pipe, a fixing frame is fixedly installed in the constant temperature box, a cutting ring is connected to the top of the fixing frame in a clamped mode, and a set of displacement sensors are fixedly installed on the inner wall of the constant temperature box. Manual work is replaced by machinery, the accuracy of measured numerical values is improved, and meanwhile the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil collapsibility coefficient measurement, in particular to a collapsible loess foundation collapsibility coefficient measuring instrument. Background Art

[0002] Loess covers vast areas of northwest my country and the middle reaches of the Yellow River. Loess, a Quaternary sediment found primarily in arid and semi-arid regions, possesses a unique combination of internal composition and external morphology, resulting from its specific formation environment. Its structural characteristics are distinguished by its predominance of silt particles, lack of compaction, large pores, well-developed vertical joints, and richness in soluble salts, setting it apart from other sediments of the same period.

[0003] Due to its unique engineering and structural properties, loess has varying degrees of collapsibility. Because it directly impacts the cost and safety of a project, a collapsibility coefficient must be measured using a measuring instrument before construction.

[0004] However, the existing collapsible loess foundation collapsible coefficient measuring instrument has the following shortcomings:

[0005] 1) The existing technology for measuring the collapsibility coefficient of loess soil is cumbersome and requires a lot of manual intervention. Traditional instruments rely on manual pressure application and manual recording of displacement data, which is prone to human errors (such as uneven pressure loading rate and reading deviation), and a single test takes up to several days.

[0006] 2) The environmental control ability is weak, and the temperature and humidity of the test environment fluctuate too much. For example, if the temperature is too high in summer or too low in winter, it will affect the moisture content of the soil sample and interfere with the measurement of wetting deformation. Summary of the Invention

[0007] The purpose of the present invention is to provide a collapsible loess foundation collapsible coefficient measuring instrument. By setting a pressure mechanism, the second telescopic rod is extended to drive the permeable stone slab to press down, and pressure is applied to a group of samples at a uniform rate. A pressure sensor is used to monitor the pressure value applied by the permeable stone slab to the sample surface when the second telescopic rod is extended. Then, a water connecting pipe is used to connect to an external water source to supply water to the atomizing nozzle, providing an immersion environment for a group of samples. A displacement sensor is used to monitor the deformation of the samples, and electronic components are installed. Machinery is used to replace manual labor to reduce manual intervention, thereby reducing human errors, improving the accuracy of the measured values, and improving the efficiency of the test to solve the problems raised in the above background.

[0008] The technical solution provided by the present invention is: a collapsible loess foundation collapsible coefficient measuring instrument, including a main mechanism, an auxiliary mechanism and a pressure mechanism, the main mechanism includes a constant temperature box, the auxiliary mechanism is arranged on the top of the constant temperature box, the pressure mechanism is arranged inside the constant temperature box, the pressure mechanism includes a second telescopic rod, the telescopic end of the second telescopic rod is fixedly installed with a connecting frame, the interior of the connecting frame is fixedly installed with a pressure sensor, the bottom of the connecting frame is fixedly connected to a ring seat, the bottom of the ring seat is fixedly installed with a permeable stone slab, the interior of the ring seat is fixedly installed with an atomizing nozzle, the atomizing nozzle is arranged on the top of the permeable stone slab, the top of the atomizing nozzle is fixedly connected with a water connecting pipe, the interior of the constant temperature box is fixedly installed with a fixing frame, the top of the fixing frame is clamped with a ring knife, and the inner wall of the constant temperature box is fixedly installed with a displacement sensor.

[0009] Furthermore, the water receiving pipe is inserted into the interior of the ring seat, the outer wall of the water receiving pipe is fixedly sleeved with a flange, the bottom of the permeable stone slab is fixedly installed with a second humidity sensor, the outer wall of the second telescopic rod is fixedly sleeved with a mounting plate, and a group of bolts are inserted into the interior of the mounting plate.

[0010] Furthermore, the main body structure includes a support base, a shock-absorbing pad is fixedly installed on the bottom of the support base, a group of dampers are fixedly installed on the top of the support base, and the outer walls of a group of dampers are each provided with a shock-absorbing spring, and the constant temperature box is fixedly installed on the top of the damper and the shock-absorbing spring.

[0011] Furthermore, a hinge is fixedly installed on one side of the constant temperature box, an isolation door is fixedly installed on one end of the hinge, and the isolation door is snap-connected to the constant temperature box.

[0012] Furthermore, a window is fixedly provided inside the isolation door, a control panel is fixedly installed on the front of the isolation door, a dehumidification tank is provided inside the constant temperature box, and a dehumidification agent is provided inside the dehumidification tank.

[0013] Furthermore, a through hole is opened inside the constant temperature box, a first telescopic rod is inserted through one side of the constant temperature box, a baffle is fixedly installed on the telescopic end of the first telescopic rod, the baffle is arranged inside the dehumidification tank, and the baffle is movably arranged at the bottom of the through hole.

[0014] Furthermore, a temperature sensor and a first humidity sensor are provided through one side of the constant temperature box, and a micro air conditioner is fixedly installed on the back side of the constant temperature box, and the micro air conditioner is connected to the constant temperature box.

[0015] Furthermore, a storage box is provided at the bottom of each of the fixing frames, a group of the storage boxes are movably arranged inside the constant temperature box, and a group of the storage boxes are clamped with a filter plate at the top.

[0016] Furthermore, the auxiliary mechanism includes a drying box and a weighing scale fixedly installed on the top of the constant temperature box, a door of the drying box is hinged on one side, a baking tray and a bottom support are slidably connected inside the drying box, and the bottom support is arranged at the bottom of the baking tray.

[0017] Furthermore, the control panel is respectively connected to the first telescopic rod, the temperature sensor, the first humidity sensor, the miniature air conditioner, the displacement sensor, the drying box, the second telescopic rod, the pressure sensor and the second humidity sensor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides a pressure mechanism, utilizes the extension of the second telescopic rod to drive the permeable stone slab to press down, and applies pressure to a group of samples at a uniform rate. A pressure sensor is used to monitor the pressure value applied by the permeable stone slab to the surface of the sample when the second telescopic rod is extended. Then, a water connecting pipe is used to connect to an external water source to supply water to the atomizing nozzle, providing an immersion environment for the group of samples. A displacement sensor is used to monitor the deformation of the sample. Electronic components are installed, and machinery is used to replace manual labor to reduce manual intervention, thereby reducing human errors, improving the accuracy of the measured values, and improving the efficiency of the test.

[0020] 2. The present invention sets up a main body structure, sets up a constant temperature box, installs a temperature sensor and a first humidity sensor to monitor the temperature and humidity values inside the constant temperature box, and then installs corresponding temperature and humidity adjustment equipment to regulate the temperature and humidity inside the constant temperature box, so that the constant temperature box always maintains a suitable temperature and humidity environment, eliminating the influence of ambient temperature and humidity on the test, and then fixedly installs a shock-absorbing pad on the bottom of the support base, and fixedly installs a group of dampers on the top of the support base, which are used in conjunction with shock-absorbing springs to increase the stability of the constant temperature box during testing, avoid laboratory floor vibration interfering with displacement measurement, and improve the overall environmental adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a stereoscopic diagram of the main structure of a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0022] Figure 2 This is a three-dimensional diagram of the disassembled structure of a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0023] Figure 3 This is a structural stereogram of the main mechanism of a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0024] Figure 4 This is a three-dimensional diagram of the disassembled structure of the main mechanism of a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0025] Figure 5 This is a side view of the disassembled structure of the main mechanism of a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0026] Figure 6 This is a structural stereogram of the auxiliary mechanism in a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0027] Figure 7 The present invention provides a structural stereogram of a pressure mechanism in a collapsible loess foundation collapsible coefficient measuring instrument.

[0028] Figure 8 This is a structural cross-sectional view of a pressure mechanism in a collapsible loess foundation collapsible coefficient measuring instrument of the present invention;

[0029] Figure 9 The present invention is a cross-sectional view of the structure of a collapsible loess foundation collapsible coefficient measuring instrument.

[0030] In the figure: 1. Main body; 101. Support base; 102. Shock-absorbing pad; 103. Damper; 104. Shock-absorbing spring; 105. Constant temperature box; 106. Hinge; 107. Isolation door; 108. Window; 109. Control panel; 110. Dehumidification tank; 111. Dehumidifier; 112. Through hole; 113. First telescopic rod; 114. Baffle; 115. Temperature sensor; 116. First humidity sensor; 117. Mini air conditioner; 118. Fixing bracket; 119. Ring knife; 1 20. Displacement sensor; 121. Storage box; 122. Filter plate; 2. Auxiliary mechanism; 201. Drying box; 202. Weighing scale; 203. Box door; 204. Baking tray; 205. Bottom support; 3. Pressurizing mechanism; 301. Second telescopic rod; 302. Connecting frame; 303. Pressure sensor; 304. Ring seat; 305. Permeable stone slab; 306. Atomizing nozzle; 307. Water connecting pipe; 308. Flange; 309. Second humidity sensor; 310. Mounting plate; 311. Bolt. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with specific embodiments. The accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual drawings. They should not be understood as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "front", "rear", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] Please see the attached Figure 1 -Attached Figure 9 As shown, the present invention provides a technical solution: a collapsible loess foundation collapsible coefficient measuring instrument, including a main mechanism 1, an auxiliary mechanism 2 and a pressure mechanism 3, the auxiliary mechanism 2 is fixedly installed on the top of the main mechanism 1, and the pressure mechanism 3 is arranged inside the main mechanism 1.

[0035] Example 1, according to Figure 7 and Figure 8 As shown, the pressurizing mechanism 3 includes a second telescopic rod 301, the telescopic end of the second telescopic rod 301 is fixedly installed with a connecting frame 302, the interior of the connecting frame 302 is fixedly installed with a pressure sensor 303, the bottom of the connecting frame 302 is fixedly connected to a ring seat 304, the bottom of the ring seat 304 is fixedly installed with a permeable stone plate 305, the interior of the ring seat 304 is fixedly installed with an atomizing nozzle 306, the atomizing nozzle 306 is arranged on the top of the permeable stone plate 305, the top of the atomizing nozzle 306 is fixedly connected to a water receiving pipe 307, the water receiving pipe 307 is inserted through the interior of the ring seat 304, the outer wall of the water receiving pipe 307 is fixedly provided with a flange 308, the bottom of the permeable stone plate 305 is fixedly installed with a second humidity sensor 309, the outer wall of the second telescopic rod 301 is fixedly provided with a mounting plate 310, and a group of bolts 311 are inserted through the interior of the mounting plate 310.

[0036] The effect achieved by the entire embodiment 1 is as follows: the above-mentioned components are inserted through the second telescopic rod 301 and inserted into the top of the constant temperature box 105, the mounting plate 310 is fixedly sleeved on the outer wall of the second telescopic rod 301, and the mounting plate 310 and the constant temperature box 105 are threadedly connected by bolts 311 to fix the second telescopic rod 301, and a flange 308 is fixedly sleeved on the outer wall of the water pipe 307, and the flange 308 is set on the outside of the constant temperature box 105, and the water pipe 307 is connected to an external water source to provide a water source for the atomizing nozzle 306, and the atomizing nozzle 306 is used to evenly spray humidification, and then the second telescopic rod 30 is adjusted. 1, and uses its extension to drive the permeable stone plate 305 to press down. The permeable stone plate 305 is set on the top of a group of samples. The downward pressure of the second telescopic rod 301 is monitored in real time by the pressure sensor 303. At the same time, the water mist sprayed by the atomizing nozzle 306 can penetrate the permeable stone plate 305 and penetrate into the interior of the loess sample, so that the sample is immersed in water, thereby performing water immersion detection. When the second telescopic rod 301 drives the permeable stone plate 305 to press down, the detection end of the second humidity sensor 309 installed at the bottom of the permeable stone plate 305 contacts the top of the sample, which is convenient for monitoring the humidity of the sample and measuring the wetting state of the sample under different immersion humidity.

[0037] Example 2, according to Figure 3-Figure 5 、 Figure 9As shown, the main mechanism 1 includes a support base 101, a shock-absorbing pad 102 is fixedly installed on the bottom of the support base 101, a group of dampers 103 is fixedly installed on the top of the support base 101, the outer walls of the group of dampers 103 are sleeved with shock-absorbing springs 104, and the tops of the group of dampers 103 and the group of shock-absorbing springs 104 are fixedly connected to a constant temperature box 105; a hinge 106 is fixedly installed on one side of the constant temperature box 105, and an isolation door 107 is fixedly installed on one end of the hinge 106, and the isolation door 107 is snap-fitted to the constant temperature box 105; a window 108 is fixedly provided inside the isolation door 107, and a control panel 109 is fixedly installed on the front of the isolation door 107, a dehumidification tank 110 is provided inside the constant temperature box 105, and a dehumidification agent 111 is provided inside the dehumidification tank 110; a through hole 112 is opened through the interior of the constant temperature box 105, and a first telescopic rod 11 is inserted through one side of the constant temperature box 105 3. A baffle 114 is fixedly installed at the telescopic end of the first telescopic rod 113, and the baffle 114 is arranged inside the dehumidification tank 110. The baffle 114 is movably arranged at the bottom of the through hole 112; a temperature sensor 115 and a first humidity sensor 116 are penetrated on one side of the constant temperature box 105, and a miniature air conditioner 117 is fixedly installed on the back of the constant temperature box 105, and the miniature air conditioner 117 is fixedly connected to the constant temperature box 105; a group of fixing frames 118 are fixedly installed inside the constant temperature box 105, and a ring knife 119 is clamped on the top of each group of fixing frames 118. A group of displacement sensors 120 are fixedly installed on the inner wall of the constant temperature box 105, and each group of displacement sensors 120 is respectively arranged on one side of a group of fixing frames 118; a storage box 121 is provided at the bottom of each group of fixing frames 118, and each group of storage boxes 121 is movably arranged inside the constant temperature box 105, and a filter plate 122 is clamped on the top of each group of storage boxes 121.

[0038] The effect achieved by the entire embodiment 2 is as follows: the above-mentioned components are provided with two ring knives 119 of the same size, and the ring knives 119 are used to cut the soil sample. The two ring knives 119 that have collected the soil sample are respectively clamped on the top of a set of fixing frames 118. Two groups of tests are carried out at the same time, one group maintains natural humidity, and the other group is saturated with water and then subjected to a pressure test. The deformation difference between the two groups is compared. A group of displacement sensors 120 are fixedly installed on the inner wall of the constant temperature box 105, and a group of displacement sensors 120 are respectively set on the top of a set of fixing frames 118. On one side, each is used to monitor the deformation degree of the sample. A storage box 121 is set at the bottom of a group of fixed frames 118, and a filter plate 122 is clamped on the top of the storage box 121. The storage box 121 is used to collect the sample that falls after deformation, so as to prevent the sample from falling directly into the interior of the constant temperature box 105, which increases the difficulty of cleaning. By fixing a shock-absorbing pad 102 on the bottom of the support base 101 and fixing a group of dampers 103 on the top of the support base 101, and then using a shock-absorbing spring 104, the constant temperature box 105 is increased during testing. The stability of the constant temperature box 105 is improved to avoid the interference of laboratory floor vibration on the displacement measurement. A hinge 106 is fixedly installed on one side of the constant temperature box 105. An isolation door 107 is fixedly installed on one end of the hinge 106. The isolation door 107 is connected to the constant temperature box 105 to facilitate sealing the constant temperature box 105. A window 108 is fixedly set inside the isolation door 107 to facilitate observation of the detection status of the sample inside the constant temperature box 105. A temperature sensor 115 and a first humidity sensor 116 are set through one side of the constant temperature box 105 to monitor the inside of the constant temperature box 105. The temperature and humidity of the thermostat 105 are monitored, a micro air conditioner 117 is fixedly installed on the back of the thermostat 105 to ensure that the temperature inside the thermostat 105 is at a suitable state, a dehumidifier 111 is placed inside the dehumidifier tank 110, and the position of the baffle 114 is controlled by adjusting the length of the first telescopic rod 113 to block or dredge the through hole 112, thereby utilizing the dehumidifier 111 to dehumidify the interior of the thermostat 105, so that the thermostat 105 always maintains a suitable temperature and humidity environment, eliminating the influence of the ambient temperature and humidity on the test.

[0039] Example 3, according to Figures 1-8As shown, the auxiliary mechanism 2 includes a drying box 201, a weighing scale 202 is fixedly installed on one side of the drying box 201, a door 203 is hingedly connected to one side of the drying box 201, a baking tray 204 and a bottom bracket 205 are slidably connected to the inside of the drying box 201, and the bottom bracket 205 is arranged at the bottom of the baking tray 204; the drying box 201 and the weighing scale 202 are fixedly installed on the top of the constant temperature box 105, the second telescopic rod 301 is inserted into the interior of the constant temperature box 105, the mounting plate 310 is arranged on the top of the constant temperature box 105, and the screw The bolt 311 is threadedly connected to the constant temperature box 105, the permeable stone slab 305 is set on the top of a fixed frame 118, the water pipe 307 is inserted through one side of the constant temperature box 105, the flange 308 is set on the outside of the constant temperature box 105, and the control panel 109 is respectively connected to the first telescopic rod 113, the temperature sensor 115, the first humidity sensor 116, the micro air conditioner 117, the displacement sensor 120, the drying box 201, the second telescopic rod 301, the pressure sensor 303 and the second humidity sensor 309.

[0040] The effects achieved by the entire embodiment 3 are as follows: by cutting an appropriate amount of loess original soil sample, placing the original soil sample on the top of the weighing scale 202, weighing it, and recording the weight value, placing the original soil sample inside the baking tray 204 after weighing, using the drying box 201 to dry the soil sample, recording the weight value again after drying, and calculating the moisture content of the soil sample, and setting a bottom support 205 at the bottom of the baking tray 204 to facilitate the collection of the residue generated during the drying process, thereby reducing the difficulty of cleaning the drying box 201, and weighing the collected residue at the same time, thereby improving the accuracy of the moisture content calculation; setting the drying box 201 and the weighing scale 202 on the top of the constant temperature box 105, installing and fixing the drying box 201 and the weighing scale 202, and then the second telescopic rod 301 The pressure mechanism 3 is inserted through the top of the constant temperature box 105 and is threadedly connected to the mounting plate 310 and the constant temperature box 105 by means of bolts 311. The pressure mechanism 3 is fixedly mounted on the top of the constant temperature box 105, so that the mechanism is used to apply pressure to a group of samples. The control panel 109 is fixedly mounted on the front of the isolation door 107, and the control panel 109 is respectively connected to the first telescopic rod 113, the temperature sensor 115, the first humidity sensor 116, the micro air conditioner 117, the displacement sensor 120, the drying box 201, the second telescopic rod 301, the pressure sensor 303 and the second humidity sensor 309. The control panel 109 is used to receive and obtain monitoring signals, and the above electronic components are controlled, thereby introducing intelligent operation, reducing manual intervention, reducing human errors, and improving operational efficiency.

[0041] The working principle of the entire device is as follows: the device is mainly divided into a main mechanism 1, an auxiliary mechanism 2 and a pressure mechanism 3. The main mechanism 1 is used to measure the collapsibility coefficient of the original loess soil sample, the auxiliary mechanism 2 is used to detect the moisture content of the original loess soil sample, and the pressure mechanism 3 is used to apply pressure to the original loess soil sample at a uniform speed when measuring the collapsibility coefficient.

[0042] When the device is used, first, an appropriate amount of original soil sample of loess is cut, the original soil sample is placed on the top of the weighing scale 202, weighed, and the weight value is recorded. After weighing, the original soil sample is placed inside the baking tray 204, and the drying box 201 is used to dry the soil sample. After drying, the weight value is recorded again, and the moisture content of the soil sample is measured. A bottom support 205 is provided at the bottom of the baking tray 204 to facilitate the collection of the residue generated during the drying process, thereby reducing the difficulty of cleaning the drying box 201. At the same time, the collected residue is weighed to improve the accuracy of the moisture content measurement.

[0043] Secondly, the original soil sample is reshaped and prepared, and the soil sample is cut using two ring knives 119 of the same size. After the cutting is completed, the soil sample is fixed inside the ring knife 119, and the two ring knives 119 that have collected the soil sample are respectively clamped on the top of a group of fixed frames 118 fixedly set inside the constant temperature box 105. Two groups of tests are carried out at the same time, one group maintains natural humidity, and the other group is saturated with water. The deformation difference between the two groups is compared, and a group of displacement sensors 120 are fixedly installed on the inner wall of the constant temperature box 105. A group of displacement sensors 120 are respectively set on one side of a group of fixed frames 118 for monitoring To test the deformation degree of the sample, the displacement sensor 120 uses the laser displacement sensor of the SGI series of Deep Vision Intelligence. It uses the laser triangulation method to achieve non-contact measurement of the side by adjusting the transmission and receiving angles. A storage box 121 is set at the bottom of a set of fixed frames 118, and a filter plate 122 is clamped on the top of the storage box 121. The storage box 121 is used to collect the sample that falls after deformation, so as to prevent the sample from falling directly into the interior of the constant temperature box 105, which increases the difficulty of cleaning. By fixing the shock-absorbing pad 102 on the bottom of the support base 101 and fixing it on the top of the support base 101, the filter plate 122 is fixed on the bottom of the support base 101. A set of dampers 103, in conjunction with shock-absorbing springs 104, increase the stability of the constant temperature box 105 during testing and prevent laboratory floor vibration from interfering with displacement measurement. A hinge 106 is fixedly installed on one side of the constant temperature box 105, and an isolation door 107 is fixedly installed at one end of the hinge 106. The isolation door 107 is configured to be snap-fitted to the constant temperature box 105 to facilitate sealing the constant temperature box 105. A window 108 is fixedly provided inside the isolation door 107 to facilitate observation of the test status of the sample inside the constant temperature box 105. A temperature sensor 115 and a first humidity sensor are provided on one side of the constant temperature box 105. A temperature sensor 116 monitors the temperature and humidity inside the constant temperature box 105. A miniature air conditioner 117 is fixedly installed on the back of the constant temperature box 105 to ensure that the temperature inside the constant temperature box 105 is at an appropriate state. A dehumidifier 111 is placed inside the dehumidification tank 110. By adjusting the length of the first telescopic rod 113 and controlling the position of the baffle 114, the through hole 112 is blocked or unblocked. The dehumidifier 111 is used to dehumidify the interior of the constant temperature box 105, so that the constant temperature box 105 always maintains an appropriate temperature and humidity environment, eliminating the influence of the ambient temperature and humidity on the test;

[0044] Then, keep one group of samples unchanged, set the pressure mechanism 3 on the top of the other group of samples, insert the second telescopic rod 301 through the top of the constant temperature box 105, fix the mounting plate 310 on the outer wall of the second telescopic rod 301, use bolts 311 to thread the mounting plate 310 and the constant temperature box 105, install and fix the second telescopic rod 301, fix the flange 308 on the outer wall of the water pipe 307, set the flange 308 on the outside of the constant temperature box 105, connect the water pipe 307 to the external water source, provide water for the atomizing nozzle 306, use the atomizing nozzle 306 to evenly spray and humidify, and then adjust the length of the second telescopic rod 301. The permeable stone plate 305 is extended to press downward, and the permeable stone plate 305 is set on the top of a group of samples. The pressure of the second telescopic rod 301 pressing downward is monitored in real time by the pressure sensor 303. At the same time, the water mist sprayed by the atomizing nozzle 306 can penetrate the permeable stone plate 305 and penetrate into the interior of the loess sample, so that the sample is immersed in water, thereby performing water immersion detection. When the second telescopic rod 301 drives the permeable stone plate 305 to press downward, the detection end of the second humidity sensor 309 installed at the bottom of the permeable stone plate 305 contacts the top of the sample, which is convenient for monitoring the humidity of the sample and calculating the wet collapse state of the sample under different immersion humidity. The measured value is then substituted into the wet collapse coefficient calculation formula to calculate the wet collapse coefficient.

[0045]

[0046] Finally, a control panel 109 is fixedly installed on the front of the isolation door 107, and the control panel 109 is respectively connected to the first telescopic rod 113, the temperature sensor 115, the first humidity sensor 116, the micro air conditioner 117, the displacement sensor 120, the drying box 201, the second telescopic rod 301, the pressure sensor 303 and the second humidity sensor 309. The control panel 109 is used to receive and obtain monitoring signals, and the above electronic components are controlled, introducing intelligent operation, reducing manual intervention, reducing human errors, and improving operational efficiency.

[0047] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A collapsible loess foundation collapsible coefficient measuring instrument, characterized in that: The invention comprises a main mechanism (1), an auxiliary mechanism (2) and a pressurizing mechanism (3), wherein the main mechanism (1) comprises a thermostatic box (105), the auxiliary mechanism (2) is arranged on the top of the thermostatic box (105), the pressurizing mechanism (5) is arranged inside the thermostatic box (105), the pressurizing mechanism (3) comprises a second telescopic rod (301), a connecting frame (302) is fixedly installed on the telescopic end of the second telescopic rod (301), a pressure sensor (303) is fixedly installed inside the connecting frame (302), and a ring seat is fixedly connected to the bottom of the connecting frame (302). (304), a permeable stone plate (305) is fixedly installed at the bottom of the ring seat (304), an atomizing nozzle (306) is fixedly installed inside the ring seat (304), the atomizing nozzle (306) is arranged on the top of the permeable stone plate (305), the top of the atomizing nozzle (306) is fixedly connected to a water pipe (307), a fixing frame (118) is fixedly installed inside the thermostatic box (105), a ring knife (119) is clamped on the top of the fixing frame (118), and a displacement sensor (120) is fixedly installed on the inner wall of the thermostatic box (105).

2. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: The water receiving pipe (307) is inserted into the interior of the ring seat (304); a flange (308) is fixedly provided on the outer wall of the water receiving pipe (307); a second humidity sensor (309) is fixedly installed on the bottom of the permeable stone slab (305); a mounting plate (310) is fixedly provided on the outer wall of the second telescopic rod (301); and a group of bolts (311) are inserted into the interior of the mounting plate (310).

3. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: The main body mechanism (1) comprises a support base (101), a shock-absorbing pad (102) is fixedly mounted on the bottom of the support base (101), a group of dampers (103) is fixedly mounted on the top of the support base (101), and the outer walls of the group of dampers (103) are each sleeved with a shock-absorbing spring (104), and the constant temperature box (105) is fixedly mounted on the top of the dampers (103) and the shock-absorbing spring (104).

4. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: A hinge (106) is fixedly installed on one side of the thermostatic box (105), an isolation door (107) is fixedly installed on one end of the hinge (106), and the isolation door (107) is snap-connected with the thermostatic box (105).

5. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 4, characterized in that: A window (108) is fixedly provided inside the isolation door (107), a control panel (109) is fixedly installed on the front of the isolation door (107), a dehumidification tank (110) is provided inside the constant temperature box (105), and a dehumidification agent (111) is provided inside the dehumidification tank (110).

6. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 5, characterized in that: A through hole (112) is provided inside the thermostatic box (105), a first telescopic rod (113) is inserted through one side of the thermostatic box (105), a baffle (114) is fixedly installed at the telescopic end of the first telescopic rod (113), the baffle (114) is arranged inside the dehumidification tank (110), and the baffle (114) is movably arranged at the bottom of the through hole (112).

7. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: A temperature sensor (115) and a first humidity sensor (116) are provided through one side of the thermostat (105), and a micro air conditioner (117) is fixedly installed on the back of the thermostat (105), and the micro air conditioner (117) is communicated with the thermostat (105).

8. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: The bottom of each of the fixing frames (118) is provided with a storage box (121), a group of the storage boxes (121) are movably arranged inside the constant temperature box (105), and the tops of each of the storage boxes (121) are clamped with a filter plate (122).

9. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a drying box (201) fixedly mounted on the top of the constant temperature box (105) and a weighing scale (202); a door (203) is hingedly connected to one side of the drying box (201); a baking tray (204) and a bottom support (205) are slidably connected inside the drying box (201); and the bottom support (205) is arranged at the bottom of the baking tray (204).

10. The collapsible loess foundation collapsible coefficient measuring instrument according to claim 9, characterized in that: The control panel (109) is respectively connected to the first telescopic rod (113), the temperature sensor (115), the first humidity sensor (116), the miniature air conditioner (117), the displacement sensor (120), the drying box (201), the second telescopic rod (301), the pressure sensor (303) and the second humidity sensor (309) via signals.

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