CN-224213260-U - Roadbed compaction inspection device

Abstract

The utility model provides a roadbed compaction inspection device, which belongs to the technical field of road construction equipment and comprises a walking frame, a rolling mechanism and a soil taking mechanism, wherein the rolling mechanism is arranged to apply a counterweight to rollers in the walking process of the walking frame, so that the compaction degree of the surface layer of a road surface is judged by utilizing the indentation of the rollers, and the number of counterweight parts or the weight of an integral counterweight can be adjusted according to the requirement. Moreover, the soil is taken by the soil taking mechanism to form the pilot hole, so that subjectivity of manual digging of the pilot hole is avoided, and consistency of the pilot hole size is ensured. The soil sampling mechanism samples soil rapidly, and the compaction degree of the inner layer is convenient to obtain. In summary, the roadbed compaction inspection device can improve the roadbed compaction inspection efficiency and the reliability and precision of inspection results.

Inventors

• LIU XIANLIN
• LUO ANMIN
• LI YISHAN
• HAN LINLIN
• WEI CHAOJUN
• LU YIXIN
• LIU JUNYI
• Lv xilin
• LI ANHU
• CHEN CHUAN
• KUANG BO
• LIU GUANGBIN
• TANG ZHENGHUI
• SHAO YU
• LIU FU

Assignees

• 广西交通设计集团有限公司
• 同济大学

Dates

Publication Date

20260508

Application Date

20250523

Claims (10)

1. 1. A subgrade compaction inspection device, comprising: The walking frame is provided with a walking mechanism at the bottom; The rolling mechanism is arranged on the walking frame and is provided with a rolling adjusting part, a counterweight part and a roller, the rolling adjusting part can be lifted and adjusted relative to the walking frame under the action of external force, the roller is rotatably arranged at the bottom of the rolling adjusting part, and the counterweight part is detachably arranged above the rolling adjusting part and is used for pressing down the rolling adjusting part; the soil sampling mechanism is arranged on the walking frame and is used for sampling soil downwards and forming a test hole.
2. 2. The subgrade compaction inspection device according to claim 1, wherein the rolling mechanism is further provided with a reset portion for holding the rolling adjustment portion at an upper end of a lifting stroke in a normal state, and wherein the roller is suspended above a bottom of the traveling mechanism when the rolling adjustment portion is at the upper end of the lifting stroke.
3. 3. The roadbed compaction inspection device according to claim 2, wherein the rolling adjustment portion comprises an installation shaft and a support plate, the installation shaft is vertically arranged on the walking frame in a penetrating mode, the support plate is horizontally arranged at the upper end of the installation shaft, the rolling mechanism is fixedly provided with guide portions on two sides of the installation shaft, the upper ends of the guide portions penetrate through the support plate, and the reset portion is sleeved on the guide portions.
4. 4. A roadbed compaction inspection apparatus according to claim 3, wherein the weight portion is provided with a recess or a hole site through which the guide portion passes.
5. 5. The roadbed compaction inspection device according to claim 1, wherein the rolling mechanism is provided with a plurality of the weight portions, and the upper end face and the lower end face of the weight portions are provided with concave-convex structures matched with each other for realizing lamination placement.
6. 6. The roadbed compaction inspection apparatus according to claim 1, wherein the traveling mechanism is provided with a positioning portion capable of being adjusted up and down, the traveling mechanism having a traveling state and a stopped state, the positioning portion being brought into contact with a ground surface downward when the traveling mechanism is in the stopped state.
7. 7. The subgrade compaction inspection device according to claim 6, wherein a positioning frame is provided on the walking frame, the positioning frame can be horizontally moved and adjusted along a first direction, a pressing inclined surface is provided on a side wall of the positioning portion, and the positioning frame can be abutted to the pressing inclined surface, so that a pressing acting force is applied to the positioning portion.
8. 8. The subgrade compaction inspection device according to claim 7, wherein an elastic member is disposed between said positioning frame and said traveling frame, said elastic member is used for keeping said positioning portion in contact with said positioning portion in a normal state, said traveling mechanism further comprises a connecting frame, and said connecting frame connects all of said positioning portions.
9. 9. The roadbed compaction inspection device according to claim 1, wherein the soil sampling mechanism is provided with a spiral soil sampling device, the spiral soil sampling device is provided with spiral blades, at least part of the spiral blades corresponding to the shaft sections are provided with circumferential blade parts, and the circumferential blade parts can cut off soil blocks in the vertical direction in the process of rotating the spiral soil sampling device.
10. 10. The subgrade compaction test apparatus according to claim 9, wherein said soil sampling mechanism is further provided with a stop rod disposed about said helical blade and movable up and down relative to said helical blade.

Description

Roadbed compaction inspection device Technical Field The utility model belongs to the technical field of road construction equipment, and particularly relates to a roadbed compaction inspection device. Background The use of roadbed and pavement compaction techniques has a great significance for improving the construction quality of roads, which has a decisive influence on the safety and stability of roads after the roads are put into use, so that strict management of the compaction techniques is very important. The improvement of the roadbed and pavement compacting technology has an important influence on the firmness of the pavement at a certain angle. In general, the construction cost of a highway is strictly controlled in the construction process, which is the important point of related staff in working, so that the road surface is generally not very thick in the road paving process, and thus, the strength and stability of the highway cannot be fully mastered. Under such a background, the requirement on the compaction technology of the road base pavement is continuously improved, and the method is the best foundation for ensuring the pavement quality. In addition, the roadbed and pavement compacting technology has a great relationship with the flatness of the pavement, the compacting work is good, and the condition of non-uniform pavement can be effectively corrected, so that the flatness and accessibility of the pavement are sufficiently ensured. The compaction work is performed, so that the road materials are closely connected, gaps are reduced, deformation and fracture of the road construction materials due to impact and soaking of rainwater are reduced to a certain extent, and the stability of the whole road surface is ensured. Therefore, the application of the roadbed and pavement compacting technology has important significance in the process of highway engineering construction, and related staff are required to comprehensively control the technology. In the related prior art, the sand filling method is a main method for measuring compactness on the site of many projects, and the surface is seemingly simple, but the method is often not well mastered in actual operation, is easy to cause large errors, and often causes disputes between quality detection and supervision departments and construction units. The principle of the sand filling method is to replace the volume of the hole with sand of uniform particles. The basic principle is that clean uniform sand with the particle size of 0.30-0.60 mm or 0.25-0.50 mm is utilized, the clean uniform sand freely falls into a test hole from a certain height, the volume of the test hole is measured according to the principle that the unit weight of the uniform sand is unchanged (namely standard sand is used for replacing aggregate in the test hole), and the actual measurement dry density of a sample is calculated according to the water content of the aggregate. During operation, the whole steps generally comprise hole drilling, sand filling, comparison and backfilling, wherein each step is manually carried out, measurement errors are easily caused by different sizes and depths of the hole, the efficiency is not ideal, and the pavement compaction degree cannot be obtained rapidly. Disclosure of utility model The present utility model aims to solve at least one of the above technical problems in the prior art. Therefore, the roadbed compaction inspection device provided by the utility model can be used for rapidly acquiring the compaction degree of the road surface and ensuring the consistency of the test hole size, so that the efficiency and the measurement accuracy are improved. According to an embodiment of the present utility model, a roadbed compaction inspection apparatus includes: The walking frame is provided with a walking mechanism at the bottom; The rolling mechanism is arranged on the walking frame and is provided with a rolling adjusting part, a counterweight part and a roller, the rolling adjusting part can be lifted and adjusted relative to the walking frame under the action of external force, the roller is rotatably arranged at the bottom of the rolling adjusting part, and the counterweight part is detachably arranged above the rolling adjusting part and is used for pressing down the rolling adjusting part; the soil sampling mechanism is arranged on the walking frame and is used for sampling soil downwards and forming a test hole. The roadbed compaction inspection device provided by the embodiment of the utility model has at least the following beneficial effects: according to the roadbed compaction inspection device, the rolling mechanism is arranged, so that the balance weight can be applied to the roller in the walking process of the walking frame, the compaction degree of the surface layer of the road surface is judged by utilizing the indentation of the roller, and the number of the balance weight parts or the weight of the whole balance wei