A construction technology of hole-forming cast-in-place pile
A construction technique and cast-in-place pile technology, which is applied in sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as poor stability of cast-in-place piles, separation of pile body and pile hole inner wall, etc., to improve stability performance, reduce mixing, improve The effect of friction
Active Publication Date: 2022-02-25
CHINA RAILWAY FIRST GRP CO LTD +1
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Problems solved by technology
[0004] In view of the above-mentioned related technologies, the inventor believes that, after the concrete is solidified by direct grouting in the drilled pile hole, separation between the pile body and the inner wall of the pile hole is likely to occur, resulting in poor stability of the cast-in-place pile.
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[0041] The following is attached Figure 1-2 The application is described in further detail.
[0042] The embodiment of the present application discloses a hole-forming cast-in-situ pile construction equipment. refer to figure 1 and figure 2 , A hole-forming cast-in-situ pile construction equipment includes a frame 1, a lifting assembly 2, a lifting seat 3, a rotating drive assembly 4, a rotating ring 5, a slotting device and a material receiving assembly 9.
[0043] refer to figure 1 , the lifting assembly 2 includes a multistage oil cylinder 21 and a connecting rod 22. In the present embodiment, the multistage oil cylinder 21 is a three-stage oil cylinder. The cylinder body of the multistage oil cylinder 21 is fixedly connected with the frame 1 by screws, and the piston rod of the multistage oil cylinder 21 Fixedly connected with connecting rod 22 by screws, connecting rod 22 vertically stretches in the pile hole, lifting seat 3 is circular, and connecting rod 22 is wel...
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The present application relates to a construction equipment and construction technology for hole-forming cast-in-situ piles, and relates to the field of cast-in-situ pile construction, which includes a machine frame, a lifting seat, a rotating ring and a slotting device, and the lifting seat is vertically aligned with the machine frame is slidably connected, the rotating ring is rotatably connected to the lifting seat, the rotation axis of the lifting seat is vertically set, the slotting device includes a telescopic assembly, a sliding block and a scraper, and the telescopic assembly drives the sliding The movement direction of the sliding block coincides with the diameter of the rotating ring, and the scraper is fixedly connected with the sliding block; during construction, the lifting seat is used to drive the rotating ring to move downward in the pile hole, and the rotating The ring drives the slotting device to rotate in the pile hole to carry out the slotting operation, so as to set up an anti-slip groove in the pile hole, and finally inject grout into the pile hole. This application has the effect of improving the stability of cast-in-place piles.
Description
technical field [0001] The present application relates to the field of cast-in-situ pile construction, in particular to a construction equipment and construction technology for bore-forming cast-in-situ piles. Background technique [0002] Cast-in-situ piles have the advantages of no vibration, no soil extrusion, low noise, and are suitable for use in densely built urban areas during construction, and are widely used in construction. According to different hole-forming techniques, cast-in-situ piles can be divided into cast-in-place piles with dry operation, cast-in-place piles with mud retaining walls, and cast-in-place piles with manual digging. [0003] In the related art, the construction technology of hole-forming cast-in-place pile is: measure pile hole, drill hole, clear hole, lower reinforcement cage, pour concrete; After the drilling is completed, the excess soil on the inner wall of the pile hole is cleaned to the outside of the pile hole, so as to reduce the mixi...
Claims
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IPC IPC(8): E02D5/34E02D15/04
CPCE02D5/34E02D15/04
Inventor 王丹涛李辉张海亮李朋刚樊亚荣林章亮包科峰宇欢平唐志闻
Owner CHINA RAILWAY FIRST GRP CO LTD