CN-121976674-A - Steel structure installation device for coastal soft soil area and construction method

CN121976674ACN 121976674 ACN121976674 ACN 121976674ACN-121976674-A

Abstract

The invention relates to the technical field of construction of coastal soft soil areas, in particular to a steel structure installation device and a construction method for the coastal soft soil areas, wherein the steel structure installation device comprises a vertically arranged cover cylinder, the cover cylinder is provided with a material pressing mechanism for pressing materials, a feeding mechanism for conveying the materials into the cover cylinder, a positioning mechanism for positioning the cover cylinder on the foundation pit, and a scraping mechanism for filling soil into the foundation pit. The invention installs the cover cylinder in the excavated foundation pit, compacts the materials between the clamping plates by controlling the clamping plates to form a stable columnar structure, is convenient for installing the steel structure, drives the screw threads to rotate by driving the motor, can position the cover cylinder in the excavated foundation pit to position the steel structure installation device, can scrape soil in the direction of the foundation pit by driving the helical teeth by means of the second hydraulic cylinder, enables the soil layer to be close to the excavated pit, and can realize reinforcement around the foundation pit by repeated operation.

Inventors

LIU TONG
LI HAIJIANG
ZHANG XIAOFENG
XU YATING
ZHANG SINAN
Yuan Xuqiang
JING WEIJIE

Assignees

中国二十二冶集团有限公司

Dates

Publication Date: 20260505
Application Date: 20260330

Claims (10)

1. A steel structure installation device for a coastal soft soil area is characterized by comprising a vertically arranged cover cylinder (1), wherein a material pressing mechanism (2) for pressing materials, a feeding mechanism (3) for conveying the materials into the cover cylinder (1), a positioning mechanism (4) for positioning the cover cylinder (1) on a foundation pit and a soil scraping mechanism (5) for filling soil into the foundation pit are arranged on the cover cylinder (1).
2. The steel structure installation device for the coastal soft soil area of claim 1, wherein the material pressing mechanism (2) comprises two parallel clamping plates (21) vertically installed in the cover cylinder (1), first hydraulic cylinders (22) are installed on the outer walls of two opposite sides of the cover cylinder (1), and piston rods of the first hydraulic cylinders (22) penetrate through the cover cylinder (1) and are connected with the clamping plates (21).
3. The steel structure installation apparatus for coastal soft soil areas according to claim 2, wherein the length of the clamping plate (21) is greater than the height of the cage (1), and the clamping plate (21) extends downward from the lower end surface of the cage (1) by 8-10cm.
4. The steel structure installation device for the coastal soft soil area of claim 1, wherein the feeding mechanism (3) comprises a material pump (31) installed on the outer wall of the cover cylinder (1), a pressurizing pump (32) is installed on the material pump (31), a material passing pipe (33) is connected to the pressurizing pump (32), and a hose is connected to the discharging end of the material pump (31).
5. The steel structure installation device for the coastal soft soil area of claim 1, wherein the positioning mechanism (4) comprises a supporting plate (41) transversely installed on the outer wall of the cover cylinder (1), a motor (42) is installed on the supporting plate (41), an output shaft of the motor (42) is downwards arranged, a rotating shaft (43) is coaxially connected to the output shaft of the motor (42), and threads (44) are arranged on the outer wall of the rotating shaft (43).
6. The steel structure installation device for coastal soft soil areas according to claim 1, wherein the soil scraping mechanism (5) comprises an angle adjusting bracket (51) installed on the outer wall of the cover cylinder (1), a second hydraulic cylinder (52) is installed at one end, far away from the cover cylinder (1), of the angle adjusting bracket (51), an L-shaped connecting rod (53) is installed at the end of a piston rod of the second hydraulic cylinder (52), a scraping plate (54) is installed at the end of the connecting rod (53), and inclined teeth (55) are installed on the bottom surface of the scraping plate (54).
7. The steel structure installation device for coastal soft soil areas according to claim 6, wherein the bottoms of the helical teeth (55) extend towards the direction close to the second hydraulic cylinder (52), the included angle between the scrapers (54) is 60 degrees, and the helical teeth (55) are in a conical structure.
8. The steel structure installation device for coastal soft soil areas according to claim 6, wherein the angle adjusting bracket (51) comprises a first installation block (511) connected with the cover drum (1) and a second installation block (512) connected with the second hydraulic cylinder (52), a rotating rod (513) is arranged between the first installation block (511) and the second installation block (512), one end of the rotating rod (513) is hinged with the first installation block (511) through a first connecting piece (514), and the other end of the rotating rod (513) is hinged with the second installation block (512) through a second connecting piece (515).
9. The steel structure installation device for the coastal soft soil area of claim 8, wherein the end part of the first connecting piece (514) is provided with a screw in a penetrating way, a plurality of screw holes which are matched with each other are formed in the outer wall of the first installation block (511) around the axis of the first connecting piece (514), the end part of the second connecting piece (515) is provided with a screw in a penetrating way, and a plurality of screw holes which are matched with each other are formed in the outer wall of the second installation block (512) around the axis of the second connecting piece (515).
10. A method of constructing a steel structure installation apparatus for a coastal soft soil region as claimed in any one of claims 1 to 9, comprising the steps of: S1, installing and positioning a steel structure installation device, which specifically comprises the steps of digging a foundation pit firstly when a steel member is installed in a coastal soft soil area, then pressing the installation device into the foundation pit, starting a motor (42), and conveniently positioning and installing the device in the foundation pit through rotation of threads (44); S2, filling materials between the clamping plates (21) and extruding the materials, wherein soil or some materials with increased compactness can be added between the clamping plates (21) through a material pump (31) and a pressurizing pump (32), and the materials are extruded by the clamping plates (21) through the control of a first hydraulic cylinder (22) to further compact the materials; S3, operating the soil scraping mechanism (5) to strengthen the foundation pit, and specifically comprising the steps of controlling the second hydraulic cylinder (52), repeatedly scraping soil on two sides of the foundation pit towards the direction of the foundation pit by using the helical teeth (55), strengthening the foundation pit, forming a cylindrical pile through repeated operation, manufacturing a plurality of piles, and then installing steel members on the pile, so that the stability of installation of the steel members is improved.

Description

Steel structure installation device for coastal soft soil area and construction method Technical Field The invention relates to the technical field of construction of coastal soft soil areas, in particular to a steel structure installation device and a construction method for the coastal soft soil areas. Background The characteristics of high water content, high compressibility and low strength of the coastal soft soil bring core challenges to building construction. The existing industry has the problems of scattered technical accumulation, lack of a special system for cooperative adaptation of core building materials, insufficient performance optimization and fusion of a rapid construction and an enclosure system, and the like, and the traditional construction mode has the problems of more field wet operation, lower prefabrication rate, long construction period, low component assembly precision, leakage of the enclosure system and the like, so that the core requirements of corrosion resistance, green low-carbon emission and the like of a salt spray environment of a building are difficult to meet. The coastal soft soil areas provide serious challenges for engineering construction due to unique geological conditions such as high water content, low bearing capacity, high compressibility and obvious rheological property, and the problems of unstable foundation, large soil disturbance, difficult control of construction precision and the like are often faced when steel structure installation is carried out in the areas. The traditional steel structure installation method depends on large-scale mechanical equipment or manual operation, so that the construction efficiency is low, the steel structure is easily positioned and offset and is unevenly settled due to soft soil fluidity, and even structural instability is caused. In the prior art, some construction devices for soft soil foundations attempt to improve construction conditions by reinforcing the foundation or temporarily supporting the foundation, but these devices often have complex structures and poor adaptability, and are difficult to effectively treat the specificity of coastal soft soil. For example, some devices lack the ability to control local disturbance of soil layers, or cannot finish soil synchronously in grouting reinforcement, resulting in uneven reinforcement effect. In addition, the traditional equipment has low modularization degree, is inconvenient to transport and assemble, and increases the construction difficulty in the severe environment of the coastal region. Disclosure of Invention In order to solve the problems in the prior art, the invention provides a steel structure installation device for a coastal soft soil area and a construction method. The invention provides a steel structure installation device for a coastal soft soil area, which adopts the following technical scheme that the device comprises a vertically arranged cover cylinder, wherein a material pressing mechanism for extruding materials, a feeding mechanism for conveying the materials into the cover cylinder, a positioning mechanism for positioning the cover cylinder on a foundation pit and a soil scraping mechanism for filling soil into the foundation pit are arranged on the cover cylinder. Preferably, the material pressing mechanism comprises two clamping plates which are vertically arranged in the cover cylinder and are arranged in parallel, the outer walls of the two opposite sides of the cover cylinder are respectively provided with a first hydraulic cylinder, and a piston rod of each first hydraulic cylinder penetrates through the cover cylinder and is connected with the clamping plates. Preferably, the length of the clamping plate is larger than the height of the cover cylinder, and the clamping plate extends downwards from the lower end surface of the cover cylinder by 8-10cm. Preferably, the feeding mechanism comprises a material pump arranged on the outer wall of the cover cylinder, a pressurizing pump is arranged on the material pump, a feeding pipe is connected to the pressurizing pump, and a hose is connected to the discharge end of the material pump. Preferably, the positioning mechanism comprises a supporting plate transversely arranged on the outer wall of the cover cylinder, a motor is arranged on the supporting plate, an output shaft of the motor is arranged downwards, a rotating shaft is coaxially connected to the output shaft of the motor, and threads are arranged on the outer wall of the rotating shaft. Preferably, the scraping mechanism comprises an angle adjusting bracket arranged on the outer wall of the cover cylinder, a second hydraulic cylinder is arranged at one end, far away from the cover cylinder, of the angle adjusting bracket, a connecting rod in an L shape is arranged at the end part of a piston rod of the second hydraulic cylinder, a scraping plate is arranged at the end part of the connecting rod, and inclined teeth are arranged on th