Crushing and slag removing device for hard soil layer at open caisson cutting edge and construction method thereof

A technology for parts and caissons, which is applied in the field of hard soil layer crushing and slag removal devices at the blade foot of caissons, which can solve the problems of potential safety hazards, difficulty in achieving results in hard soil layers, and inability to accurately control the sinking depth.

Inactive Publication Date: 2019-12-03
CCCC SECOND HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grab method is to use the grab to grab the soil at the center of the bottom of the caisson, but it cannot handle the soil below the caisson blade foot and the partition wall, and can only rely on the blade foot and the soil below the

Method used

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  • Crushing and slag removing device for hard soil layer at open caisson cutting edge and construction method thereof

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Effect test

Embodiment 1

[0073] The construction method of the hard soil layer crushing and slag cleaning device at the blade foot part of the caisson comprises the following steps:

[0074] Step 1: According to the geological conditions of the construction site, select the corresponding reamer head and install it on the reamer.

[0075] Step 2: Fix the rotary part on the inner support frame, then fix the inner support frame at the construction position in a caisson compartment, position the reamer on the inner wall of the caisson through the inner support frame, and start the construction of a station Excavation work.

[0076] Step 3: After selecting the automatic rock breaking mode on the control interface and pressing the initial coordinate positioning button, select the initial excavation target point, and obtain the three-dimensional coordinate information and deflection angle of the winch in the 3D guidance system through the positioning antenna and the directional antenna respectively informat...

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Abstract

The invention discloses a crushing and slag removing device for a hard soil layer at an open caisson cutting edge and a construction method of the device. The device comprises a rotating portion, a reamer frame, a hydraulic system, a control unit, various sensors, a detector and a controller. The reamer frame is fixed below the rotating portion, the bottom end of the reamer frame is detachably connected with a reamer head, the hydraulic system drives the rotating portion and the reamer frame to move, the control unit comprises an antenna arranged above the rotating portion, the various sensorsare respectively arranged on the reamer frame, the detector is arranged on the reamer frame, the controller is connected with the antenna, the sensors, the detector and the hydraulic system, and thecontroller analyzes data obtained by the antenna, the sensors and the detector and controls the hydraulic system to operate according to analysis results. The real-time working position of the reamerhead is obtained through the antenna and the various sensors, it is ensured that the real-time working position is always kept the same as a coordinate position preset in an automatic rock breaking construction program, and therefore digging construction operation in the whole open caisson cutting edge is accurately completed.

Description

technical field [0001] The invention relates to the technical field of caisson sinking construction, in particular to a device for crushing and removing slag at the edge of a caisson and a construction method thereof. Background technique [0002] As a structure for underground space structures or deep foundations of high-rise buildings or deep foundation pit support construction, caissons have their unique scope of engineering application conditions. The caisson sinks by cutting the soil with the blade feet. If the caisson does not have blade feet, it is impossible for the caisson to sink. During caisson sinking construction, blade foot is exactly kind of knife edge, cuts soil under the caisson self-weight effect of blade foot and top. When the blade foot is in the hard rock layer, when the blade foot and the weight of the caisson cannot cut the soil, it is necessary to use mechanical equipment or manually take soil from the inside of the caisson and below the blade foot t...

Claims

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Application Information

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IPC IPC(8): E02D23/00E02D23/08E02F5/20
CPCE02D23/00E02D23/08E02F5/20
Inventor 张鸿杨秀礼张永涛翟世鸿陈鸣程茂林徐杰刘修成管政霖方之遥吴中正华晓涛夏昊孟奎涂同珩朱明清李涛范晨阳陈斌
Owner CCCC SECOND HARBOR ENG
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