Large span foundation pit automatic cover system

An automatic coverage and large-span technology, applied in infrastructure engineering, excavation, construction, etc., can solve the problems of overlay network damage, increased construction costs, secondary pollution of the surrounding environment, etc., to reduce costs, reduce losses, and facilitate construction flexible effects

Pending Publication Date: 2018-11-06
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of the prior art, the overlay net is usually directly covered on the bare soil, and vehicles are required to travel on the overlay net, so that the overlay net will soon be damaged and destroyed, and usually needs to be covered again within a week at the longest. The construction cost is greatly increased, and the damaged covering net also causes secondary pollution to the surrounding environment

Method used

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  • Large span foundation pit automatic cover system
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  • Large span foundation pit automatic cover system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] The construction method of the large-span automatic covering system for the foundation pit includes the following steps:

[0042] Step 1: Excavate the earthwork of the column foundation, and the excavation is positioned outside the range of 2m from the side of the foundation pit or adjusted according to the design instructions of the foundation pit slope; the foundation size is 1m*1m*0.8m (height), and the spacing is 4m

[0043] Step 2: Install the columns and pour the foundation

[0044] Place the I20a column, adjust the verticality, elevation, and align the columns on both sides of the foundation pit, temporarily fix the steel wire rope, pour C30 concrete and carry out watering and maintenance;

[0045] Step 3: Install the track

[0046] Covering system I20a track is welded on the top of the column, the weld seam is 8mm, the track should be perpendicular to the column and straightened;

[0047] Step 4: Install pulleys and wire ropes

[0048] Unscrew the pulley bolt...

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Abstract

The invention discloses a large span foundation pit automatic cover system. The large span foundation pit automatic cover system comprises stand columns longitudinally fixed in stand column foundations, tracks are fixed in the stand columns, rollers are arranged in the tracks, a steel wire rope is fixed between the rollers, and a dense screen is hung above the steel wire rope. Gear motors are installed at the bottoms of the rollers, and the gear motors are connected with a distribution box through a power line. The columns are positioned 2m away from the edges of a foundation pit and are arranged in parallel in a multi-row mode. The large span foundation pit automatic cover system has the advantages of fast construction speed, simple construction equipment and technology, convenient and flexible construction, low project cost and the like, the dense screen hanging on the foundation pit reduces the loss of the dense screen, the cover system adopts an automatic power system to reduce thelabor and greatly reduce the cost, the smooth progress of a project in the dust improvement process is ensured, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to a foundation pit large-span automatic covering system capable of covering bare soil and reducing dust when the span of the foundation pit is less than 120m, during pile foundation, earthwork excavation, and foundation construction. Background technique [0002] With the development of society, especially the advancement of science and technology, the rapid development of social productivity has been greatly promoted; while people are enjoying the abundant material life brought about by social progress, they are also bearing the burden of environmental damage caused by social development. Negative impacts, especially frequent travel in sandstorms and smog weather, have seriously affected the normal development of society and the travel and health of citizens. [0003] Smog, as the name suggests, is fog and haze. But the difference between fog and haze is very big. The aerosol system composed of dust, sulfuric acid, nitric acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/24E02D17/02
CPCE04G21/242E02D17/02
Inventor 刘海明张鹏洲娄永杰何腾李帅杰
Owner SHANGHAI BAOYE GRP CORP
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