Soft foundation water jetting earth excavation construction technology

Abstract

The invention discloses a soft foundation water jetting earth excavation construction technology. The soft foundation water jetting earth excavation construction technology includes the following steps that first, a foundation pit excavation sideline is measured, and steel sheet piles are arranged around the peripheral sideline for shoring; second, a sludge sucking pond is excavated at the central position of a foundation pit, the depth is properly 3-5m and the width is properly 5-8m; third, a high-pressure water gun is used for scouring a soil body into mud; and fourth, the mud is discharged into a settling pond with a sludge sucking pump, a booster pump and a conveying pipe, and clear water separated out is injected into the high-pressure water gun for recycling. Compared with the prior art, the soft foundation water jetting earth excavation construction technology has the advantages that on one hand, noise in the hydraulic excavation construction process is small; and on the other hand, construction is safe and convenient and construction cost is low.

Description

technical field [0001] The invention relates to the field of earthwork construction, in particular to a soft foundation water flushing method [0002] Earth excavation construction technology. Background technique [0003] With the continuous rise of high-rise buildings in cities in my country, the scale and quantity of foundation pit earthworks are also increasing. Traditional earthwork construction mainly uses manual, excavator or manual excavator for excavation operations, which has the following shortcomings: (1 ) The efficiency of manual excavation is low, and it is also limited by time and weather, and the construction period is long; (2) The excavator has high energy consumption and loud noise, which seriously affects the normal life and study of the surrounding residents; (3) Earthwork transportation is restricted by traffic control, It is often necessary to carry out transportation in the early morning, and the vehicle exhaust and the slag dropped during the transpor...

AI Technical Summary

Problems solved by technology

[0003] With the continuous rise of high-rise buildings in cities in my country, the scale and quantity of foundation pit earthworks are also increasing. Traditional earthwork construction mainly uses manual, excavator or manual excavator for excavation operations, which has the following shortcomings: (1 ) The efficiency of manual excavation is low, and it is also limited by time and weather, and the construction period is long; (2) The excavator has high energy consumption and loud noise, which seriously affects the normal life and study of the surrounding residents; (3) Earthwork transportation is restricted by traffic control, It is often necessary to carry out transportation in the early morning, and the vehicle exhaust and the slag dropped during the transportation process seriously pollute the road and the surrounding environment; (4) When the soil quality of the foundation pit is muddy soil, silt or sandy soil, excavation and transportation will The original soil is disturbed, and there is a risk of landslides and water seepage