The foundation encyclopedia-QiangJin Foundation-第22页

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: 27 Jun

Guangzhou foundation pit supporting construction unit

Guangzhou foundation pit supporting construction - Shanghai strong foundation in most of the domestic provinces and cities with more than one thousand project experience. Shanghai Qiangqiang Foundation Engineering Co., LTD., located at 289 Huixian Road, Jiading District, Shanghai, was established in April 1998 with a registered capital of 200 million yuan. It has the qualification of professional foundation contracting Level 1, Structural design Level 1, geotechnical design Level 2, steel structure construction Level 3 and foreign contracting project.
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: 25 Jun

Foundation pit supporting construction in Shanghai

The main forms of foundation pit supporting construction in Shanghai area are as follows: 1. Steel sheet pile Steel sheet pile is one of the most widely used deep foundation pit supporting structures in Shanghai soft soil base area. Larsen steel sheet piles are commonly used for hot rolled U-section, which can be used to excavate foundation pits with a depth of 5 ~ 10 meters. Because the one-time investment is larger, it is more rented in the form of lease, after use, pull out and return. The types of steel sheet piles used by each construction unit combined with the characteristics of the project are as follows:
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: 23 Jun

Construction technology of three-axis mixing pile

Three-axis mixing pile construction technology is one of the long bored pile, the pile machine has three bored at the same time, the construction of three spiral drill down construction at the same time, is generally used in underground continuous wall method is used, is an effective form of soft foundation treatment, the use of the cement mixing pile machine into the soil and fully mixing, cement and soil produces a series of physical and chemical reaction, Harden the soft soil and improve the strength of the foundation.
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: 21 Jun

Prevention and control measures for quality problems of long auger bored pile

1) Hole wall collapse: hole wall collapse due to poor soil quality of pile position or groundwater seepage. Before excavation, the site soil should be excavated in staggered pile positions, shorten the height of each section and observe the soil looseness at any time. If necessary, the slump hole can be blocked with brick, steel sheet pile and wood pile. The operation process should be compact, leaving no spacing and avoiding slump.
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: 19 Jun

Construction process of long auger bored pile

Long auger bored pile construction process: one, steel into the factory and the second test sampling, two, construction machinery selection, three, positioning measurement, four, hole, five, concrete pump feed pile, six, steel cage production, seven, inserted steel cage construction, eight, construction process record, nine, pile head cleaning, ten, pile foundation detection
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: 17 Jun

What is the long auger pile? Introduction of construction technology of long auger bored pile

Long AUger BORED PILE IS SUITABLE FOR BUILDING FOUNDATION pile and retaining pile of FOUNDATION pit and deep well support. It is suitable for filling soil layer, silt soil layer, sand layer and pebble layer, and also suitable for all kinds of soil layer with underground water. It can be piled under unfavorable geological conditions such as soft soil layer and shifting sand layer. The pile diameter is generally 500mm ~ 800mm.
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: 09 Jun

Construction technology of three - axis cement mixing pile

Three axis cement mixing is a long screw pile machine, at the same time there are three auger drilling, construction at the same time three auger drilling downward construction, the use of mixing pile machine will cement into the soil and fully mixing, cement and soil a series of physical and chemical reactions, so that the soft soil hardening.
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: 07 Jun

Introduction of high pressure rotary jet grouting pile, high pressure rotary jet grouting pile construction technology

High-pressure rotary jet grouting pile is a kind of high-pressure jet grouting method. The grouting pipe with a special nozzle is inserted into the designed soil depth, and then the cement slurry is injected from the nozzle in the form of high-pressure flow to impact and cut the soil. Under the action of high pressure jet flow, the soil is destroyed, and the soil particles are spalling off from the soil layer and mixing with cement slurry to form a mixed slurry.
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: 05 Jun

The importance and function of foundation pit supporting

Foundation pit supporting technology in the current construction plays an important role and significance of a foundation pit engineering is characterized by time of rock engineering, is of great practicality and empirical discipline, along with the development of civil engineering is rapid, and all kinds of construction projects, more and more is also high to the requirement of foundation pit engineering, problems also appear constantly, This forces the engineers to pay attention to the foundation pit engineering, with a rigorous scientific attitude to treat the problem of foundation pit support.
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: 04 Jun

What is high pressure rotary jet pile? Introduction of high pressure rotary jet grouting pile.

High-pressure jet grouting pile is a kind of high-pressure jet grouting method. The grouting pipe with special nozzle is inserted into the designed soil depth, and then the cement slurry is shot out of the nozzle in the form of high-pressure jet to impact and cut the soil. The soil and cement slurry are stirred to form a mixed slurry, which then forms a continuous lap cement plus solid.
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Shanghai QiangJin Foundation Engineering Co., Ltd.

Tel:400-100-2850

Address:No. 289, Huixian Road, Jiading District, Shanghai

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