The foundation encyclopedia-QiangJin Foundation-第21页

The foundation encyclopedia

: 23 Jul

Selection of treatment method for collapsible loess foundation

The SELECTION OF THE TREATMENT METHOD OF COLLAPSIBLE LOESS FOUNDATION SHOULD be based ON the type OF BUILDING, THE type OF SITE, the thickness OF COLLAPsible loess, the distribution OF COLLAPsible coefficient along the depth, the source of materials and the construction conditions, and through technical and economic analysis, so as to take measures according to local conditions and protect the environment. The common treatment methods of collapsible loess foundation can be selected according to the table.
Details >

: 21 Jul

Foundation treatment method - silt soft soil

Silt soil has the characteristics of very low strength, large compressibility, poor water permeability, large thixotropy and rheological property. In the foundation treatment, there will be low bearing capacity, slow growth of strength, easy and uneven deformation after loading, large deformation rate and long stability time, which will have adverse effects on buildings. Therefore, in the foundation treatment, it is necessary to select appropriate foundation treatment technology for silt soil to ensure the quality of the project. The following are five common methods of silt soft soil foundation treatment:
Details >

: 19 Jul

Principles for the selection of foundation treatment schemes

The foundation treatment scheme selection should follow the following principles: 1, must master enough information; 2. Technical rationality; 3. Feasibility of construction technology; 4. Economy; 5, there should be a superstructure - foundation - foundation interaction concept
Details >

: 17 Jul

Soft foundation treatment

Weakness is refers to the soft soil ground treatment including silt, silt soil, part of the filling soil, and other miscellaneous fill high compressibility of soil, its engineering properties for high natural moisture content, natural void ratio, high compressibility, permeability coefficient, low shear strength of soil, used in bolus layer method, the method, deep mixing method, compaction grouting method, dynamic compaction method, etc.
Details >

: 15 Jul

General provisions for excavation of foundation pit engineering

The construction plan of foundation pit excavation should comprehensively consider engineering geology and hydrogeology conditions, environmental protection requirements, site conditions, foundation pit plane size, excavation depth, support form, construction method and other factors. The highest water level and tide level should also be considered for the foundation pit near water.
Details >

: 11 Jul

Common methods of ground treatment

Foundation treatment generally refers to the artificial treatment of foundation in order to improve the bearing capacity of foundation (soil or rock), or improve its deformation property or permeability property, so as to meet the normal use function and durability requirements of buildings under long-term load.
Details >

: 05 Jul

Design requirements of dynamic compaction foundation treatment

Dynamic compaction foundation treatment design including effective reinforcement depth determination, interval time, consolidation point arrangement, processing range, etc., before construction should be in the construction site representative on the site to select one or several test areas, trial compaction or experimental construction, determine the design parameters.
Details >

: 03 Jul

Treatment of foundation by dynamic compaction

The method of dynamic compaction is a method that the heavy hammer of dozens of tons falls freely from the height to forcefully ram the soil. The high quality heavy hammer falls freely at a certain height and has potential energy. When it falls to the ground, compression wave and shear wave are generated to destroy the soil structure, form a closer connection of soil particles, increase the strength of the foundation, reduce the amount of deformation, improve the anti-liquefaction condition of soil, and eliminate the collapsibility of collapsible loess. Ramming can force the uniformity of the treated soil layer to increase.
Details >

: 01 Jul

Stirring rotary jet foundation treatment technology

The foundation treatment technology of deep cement-soil mixing rotary jet grouting has the advantages of improving the bearing capacity of foundation, controlling the settlement of foundation and reducing the cost of foundation treatment.
Details >

: 01 Jul

Problems should be noted in the case of building and landslide on sloping land

Building on the slope, in addition to the main body of the building, often must also be arranged to ensure the safety of the main body of the project, and the maintenance of the project. The lessons of the failed project more than once warned us, in the arrangement of engineering construction sequence, we should adhere to the principle of maintaining the implementation of the project before; For some dangerous slopes, we should insist on supporting first and then digging, otherwise it will lead to accidents. Try to morning the main body early benefit of the good will, often backfire, once the accident happens, then the disposal of twice the result.
Details >

Shanghai QiangJin Foundation Engineering Co., Ltd.

Tel:400-100-2850

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

Home About us Pile foundation engineering Cases Technology Equipment News

Qr code of public account

Mobile QR code

The foundation encyclopedia