Who knows what enterprises produce anchor static piles.

I suggest you call 114, I don't know if Ningbo's 114 is linked to enterprises, or convenient services or something!

Ningbo Goodeli Building Technology****.

Tel: +86-574-87346333 +86-574-87340333

Fax: +86-574-56191577

Address: China. No. 42, Xiaowen Lane, Ningbo.

Website: foundation anchor static pile reinforcement.

Uses: Anchor static pile is a construction method formed by combining the later anchor rod and static pile. That is, first dig the pile hole and the anchor hole in the building, plant the anchor rod with structural adhesive, and then install the reaction frame, use the self-weight of the building as the reaction force, and use the jack to press the steel pile or prefabricated pile into the soil section by section.

When the pile pressing force and pressing depth meet the design requirements, the pile is connected with the foundation to achieve the purpose of improving the bearing capacity of the foundation and controlling the settlement of the building. It has the following advantages:

1.Settlement and tilting can be quickly stopped, and additional settlement will not be caused during construction.

2.Pile pressing construction can be carried out in a narrow space, and is suitable for projects that cannot be accessed by large machines.

3.It can be used to underpin the cracked building without stopping production or residents not relocating the workshop.

4.The load transfer process and mechanical performance are clear, and the actual bearing capacity of each pile can be obtained, and the construction quality is reliable.

Process flow: process flow: 1, positioning 2, digging pile hole and drilling anchor hole 3, planting anchor 4, fixed pile frame and jack 5, pile pressing 6, after reaching the design requirements and pouring with the original foundation.

Ningbo doesn't seem to have it, and Sichuan Huayu wants to produce.

The anchor static pile is the reaction force provided by the bolt and the building foundation floor with the help of the bolt, and then through the reaction frame as the force transmission system, the prefabricated pile is squeezed into the soil layer section by section by using the jack installed at the top of the pile, after reaching the design depth and the required bearing capacity, the pile top and the foundation floor are encapsulated with micro-expansion early strength concrete, and the building can be formed as a whole after the concrete is solidified, and the upper load is borne together with the original foundation, and the bearing capacity of the original building foundation is improved. To meet the needs of buildings with additional height or reinforcement. The pile pressing reaction force is provided by the self-weight of the building itself, and the anchor junction is also required to meet a certain pull-out force in order to ensure the smooth progress of the pile pressing construction.

In the construction process, the anchor static pile relies on the bolt anchored to the foundation and the reaction frame formed by the steel beam to provide the reaction force, therefore, the firmness of the anchor anchor to the foundation often determines the design of the pile load. If the bolt pull-out force is too small, and the pile pressing force is relatively large, the bolt is easy to slip, which is not allowed by the construction, therefore, the quality of the design and burial of the pull-out bolt must be paid enough attention.

Usually, the construction of static pile pressing is completed by using a static pile driver with counterweight, while the post-pile pressing technology is implemented on the basis of existing buildings, and large pile pressing machinery cannot be implemented. The use of anchor static pile solves the problem of site limitation very well, but because the anchoring problem of the reaction frame is not solved, its use is limited, for this reason, many units have studied the anchoring problem of anchor and foundation. The General Institute of Architectural Research of the Ministry of Metallurgy, together with the First Metallurgical Construction Company and other units, invented a new technology for anchor bolts anchored with epoxy mortar, laying the foundation for the development of anchor static piles.

During construction, drill holes in the foundation first, and then place anchors, the buried depth is 10 times the diameter of the anchors, and the anchors can be in the form of straight rods, and the ends are upset or welded steel coils. Finally, the epoxy mortar is used as a binder to seal the borehole, and the pile is sealed with concrete on the top of the pile. It is found in practice that a small number of anchors will be necked due to the design pile pressing force exceeding the tensile strength of the anchor, and the anchor rod is not pulled out, so that it can be proved that the anchor rod bonded with epoxy mortar has a large uplift resistance.

In addition, if the bolt hole can be ensured to be dry, sulfur cement can also be used as a binder.

At present, the anchor static pressure technology is insufficient for the site with a large pile pressing depth, in order to meet the needs of increasing the depth of the pile after pressing the pile to improve the bearing capacity, the second construction of Shanghai has invented a utility model static pressure anchor pile reaction device, which solves the defect that the traditional anchor Peibu rod static pile pile pressing depth is small, and the pile pressing force is small, and has a more reasonable structure, the reaction frame is easy to displace, and the construction technology is simple, the construction period is short and the cost is low, especially when the urban travel buildings are dense, It shows its superiority when the range of activity of piling machinery is limited in the construction environment.

In the past, everyone used to use the pile pressing equipment composed of reaction frame and jack, which is relatively old, the safety in the construction process is not enough, and the pile pressing speed is very slow.

At present, there is a new type of anchor static pile driver in the industry, which has the following advantages:

The pile driver is composed of two parts: a hydraulic power pack and a pile pressing frame, and the two parts are connected by split pipe fittings. The pile driver can arrange the wheel to move, which can meet the complex road conditions on the construction site. The new pile driver is fixed on the reserved anchor rod through the base, and the base is leveled with a water leveler before the pile is pressed, so that the pile driver is in a horizontal state, and in the process of clamping the pile, the clamping jaw will automatically adjust the verticality of the pile, and fix the position of each section of the pile, so as to ensure that the connection node of each section of the pile is completed and the connection quality of the pile is guaranteed.

The pile driver can set any pressure control value according to the design requirements to ensure that the final pile pressure of each pile meets the design requirements, and effectively prevent the damage of machinery and original structure caused by excessive pressure.

The new pile driver adopts modern advanced circuit and oil circuit control system, and has a rigorous structural design system, even if it works under high pressure and long-term conditions, there will be no equipment failure or accidents. The new pile driver is fully automated and equipped with wireless remote control operation, which greatly reduces the number of construction personnel and effectively reduces the probability of accidents. The pile pressing rate of the pile pressing equipment is meters, the pile pressing stroke is meters, and a single equipment only needs to be equipped with 3 operators to complete the number of piles pressed in 100 meters per day.

The new bolt static pile driver can construct concrete prefabricated square piles, concrete prestressed pipe piles and steel pipe piles of any specification. The minimum net height requirement for the on-site operation of the pile driver is meters, and the length of the single pile can be set freely according to the on-site floor height. The new bolt static pile driver can not only press piles, but also have the function of pulling piles.

Pressed pile by anchor rod The pile sinking process that uses bolts to press piles into the soil layer in sections. The anchor rod can be a vertical earth anchor or a temporary anchor in the concrete floor and cushion cap. Static pressure method construction is a pile sinking process that presses prefabricated piles into the soil by the static pile driver with the self-weight of the pile driver and the counterweight on the pile frame as a reaction.

It is a 250*250 cement prefabricated pile with an opening of 1500mm

Anchor static pile is a pile sinking construction process, and prestressed pipe pile is a pile structure, and the two are not comparable. The prestressed pipe piles can be sunk into the ground using a bolted pile.

Anchor static pile is a pile sinking process that establishes a fixed point (anchor) on or near the ground, and then uses machinery such as a jack to generate pressure (static pressure) to steadily reduce the distance between the upper end of the upright pile and the ground, and presses the pile into the soil layer in sections.

The prestressed concrete pipe pile is a kind of slender concrete prefabricated component of hollow cylinder, which is mainly composed of a cylindrical pile body, an end plate and a steel ferrule. It gets its name because the steel bar is stretched to produce prestress during the prefabrication of concrete.

Anchor static pile is a pile sinking process, which uses anchors to press prefabricated piles into the soil in sections.

Prestressed pipe piles are a type of prefabricated piles.

Anchor static pile refers to the use of anchor rod anchored in the original foundation to provide the reaction force to implement pile pressing, the pressed pile is generally a small section pile, mainly used for the reinforcement of the foundation. Its advantages are that the machine tools used are simple, easy to operate, the construction does not affect the construction period, can be operated in a small space, the load transfer process and the force performance are clear, the construction is simple, the quality is reliable, the disadvantage is that the cushion cap is left with holes, and the anchor is embedded in a complex manner.

As early as the early 50s of the 20th century, the static pile pressing method began to be used in the coastal areas of China. By the 80s, with the development of pile pressing machinery and the enhancement of environmental awareness, it was further promoted. By the 90s, the pile driver was serialized, and the maximum pile force of 6800kN was introduced, which can apply both prefabricated square piles and prestressed pipe piles.

It is suitable for buildings ranging from multi-storey and mid-rise to high-rise buildings, as well as high-rise buildings and large structures with 20 storeys or more.

To put it simply, it relies on the reaction force provided by the bolt. Push the pile in. It is called a bolt pile.

It is often used in such a situation: the bottom plate of the basement is poured, a pile needs to be driven, an anchor rod is set on the bottom plate, a hole is made in the bottom plate, a pile is put in, a jack is added, and the reaction force provided by the anchor rod is used, after the jack is pressurized, the pile is pressed in, the anchor rod is cut off, the hole on the bottom plate is sealed, and the pile also works together with the bottom plate to become the anchor pile foundation.

1) The pile material can be reinforced concrete or steel hail source;

2) The reinforced concrete pile should be square, and its side length is 200-300mm

3) The length of each section of pile section should be determined according to the construction clearance height and machine conditions, and it is advisable to be;

4) The main reinforcement in the pile should be determined according to the calculation. When the cross-sectional side length of the square pile is 200mm, the reinforcement should not be less than 4 10;When the side length is 250mm, the reinforcement should not be less than 4 12;When the length of the side is 300mm, the reinforcement should not be less than 4 16

5) The concrete strength grade of the pile should not be lower than C30

6) When the pile body is subjected to tensile stress, welded joints should be used. In other cases, it can be connected with sulfur cement joints. When the sulfur cement joint is used, the two ends of the pile joint should be provided with welded steel mesh sheets, one end should be embedded with reinforcement, and the other end should be reserved with reinforcement holes and hoisting holes.

When welding joints are used, embedded connecting iron parts should be provided at both ends of the pile joints.

Compared with hammering, static pile pressing has the advantages of no noise, no vibration, no pollution, and safety, but in saturated soft clay soil areas, pile pressing and piling may produce ultra-static pore water pressure. CBI Zhongda Consulting introduced the following relevant information for the construction process of anchor static piles:

1) Compared with hammering, static pile pressing has the advantages of no noise, no vibration, no pollution, and safety, but in saturated soft clay soil areas, pile pressing and piling may produce ultra-static pore water pressure.

2) It is necessary to do a good job in the drainage work of the construction site to ensure that there is no water accumulation in the site during the pile sinking process, and the construction water and electricity have been connected to the specified places on the construction site.

3) Check piling machinery and equipment, lifting tools, pressure gauges, etc.

4) The installation of the pile driver must be carried out in accordance with the equipment instructions and relevant regulations.

5) Start the mast support cylinder and tilt the mast slightly by 15 degrees so that the prefabricated piles can be inserted.

6) When the pile tip is inserted into the pile position, start the pile press cylinder slightly, when the pile is into the soil to 50 cm, correct the verticality of the pile and the level of the platform again, and then start the pile driver cylinder, the pile is slowly pressed down, and the construction speed potato cherry blossom degree is generally controlled within 2 meters.

7) When the pile pressing force has reached twice the design load or the pile end has reached the bearing layer, the pressure should be stabilized at any time.

8) During pile pressing construction, a special person should be sent or the automatic recording equipment should be turned on to make a record of pile sinking construction.

9) Before the construction of pile sinking, the pile should be tested. The number of test piles shall not be less than two, in order to determine the penetration degree and pile length, and verify whether the pile pressing equipment and pile sinking construction technology and technical measures meet the actual requirements.

The above is the introduction of the construction technology of anchor static pile provided by Zhongda Consulting for construction professionals, and for more knowledge about the terminology of construction and reform, please pay attention to the construction knowledge column of Zhongda Consulting.