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china latest news about Rotary drilling method for limestone cave formations

Rotary drilling method for limestone cave formations

April 3, 2025

1. Characteristics and pore forming risks of limestone cave formations Limestone caves are a common occurrence during construction in mountainous areas of southern China. The bedrock surface of this type of stratum fluctuates greatly due to uneven erosion, with various sizes and shapes of caves. ...
china latest news about Development trend of rotary drilling rig working device: a new era of efficient and low-carbon construction

Development trend of rotary drilling rig working device: a new era of efficient and low-carbon construction

March 21, 2025

Driven by the dual drive of "double carbon" goal and diversified infrastructure demand, the working device of rotary drilling rig is undergoing a leapfrog upgrade from a single function to a multi-dimensional empowerment. As the core carrier of pile foundation engineering, its technical iteration is ...
china latest news about Development trend of rotary drilling rig host

Development trend of rotary drilling rig host

March 13, 2025

As the core equipment in the infrastructure construction, the technical innovation of rotary drilling rig is closely related to the market demand. With the acceleration of urbanization, stricter environmental protection policies and the penetration of intelligent technologies, rotary drilling RIGS ...
china latest news about Development trend of rotary drilling rig construction method

Development trend of rotary drilling rig construction method

March 6, 2025

With the rapid development of world's infrastructure construction and the continuous innovation of construction technology, in more and more foundation construction projects that are restricted by narrow sites, mechanical noise control, mud pollution, and complex geological conditions, rotary ...
china latest news about Comprehensive interpretation of the gravel pile construction method

Comprehensive interpretation of the gravel pile construction method

February 25, 2025

Gravel pile, is a kind of bulk pile, with no bonding strength of gravel (pebble) as the main material, with vibration, impact or water flushing in the weak foundation hole, then gravel (pebble) extrusion into the hole, the formation of large diameter gravel of dense pile, composed of gravel (pebble) ...
china latest news about Analysis and Control Measures of Sedimentation at the Bottom of Rotary Excavated Piles

Analysis and Control Measures of Sedimentation at the Bottom of Rotary Excavated Piles

February 19, 2025

The sediment at the bottom of rotary drilling and grouting piles may occur during multiple stages of construction, such as drilling holes, placing steel cages, and pouring concrete. Analysis suggests that the causes of sediment can be roughly divided into the following categories: 1.1 Collapse of ...
china latest news about How to deal with the deviation hole problem in the construction of rotary digging drill?

How to deal with the deviation hole problem in the construction of rotary digging drill?

February 8, 2025

1.The sharp deviation hole is generally caused by geology. Due to the weathering degree of rock layer, uneven rock distribution, etc., the drill pipe is suddenly stuck when the main roll reaches a certain position in the hole, or the drill pipe suddenly leans to one side, indicating a sudden ...
china latest news about Is cement soil pile reliable as a foundation pit support method?

Is cement soil pile reliable as a foundation pit support method?

January 26, 2025

Cement soil wall is a non mainstream form of support structure, suitable for narrow soil conditions, and not widely used in practical engineering applications.Cement earth walls are generally used in soft soil foundation pits with small depths.Under these conditions, the anchor rod does not have a ...
china latest news about Skills for dealing with several special problems in manual bored pile construction

Skills for dealing with several special problems in manual bored pile construction

January 15, 2025

Manual bored pile construction is convenient, does not require large machinery and equipment, and is cost-effective. Therefore, it is widely used in roads and civil buildings. However, the underground working conditions of bored piles are poor, the environment is harsh, and the labor intensity is ...
china latest news about Two technical methods for improving the bearing capacity of bored piles

Two technical methods for improving the bearing capacity of bored piles

December 26, 2024

At present, the commonly used technical methods to improve the vertical bearing capacity of a single cast-in-place pile include the expansion method and the grouting method after drilling the cast-in-place pile. In the same stratum, the pile end resistance is directly proportional to the pile end ...
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