News

Long spiral bored pile

by admin on 24-04-26

Long spiral drilling pumping super fluid concrete rear reinforced cage technology is evolved by the Japanese CIP engineering method, it is different from ordinary drilling pile, it adopts special long spiral drilling machine drill to the predetermined depth, through the hole, to the pile top, and...

Causes of Sludge Generation in Rotary Drilling Piles and Clearing Hole Treatment

by admin on 24-04-19

Rotary drilling piles, also known as bored piles, are a common foundation construction method used in civil engineering projects. During the construction process, a significant amount of sludge is generated as a byproduct. This sludge is a mixture of soil, water, and drilling additives, and it ca...

Why test pile before pile foundation construction?

by admin on 24-04-12

Testing piles before pile foundation construction is a crucial step in ensuring the safety and stability of any structure. Pile foundations are commonly used in construction to support buildings and other structures, especially in areas with weak or unstable soil conditions. The testing of piles ...

RC DRILLING

by admin on 24-03-28

>> Reverse Circulation is a drilling method widely used around the world. >> RC drilling uses dual wall drill rods consisting of an outer drill rod with an inner tube. These hollow inner tubes allow the drill cuttings to return back to the surface in a continuous, steady flow. >>...

Cause analysis and control measures of pile bottom sediment in rotary digging pile

by admin on 24-03-25

The sediment of pile bottom may be generated in the construction of drilling holes, the placement of steel cage, and the pouring of concrete. The analysis shows that the causes of sediment can be roughly divided into the following categories: 1.1 Pile hole hole wall collapse 1.1.1 Cause Analysis ...

Problems and countermeasures of deep pile construction

by admin on 24-03-15

1. The construction efficiency is low, mainly due to the high time of lifting the drilling tool and the low efficiency of the drill pipe to transfer the drilling pressure. the way to deal with a situation: (1) Increase the length of the drill bit to increase the amount of ballast per drill; (2) T...

What is a three-axis mixing pile?

by admin on 24-03-08

]Three axis mixing pile is a kind of long spiral pile, pile machine has three spiral drilling at the same time, construction three spiral drilling down construction at the same time, generally used for underground continuous wall construction method, is an effective form of soft foundation treat...

Detection of the foundation treatment effect

by admin on 24-03-01

1. Change the filling method After changing the foundation method, the ring knife method, static touch test, light dynamic touch test and standard penetration test should be used to test the effect of foundation treatment. During testing, the sampling point should be located at 2 / 3 of ...

Sand and silt layer rotary drilling method

by admin on 24-02-23

1. The characteristics and risks of sand and silt layer When drilling holes in fine sand or silty soil, if the groundwater level is high, mud should be used to form holes for wall protection. This kind of stratum is easy to be washed under the action of water flow because there is no adhesion bet...

Pile foundation can be selected in the following cases

by admin on 24-02-08

1. Pile foundation can be used when the foundation is weak and the natural foundation cannot meet the requirements of foundation strength and deformation. 2, when there are strict requirements for building deformation, pile foundation should be used. 3. Pile foundation should be used when high-ri...

Underground diaphragm wall main construction method :SMW construction method, TRD construction method, CSM construction method

by admin on 24-01-26

SMW(Soil Mixing Wall) continuous wall was introduced in Japan in 1976. SMW construction method is to drill to a certain depth in the field with a multi-axis drilling mixer. At the same time, cement strengthening agent is sprayed at the drill bit and mixed with the foundation soil repeatedly. Over...

Overview of TRD

by admin on 24-01-22

Introduction to TRD • TRD (Trench cutting Re-mixing Deep wall method), a continuous wall construction method under equal thickness cement soil, developed by Japan’s Kobe Steel in 1993, which uses a saw chain cutting box to continuously construct continuous walls under equal thickness cement...