Preparation Before螺旋地桩Construction and Methods for Fault Resolution Introduction

<One>>、Preparation Work Before Foundation Piling Construction

(1) We diligently organized a comprehensive briefing for all staff, ensuring that team members recognize the importance of each task. We require a meticulous approach to the construction of ground piles in accordance with the specified requirements.

(2) After the foundation piles are installed, conduct a self-inspection first. Please have the supervisor pre-inspect the main contents, and then carry out reinforcement, improvement, and formal organization of the supervisor, expert group, and quality supervision station for a special acceptance. Only after the acceptance is passed can the construction of the foundation piles proceed.

(3) Thoroughly study the drawings, diligently learn the specifications and relevant regulations, carefully compile the helical pile construction technical plan, submit it for supervision and expert review, and modify it based on their feedback to meet the requirements of pile construction specifications. Then, submit the revised plan to the supervision company for approval, and implement the plan meticulously.

(4) Organize materials and equipment according to the approved pile foundation construction plan.

Section 5: Based on the pile foundation construction plan, carry out detailed drawings for each construction section, and create a layout for each section. After obtaining approval from the supervisor, organize the construction activities.

<Spiral Steel Piling Manufacturer Introduces Fault Resolution Methods>

During construction, the reasons for drill jamming include encountering disordered strata that can cause the machine to jam during normal drilling, as well as the following factors.

Pinch-end wing breakage

2. The new drill bit has a larger diameter than the previous one.

3. During rock drilling, the machine experienced a shift in position or the drill tool became skewed within the hole.

4. During the drilling process of helical steel piles, stones fell from the wall and mouth of the hole, and large fissures and caves were encountered.

Encountering areas with clay and stone interlayers, it's difficult to expel the dust.

6. An oversight occurred during operations; during the long-term drilling halt, the cuttings were not properly blown clean, nor were the drilling tools retrieved, resulting in the impactor being buried in the cuttings.

Methods to Resolve Spiral Steel Pile Failures: The issue of broken wings has been mostly addressed with the current drill bit strength. In case of special conditions, a seamless tube with a diameter close to the hole size can be used. Insert it into the tube, fill it with substances like butter and asphalt, connect it to the drill rod, and lower it to the bottom of the hole to retrieve the broken wing. Before recovery, clean the rock dust from the bottom of the hole. For severe cases where lifting and lowering the drill tools are impossible and the impact hammer is not functioning, additional torque must be applied or auxiliary tools used to rotate the drill tools. Continue to feed air and rotate the drill tools until the problem is resolved. During heavy rock drilling, start by applying slight pressure, then gradually increase the thrust until reaching normal working pressure.