기본 정보
Material
42CrMo Hard-Wearing
Drilling Tool
Core Barrel / Casing Shoe
Formation
Silt, Loose Formation, Boulder with Large Size
Layer
Non-Filling Karst Cave
제품 설명
Advantages:
Main material: Q355B or 25CrMo from the top steel manufacturer in China.
High precision makes sure the matching of every couple of casing joints.
Auto welder helps to promote the welding performance and the strength.
Rich experience of providing casing for rotary drilling rigs of Baue, Sany and other famous brands.
Parameter:
Name | Pile Casing / Drilling Rig Casing / Rotary Casing Pipe | |
Type | Double wall casing | Single wall casing | Casing adaptor | Casing shoe | |
Shell length | 1m/2m/3m/4m/5m/6m | 1m/2m/3m/4m/5m/6m | 800mm | 586mm | |
Shell thickness | 40mm | 20mm | 20mm | 20mm | |
Diameter | 520mm-2500mm |
Material | Q355B for shells, Q355B for machined joints, 25CrMo for forged joints |
Application | Silt layer, loose formation, boulder with large size, non-filling karst cave, secant pile, inclined pile |
Casing technology
1. Casing driver
Through the connection of power head with casing adaptor, casing driver, casing and casing shoe, torque and pressure are transferred to casing and casing shoe. The drilling process alternates between casing drilling and drilling tool taking out the soil for lower resistance of casing drilling.
2. Oscilator
Oscilators are applied for larger piles or longer casings against greater resistance. One end of the oscilator is fixed on the chassis of the rotary drilling rig, and the clamp of the oscilator holds the casing tightly. Then the left and right rotary cylinder push the casing rotating repeatedly and raising or pushing down the casing to finish the drilling process.
3. Vibrating hammer
The crawler crane lifts the vibration hammer, the hydraulic clamp at the bottom of the vibration hammer holds the top of the casing. The vertical vibrating force of eccentric wheel acts on the casing to drill into the hole or pull out from the hole.
Pile casing system mainly consists of the following parts:
1. Cardanic joint
The cardanic joint is for connecting the power head with bolts and casing driver with pins, which is used to transmit torque and pressure.
2. Casing driver
The diameter of the casing driver shall be consistent with the casing diameter; the bottom of the casing driver shall be connected with the casing. The function of casing driver is to transmit torque and pressure to the casing and casing shoe.
3. Casing
The top of the casing can be connected with the casing driver or other casings through the pins, and the bottom of the casing can be connected with the casing shoe or other casings.
4. Casing shoe
The cutting bits are inlaid on the bottom of the casing shoe, and various strata and rocks are cut around by rotating and downward pressure, which can slow down the resistance of the embedded casing and improve the drilling capacity of the casing.
5. Bolts
The conical rings and the thread rings are fixed on the casing. When every two casings are connected with each other, supporting rings shall be screwed into the thread rings and the conical rings with the sealing ring.
For any advice about selection of pile casings, please email us
Production of pile casings:
Shipment and package of pile casings:
Package: iron support and wrapped with plastic film
Transportation: by sea, land and air.
Main ports: Manzhouli, Tianjin, Qiangdao, Shanghai, Yiwu, Taizhou, Shenzhen, Guangzhou, Ruili, Pingxiang, Horgos, etc.
Delivery: Fast and timely delivery.
Application of pile casings:
1. Silt layer
When for the flowing plastic geology, it easily occurs that the pile diameter contracts because of its high water content and low strength, which can cause hole collapse. At this time, casing technology is used to support the pile wall and prevent the hole collapse.
2. Loose formation
When the rotary drilling rig is working in loose geology with rich groundwater, casing technology can be adopted to prevent hole collapse and protect groundwater by supporting the hole wall.
3. Boulder with large size
When there are large size boulders, and it is easy to cause deviation of holes due to uneven geological hardness. If casing technology is adopted, it can be forced to guide through casing to prevent deviation of holes, and the casing shoe can pass through boulders.
4. Non-filling karst cave
When drilling into non-filling karst cave with large volume, the mud will be lost in a moment, and the mud pressure and wall protection will be lost at the upper part of the pile. If it is loose geology, the hole will collapse; meanwhile, the hole deviation will be caused if there is non-filling karst cave without hole wall guidance. Casing technology is adopted to prevent hole collapse and deviation through casing protection and guidance.
5. Occlusive pile
Occlusive piling can meet the requirement of foundation pit project. Through the forced guide of casing, the precise drilling can realize the close joint of pile foundation, and benefit the waterproof and supporting.
6. Inclined pile
Some foundation engineering piles need not only axial bearing capacity, but also lateral support capacity, such as offshore drilling oil platform, port drilling pile, etc. when rotary drilling rig is constructed in inclined pile, it must be constructed under the guidance of casing, otherwise it is difficult to form holes or even cause damage to parts.
***The casing technology supports the hole wall to prevent hole collapse and avoid groundwater immersion and benefit guidance, and greatly improves the piling quality. It not only meets the environmental protection requirement of city construction, but also suits the field construction requirements.
주소:
Central South University Science Park, Changsha, Hunan, China
사업 유형:
제조사/공장, 무역 회사
사업 범위:
공업 설비와 부품, 제조 가공 기계
회사소개:
Changsha RIGPA Mechanical Equipment Co., Ltd는 후난성의 수도인 창사에 위치해 있으며, 이 도시는 이 지역에서 개발된 건설 기계 산업 분야에서 세계적으로 유명합니다. 풍부한 건설 경험과 숙련된 노동자를 갖춘 숙련된 전문가 그룹에 의지하여 이 공장은 뛰어난 품질의 다양한 사양의 제품을 개발 및 제조했습니다.
Changsha RIGPA Mechanical Equipment Co., Ltd는 로터리 드릴링 장비의 연구, 개발 및 제조에 특화된 첨단 과학 및 기술 기업입니다. Kelly bar, 파일링 공구, 파일 케이싱, 드릴 비트, tremie pipe, 건설 기술 지원. 당사 제품은 Bauer, MAIT, IMT, SOILMEC, SANY의 다양한 장비에 적용할 수 있습니다. ZOOMLION, SUNWARD, XCMC 및 약간 비바람에 시비된 형성의 다양한 형태.
현재, 우리의 제품은 국내 최고 수준이고 러시아, 우크라이나, 이집트, 알제리, 캐나다, 아메리카, 호주, 뉴질랜드, 미얀마, 스리랑카, 베트남, 캄보디아, 태국, 필리핀, 말레이시아, 인도네시아 등. 많은 샘플을 할인받을 수 있습니다.
당사의 영업팀은 신속하게 응대 및 후속 조치를 수행하여 시의적절한 견적, 생산 및 배송을 제공해야 합니다. 공장에서 제품의 정확성을 보장하기 위해 장비를 정기적으로 정비해야 합니다. 제품의 품질을 안정적으로 유지하기 위해 생산 전, 생산 중 생산 환경, 포장 전 완제품을 테스트합니다. 에어 프로덕츠의 기술자들이 건설 현장에 대해 정기적으로 조사를 실시하면 제품 최적화와 혁신을 촉진할 수 있습니다.