Some features of Sinorock self drilling rock anchor :
Lightweight and economical with environmentally sensitive installation. By pulling up on the anchor tendon, the ‘duck bill’ rotates into a locked position in undisturbed soil.For soils that don’t allow for open hole drilling, the hollow fully-threaded bar serves as both the drill string and the grouted anchor.Utilise cementitious grout to resist all naturally occurring forces, transferring load by relying on steel and geotechnical holding capacity.
Self drilling anchors are designed and fabricated to the latest standards as set forth in the Post-Tensioning Institute’s Recommendations for Pre-stressed Rock and Soil Anchors.
With 3 years in the underground mining sector,Sinorock is the largest provider of comprehensive ground support solutions.Especially Sinorock self drilling anchor bolt has an good effect on Mining,the anchor bolt for mning has a good result.Sinorock’s manufacturing facility is ISO 9001 certified, producing quality components that meet or exceed the Standard specification for anchor bolt & accessories.
Self drilling rock bolt - Most commonly used in tunnel building and reinforcement, these long bolts work to increase a structure's stability. With a unique physical appearance and three specific anchoring types, a SDA bolt is one of the most commonly used anchoring techniques around the world.
All Sinorock Self drilling Anchor utilise a small diameter greased filled high density polyethylene sheathing, allowing for a greater number of individual strands to be contained in a given drill hole size.
Self drilling anchor is the core product of Sinorock.It is a reliable and convenient anchoring system which is applied in complicated geological conditions for rock support work. It is particularly applied in the following geological conditions, such as weathered rock, gravel layer, backfill, hard conglomerate, gravel layer, etc.We has advanced rock bolt production lines,accessories processing equipments and an entire set of rock bolt testing equipments, Sinorock has great advantages in Self drilling anchor.
As a valued distributor for a wide range of industry leading and recognized manufacturers, we focus on adding value with every Sinorock self drilling rock bolt experience. We offer a long-term partnership with businesses supplying excellent sales, service and parts to meet the needs of your business.
Rock bolting has great supporting effect and ensures project’s security and long-term stability.The self drilling rock bolt is unique anchoring system and fulfills current and increasing demands of the tunneling industry and ground engineering for safer and faster production. Sinorock self drilling rock bolt is a reliable and convenient anchoring system which is applied in complicated geological conditions for rock support work. It is particularly applied in the following geological conditions, such as weathered rock, gravel layer, backfill, hard conglomerate, etc. The self drilling rock bolt system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil.
Adopting self drilling rock bolt to reinforce water-conveying tunnel is the application of geotechnical engineering technology in the aspect of tunnel project, which transmits structures’ tension by using surrounding rocks’ shearing strength or keeps self-stability of excavation face.
The Sinorock self drilling anchor system is today’s solution for a fast and efficient anchoring system into virtually any type of soil.The system has historically been known as a “self drilling anchor bar” because the hollow fully-threaded bar serves as both the drill string and the grouted anchor, thus installation is performed in a single operation.
The thread form (similar for all diameters)of our hollow anchor bar is a unique feature that provides a lower thread pitch angle to provide easier coupling disengagement without “locking up”, than conventional rope threads during drilling operations.This thread form provides more surface area and thread/deformations per unit length for superior bond capabilities over that of competitive drill steel thread forms.
Urban deep foundation excavations are generally surrounded with dense buildings. So their working space is very narrow, especially when they are close to the foundations of adjacent buildings or structures in construction. Many scholars, engineers and technicians have already worked a lot in the displacement-controlling design of deep foundation excavations recent years, however, difficulty remains to be solved in correlation among the retaining structures, soil deformation around the excavations and the displacements of adjacent structures.
Self drilling anchor bolt is a flexible shoring system and is constructed from top to the bottom in steps parallel to excavation.The main elements of the system are self drilling anchors, reinforced shotcrete surface cover and subhorizontal drains.The length and spacing of the self drilling anchors are variable depending on the depth of the excavation, environmental loads and soil conditions, etc.
In this self drilling anchor system, depending on the ground conditions after each excavation stage pre-shotconcrete is applied, followed by passive anchor drilling. Appropriate reinforcement is placed into the drill holes according to the design and the drill hole around the reinforcement is grouted with cement grout.
Sinorock - We concentrate our efforts on the special self-drilling hollow bolt markets and has become a steel merchant of good repute over the past 3 years.
Sinorock hollow anchor bolts are ideal for micropiles, soil nails, and tie down and tie back anchors in difficult ground conditions like weathered and decomposed rock, round gravel, sand and clay soils for either permanent or temporary use.
Sinorock supplies ground anchoring systems, for all forms of temporary and permanent works, and rapidly installed mini piles which have wide ranging applications.
Extensive lab and field testing has demonstrated the effectiveness of the hollow anchor bar in providing more efficient energy transfer, higher bit penetration rates, and longer thread life for both bit and rod.Sinorock hollow anchor bar is designed to increase drilling efficiency and to reduce operating costs for hard rock drilling and anchoring operations.
Due to superior reliability and extensive application,Sinorock hollow anchor bar .
sinorock exports a wide range of rock bolts in accordance with the highest quality requirement of the engineering industry. we assure the highest quality and on-time delivery of rock bolts manufactured in china, enabling to progress your engineering projects worldwide.
in the process of several years of development, the products we make are widely used in tunneling project, mining exploration, hydro engineering projects and other infrastructure construction etc. many customers speak highly of our products and service. now our customers are distributed all over the world. this is credible reputation for an rock bolt supplier to some extent.
sinorock takes great pride in making your rock bolts buying simple and fast.we have many custom options avaiable for you in order to create a perfect order.
sinorock is your single source for your high quality rock bolt,we are committed to fulfilling your orders accurately and delivering them in the timeliest manner possible.
the goal to be the most professional rock bolt supplier has always been attached great importance.sinorock has several advanced rock bolt production lines, accessories processing equipment, and great research and development group. as an reliable rock bolt company, we have tensile testing machine
to test the bar quality to guarantee all of the products delivered to customers are qualified. the standardized management system are our powerful guarantee and help us to produce excellent, energy-efficient and environmental rock bolts.
Ongoing development of faster, safer and more exotic tunnelling techniques places a constant pressure on manufacturers to provide more efficient rock support solutions which will help the shortening of cycle time. As ground conditions get more and more demanding, emphasis is placed on flexible and intelligent support systems in which rock and soil reinforcement is expected to contribute to the productivity and safety of the operation. The trend has been to provide rock support and reinforcement systems that are easy to install, assure efficiency and provide safety. For the last 10 years,Sinorock has been offering the rock bolt concept as a unique, safe and reliable system of rock support.
Sinorock’s Rock Reinforcement Center in China brings together the skills necessary for the development of superior rock reinforcement products to serve the tunnelling, mining and construction industries worldwide. The combined product portfolio includes SDA anchors with all necessary accessories. The strategy to act as “The professional supplier of specific and complete solutions in rock and soil reinforcement” has paid off, and the effort to invent and commit ourselves to more productive solutions is stronger than ever.
Sinorock has been playing vital role in supplying most of the rock bolt products to major construction projects, mining,tunneling slope stabilization,foundation support . Our company is managed by professional , highly qualified management and technical teams with extensive knowledge and hands on experience with superior leadership skills. If given a chance, we would be very glad to serve your esteemed company in terms of supplying rock bolt products which are relevant and in range with competitive price.