Type RXI temporary strand anchor has integration functions of recoverable, real-time monitoring of internal force and prestress stress dispersive. It is applicable in foundation pit which is deep. Its advantages include high work efficiency, real-time monitoring of internal stress, removable after construction completed.
① Force measurement component included
② Data transmission by the wire
① Steel strand
Q1: What is jet grouting?
A: The jet grouting process mainly adopts an improvised high-pressure rotary spray method to form an anchoring section of the rotary spray underreamed anchor on the bottom plate of the anchor.
① Unbonded tendon with wire;
② Free segment;
③ Hot melt anchor;
④ Bearing plate;
⑤ Anchoring section;
⑦ Base plate
Q2: Is the intelligent force measurement of this product measuring each anchor?
A: The accuracy of the intelligent anchor measurement measures up to each steel strand.
Q3: How is the measured data observed?
A: Real-time observation can be made via mobile gadgets, computer and so on as the data is transmitted to the device via wireless transmission after on-site measuring.
Q4: What is the size of the casing used by this product?
A: This product adopts jet grouting process in construction instead of casing. For ground layer that is hard and direct advancement is not allowed, three-wings drilling bit is used to drill holes beforehand followed by jet grouting.
Q5: How is the safety level of this product?
A: The static load coefficient of the hot melt removable anchor reached 96% which is nearly the same as the strength of steel strand. Besides, it satisfies the large fatigue test up to 2 million times and therefore it is applicable in permanent structure.
Q6: How is the recovering speed？
A: With the use of fully automatic recovering equipment, taking 6 anchors with length 25 meters as an example, a group of 2 people in assembly line can complete the recovery of 90 anchors.
Q7: How much is the recovery rate of the anchor?
A: The rate is higher than 95% normally. Approaches can be made to realize 100% recovering rate.
Q8: How many cable structures can this product built up at most?
A: Using only this model, 6 cables can be built at most where the largest internal diameter of the anchor rod body is 205mm.