【Daily Discussion】Utilities - Civil Engineering - 20200718

Cylindrical, expanded cylindrical, conical

This post was last edited by huanghong on 2020-7-18 at 11:08. 01 Full-length bonded anchor rod: An anchor rod whose hole is filled with bonding material throughout its entire length. 02 Prestressed anchor rod: An anchor rod to which prestress is applied. 03 Friction-type anchor: An anchor that relies on the friction between the anchor body and the wall of the hole for anchoring. 04 Grout-anchored bolts: Bonded anchors using cement grout or rapid-setting cement grout as the anchoring agent. 05 Cement cartridge anchor: A bonded anchor that uses a cement cartridge as the anchoring agent. 06 Resin anchor rod: A bonded anchor rod using resin as the anchoring agent. 07 Self-drilling anchor rods: These rods combine the function of a drilling rod for creating holes; they integrate hole drilling, grouting, and anchoring into one unit, and are also known as self-propelling anchor rods. Anchor rod support is widely used in the reinforcement of underground chambers and tunnels, as well as in the stabilization of high slopes. For bolt support, cement mortar, chemical anchoring agents, or resins are generally used as binders for the bolts, or mechanical methods are employed to anchor the bolts within the drilled holes. 01 Full-length bonded anchor: An anchor in which the entire length of the anchor hole is filled with bonding material. 02 Prestressed anchor rod: An anchor rod to which prestress is applied. 03 Friction-type anchor: An anchor that relies on the friction between the anchor body and the wall of the hole for anchoring. 04 Grout-anchored bolts: Bonded anchors using cement grout or rapid-setting cement grout as the anchoring agent. 05 Cement cartridge anchor: A bonded anchor that uses a cement cartridge as the anchoring agent. 06 Resin anchor rod: A bonded anchor rod using resin as the anchoring agent. 07 Self-drilling anchor rod: The anchor rod itself serves as a drilling rod for creating holes; it combines hole drilling, grouting, and anchoring into one unit, and is also known as a self-propelling anchor rod. 08 Bored pipe anchor: An anchor in which a thin-walled steel pipe with longitudinal slits is forced into a drill hole that is smaller than its outer diameter; the anchoring effect is achieved through the radial pressure exerted by the steel pipe on the walls of the hole. 09 Grouted anchor with tubular shaft: A mortar anchor in which a steel tube equipped with a certain number of small holes in its wall is used as the shaft; after being inserted into a drilled hole, mortar is injected into the anchor hole through these holes in the shaft’s cavity. 10 Water-swelling anchor: An anchor in which a specially shaped hollow rod made of thin-walled steel tube is inserted into a drill hole that is slightly larger than it; high pressure water is injected into the cavity of this rod, causing it to expand and generate frictional force with the wall of the hole, thereby providing anchoring strength. 11 Permanent anchor rods: Anchor rods that have a service life consistent with that of the main structure, are able to maintain stable performance and meet quality standards throughout the structure’s operational life, or have the conditions necessary for maintenance and replacement, thereby enabling continued use. 12 Temporary anchor rods: These are anchor rods that do not meet the same service life standards as those used in the main structure; they are only required to function during the construction phase of the project or at specific stages. Under normal operating conditions of the project, their role is generally not taken into account. 13 Systematic anchor rods: Anchor rods that are arranged at regular intervals and in a systematic pattern across the entire excavation surface, in accordance with the requirements for the overall stability of the rock (soil) mass. 14 Random anchor rods: Anchor rods installed in specific areas to prevent the collapse or sliding of rock (soil) masses.

Full-length bonded anchor rods, prestressed anchor rods, friction-type anchor rods, mortar anchor rods, cement paste anchor rods, resin anchor rods, self-drilling anchor rods, slotted tube anchor rods, grouted flower-tube anchor rods, water-swelling anchor rods, permanent anchor rods, temporary anchor rods, system anchor rods, random anchor rods

Full-length bonded anchor rods, prestressed anchor rods, friction-type anchor rods, mortar anchor rods, cement paste anchor rods, resin anchor rods, self-drilling anchor rods, slotted tube anchor rods, grouted flower-tube anchor rods, water-swelling anchor rods, permanent anchor rods, temporary anchor rods, system anchor rods, random anchor rods

01 Full-length bonded anchor: An anchor in which the entire length of the anchor hole is filled with bonding material. 02 Prestressed anchor rod: An anchor rod to which prestress is applied. 03 Friction-type anchor: An anchor that relies on the friction between the anchor body and the wall of the hole for anchoring. 04 Grout-anchored bolts: Bonded anchors using cement grout or rapid-setting cement grout as the anchoring agent. 05 Cement cartridge anchor: A bonded anchor that uses a cement cartridge as the anchoring agent. 06 Resin anchor rod: A bonded anchor rod using resin as the anchoring agent. 07 Self-drilling anchor rod: The anchor rod itself serves as a drilling rod for creating holes; it combines hole drilling, grouting, and anchoring into one unit, and is also known as a self-propelling anchor rod. 08 Bored pipe anchor: An anchor in which a thin-walled steel pipe with longitudinal slits is forced into a drill hole that is smaller than its outer diameter; the anchoring effect is achieved through the radial pressure exerted by the steel pipe on the walls of the hole. 09 Grouted anchor with tubular shaft: A mortar anchor in which a steel tube equipped with a certain number of small holes in its wall is used as the shaft; after being inserted into a drilled hole, mortar is injected into the anchor hole through these holes in the shaft’s cavity. 10 Water-swelling anchor: An anchor in which a specially shaped hollow rod made of thin-walled steel tube is inserted into a drill hole that is slightly larger than it; high pressure water is injected into the cavity of this rod, causing it to expand and generate frictional force with the wall of the hole, thereby providing anchoring strength. 11 Permanent anchor rods: Anchor rods that have a service life consistent with that of the main structure, are able to maintain stable performance and meet quality standards throughout the structure’s operational life, or have the conditions necessary for maintenance and replacement, thereby enabling continued use. 12 Temporary anchor rods: These are anchor rods that do not meet the same service life standards as those used in the main structure; they are only required to function during the construction phase of the project or at specific stages. Under normal operating conditions of the project, their role is generally not taken into account. 13 Systematic anchor rods: Anchor rods that are arranged at regular intervals and in a systematic pattern across the entire excavation surface, in accordance with the requirements for the overall stability of the rock (soil) mass. 14 Random anchor rods: Anchor rods installed in specific areas to prevent the collapse or sliding of rock (soil) masses.

This post was last edited by h20090630 on 2020-7-18 at 14:56. 01 Full-length bonded anchor rod: An anchor rod whose hole is filled entirely with bonding material. 02 Prestressed anchor rod: An anchor rod to which prestress is applied. 03 Friction-type anchor: An anchor that relies on the friction between the anchor body and the wall of the hole for anchoring. 04 Grout-anchored bolts: Bonded anchors using cement grout or rapid-setting cement grout as the anchoring agent. 05 Cement cartridge anchor: A bonded anchor that uses a cement cartridge as the anchoring agent. 06 Resin anchor rod: A bonded anchor rod using resin as the anchoring agent. 07 Self-drilling anchor rod: The anchor rod itself serves as a drilling rod for creating holes; it combines hole drilling, grouting, and anchoring into one unit, and is also known as a self-propelling anchor rod. 08 Bored pipe anchor: An anchor in which a thin-walled steel pipe with longitudinal slits is forced into a drill hole that is smaller than its outer diameter; the anchoring effect is achieved through the radial pressure exerted by the steel pipe on the walls of the hole. 09 Grouted anchor with tubular shaft: A mortar anchor in which a steel tube equipped with a certain number of small holes in its wall is used as the shaft; after being inserted into a drilled hole, mortar is injected into the anchor hole through these holes in the shaft’s cavity. 10 Water-swelling anchor: An anchor in which a specially shaped hollow rod made of thin-walled steel tube is inserted into a drill hole that is slightly larger than it; high pressure water is injected into the cavity of this rod, causing it to expand and generate frictional force with the wall of the hole, thereby providing anchoring strength. 11 Permanent anchor rods: Anchor rods that have a service life consistent with that of the main structure, are able to maintain stable performance and meet quality standards throughout the structure’s operational life, or have the conditions necessary for maintenance and replacement, thereby enabling continued use. 12 Temporary anchor rods: These are anchor rods that do not meet the same service life standards as those used in the main structure; they are only required to function during the construction phase of the project or at specific stages. Under normal operating conditions of the project, their role is generally not taken into account. 13 Systematic anchor rods: Anchor rods that are arranged at regular intervals and in a systematic pattern across the entire excavation surface, in accordance with the requirements for the overall stability of the rock (soil) mass. 14 Random anchor rods: Anchor rods installed in specific areas to prevent the collapse or sliding of rock (soil) masses.

Cylindrical, expanded cylindrical, conically expanded.

Cylindrical, expanded cylindrical, conically expanded

(1) Wooden anchor rod. There are two types of wooden anchor rods used in my country: ordinary wooden anchor rods and compressed wooden anchor rods. (2) Reinforced bar dao or wire rope mortar anchor rod. Cement sand slurry is used as the binder between the anchor rod and the surrounding rock. (3) Inverted wedge metal anchor rod. This type of anchor rod was once one of the most widely used forms of anchors. Due to its simple processing, easy installation, and certain anchoring strength, this type of anchor rod is still in use to some extent to this day. (4) Pipe-joint anchor rod. It is a full-length friction-anchored bolt. This type of anchor rod features simple installation, reliable anchoring, high initial anchoring force, and an increasing long-term anchoring force as the surrounding rock moves. (5) Resin anchor bolts. Using resin as the binder for anchor rods is costly. (6) Rapid-hardening expansive cement bolts. It is made by using ordinary Portland cement or slag Portland cement along with admixtures, and possesses properties such as rapid setting, early strength, water reduction, and expansion. (7) Double-quick cement anchor rods. It is made by mixing ready-mixed early-strength cement and double-quick cement in a certain proportion. It features rapid setting and hardening, as well as early strength.

Full-length bonded anchor rods, prestressed anchor rods, friction-type anchor rods, mortar anchor rods, cement paste anchor rods, resin anchor rods, self-drilling anchor rods, slotted tube anchor rods, grouted flower-tube anchor rods, water-swelling anchor rods, permanent anchor rods, temporary anchor rods, system anchor rods, random anchor rods