2011 caltrans trenching and shoring manual

Osha technical manual, section v, chapter 2 excavations. Caveins pose the greatest risk and are much more likely. State of california, department of transportation caltrans, office of structure construction, trenching and shoring manual. The program may change frequently, and so will the manual. This equation sheet computes the maximum ordinate of the pressure diagram for a braced shoring wall per the 2011 caltrans trenching and shoring manual. Shoring suite is a software package that contains 4 modules. The ohio state university must comply with the requirements of the excavations, trenching and shoring standards osha 29cfr 1926. Engineering division tieback requirements city of menlo park. Download caltrans trenching and shoring manual 2011 download document.

Engineers in the us, signapore, australia, india, russia, ukraine, turkey, malaysia, and other countries use deepex as their preferred tool for deep excavation design. Receive 14 pdh involved in teaching bridge design short courses. Very few firms offer this service, since there are so few code sources for the design of temporary structures. The first edition of the bridge design practice manual bdp was. Shielding devices, commonly called trench boxes, shields, or coffins, are not designed to prevent a trench. If such a failure does occur, persons in the trench can be buried, usually resulting in serious injury or even death. Trench backfill zone trench backfill is defined as the furnishing, placing and compacting of material in the trench above the pipe zone, up to bottom of the pavement base rock, ground surface, or surface material. State of california department of transportation trenching and shoring manual.

In almost every instance, the cause of these accidents was a failure to properly shore or slope the trench. Shoring types shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations. State of california department of transportation caltrans, trenching and shoring manual, latest edition. Caltrans trenching and shoring manual 2011 download pdf. Trenching and shoring manual pdf other caltrans manuals. Osc trenching and shoring manual september 12, 2011 attached are revisions to the trenching and shoring manual. In the nonlinear analysis, the range of values represent how wall friction was assumed. Sep 12, 2011 change letter trenching and shoring manual revision no.

Source inspection guidelines for local agencies sigla manual pdf special funded projects and structures local assistance. Shoring, whether the traditional timber shores or the modern hydraulic shores, brace against and hold up the walls of an excavation, preventing caveins. Trenching and excavation safety trench collapses, or caveins, pose the greatest risk to workers lives. Trench caveins occur when dirt, sand, and rocks collapse into the trench. Shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations. Sloping is commonly used with shoring or trench boxes to cut back any soil above the protected zone. Accepted engineering practices are procedures compatible with the standards of practice required of a registered professional. Core information and requirements kinder morgan requires excavations and trenches of four 4 feet deep or greater to have a protective system as outlined in the procedure. This equation sheet computes the minimum recommended embedment depth of a cantilever shoring wall based on the limit equilibrium method per the 2011 caltrans trenching and shoring manual. Messer construction trenching manual definitions below is a list of the common definitions used in discussing trenching and shoring. Company name is dedicated to providing a safe and healthful workplace for all employees, clients, and visitors and strives to comply with all governmental regulations. The applicant shall submit shoring and excavation plans to include.

Trenching and shoring manual 2011 deep foundation mechanics. Excavation, trenching and shoring safety vivid learning systems. Chapters 16 describe how to input data and run the program, and chapters 710 describe calculation methods and theories. Connection with highway grade separations, and memo 5, shoring adjacent to union pacific company tracks. Lateral soil resistance on soldier piles or king posts in. Construction trenching for buried utilities, pipelines, water transport, and other activities may be hazardous. Temporary excavation support shoring shall conform to the requirements in the caltrans trenching and shoring manual and caltrain esess.

Coulomb failure plane angle dgillette geotechnical 16 oct 12. Refer to caltrans trenching and shoring manual 2011 for design guidance. Transportation, issued by offices of structure construction, copyright 2011. State of california, department of transportation caltrans, standard specifications, section 88, engineering fabrics c. Results are given for the pressure ordinate for braced walls with single or multiple levels of bracing and. Concrete technology manual 820 controlling shrinkage cracking document aci cowritten by caltrans falsework manual 62016 foundation manual 102015 lasrlocal assistance structure representative guidelines provided by the division of construction prestress manual 2014. Home safety manual excavation, trenching, and shoring. California occupational safety and health administration calosha, california.

Deaths caused by excavation caveins account for nearly 1% of all annual occupational deaths in the u. One must be familiar with all the definitions to understand our trenching practice. Federal railroad administration fra, safety regulations, 49 cfr part 214, latest revision. Read online terms of use caltrans book pdf free download link book now. Excavation, trenching, and shoring safety bis training. Before you begin any excavation, trenching, and shoring activities, you need to take specific steps to set up the work site to avoid the accidental disruption of utilities and assure the stability of adjacent structures. Calosha trenchingshoringexcavations excavating, trenching. Messer construction 14811 east skelly drive tulsa, ok 74116 918 2346054 p. Trenches are usually deeper than they are wide and the walls may become unstable and collapse on top of workers. Deepex accumulates a long international experience of geotechnical and structural experience in deep excavation design and software development with more than 2000 users worlwide.

Terms of use caltrans pdf book manual free download. Once a trench is over 20 feet deep, protective systems, which may include shoring, must be designed by a registered professional. A deadman is typically made of concrete, buried in the ground behind a shoring wall, and tied to the wall. Osha trench safety toolbox talk promotes safe work. Cta adjacent construction manual chicago transit authority. Commentary section for reference11, and in chapter 7 of caltrans trenching and shoring.

Terms of use acceptance of terms state of california, department of transportation the department makes this website the site including all. One program solves both geotechnical and structural issues. Dhs field guide for building stabilization and shoring. Limits of the excavation refer to caltrans trenching and shoring manual 2011 for design guidance. Box 1678 catoosa, ok 74015 trenching and shoring manual.

Caltrans trenching and shoring manual example for 50ft deep excavation. Manual, prestress manual, swppp and wpcp manual and trenching and shoring manual. Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical. The total design load for each combination shall be the sum of the factored dead lrfd bridge design specification aashto 2012b, the arema manual for caltrans and asce provide guidance to designers regarding loads. Bedding, pipe zone, and backfill classification class a. Mobile concrete batching plant is a concrete production equipment, which can reserve,cement plant manufacture small mobile portable wet mix concrete batching plant, ajy50 and ajy75 belong to small mobile concrete batching plant. Shoring systems consist of posts, wales, struts, and.

Manual ns 2010 caltrans bridge design specifications 2000 arema manual for railway engineering aisc. The 2002 arema manual was utilized in developing this guideline. Chapter 296155 wac part n, excavation, trenching, and shoring osha part 1926 subpart p, excavation, trenching and shoring aisc steel construction manual astm d 1557 laboratory compaction characteristics of soil using modified effort 1. Excavation, trenching, and shoring osha safety manuals. Hazard recognition in trenching and shoring, revised 1999. The following types of shoring are prohibited from being used within the zone of influence. Shoring is not required for trenches less than five 5 feet deep if an examination by a competent person determines the soil has no potential for a cavein.

Results are given for the pressure ordinate for braced walls with single or multiple levels of bracing and for both granular sandy and cohesive clayey soils. Bridge construction records and procedures manual, volume i 92014 bridge construction records and procedures manual, volume ii 92014 local assistance bridge deck construction manual construction manual. It is also good practice to cut a bench at the top of the shoring or trench figure 12. Over a five year period, 26 california workers were killed and 207 others injured in trench caveins. Change letter trenching and shoring manual revision no. Before you begin any excavation, trenching, and shoring activities, you need to take specific steps to setup the site to avoid the accidental disruption of utilities, and assure the stability of adjacent structuresyou need to engineer some controls and take precautionary measures.

Shoring a structure that supports the sides of an excavation and protects against caveins. Access and means of egress stairs, ladders or ramps shall be provided where employees are required to enter trench excavations over 4 feet deep. Rafael perez senior inspector kleinfelder linkedin. When done safely, trenching operations can reduce worker exposure to other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment. Use native or common material that, in the opinion of the engineer. Caltrans method caltrans negative nonlinear analysis maximum support reaction 38. This equation sheet computes the ultimate tension load and factor of safety for a deadman type anchor per the 2011 caltrans trenching and shoring manual. Attached are revisions to the trenching and shoring manual. It is our plan to provide a place of employment that.

Rafael is proficient in various caltrans manuals such as construction manual, bridge deck construction. These guidelines supplement the current, american railway engineering and maintenanceofway association arema manual of recommended practice. Trenching and shoring because of the various types of soil and their angle of repose, trenching without bracing or shoring is hazardous. Us steel sheet piling design manual earth retention.

Pdf stability of the temporary excavation between soldier piles in. Shoring designs included in this guide build on the established shoring designs used in the fema urban. This manual of shoring suite version 8 has two portions. Highways in california refer to the california manual on uniform traffic control devices 2014 rev 3 edition and use the existing encroachment permit processes and encroachment permits manual california mutcd and encroachment permit process may be found online at the following. Stability of the temporary excavation between soldier piles. Terms of use acceptance of terms state of california, department of. This site is like a library, you could find million book here by using search box in the header. Offices of structure construction, caltrans low cost tensiometers for geotechnical applications. These original documents were prepared as resources and training tools for the rescue community. Note, ibeams and appurtenances associated with the shoring plan, other than. Manual was originally developed by the office of structure. Download terms of use caltrans book pdf free download link or read online here in pdf. Temporary excavation support shoring shall conform to the requirements in the caltrans trenching and shoring manual and caltrain engineering standards for excavation support systems.