2011 caltrans trenching and shoring manual

The applicant shall submit shoring and excavation plans to include. These guidelines supplement the current, american railway engineering and maintenanceofway association arema manual of recommended practice. 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. This equation sheet computes the maximum ordinate of the pressure diagram for a braced shoring wall per the 2011 caltrans trenching and shoring manual. These original documents were prepared as resources and training tools for the rescue community. Caltrans trenching and shoring manual example for 50ft deep excavation. Shoring systems consist of posts, wales, struts, and. Osha technical manual, section v, chapter 2 excavations. Terms of use acceptance of terms state of california, department of transportation the department makes this website the site including all. 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. Excavation, trenching, and shoring safety bis training. 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. When done safely, trenching operations can reduce worker exposure to other potential hazards include falls, falling loads, hazardous atmospheres, and incidents involving mobile equipment.

Chapters 16 describe how to input data and run the program, and chapters 710 describe calculation methods and theories. Manual was originally developed by the office of structure. Engineering division tieback requirements city of menlo park. Shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations.

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. Coulomb failure plane angle soil mechanics engineering. State of california department of transportation trenching and shoring manual. Cta adjacent construction manual chicago transit authority. 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. Manual ns 2010 caltrans bridge design specifications 2000 arema manual for railway engineering aisc. Us steel sheet piling design manual earth retention. In almost every instance, the cause of these accidents was a failure to properly shore or slope the trench. Shoring a structure that supports the sides of an excavation and protects against caveins. 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. Results are given for the pressure ordinate for braced walls with single or multiple levels of bracing and. Caveins pose the greatest risk and are much more likely.

Transportation, issued by offices of structure construction, copyright 2011. The program may change frequently, and so will the manual. Rafael is proficient in various caltrans manuals such as construction manual, bridge deck construction. Bedding, pipe zone, and backfill classification class a. This site is like a library, you could find million book here by using search box in the header. 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. Excavation, trenching, and shoring osha safety manuals. Trenching and shoring manual 2011 deep foundation mechanics. Note, ibeams and appurtenances associated with the shoring plan, other than. 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. Box 1678 catoosa, ok 74015 trenching and shoring manual.

Trenching and excavation safety trench collapses, or caveins, pose the greatest risk to workers lives. Connection with highway grade separations, and memo 5, shoring adjacent to union pacific company tracks. Messer construction 14811 east skelly drive tulsa, ok 74116 918 2346054 p. Change letter trenching and shoring manual revision no. It is our plan to provide a place of employment that. Sep 12, 2011 change letter trenching and shoring manual revision no. 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. Engineers in the us, signapore, australia, india, russia, ukraine, turkey, malaysia, and other countries use deepex as their preferred tool for deep excavation design. Deepex accumulates a long international experience of geotechnical and structural experience in deep excavation design and software development with more than 2000 users worlwide. Sloping is commonly used with shoring or trench boxes to cut back any soil above the protected zone. Hazard recognition in trenching and shoring, revised 1999.

Federal railroad administration fra, safety regulations, 49 cfr part 214, latest revision. Access and means of egress stairs, ladders or ramps shall be provided where employees are required to enter trench excavations over 4 feet deep. Attached are revisions to the trenching and shoring manual. Receive 14 pdh involved in teaching bridge design short courses. 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. California occupational safety and health administration calosha, california. Temporary excavation support shoring shall conform to the requirements in the caltrans trenching and shoring manual and caltrain esess. Deaths caused by excavation caveins account for nearly 1% of all annual occupational deaths in the u. Messer construction trenching manual definitions below is a list of the common definitions used in discussing trenching and shoring.

Construction trenching for buried utilities, pipelines, water transport, and other activities may be hazardous. 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. Offices of structure construction, caltrans low cost tensiometers for geotechnical applications. Shielding devices, commonly called trench boxes, shields, or coffins, are not designed to prevent a trench. Over a five year period, 26 california workers were killed and 207 others injured in trench caveins. Temporary excavation support shoring shall conform to the requirements in the caltrans trenching and shoring manual and caltrain engineering standards for excavation support systems. Deaths caused by excavation caveins accounts for nearly 1% of all annual occupational deaths in the nation. Source inspection guidelines for local agencies sigla manual pdf special funded projects and structures local assistance. All books are in clear copy here, and all files are secure so dont worry about it. Terms of use acceptance of terms state of california, department of. Use native or common material that, in the opinion of the engineer. Excavation, trenching and shoring safety vivid learning systems. Trenches are usually deeper than they are wide and the walls may become unstable and collapse on top of workers.

Commentary section for reference11, and in chapter 7 of caltrans trenching and shoring. The first edition of the bridge design practice manual bdp was. Trenching and shoring manual 2011 free ebook download as pdf file. Shoring types shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations. Calosha trenchingshoringexcavations excavating, trenching. Trenching and shoring manual by state of california, department of. In the nonlinear analysis, the range of values represent how wall friction was assumed. Terms of use caltrans pdf book manual free download. He was trained by caltrans structures in 2003 winter training on shoring and in 2009 consultant training on shoring by acec. If such a failure does occur, persons in the trench can be buried, usually resulting in serious injury or even death. Lateral soil resistance on soldier piles or king posts in.

A deadman is typically made of concrete, buried in the ground behind a shoring wall, and tied to the wall. The 2002 arema manual was utilized in developing this guideline. Section 3 prohibited and preferred shoring types and elements section 3 revised page 3. Shoring, whether the traditional timber shores or the modern hydraulic shores, brace against and hold up the walls of an excavation, preventing caveins. Home safety manual excavation, trenching, and shoring.

State of california department of transportation caltrans, trenching and shoring manual, latest edition. Caltrans trenching and shoring manual 2011 download pdf. Download terms of use caltrans book pdf free download link or read online here in pdf. Refer to caltrans trenching and shoring manual 2011 for design guidance. Accepted engineering practices are procedures compatible with the standards of practice required of a registered professional. This sheet assumes the deadman is continuous and close to the ground surface, where d. Limits of the excavation refer to caltrans trenching and shoring manual 2011 for design guidance. Pdf stability of the temporary excavation between soldier piles in. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Shoring suite is a software package that contains 4 modules. Stability of the temporary excavation between soldier piles. Once a trench is over 20 feet deep, protective systems, which may include shoring, must be designed by a registered professional. 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.

Dhs field guide for building stabilization and shoring. Trench caveins occur when dirt, sand, and rocks collapse into the trench. Trenching and shoring because of the various types of soil and their angle of repose, trenching without bracing or shoring is hazardous. One must be familiar with all the definitions to understand our trenching practice. 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. Rafael perez senior inspector kleinfelder linkedin. 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. This manual of shoring suite version 8 has two portions. Coulomb failure plane angle dgillette geotechnical 16 oct 12. Osc trenching and shoring manual september 12, 2011 attached are revisions to the trenching and shoring manual. Caltrans trenching and shoring manual 2011 free ebook download as pdf file. One program solves both geotechnical and structural issues. The ohio state university must comply with the requirements of the excavations, trenching and shoring standards osha 29cfr 1926.

Very few firms offer this service, since there are so few code sources for the design of temporary structures. Read online terms of use caltrans book pdf free download link book now. It is also good practice to cut a bench at the top of the shoring or trench figure 12. Trenching and shoring manual pdf other caltrans manuals. Trenching and excavation safety occupational safety and. 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. Osha trench safety toolbox talk promotes safe work. Caltrans method caltrans negative nonlinear analysis maximum support reaction 38.