diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/c_THERMO_RICHARDS_MECHANICS.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/c_THERMO_RICHARDS_MECHANICS.md
new file mode 100644
index 0000000000000000000000000000000000000000..7166b3fa9a4f1a457321ded7dbcccc3bddad5f3c
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/c_THERMO_RICHARDS_MECHANICS.md
@@ -0,0 +1,2 @@
+Non-isothermal Richards flow process coupled with deformation process in
+porous media. It is for coupled thermal hydraulic mechanical processes.
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/i_process_variables.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/i_process_variables.md
new file mode 100644
index 0000000000000000000000000000000000000000..81c7ff5a5f4fd458cc5ef57595443ea9a21d1e97
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/i_process_variables.md
@@ -0,0 +1,8 @@
+The process variables for temperature, pressure and displacement.
+
+If higher order elements (order=2) are chosen for the displacement variable,
+ the linear elements (order=1) have to be used for the temperature and
+ the pressure variables. That means to use the Talyor-Hood elements.
+
+If the linear elements (order=1) are used for displacement variable,
+ they are used for temperature and the pressure variables as well.
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_displacement.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_displacement.md
new file mode 100644
index 0000000000000000000000000000000000000000..b6d5f29924d468888547d4a5f9eef957f496c26c
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_displacement.md
@@ -0,0 +1 @@
+Process variable name for displacement.
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_pressure.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_pressure.md
new file mode 100644
index 0000000000000000000000000000000000000000..a9fd77e321e44c2e52555be85226e76e8953e863
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_pressure.md
@@ -0,0 +1 @@
+Process variable name for pore pressure.
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_temperature.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_temperature.md
new file mode 100644
index 0000000000000000000000000000000000000000..f6efd419ab89f60030e6f044c02c53fd9cc44763
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/process_variables/t_temperature.md
@@ -0,0 +1 @@
+Process variable name for temperature.
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_coupling_scheme.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_coupling_scheme.md
new file mode 100644
index 0000000000000000000000000000000000000000..4a7c539e00a34b4838c95be72d8797938f36ad04
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_coupling_scheme.md
@@ -0,0 +1,2 @@
+Coupling scheme. So far, only the full monolithic scheme is available.
+
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_initial_stress.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_initial_stress.md
new file mode 100644
index 0000000000000000000000000000000000000000..676cbf5139183f3ebeb303fc61a2a73db5c0a6bd
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_initial_stress.md
@@ -0,0 +1 @@
+\copydoc ProcessLib::RichardsMechanics::RichardsMechanicsProcessData::initial_stress
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_mass_lumping.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_mass_lumping.md
new file mode 100644
index 0000000000000000000000000000000000000000..f3a2c68f841ace147e1ec114401ccc4ba3c0aa52
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_mass_lumping.md
@@ -0,0 +1 @@
+A tag for enabling diagonal lumping of the mass matrix of the Richards equation.
\ No newline at end of file
diff --git a/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_specific_body_force.md b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_specific_body_force.md
new file mode 100644
index 0000000000000000000000000000000000000000..1263b2368695f469f4520e59e1f53c6d0c49b73d
--- /dev/null
+++ b/Documentation/ProjectFile/prj/processes/process/THERMO_RICHARDS_MECHANICS/t_specific_body_force.md
@@ -0,0 +1 @@
+\copydoc ProcessLib::RichardsMechanics::RichardsMechanicsProcessData::specific_body_force